Pic R1020 Best Practices Guide

User Manual: R1020

Open the PDF directly: View PDF PDF.
Page Count: 49

Disclaimer
All users of the information contained in this document understand
and agree that IFTA, Inc. is not responsible for the accuracy of the
information provided to IFTA, Inc. by the person or persons that
prepared the materials herein. All information contained in this
document is provided to IFTA, Inc. by the responsible party or parties
and IFTA, Inc. does not alter the information provided or
independently confirm the accuracy of the information provided. The
sole responsibility of the accuracy of the data lies solely with the
person or persons who prepared the materials.
This document was prepared by the IFTA Audit Committee as a tool
to assist member jurisdictions in conducting IFTA audits. Member
jurisdictions are in no way required to implement the practices
contained herein by the IFTA Governing Documents. Suggested
changes or additions should be addressed to the IFTA Audit
Committee.
BEST PRACTICES AUDIT GUIDE
Section TABLE OF CONTENTS Page
i May 2006
I. Introduction 1
II. Eligibility / Exemptions 1
A. Vehicles 1
B. Fleet 2
III. Licensee Responsibilities 2
A. Distance Records 2
B. Fuel Records 3
C. Trip / Temporary Permits 5
D. Monthly / Quarterly Summaries 5
E. Supporting Information for IVDRs 6
F. Lessor Responsibility 6
G. Program Compliance Reviews 7
H. Records Retention 8
IV. General Accounting and Auditing Standards 8
A. Standards 8
B. Audit Responsibilities 9
V. Audit Plan 9
A. Audit Selection and Assignment 9
B. Audit Preparation 9
1. Audit Package and Permanent Office File Review 9
2. Audit Period Determination 10
3. Selection of Representative Sample Period 10
4. Audit Notification 10
VI. Conducting the Audit 11
A. Background 11
1. Understanding the Emphasis of the Audit 11
2. Pre-Audit Conference 11
3. Understanding of Fleet and Lease Agreements 15
B. Determining Quality of Source Documents 16
1. Nature of Evidence 16
2. Verifying Equipment List 17
3. Distance Recaps 17
4. Computerized Distance System 17
5. Fuel Records 20
BEST PRACTICES AUDIT GUIDE
Section TABLE OF CONTENTS Page
ii May 2006
6. Inadequate Records 21
C. Sampling 22
1. Types of Sampling 22
2. Sample Size 23
3. Sampling Source Documents 23
4. Accountable Distances 24
5. Practical Aspects of Sampling 24
6. Some Pointers Regarding Sampling 24
7. Evaluating Sampling Results 26
8. Projecting Errors 27
D. Distance / Fuel Verification 28
1. Testing the Distance / Fuel Recorded on the Licensee’s System 28
2. Accuracy of the Distance and Fuel Information on the IVDRs 29
3. Relevance and Frequency of Differences in IVDR Distances / Fuel 29
4. Tracing IVDRs to the Recaps 31
5. Testing the Accuracy of the Licensee’s Recaps / Schedules 31
6. Relevance and Frequency of Recap Differences 31
7. Odometer Readings 32
8. Distance and Fuel Adjustments 32
9. Isolated Errors 33
10. Sampling vs. Full Audit of Records 33
11. Determining Audited Distance and Fuel 34
E. Equipment Verification 35
F. Audit Results 35
1. Determining Results 35
2. Exit Conference and Audit Finalization 36
G. Audit Report and Working Paper File 38
1. Audit Report 38
2. Working Papers 39
3. Permanent Audit File 40
4. Indexing Working Papers 41
5. General Working Paper Preparation 41
6. Review of the Audit 43
7. Netting of Audit Adjustments 44
8. Communications with Other Jurisdictions 44
BEST PRACTICES AUDIT GUIDE
Page 1 of 45 May 2006
I. INTRODUCTION
IFTA - Section Reference: R130, R140, R150, R305, R1310, A100, R600, R610, R620,
R625, R630, R635, R640, R800, R810.100, R810.200, R820, R830.100, R830.200, R840
The focus of the International Fuel Tax Agreement (IFTA) audit program should be to
determine if the licensee is in compliance with the terms of the agreement and with
jurisdictional statutes.
The IFTA is a multijurisdictional fuel tax agreement that simplifies the reporting of fuel taxes
by interjurisdictional motor carriers. The IFTA establishes a single uniform system for
administering and collecting fuel consumption taxes from interjurisdictional carriers. Under
IFTA, motor carriers register with their base jurisdiction, and receive credentials, which allow
them to travel through other IFTA member jurisdictions. Carriers then file a single quarterly
return with a single payment to their base jurisdiction that covers all of their travel in other
IFTA member jurisdictions. The base jurisdiction processes the IFTA tax return and
forwards funds to each jurisdiction or requests funds for net fuel taxes.
The base jurisdiction is required to audit the motor carriers representing not only
their own interests, but also the interests of all other member jurisdictions. An audit
program is therefore an important and essential compliance measure and ensures that
proper revenues are being collected by each jurisdiction.
II. ELIGIBILITY / EXEMPTIONS
Eligibility under IFTA:
A. Vehicles - R245.100, R245.200, R245.300, R221, R305
Qualified motor vehicle means a motor vehicle used, designed or maintained for
transportation of persons or property and:
Having two axles and a gross vehicle weight or registered gross vehicle weight
exceeding 26,000 pounds or 11,797 kilograms, or
Having three or more axles regardless of weight, or
Is used in combination, when the weight of such combination exceeds 26,000
pounds or 11,797 kilograms gross vehicle or registered gross vehicle weight.
Qualified motor vehicle does not include recreational vehicles.
Any person based in a member jurisdiction operating a qualified motor vehicle(s) in two
or more member jurisdictions is required to license under this Agreement, except as
indicated in IFTA Articles of Agreement, Sections R310, and R500.
BEST PRACTICES AUDIT GUIDE
Page 2 of 45 May 2006
B. Fleet
Fleet means one or more vehicles.
Under IFTA, a carrier may be registered in more than one base jurisdiction if its
operations in each jurisdiction meet the criteria for IFTA licensing and reporting.
When a carrier has several fleets, which would otherwise be based in two (2) or more
IFTA jurisdictions, the commissioners of the affected jurisdictions may allow the
consolidation of the fleets for reporting purposes. The carrier must apply to each
jurisdiction for permission to consolidate the fleets.
Exemptions under IFTA - R830.100, R830.200
All vehicles under 26,000 pounds or 11,797 kilograms gross vehicle weight, or
Trailers, those vehicles not used for propulsion
Those vehicles traveling only intra-jurisdictionally, regardless of weight, or
Recreational vehicles
Also, each jurisdiction may designate exempt vehicles (as well as miles and/or fuel) i.e.
municipal vehicles, farm vehicles. A list of the jurisdictional exemptions may be perused
at the IFTA, Inc. website.
Exempt fuel and/or distance must be included in total reported fuel and/or distance in
determining the MPG. Refer to each jurisdictional exemption to determine how to claim
the exemption. (See IFTA Articles of Agreement sections R1000 and R1100)
A Licensee who qualifies as an IFTA carrier, but does not wish to participate in the
IFTA
Program must obtain fuel tax permits to travel through member jurisdictions.
III. LICENSEE RESPONSIBILITIES - R700
Every licensee shall maintain records to substantiate information reported on the quarterly
tax returns. Operational records shall be maintained or be made available for audit in the
base jurisdiction. Recordkeeping requirements shall be specified in the IFTA Procedures
manual.
A. Distance Records - P540.100, P540.100.005 - -.015, P540.200, P540.200.005 - -.050
Licensees shall maintain detailed distance records, which show operations on an
individual-vehicle basis.
The Operational records shall contain, but not be limited to:
Taxable and non-taxable usage of fuel;
Distance traveled for taxable and non-taxable use; and
Distance recaps for each vehicle for each jurisdiction in which the vehicle operated.
BEST PRACTICES AUDIT GUIDE
Page 3 of 45 May 2006
An acceptable distance accounting system is necessary to substantiate the information
reported on the tax return filed quarterly or annually. A licensee’s system, at a minimum,
must include distance data on each individual vehicle for each trip and be recapitulated
in monthly fleet summaries. Supporting information should include:
Date of the trip (starting and ending)
Trip origin and destination
Route of travel (may be waived by the base jurisdiction)
Beginning and ending hub odometer/odometer reading of the trip (may be waived by
the jurisdiction)
Total trip miles/kilometers
Miles/kilometers by jurisdiction
Unit number or vehicle identification number
Vehicle fleet number
Licensee’s name, and
May include additional information at the discretion of the base jurisdiction.
B. Fuel Records - P550.100, P550.200, P550.300, P550.400.005 - -.025, P560.100,
P560.200, P560.300.005 - -.035, P570.100, P570.200, P570.300, P570.400.005 - -.025,
P570.500, R1000.100, R1000.200, R1010, 100, R1010.200, R1010.300, R1020.100,
R1020.200, R1020.300
The licensee must maintain complete records of all motor fuel purchased, received, and
used in the conduct of its business.
Separate totals must be compiled for each motor fuel type,
Retail fuel purchases and bulk fuel purchases are to be accounted for separately.
The fuel records shall contain but not be limited to:
The date of each receipt of fuel
The name and address of the person from whom purchased or received
The number of gallons or liters received
The type of fuel, and
The vehicle or equipment into which the fuel was placed.
Retail purchases must be supported by receipt or invoice, credit card receipt, automated
vendor generated invoice or transaction listing or microfilm/microfiche of the receipt or
invoice. Receipts that have been altered or indicate erasures are not accepted for tax-
paid credits unless the licensee can demonstrate the receipt is valid.
BEST PRACTICES AUDIT GUIDE
Page 4 of 45 May 2006
Receipts for retail fuel purchases must identify the vehicle by the plate or unit number or
other licensee identifier, as distance traveled and fuel consumption may be reported only
for vehicles identified as part of the licensee’s operation. An acceptable receipt or
invoice must include, but shall not be limited to, the following:
Date of purchase
Seller’s name and address
Number of gallons or liters purchased
Fuel type
Price per gallon or liter or total amount of sale
Unit numbers, and
Purchaser’s name (see R1010.300 of the IFTA Articles of Agreement)
Bulk fuel is normally delivered into storage facilities maintained by the licensee, and fuel
tax may or may not be paid at the time of delivery. Original delivery tickets and/or
receipts must be retained by the licensee. Receipts that have been altered or indicate
erasures are not accepted for tax-paid credits unless the licensee can demonstrate the
receipt is valid. Bulk inventory reconciliations must be maintained. For withdrawals from
bulk storage, records must be maintained to distinguish fuel placed in qualified vehicles
from other uses. To obtain credit for withdrawals from licensee-owned, tax-paid bulk
storage, the following records must be maintained:
Date of withdrawal
Number of gallons or liters
Fuel type
Unit number, and
Purchase and inventory records to substantiate that tax was paid on all bulk
purchases.
Upon application by the licensee, the base jurisdiction may waive the requirement of unit
numbers for fuel withdrawn from the licensee’s own bulk storage and placed in its
qualified motor vehicles. The licensee must show that adequate records are maintained
to distinguish fuel placed in qualified vs. non-qualified motor vehicles for all member
jurisdictions.
To obtain credit for tax-paid purchases, the licensee must retain a receipt, invoice, credit
card receipt, or automated vendor generated invoice or transaction listing, showing
evidence of such purchases and taxes paid. These records may be kept on microfilm,
microfiche, or other computerized or condensed record storage system which meets the
BEST PRACTICES AUDIT GUIDE
Page 5 of 45 May 2006
legal requirement of the base jurisdiction. Licensees are not required to submit proof of
tax-paid purchases with their tax returns. Receipts that have been altered or indicate
erasures are not accepted for tax-paid credits unless the licensee can demonstrate that
the receipt is valid.
The retail purchase of fuel which is placed into the fuel tank of a qualified vehicle, and
upon which tax has been paid to a jurisdiction shall qualify as a tax-paid retail fuel
purchase. The receipt must show evidence that tax was paid directly to the applicable
jurisdiction or at the pump. Specific requirements for these receipts are outlined in the
IFTA Procedures Manual section P560. No member jurisdiction shall require evidence
of such purchases beyond what is specified in the Procedures Manual. In the case of a
lessee/lessor agreement, receipts for tax-paid purchases may be in the name of either
the lessee or the lessor provided a legal connection can be made to the reporting party.
Storage fuel is normally delivered into fuel storage facilities by the licensee and fuel tax
may or may not be paid at the time of delivery. Motor fuel which is placed into the fuel
tank of a qualified motor vehicle from a licensee’s own bulk storage, and upon which tax
has been paid to the jurisdiction where the bulk fuel storage tank is located, shall be
considered a tax-paid bulk fuel purchase. The licensee’s records must identify the
quantity of fuel taken from the licensee’s own bulk storage and placed in its qualified
motor vehicles. Record keeping requirements for tax-paid bulk fuel purchases are
provided in IFTA Procedures Manual, section P570.
C. Trip Permits - R315, R263, R650
In lieu of motor fuel tax licensing under this Agreement, persons may elect to satisfy
motor fuels use tax obligations on a trip-by-trip basis.
Temporary Permit: Means a permit issued by the base jurisdiction or its agent to be
carried in a qualified vehicle in lieu of display of the permanent annual decals. A
temporary permit is valid for a period of 30 days to give the carrier adequate time to affix
the annual permanent decals. The base jurisdiction may charge an administrative fee to
the licensee to cover the cost of issuance. Temporary permits must be vehicle specific
and show the expiration date. The temporary permit need not be displayed but shall be
carried in the vehicle.
D. Monthly / Quarterly Summaries - P540.100.015
Licensees shall maintain detailed distance records, which show operations on an
individual vehicle basis. The operational records shall contain, but not be limited to,
distance recaps for each vehicle for each jurisdiction in which the vehicle operated.
BEST PRACTICES AUDIT GUIDE
Page 6 of 45 May 2006
E. Supporting Information for IVDRs (Individual Vehicle Distance Records) - A540.-
.200
The information recorded on the IVDRs must be accurate and legible. The distance
figures to be entered on IVDRs can be obtained from various sources such as odometer
and/or hubodometer readings, DOT logs, provincial/state maps, a standard distance
guide or a household goods distance guide, a computer software or a global positioning
system (GPS) as long as the method used is accurate and consistent. The primary
concern is that the percentage of total distance allocated to affected jurisdictions is
accurate. Licensees should accumulate IVDRs and prepare monthly/quarterly recaps. -.
It must be stressed that distance figures supported by IVDRs can be used in numerous
areas where a licensee is required to file some type of distance report, such as IRP
registration applications, third structure taxes, -fuel usage, - etc.
A540.400 If the base jurisdiction utilizes a distance reporting software program to verify
the records of the licensee, it shall be used as an audit tool. The auditor must use
discretion when verifying the licensee’s records. Documentation such as trip records,
odometer readings and other records used by the licensee to substantiate its actual
distance records must be considered by the auditor in determining an acceptable
distance reporting system.
F. Lessor Responsibility - R230, R233, R510.100.005 - -.010, R510.200, R520.100,
R520.200, R530.100, R530.200, R540
Lessor - means the party granting the use of equipment, with or without a driver, to
another.
Lessee - means the party acquiring the use of equipment, with or without a driver, from
another.
Short-term leases. In the case of a short-term motor vehicle rental, by a lessor
regularly engaged in the business of leasing or renting motor vehicles without drivers, for
compensation, to licensees or other lessees of 29 days or less, the lessor will report and
pay the fuel use tax unless the following two conditions are met,
1. The lessor has a written rental contract which designates the lessee as the party
responsible for reporting and paying the fuel use tax; and
2. The lessor has a copy of the lessee’s IFTA fuel tax license which is valid for the term
of the rental.
Long-term leases. A lessor regularly engaged in the business of leasing or renting
motor vehicles without drivers, for compensation, to licensees or other lessees may be
BEST PRACTICES AUDIT GUIDE
Page 7 of 45 May 2006
deemed to be the licensee, and such lessor may be issued a license if an application
has been properly filed and approved by the base jurisdiction.
In the case of a household goods carrier using independent contractors, agents or
service representatives, under intermittent leases, the party liable for motor fuel use tax
shall be the:
1. Lessee (carrier) when the qualified motor vehicle is being operated under the
lessee’s jurisdictional operating authority. The base jurisdiction, for purposes of this
Agreement, shall be the base jurisdiction of the lessee (carrier) regardless of the
jurisdiction in which the qualified motor vehicle is registered, for vehicle registration
purposes, by the lessor or lessee.
2. The lessor (independent contractor, agent or service representative) when the
qualified motor vehicle is being operated under the lessor’s jurisdictional operating
authority. The base jurisdiction, for purposes of this agreement, shall be the base
jurisdiction of the lessor, regardless of the jurisdiction in which the qualified motor
vehicle is registered for vehicle registration purposes.
Independent Contractors:
Short-term leases: In the case of a carrier using independent contractors under short-
term leases of 29 days or less, the trip lessor will report and pay all fuel taxes.
Long-term leases: In the case of a carrier using independent contractors under long-
term leases (30 days or more) the lessor and lessee will be given the option of
designating which party will report and pay fuel use tax. In the absence of a written
agreement or contract, or if the document is silent regarding responsibility for reporting
and paying fuel use tax, the lessee will be responsible for reporting and paying fuel use
tax. If the lessee (carrier) through a written agreement or contract assumes
responsibility for reporting and paying fuel use taxes, the base jurisdiction, for purposes
of this Agreement, shall be the base jurisdiction of the lessee, regardless of the
jurisdiction in which the qualified motor vehicle is registered for vehicle registration
purposes by the lessor. No member jurisdiction shall require the filing of such leases but
such leases shall be made available upon request of any member (see IFTA Procedures
Manual section P520).
G. Program Compliance Reviews - P1210, P1230
Member jurisdictions shall permit periodic program compliance reviews to be performed
to assure they are in compliance with the provisions of the Agreement. At the expense
of the member jurisdictions conducting such reviews, they will be performed after the
BEST PRACTICES AUDIT GUIDE
Page 8 of 45 May 2006
first year of implementation of the Agreement. The expenses of such reviews may be
paid through the International Fuel Tax Association if funds are available. Beginning
January 1, 1997, the Program Compliance Reviews will be conducted according to a
schedule developed by IFTA, Inc. Jurisdictions will be required to participate in their
appropriate share of program compliance reviews each year. No member jurisdiction will
be required to participate in more than two compliance reviews per year.
H. Records Retention - P510.100, P510.200, P510.300, P550.100, P550.200, P550.300
The licensee is required to preserve the records upon which the quarterly tax return is
based for four years from the return due date or filing date, whichever is later, plus any
time period included as a result of waivers or jeopardy assessments. Failure to provide
records demanded for audit purposes extends the four year record retention requirement
until the records are provided. Records may be kept on microfilm, microfiche or other
computerized or condensed record storage system acceptable to the base jurisdiction.
The licensee must maintain complete records of all motor fuel purchased, received, and
used in the conduct of its business. Separate totals must be compiled for each motor
fuel type. Retail fuel purchases and bulk fuel purchases are to be accounted for
separately.
Records may be kept on microfilm, microfiche, or other computerized or condensed
records storage system which meets the requirements of the base jurisdiction.
IV. GENERAL ACCOUNTING AND AUDITING STANDARDS
A. Standards - A510, A210.100, A210.200, A210.300, A220.100, A220.200
For an audit to be acceptable to all member jurisdictions, it must be conducted in a
professional manner and the results be clearly documented. Standard terminology is to
be used in reporting audit findings. Acceptable audit standards provide that several
procedures may be employed. However, it is necessary that each audit reflect adequate
information necessary to satisfy the commissioners of the various member jurisdictions.
The examination is to be performed by a person or persons having adequate technical
training and proficiency in auditing. In all matters relating to the assignment, an
independent mental attitude is to be maintained by the auditor. The independent auditor
must be without bias with respect to the licensee under audit to ensure the impartiality
necessary for the dependability of the findings. However, this independence does not
imply the attitude of a prosecutor, but rather a judicial impartiality that recognizes an
obligation to fairness. Due professional care is to be exercised in performing the
examination and preparing the report. The auditor is to make a proper study and
BEST PRACTICES AUDIT GUIDE
Page 9 of 45 May 2006
evaluation of the licensee's internal accounting controls to determine their reliability and
the extent to which auditing procedures are to be restricted. The work is to be
adequately planned, and assistants, if any, are to be properly supervised.
B. Audit Responsibilities - A410.100, A410.200, A410.300, A410.400, A410.500,
A420.100, A420.200, A420.300, A420.400
Member jurisdictions are responsible for the staffing of auditors who meet the
qualifications of the jurisdiction's personnel guidelines. Member jurisdictions are
responsible for proper training of audit and audit supports staffs in audit planning and
procedures. Member jurisdictions are responsible for the actions of their auditors.
Member jurisdictions should allow auditors to discuss any discrepancies with licensees.
Member jurisdictions should allow auditors to make preliminary recommendations to
licensees. Auditors must give all licensees equal consideration. There must be no
preferential treatment given. Auditors should audit all licensees under a uniform
program unless special circumstances dictate otherwise. Auditors should conduct
themselves in a manner, which would promote cooperation and good relations between
the base jurisdiction and the licensee.
V. AUDIT PLAN
A. Audit selection and assignment - A310, A320.100, A320.200, A320.300
The base jurisdiction must complete audits of an average of 3% per year of the IFTA
accounts reported by that jurisdiction on the annual report from the previous year. This
count includes carriers who are registered and report no activity.
At least 15% of the audits shall involve low distance accounts, 25% shall involve high
distance accounts, while the remaining 60% will cover accounts of any size.
B. Audit Preparation
Any preparation that can be done prior to arriving at the licensee’s place of business
should be done. This will reduce the time needed to conduct the audit at the licensee’s
office.
1. Audit Package and Permanent Office File Review:
a. Past audits and areas of discrepancies.
b. IRP application and equipment list.
c. Consider sending out a pre-audit questionnaire.
d. Review IFTA application.
e. Review number of decals issued each year in the audit period.
BEST PRACTICES AUDIT GUIDE
Page 10 of 45 May 2006
f. Review reported returns for:
i. Constant or extreme MPG/KPL
ii. Large fluctuations in distance or fuel
iii. Size of operation
iv. Number of jurisdictions traveled
v. Non-IFTA distances
vi. Calculation errors
vii. Seasonal fluctuation
viii. Review billing and refunds
ix. Tax paid fuel
g. Other related information.
2. Audit Period Determination
The audit period will cover at least one registration year, and up to four registration
years.
3. Selection of Representative Sample Period for Testing Purposes - A530,
A530.100, A530.200, A530.300, A530.400
Unless a specific situation dictates, all audits will be conducted on a sampling basis.
Sample period(s) must be representative of the licensee’s operations. Sample
period(s) may be different for member jurisdictions due to seasonal operations. The
licensee should be allowed input into sample selection if legitimate reasons exist. An
agreement, that the sampling methodology is appropriate, should be signed by the
licensee and the auditor.
4. Audit Notification - A610.100, A610.200, A610.300, A620.100, A620.200
At least 30 days prior to conducting a routine audit, the licensee should be contacted
in writing and advised of the approximate date that an audit is to be conducted and
the time period the audit will cover. The notification will provide the licensee the
opportunity to make the required records available and provide assurance the
tentative schedule is acceptable. For purposes of documentation and to avoid
misunderstanding, a copy of the notification letter should be incorporated into the
audit file detailing the tentative audit date and the documentation the licensee is
required to furnish. For just cause, notification requirements may be waived. All pre-
audit contact should be confirmed in writing. Jurisdictions may contact each other
prior to the audit to obtain pertinent information. Copies of correspondence between
the licensee and member jurisdictions that have a bearing on a tax liability and
BEST PRACTICES AUDIT GUIDE
Page 11 of 45 May 2006
special instructions that may affect the audit should be forwarded to the base
jurisdiction.
VI. CONDUCTING THE AUDIT
A. Background
1. Understanding the Emphasis of the Audit - A520
The audit emphasis should be placed on the evaluation of the licensees’ distance
and fuel recording system to determine if the system can be relied upon.
Based on the study and evaluation of internal controls, along with other relevant
factors, the auditor needs to determine the nature and extent of procedures
necessary to test the system or controls.
The auditor can draw an unbiased sample of source documents of distance and fuel
records and follow them through the accounting system to check the reliability of the
recording system. The uses of a random, systematic, or haphazard selection
process are acceptable. Summary/recap records must be available to trace the
source documents for trips for a particular vehicle through the accounting system into
the proper reports. Summaries/recaps may be prepared on a monthly or, at
minimum, a quarterly basis.
If summaries/recaps are not available, the auditor may request that the licensee
compile such recaps, or choose to compile the information him/herself, depending on
the number of vehicles.
Once the degree of reliance on the accounting system is established and supported
by test results, the auditor can determine the extent of additional testing required.
Additional testing should verify that the data reported accurately reflect the data
recorded in the licensee's distance and fuel accounting system.
2. Pre-audit Conference - A630
The auditor should hold a pre-audit conference with the licensee. The purpose of
this meeting is to explain the audit and to gain an understanding of the licensee’s
distance and fuel reporting system, equipment registration system (including leased
vehicles, owner-operated vehicles, non-IFTA equipment), and internal control
structure. A Pre-Audit Questionnaire may be used at this time or prior to the
commencement of the pre-audit conference.
In addition, the pre-audit conference should outline the licensee’s operation, audit
procedures, records to be examined, sample period, sampling procedures, etc. The
BEST PRACTICES AUDIT GUIDE
Page 12 of 45 May 2006
licensee and auditor(s) should determine who has the responsibility for the final
acceptance of audit findings and who should be involved in the exit conference.
During the interviews, talk to the people involved with processing the information,
explain the audit process, and discuss the unique aspects of their business. During
all discussions, remember to think about the best and most efficient approach to
auditing the licensee's records. Consider management philosophy and control
methods, competence of personnel, other influences on the distance and fuel
reporting system, such as payroll, and your audit objectives.
Many licensees will not understand what is required of them during the audit
process. Take this opportunity to educate them.
Some factors to review when conducting the pre-audit conference are as follows:
a. Licensee’s Operations:
i. Determine what the licensee's business is.
ii. Determine the organizational structure of the company.
b. General Information:
i. Identify whom to talk to about obtaining records, discussing errors, attending
closing conferences.
ii. Determine what the working hours of the office are and the individuals' work
schedules.
c. Records: (A540, A550)
i. Determine if the requested records are available for audit. For record
keeping requirements, review Section III of this manual.
ii. Determine if the licensee has complete records for the periods under audit.
iii. Determine whether the records are maintained in a timely fashion. Determine
whether the information contained on the IVDR’s is sufficient to allow the
audit of reported distance and fuel.
iv. Review pertinent lease agreements to determine the licensee’s responsibility.
v. Discuss whether distance is reported by odometer readings (or other type
measure), by routes, or by standard distance chart (including maps). (If
odometer/hub odometer is not used, how is total distance accurately
determined?)
vi. Discuss whether fuel is reported based on fuel receipts, fuel invoices, bulk
fuel withdrawals, or some other process.
vii. Review how the records are kept; determine whether they are turned in after
BEST PRACTICES AUDIT GUIDE
Page 13 of 45 May 2006
each trip, weekly, or monthly.
viii. Determine how trips and/or trip sheets are numbered; i.e., pre-numbered,
numbered by the driver, same as shipment number, numbered upon
completion of trip.
ix. Determine how the licensee records and reports distance and fuel when a trip
overlaps months/quarters.
d. Internal Controls: (A640)
i. Make inquiries about the system by interviewing personnel involved with the
reporting process.
ii. Walk through the system - trace one or two IVDR’s through the process.
iii. Determine the extent of automation within the licensee’s system of record
keeping;
iv. Determine if the distance and fuel reporting system is a stand-alone system
or integrated with the company's financial or other systems.
v. Determine if a review or edit is performed of the IVDR’s and distance and fuel
compiled, including who does the review and whether the review is
documented.
vi. Determine if a review or edit is performed of the monthly or quarterly
summaries, including who does the review and whether the review or edit is
documented.
vii. If edits are performed, obtain a pre-edit version of the documentation.
viii. Determine if a third party (service agent, accountant, etc.) prepares the IFTA
tax return.
ix. Determine if there have been any changes in the record keeping or reporting
system during the audit period. (If there has been a change, you will want to
sample the system before and after the change.)
e. Gathering Information about the System:
i. Information about a licensee's record keeping system is obtained through
discussion with the personnel involved in order to find out each individual’s
role in the system and their knowledge. This is an important step and is
accomplished by exercising professional judgment in evaluating the
information obtained. The auditor has a responsibility to report any
weaknesses to the licensee.
ii. The auditor should identify the strengths and weaknesses of the licensee’s
BEST PRACTICES AUDIT GUIDE
Page 14 of 45 May 2006
system to determine the nature and extent of auditing procedures employed:
Strengths – A strength is a control or a procedure the auditor intends to
rely upon to reduce testing. For example, if the auditor believes that
controls for assigning distance and fuel among the jurisdictions are
adequate the auditor can reduce, not eliminate, the testing.
Weaknesses - A weakness in the system can be defined as the absence
of a control, which makes the auditor's expectations of error greater than
would normally be found in a system with adequate internal control.
iii. Internal control evaluation guides or questionnaires may be used as a
reminder to list points to be considered.
f. Walk-Through of the System:
i. The auditor should select one or more documents of each transaction type
and follow some action through the entire accounting process.
ii. As part of the walk-through, the auditor should ask to review each point
where some action is taken, such as a check of clerical accuracy, a review, or
an approval. Example; if an individual is to have initialed or signed the
document before passing it along to another department, the auditor may
ascertain that this was done by inquiring whether the initials or the signature
appearing on the documents is that of the employee being interviewed. The
auditor may observe how the current documents, flowing through the control
system, are being handled by the individual interviewed. The auditor may
also check on information received by asking each individual to describe the
work being done under the prescribed procedures.
The walk-through enables the auditor to obtain a better understanding of the
detailed operations.
g. Document the System:
i. Has the system been audited before?
ii. Documentation of the system can range from identifying source documents to
a narrative or flow chart.
Documentation of working papers is discussed in more detail later in this
chapter. Flow-charting could be used.
It is important during each of these steps, to consider all possible error types,
determine the controls, which should detect the errors, and decide if the
licensee’s procedures contain those controls.
BEST PRACTICES AUDIT GUIDE
Page 15 of 45 May 2006
It is at this point that the auditor must determine whether the system can be
audited, determine the scope of the audit, and establish specific audit
procedures.
iii. If the auditor has determined that the licensee’s record keeping system is
sufficient to enable good records to be maintained, the auditor must next
determine if the individual records are sufficient for audit.
One of the auditing standards of fieldwork is that sufficient competent
evidential matter is to be obtained to afford a reasonable basis to support the
accuracy of the report filed by the licensee.
3. Understanding of the Fleet and Lease Agreements - R510-R540
The auditor should have acquired a clear understanding of the licensee’s fleet(s)
during the opening conference.
The auditor needs to know the number of vehicles in a licensee’s fleet and if the
licensee has any lease agreements with owner-operators. The lease agreements
need to be examined.
Short-term leases. In the case of a short-term motor vehicle rental, by a lessor
regularly engaged in the business of leasing, or renting motor vehicles with or
without drivers, for compensation to licensees or other lessees of 29 days or less,
the lessor will report and pay the fuel use tax unless the following two conditions are
met:
a. The lessor has a written rental contract which designates the lessee as the party
responsible for reporting and paying the fuel use tax; and
b. The lessor has a copy of the lessee’s IFTA fuel tax license which is valid for the
term of the rental.
Long-term leases: A lessor regularly engaged in the business of leasing or renting
motor vehicles without drivers for compensation to licensees or other lessees may be
deemed to be the licensee, and such lessor may be issued a license if an application
has been properly filed and approved by the base jurisdiction.
In the case of a household goods carrier using independent contractors, agents, or
service representatives, under intermittent leases, the party liable for motor fuel use
tax shall be:
a. The lessee (carrier) when the qualified motor vehicle is being operated under the
lessees’ jurisdictional operating authority. The base jurisdiction for purposes of
this Agreement shall be the base jurisdiction of the lessee (carrier), regardless of
BEST PRACTICES AUDIT GUIDE
Page 16 of 45 May 2006
the jurisdiction in which the qualified motor vehicle is registered for vehicle
registration purposes by the lessor or lessee;
b. The lessor (independent contractor, agent or service representative) when the
qualified motor vehicle is being operated under the lessor’s jurisdictional
operating authority. The base jurisdiction for purposes of this Agreement shall be
the base jurisdiction of the lessor, regardless of the jurisdiction in which the
qualified motor vehicle is registered for vehicle registration purposes.
Short-term leases. In the case of a carrier using independent contractors under
short-term/trip leases of 29 days or less, the trip lessor will report and pay all fuel
taxes.
Long-term leases. In the case of a carrier using independent contractors under
long-term leases (30 days or more) the lessor and lessee will be given the option of
designating which party will report and pay fuel use tax. In the absence of a written
agreement or contract, or if the document is silent regarding responsibility for
reporting and paying fuel use tax, the lessee will be responsible for reporting and
paying fuel use tax. If the lessee (carrier) through a written agreement or contract
assumes responsibility for reporting and paying fuel use taxes, the base jurisdiction
for purposes of this Agreement shall be the base jurisdiction of the lessee,
regardless of the jurisdiction in which the qualified motor vehicle is registered for
vehicle registration purposes by the lessor.
No member jurisdiction shall require the filing of such leases but such leases shall be
made available upon request of any member (see IFTA Procedures Manual, Section
P520).
The auditor also needs to understand the methods used to arrive at the distance and
fuel recorded on IVDR’s, (i.e., odometers, map distance, a software package, fuel
invoices, fuel receipts, bulk fuel withdrawal records, etc.). The methods used by the
licensee will affect the test procedures.
B. Determining Quality of Source Documents
Most of the auditor's work in determining the accuracy of the IFTA quarterly report
consists of obtaining and evaluating distance, fuel, and equipment records.
1. Nature of Evidence
There are several types of records that may be used as evidence during the audit.
They consist of trip records, vehicle maintenance records, driver daily logs,
employee time cards or earning records, maintenance records, dispatch reports, bills
BEST PRACTICES AUDIT GUIDE
Page 17 of 45 May 2006
of lading, cash disbursement records, cash receipt records, leases, titles, and reports
filed with the jurisdictions, fuel receipts, fuel invoices, and bulk fuel withdrawal
records.
2. Verifying Equipment List
The auditor needs to determine that all qualified vehicles are included on the
equipment list.
The equipment list for fuel tax should also be examined as it may differ from the
equipment list for IRP. The auditor must be sure to compare both equipment lists
against the licensee's records carefully and completely.
3. Distance Recaps - P540
The auditor should request the licensee’s summaries to support the quarterly IFTA
tax report. This is a necessary starting point since it will help determine if the auditor
is working with the records that were used to prepare the report.
The auditor should verify enough summaries and recaps to determine if the quarterly
returns are being filed properly. The auditor must also verify that the total distances
and tax paid credit gallons have been properly allocated to the various jurisdictions.
If the testing of the summaries to the report is unsatisfactory, consider expanding the
sample. Any difference between the summaries and the IFTA tax return should be
considered an error.
For IFTA, a quarterly summary is required for each quarter in the audit period. The
summary must show the total and jurisdictional distance and fuel for the total fleet
and for each vehicle in the fleet.
4. Computerized Distance System - P610 - P670
If a licensee is using a computerized distance system, they still have to maintain
individual trip reports to support the route the vehicle actually traveled. A
computerized distance summary is not acceptable as the sole source document.
On board recording devices, vehicle tracking systems or other electronic data
recording systems may be used (at the option of the carrier) in lieu of or in addition to
handwritten trip reports for fuel tax reporting. Other equipment monitoring devices
that transmit data or may be interrogated as to vehicle location or travel may be used
to supplement or verify handwritten or electronically generated trip reports. Any
device or electronic system used in conjunction with a device shall meet the
requirements stated in this Section. On-board recording or vehicle tracking devices
BEST PRACTICES AUDIT GUIDE
Page 18 of 45 May 2006
may be used in conjunction with manual systems or in conjunction with computer
systems.
All recording devices must meet the requirements stated in IFTA Procedures
manual, Section P640 and P660.
When the device is to be used alone, printed reports must be produced which
replace handwritten trip reports. The printed trip reports shall be retained for audit.
Vehicle and fleet summaries which show miles and kilometers by jurisdiction must
then be prepared manually. The entire system must meet the requirements stated in
IFTA Procedures Manual, Sections P640, P650, and P660. If the printed reports will
not be retained for audit, the system must have the capability of producing, upon
request, the reports indicated in IFTA Procedures Manual, Section 640. When the
computer system is designed to produce printed trip reports, vehicle and fleet
summaries which show miles and kilometers by jurisdiction must also be prepared.
To obtain information needed to verify fleet distance and to prepare the “Individual
Vehicle Distance Report,” the device must collect the following data on each trip:
date of trip (starting and ending); trip origin and destination (location code is
acceptable); routes of travel or latitude/longitude positions used in lieu thereof (may
be waived by the base jurisdiction). If latitude/longitude positions are used, they
must be accompanied by the name of the nearest town, intersection or cross street.
If latitude/longitude positions are used, jurisdiction crossing points must be calculated
or identified; beginning and ending odometer or hubodometer reading of the trip
(may be waived by the base jurisdiction); total trip distance; distance by jurisdiction;
power unit number or vehicle identification number; vehicle fleet number and
licensee’s name. Optional trip data (may be included at the discretion of the base
jurisdiction) driver ID or name and intermediate trip stops. For purposes of fuel tax
reporting, the device must collect the following data: date of purchase; seller’s name
and address (vendor code acceptable); number of gallons or liters purchased; fuel
type ( may be referenced from vehicle file); price per gallon or liter or total amount of
sale (required only for purchases from vendors); unit number and purchaser’s name
(in the case of lessee/lessor agreement, receipts will be accepted in either name,
provided a legal connection can be made to reporting party).
For purposes of bulk fuel tax, the device must collect, in addition, the following data:
date of withdrawal; number of gallons or liters; fuel type; unit number and purchase
and inventory records to substantiate that tax was paid on all bulk purchases.
BEST PRACTICES AUDIT GUIDE
Page 19 of 45 May 2006
The following reports may be prepared by an electronic computer system –that
accepts data from on-board recording or vehicle tracking devices rather than the
recording device itself. The system shall be able to produce the following reports: an
Individual Vehicle Distance Record (IVDR) report for each trip that includes the
information required in IFTA Procedures Manual, Section P640. (Note: this report
may be more than one page); monthly, quarterly and annual summaries of vehicle
trips by vehicle number showing miles or kilometers by jurisdiction; monthly,
quarterly and annual trip summaries by fleet showing the number of miles or
kilometers by jurisdictions.
Exceptions that identify all edited data, omissions of required data (see IFTA
Procedures Manual, Section P640), system failures, non-continuous life-to-date
odometer readings, travel to noncontiguous jurisdictions and trips where the location
of the beginning trip is not the location of the previous trip must be identified.
In cases where speed/rpm sensors or odometer/speedometer interface devices are
providing pulse inputs to the on-board computer, the system will record the
calibration factors used in calculating mileage at time of download from the vehicle to
the base computer. The fleet shall also keep accurate records of all Engine Control
Module calibrations.
The carrier must obtain a certificate from the manufacturer certifying that the design
of the on-board recording or vehicle tracking device has been sufficiently tested to
meet the requirements of this provision. The on-board recording or vehicle tracking
device and associated support systems must be, to the maximum extent practicable,
tamper-proof and must not permit altering of the information collected. Editing the
original information collected will be permitted. All editing must be identified and both
the edited and original data must be recorded and retained
The on-board recording or vehicle tracking device shall warn the driver visually
and/or audibly that the device has ceased to function. The device must time and
date stamp all data recorded. The device must not allow data to be overwritten
before the data has been extracted. The device shall warn the driver visually and/or
audibly that the device’s memory is full and can no longer record data. The device
must automatically update a life-to-date odometer when the vehicle is placed in
motion or the operator must enter the current vehicle odometer reading when the on-
board recording or vehicle tracking device is connected to the vehicle. The device
must provide a method for the driver to confirm that the entered data is correct (e.g.
BEST PRACTICES AUDIT GUIDE
Page 20 of 45 May 2006
a visual display of the entered data that can be reviewed and edited by the driver
before the data is finally stored).
It is the carrier’s responsibility to recalibrate the on-board recording device on
mechanical or electronic installations when the tire size changes, the vehicle drive-
train is modified or any modifications are made to the vehicle which affect the
accuracy of the on-board recording device. The device must be maintained and
recalibrated in accordance with the manufacturer’s specifications. A record of
recalibrations must be retained for the audit retention period. It is the carrier’s
responsibility to maintain a second copy (back-up copy of the electronic files either
electronically or in paper form) for the audit retention period. At the data transfer. It
is the carrier’s responsibility to assure its drivers are trained in the use of the
computer system. Drivers shall be required to note any failures of the on-board
recording or vehicle tracking device and to prepare manual trip reports of all
subsequent trip information until the device is again operational. It is the carrier’s
responsibility to assure the entire record-keeping system meets the requirements of
IFTA. It is suggested that the carrier contact the base jurisdiction IFTA Audit Section
for verification of audit compliance prior to implementation.
5. Fuel records:
The retail purchase of fuel which is placed into the fuel tank of a qualified motor
vehicle, and upon which tax has been paid to a jurisdiction, shall qualify as a tax-paid
retail fuel purchase. The receipt must show evidence of tax paid directly to the
applicable jurisdiction or at the pump. Specific requirements for those receipts are
outlined in the IFTA Procedures Manual, Section P560. No member jurisdiction shall
require evidence of such purchases beyond what is specified in the Procedures
Manual. In the case of a lessee/lessor agreement, receipts for tax-paid purchases
may be in the name of either the lessee or the lessor provided a legal connection can
be made to the reporting party. Retail purchases must be supported by a receipt or
invoice, credit card receipt, automated vendor generated invoice or transaction
listing, or microfilm/microfiche of the receipt or invoice. Receipts that have been
altered or indicate erasures are not accepted for tax-paid credits unless the licensee
can demonstrate the receipt is valid. Receipts for retail fuel purchases must identify
the vehicle by plate or unit number or other licensee identifier, as distance traveled
and fuel consumption may be reported only for vehicles identified as part of the
licensee’s operation. An acceptable invoice or receipt must include, but shall not be
BEST PRACTICES AUDIT GUIDE
Page 21 of 45 May 2006
limited to, the following: date of purchase; seller’s name and address; number of
gallons or liters purchased; fuel type; price per gallon or liter or total amount of sale;
unit numbers; and purchaser’s name (see R1010.300 of the IFTA Articles of
Agreement)
Bulk fuel is normally delivered into fuel storage facilities by the licensee and fuel tax
may or may not be paid at the time of delivery. Motor fuel which is placed into the
fuel tank of a qualified motor vehicle from a licensee’s own bulk storage, and upon
which tax has been paid to the jurisdiction where the bulk fuel storage tank is
located, shall be considered a tax-paid bulk fuel purchase. The licensee’s records
must identify the quantity of fuel taken from the licensee’s own bulk storage and
placed in its qualified motor vehicles. Record-keeping requirements for tax paid bulk
fuel purchases are provided in IFTA Procedures Manual, Section P570.
Original delivery tickets and/or receipts must be retained by the licensee. Receipts
that have been altered or indicate erasures are not accepted for tax-paid credits
unless the licensee can demonstrate the receipt is valid. Bulk fuel inventory
reconciliations must be maintained. For withdrawals from bulk storage, records must
be maintained to distinguish fuel placed in qualified motor vehicles from other uses.
To obtain credit for withdrawals from licensee-owned, tax paid bulk storage, the
following records must be maintained: date of withdrawal; number of gallons or liters;
fuel type; unit number; and purchase and inventory records to substantiate that tax
was paid on all bulk purchases. Upon application by the licensee, the base
jurisdiction may waive the requirement of unit numbers for fuel withdrawn from the
licensee’s own bulk storage and placed in its qualified motor vehicles. The licensee
must show that adequate records are maintained to distinguish fuel placed in
qualified vs. non-qualified motor vehicles for all member jurisdictions.
6. Inadequate Records – A550, R1210-R1230, R1270
If the licensee’s records are lacking or inadequate to support any report filed by the
licensee or to determine the licensee’s tax liability, the base jurisdiction shall have
authority to estimate the fuel use upon (but is not limited to) factors such as the
following:
a. Prior experience with the licensee.
b. Licensees with similar operations.
c. Industry averages.
d. Records available from fuel distributors.
BEST PRACTICES AUDIT GUIDE
Page 22 of 45 May 2006
e. Other pertinent information the auditor may obtain or examine.
Unless the auditor finds substantial evidence to the contrary by reviewing the above,
in the absence of adequate records, a standard of 4.00 MPG/1.7KPL will be used.
When tax paid fuel documentation is unavailable, all claims for tax paid fuel will be
disallowed.
C. Sampling – A530
It is not always necessary to conduct an audit of all of the records maintained for the
licensee’s vehicles. The vehicles to be audited can be chosen by using a sampling
method. Representative samples must be selected from the population. Sampling
introduces an element of risk into auditing. The auditor continually decides how
extensive the procedures must be to avoid excessive risk. The auditor considers the
effectiveness of systems of internal control, the number and size of items to be tested,
and the probabilities that groups of items, numbers of vehicles, total distances, distance
allocation, total fuel, or tax paid credit gallons will be misstated in significant amount. As
with materiality, judgment plays an important role in determining the acceptable risk.
Non-statistical sampling is the standard approach used by IFTA auditors. The auditor
determines a sample size and evaluates the results of the sample based on the sound
reasoning and judgment of the auditor. This differs from statistical sampling in that
sampling risk is not measured.
Regardless of what sampling methodology used, the auditor should discuss the
proposed sample with the licensee in accordance with IFTA A530.
1. Types of Sampling:
There are several approaches for non-statistical sampling, including haphazard,
random, systematic, judgmental, and block.
a. Haphazard sampling - Items have been selected without regard to size, source,
or other attributes. This is an attempt by the auditor to select a sample without
bias. For IFTA auditors, this is the most common method used to select units for
testing.
b. Random sampling - Each unit in the population has an equal chance of being
selected, without bias. This can be accomplished by using a random number
table or a computer program, which generates random numbers. It is likely that
the licensee's vehicle numbering system will be unique for internal purposes and
not consistent with random number tables or computer software. Therefore, it
may be necessary to number the vehicles starting with 1, in order to use a table
BEST PRACTICES AUDIT GUIDE
Page 23 of 45 May 2006
or computer to generate the sample.
c. Systematic sampling - Auditor selects every "nth" item. When an auditor is in
the field, systematic selection is a convenient method of selecting a sample, as
long as the population is in random order.
d. Judgmental sampling - The sample is selected based on the sound reasoning
and judgment of the auditor. For IFTA auditors, this method is common when
there are unusual relationships, and the auditor feels errors could exist in a
specific area.
e. Block sampling - Items are selected in a sequence. For IFTA auditors, this is
the most common method used. The sequence is usually three consecutive
months within a quarter.
2. Sample Size:
IFTA does not have any quantitative guidelines established when selecting the
number of vehicles for the sample size. The size of the sample will depend upon the
results of the auditor's preliminary review of the factors such as:
a. The internal control of the licensee's overall accounting system.
b. The internal control of the licensee's reporting system.
c. Flow of paperwork within the licensee's system.
d. System of calculating distances.
e. System of calculating total fuel consumption.
f. System of reporting tax paid credit gallons.
g. Record retention system.
h. Consistency of reporting systems.
- (R1310): The base jurisdiction shall audit its licensees on behalf of all member
jurisdictions. The auditor should make every effort to choose a sample period in
which all jurisdictions through which the licensee traveled is represented.
When selecting the different vehicles from the months selected for audit, try to get a
cross-section (i.e. a representative sample). If you are confident that the sample is
valid, do not be concerned if the sample does not represent distances in all IFTA
jurisdictions. You may request distance information for a specific unit and time
period to review to at least validate that distance not represented within the sample is
correct.
BEST PRACTICES AUDIT GUIDE
Page 24 of 45 May 2006
3. Sampling Source Documents - A520
It is suggested, but not required, that fleet miles/kilometers be verified to source
documentation for at least three representative quarters. To determine if the
licensees distance accounting system properly accumulates all distance generated
by units identified to the licensee’s operation, not less than three representative
months should be selected for audit with respect to computations of jurisdiction
distance via routes traveled and to assure that all miles/kilometers are reported into
the system.
The most effective method of tracing distance from IVDRs to the summaries is
through a method of sequential audit. Using this method, the auditor tracks the
beginning trip sheet odometer’s readings and/or location to the ending of the period
trip sheet. This catches the most common error, failure to include deadhead or inter-
jurisdiction distances. For example, deadhead distances might not be properly
accounted for if the end of the prior trip is Tucson and the next trip starts in Phoenix.
A540.400. If the base jurisdiction uses a distance reporting software program to
verify the records of the licensee, it shall be used as an audit tool. The auditor must
use discretion when verifying the licensee’s records. Documentation such as trip
records, odometer readings, and other records used by the licensee to substantiate
its actual distance records must be considered by the auditor in determining an
acceptable distance reporting system.
4. Accountable Distances - P710
The IFTA tax return shall cover the previous calendar quarter and shall include the
following information: total distance traveled during the reporting period by qualified
motor vehicles in the licensee’s fleet, regardless of whether the miles or kilometers
are taxable or non-taxable by a jurisdiction.
5. Practical Aspects of Sampling
In conducting the sampling program, the auditor should also consider the following
practical aspects:
a. If you selected 15 vehicles for testing and have tested eight vehicles and found
no errors, consider discontinuing testing - what is the risk of error?
b. If you select a sample and find errors, consider whether the errors are isolated or
reoccurring. A recurring error should be projected over the audit period.
c. If there is a situation where isolated errors are occurring, discontinue sampling
and audit in detail for the isolated errors. Do not include isolated errors in the
BEST PRACTICES AUDIT GUIDE
Page 25 of 45 May 2006
sample projection.
d. If you selected a sample and found errors, consider whether the error factor is
reasonable. Sit down with the licensee and discuss the problems. Try to get
acceptance from the licensee that they will accept the projection of the sample
error factor over the entire population. It is not always necessary to expand your
sample.
6. Some Pointers Regarding Sampling
a. Sample periods should be chosen in such a manner as to prevent biased results.
b. Sample period may be adjusted to accommodate the licensee’s reporting
system(s) or record retention design(s) as long as the results remain
representative, valid, and reliable.
c. A sample size is acceptable, providing the auditor documents the procedure
used to secure the items in the sample. (size recommendations in table “j”)
d. The auditor is to consider the effects of multiple weight classes as well as long
haul vs. local in regard to the design and selection of the sample period or
sample items.
e. The auditor is to consider the effects of multiple operating divisions and/or fleets,
which may have different vehicle types and reporting systems, in regard to the
design and selection of the sample period or sample items.
f. Sampling periods may be changed, modified, and deleted at the auditor's
discretion based upon documentation and the licensee’s environment (internal
control, distance reporting system, and record retention).
g. The licensee may request the sample period be changed because of some
extraordinary event (fact). This request may be allowed, but the auditor would
have to audit the "exception period" as well as the new period. An error in the
exception period may be isolated to that period. If the exception period could not
be audited, the auditor should provide an explanation and possibly isolate the
effect of unacceptable record keeping.
h. Any sampling procedure that deviates from the examination of all items in a
sample period must be documented as to the reason for the deviation and for the
new sampling procedure.
i. The auditor should use solid professional judgment and common sense in
applying sample period results in the audit situation.
BEST PRACTICES AUDIT GUIDE
Page 26 of 45 May 2006
j. General idea of the sample size to be chosen:
Fleet Size Sample Size
1,000 + units 30 +
1,000 units 20-30
500 units 15-20
100 units 10-15
50 units 6-8
10 units 2-3
When selecting the sample size, the auditor should consider the effectiveness of
systems of internal control, the number and size of items to be tested, number of
vehicles, total distances, etc. Auditor’s judgment plays an important role in
determining the risk accepted.
7. Evaluating Sampling Results
After the audit procedures have been performed for the sample periods, the auditor
must evaluate the results to determine whether the findings should be projected over
the audit period (recurring errors).
Below is a list of several commonly occurring errors to look for during the audit
process.
a. Incorrect time period (distance year) reported
b. Total distance reported does not match odometer readings
c. Failure to record deadhead or bobtail distances
d. Failure to record base jurisdiction distances
e. Failure to operate interjurisdictionally
f. Clerical errors in distance calculations/reporting
g. Errors in transcribing distance/fuel from IVDR to recap, including:
General transcription errors
Picking up route number rather than distance
IVDR distance not included on recap
Some IVDR's missing
Page of driver's notebook missing
IVDR does not break out distance by jurisdiction
Vehicle eliminated from fleet and not reflected in distance figures
BEST PRACTICES AUDIT GUIDE
Page 27 of 45 May 2006
All log sheets not available at end of month and person in office estimates
distance for remaining timeframe
Pick up 250 miles for trip as South Carolina when should be 160 in North
Carolina and 90 in South Carolina
Pick up wrong jurisdiction from IVDR - especially similar names, such as New
York and New Jersey
Odometer gaps - beginning odometer reading does not agree with prior
ending odometer reading
Increasing all distance by a percentage to make sure enough distance is
reported
Origin, destination and, possibly, fuel stops are identified and the route is run
via software without log consideration.
Trip locations are identified via technology but route is adjusted by a quality
control editor.
IRP distance does not match IFTA distance.
Fuel purchase allocated to the wrong jurisdiction.
Fuel units reported in dollars rather than gallons/liters.
Non-taxed fuel reported as tax paid.
Analyzing and isolating errors will help the auditor focus on possible problems.
There are two major reasons for the analysis:
8. Projecting Errors
When the auditor uncovers errors during the audit, there are several courses of
action that can be taken.
a. Isolate the reason for the error and, using the facts and circumstances of that
particular situation, estimate the error. For example, if the reason for the error is
that base jurisdiction distance is not reported, determine the interjurisdictional
distance per day, week, or trip. Then, determine the applicable number of days,
weeks, or trips and multiply to arrive at the total error.
b. If the sample results can be representative of the population, project the error
based on sample results. For instance, if distance for one vehicle is omitted from
the application and it runs a similar route throughout the year, use your three-
month sample, and project the results to each quarter in the audit period.
c. If the sample is not representative of the population, expand the sample size to
an extent that is representative of the population up to 100%. However, if
BEST PRACTICES AUDIT GUIDE
Page 28 of 45 May 2006
relatively minor errors or isolated errors are noted, it might not be necessary to
expand sample.
d. If an isolated non-recurring error is noted, do not project sample results, but use
the actual error amount.
e. If the type of error that is occurring cannot be determined, expand the audit in the
particular area. The auditor can then determine the total error or better project
the error based on facts and circumstances. For instance, if the error is an end-
of-month cut-off, expand the audit to cover the end-of-month cut-off problem.
f. Use the sample error to project the error in the population.
g. If errors are minor, consider them immaterial.
h. If a type of error can reoccur due to a lack of internal control, but that type of
error can occur in non-sampled vehicles in other jurisdictions or at other
distances, the zeroing out of refunds should be considered.*
When the auditor uses sampling as an audit tool, and if any errors are projected to
the population, the projection may result in significant distance discrepancies and tax
recalculation. If a member jurisdiction disagrees with the audit, it may request
additional information, including the working papers, to determine whether the base
jurisdiction audit is sufficient to support the refund/assessment request.
If determined through audit that the system does not have the checks and balances
to support compliance, positive variances could be posted, but negative variances
could be zeroed. *
* IFTA does not have specific provisions for or against this type of adjustment. The
theory that an audit should make the licensee whole should only be applicable when
acceptable documentation is maintained. In cases where internal controls are
lacking or source documents do not give sufficient indication of the movement of the
vehicles or auditor creation of distances is necessary, rewarding the licensee with a
refund from any jurisdiction should be discouraged.
D. Distance / Fuel Verification
1. Testing the Distance / Fuel Recorded on Licensee's System
Examine the selected IVDRs to determine if:
a. They contain all basic information required.
b. Trip distance recorded is reasonably accurate and properly allocated among all
jurisdictions. A distance program can be used as a tool to determine the
accuracy of the reported distance.
BEST PRACTICES AUDIT GUIDE
Page 29 of 45 May 2006
c. Vehicle movement is continuous (odometer readings are sequential, preceding
trip destination is same as next trip's origin).
d. No unusual time lapses exist between recorded trips.
e. They contain fuel purchase information.
f. Fuel receipts are attached.
g. Fuel receipts contain all of the required information.
h. Bulk fuel withdrawals are documented.
i. Fuel receipts/invoices are compiled in some other system.
As the auditor reviews licensee distance and fuel records, situations will be
encountered where audited figures differ from those reported. These differences
need to be discussed with the licensee to determine why the difference occurred.
2. Accuracy of the Distance and Fuel Information on the IVDR's
The distance and fuel on an IVDR (which should include routes of travel) must be
verified by the auditor. There are several ways to verify these distances.
a. Odometer or hub odometer.
b. Sources of distance information:
i. Official jurisdiction highway map.
ii. Household goods carriers' distance record book.
iii. Automated distance software systems.
iv. Commercial road atlas.
The fuel purchases and tax paid credit gallons on an IVDR, or monthly fuel summary,
must be verified by the auditor. To verify fuel purchases and tax paid credit gallons:
a. Review original fuel receipts
b. Review original vendor invoices (These should list vehicle specific fuel
purchases)
c. Review Bulk fuel withdrawal records and reconciliations
3. Relevance and Frequency of Differences in IVDR Distances / Fuel
One of the main functions of the audit will be to determine the relevance and
frequency (isolated or recurring) of the differences found in the IVDR distances/fuel,
and to decide if the application of changes to a licensee's system as a whole is
warranted.
Factors that may cause differences between reported and audited distance and fuel
that should be reviewed during the audit, might include:
a. Failure to include all deadhead and interjurisdictional distances:
BEST PRACTICES AUDIT GUIDE
Page 30 of 45 May 2006
i. Beginning odometer reading does not agree with previous trip ending
reading.
ii. Different locations for one trip's end point and the next trip's beginning.
b. Missing IVDR's:
i. Unexplained period of time or distances;
ii. Valid IVDR not entered in monthly recaps.
c. IVDR does not include all necessary information:
i. Distance by jurisdiction not broken out;
ii. In-city delivery/local area distance not noted.
d. Inaccurate distance data on the IVDRs:
i. Broken or miss-calibrated odometers.
ii. Distances according to recorded routes do not match map distances
iii. The licensee and auditor may be using different automated distance systems.
iv. Obviously estimated or rounded distances.
e. Inaccurate fuel information:
i. Missing fuel receipts.
ii. Fuel receipts allocated to the wrong jurisdiction.
iii. Fuel receipts discovered for purchases in jurisdictions with no reported
distance.
iv. No bulk fuel withdrawal records or reconciliation.
v. Non-IFTA vehicles fueled from bulk fuel storage.
vi. No fuel purchases documented for a vehicle that has reported distance
traveled.
vii. Review resulting MPG/KLM for each vehicle to make sure they are
reasonable. Extremely high or low MPG/KLM may indicate errors in reporting
fuel.
When the audited distance for an individual jurisdiction is different from the
jurisdiction's distance recorded on the IVDR, the auditor needs to consider whether
the licensee dropped or picked up any loads within the jurisdiction or if travel was
straight through a jurisdiction. It may not be possible to determine this from the
IVDR. If a licensee traveled across a jurisdiction and made no stops, the distance
recorded for that jurisdiction should be at least the minimum map distance for the
particular route taken.
If the test results in numerous errors and irregularities, the auditor might consider
BEST PRACTICES AUDIT GUIDE
Page 31 of 45 May 2006
expanding the sample or testing a second sample, if there is doubt about the sample
being representative of the population.
If the test does not reveal any material differences, and the sample was
representative of the population, the auditor can place reliance on the licensee's
distance and fuel recorded on the IVDRs.
4. Tracing IVDRs to the Recaps
It is required that the auditor trace back from the licensee's monthly and quarterly
recaps to a sample of the IVDRs for a minimum of three representative months. If
the test reveals any major discrepancies, a more thorough or, possibly, a complete
audit of the licensee's distance and fuel records for the entire audit period.
5. Testing the Accuracy of the Licensee's Recaps / Schedules
The auditor should add the monthly recaps, comparing totals with the reported
figures on the quarterly IFTA tax return. This will give the auditor an idea that these
were the records used to prepare the IFTA tax return. If the totals do not agree, the
auditor should determine where the differences occurred, and whether this was an
isolated or recurring error.
6. Relevance and Frequency of Recap Differences
One of the main functions of the audit will be to determine the relevance and
frequency (isolated or recurring) of the differences, and to decide if the application of
changes to a licensee's system as a whole is warranted.
Factors that could cause differences between licensee and auditor distance and fuel
summaries/recaps, which should be reviewed during the audit, might include:
a. Information not properly transcribed from IVDR’s to recaps.
b. Clerical or transposition errors.
c. Distance and/or fuel given to jurisdiction with similar abbreviation.
d. Non -IFTA units included.
e. Estimated distance reported.
f. Fuel purchase units reported in dollars rather than gallons.
g. Tax free fuel reported as tax paid fuel.
If the test results in numerous errors and irregularities, the auditor might consider
expanding the sample or testing a second sample if there is doubt about the sample
being representative of the population. If the test does not reveal any material
differences and the sample was representative of the population, the auditor can
place reliance on the licensee's recapped distance/fuel.
BEST PRACTICES AUDIT GUIDE
Page 32 of 45 May 2006
7. Odometer Readings:
If a licensee uses odometer readings as the source for determining distance, and the
accuracy of the licensee's IVDRs has been tested, the auditor may want to obtain
beginning and ending odometer readings for the entire fleet. Care should be taken
when relying on odometer readings. Odometers can be inaccurate.
Total fleet distance can be calculated from the odometer readings and compared to
the total distance used in the IFTA distance calculation.
8. Distance and Fuel adjustments:
On the surface, distance and fuel adjustments appear to be easy to determine.
However, in companies that do not use traditional IVDRs in their distance and fuel
reporting system, verifying the reported distance and fuel, let alone calculating the
adjustment, can be difficult.
After the tests are completed, the errors should be analyzed before computing the
distance and fuel adjustment factor. When making a projection, the auditor must
determine the best method to apply the adjustment factor from the sample to the
entire population. Analyzing the errors provides the means of making such a
projection, which might be more than a mere mathematical procedure.
When applying an audit adjustment factor, the auditor must properly account for
exceptions in the adjustment. The following are examples of exceptions:
a. A unit with poor reporting results stopped running during the audit’s reporting
period. Break the sample into two parts and look at the effect of both:
Include unit in period
Exclude unit from period
b. Unusual clerical error - do not include in the error adjustment factor but correct as
a separate stand-alone adjustment.
c. If an error was found and is corrected in a subsequent period by a licensee, this
would have an effect on the periods in which the error adjustment factor would be
applied.
d. If the reason for an error is known and the error can be easily calculated, the
sample should not be used for error projection purposes. For instance, if the
licensee missed local distance and the distance can be calculated, a separate
error rate/adjustment is needed.
e. While auditing IVDRs, if the audited distance and fuel is different than the
distance and fuel recorded by the licensee, the auditor should discuss the
BEST PRACTICES AUDIT GUIDE
Page 33 of 45 May 2006
difference with the licensee. The licensee may have an explanation. When
these differences are discovered, the auditor should consider the nature of the
differences if the licensee dropped or picked up any loads, if fuel was purchased,
or if the travel was straight through a jurisdiction. The auditor may not be able to
determine this from the IVDR.
If a licensee traveled across a jurisdiction and made no stops, the distance
recorded for that jurisdiction should be at least the minimum audit distance for
the particular route.
f. When the licensee reports distance and fuel in excess of the minimum for a trip,
the auditor will accept this distance and fuel as reported unless the distance
and fuel reported is completely out of line with the trip route.
Distance overstatements are accepted because only the driver really knows
which route or side route was taken, or when and where fuel was purchased.
The exception given for the standard distance system is based on the fact that
the primary error of such a system is that the distance table may be wrong.
However, be careful - the truck may have operated out of route and the system
has correctly reported that trip.
g. Omitted distances or trips are picked up in an audit. The auditor should check
the adjoining period's activity to ensure that the trip has not been reported in
another period.
Complications may result from poor internal control, insufficient records or
sample sizes, or licensee complexities, such as record keeping systems, lease
vehicles, and different fleets in different locations. Certain complications can be
resolved by treating the sampled period as an "exception period," which means
treating those findings separately from the balance of periods.
9. Isolated Errors
Certain errors in distance/fuel can be treated as isolated errors, which mean
correcting those findings separate from the error factor calculation. Isolated/non
recurring errors should not be projected and should be corrected outside of the error
factor calculation.
10. Sampling vs. Full Audit of Records
If sampling procedures satisfy the auditor that distance and fuel has been properly
reported, the schedule of distance and fuel may be prepared. If the testing reveals
major discrepancies, a more thorough examination will be necessary. This could
BEST PRACTICES AUDIT GUIDE
Page 34 of 45 May 2006
include a complete audit of the licensee's distance and fuel records for the entire
audit period.
The auditor must be satisfied that the licensee has not incurred significant
unreported distance and fuel through failure to comply with laws and regulations.
The most important thing for the auditor to remember when conducting an
audit of the IVDRs is that the IFTA audit is being conducted on behalf of all
member jurisdictions. A licensee may have reported all the distance operated
and fuel purchased, but the auditor must be sure that the distance and tax paid
credit gallons are distributed to the jurisdictions properly.
11. Determining Audited Distance and Fuel
After auditing the IVDRs for the sample period and determining if the reported trip
distances and fuel purchases are correct, the auditor now totals the audited and
reported distance and fuel for each jurisdiction for the sample period.
Review the example below for an error factor calculation:
Unit 101 Reported Audited Factor
AZ 345 370 1.072
NV 400 300 0.75
UT 285 400 1.404
CO 300 345 1.15
NE 80 80 0
SC 150 175 1.167
In this example only one unit is shown. In an audit, all audited units would be
included to calculate an error factor for each jurisdiction based on the sampled units.
In reviewing the error factor, the auditor should determine if there are any errors that
should not be included in error factor calculation. For example, assume that in the
audit above the only distance for the jurisdiction of Utah was the distance generated
by Unit 101 with an error factor of 1.404%. The auditor needs to review that trip and
determine if it is an isolated error, something that only happened once or maybe a
recording error by the driver. An auditor must exercise due care in reviewing error
factor calculations and not just apply a 1.404% error factor to all reported distance for
the jurisdiction of Utah.
Once an error factor is determined, the error factor is applied per jurisdiction, per
month/quarter to recap/summary distance and fuel to calculate audited distance and
BEST PRACTICES AUDIT GUIDE
Page 35 of 45 May 2006
fuel to report on the quarterly IFTA tax return.
Error factors should not be determined based on reported distance and fuel unless
the auditor is sure that the reported distance and fuel is correct. Error factors are
normally determined from recap distance and fuel after recap distance and fuel has
been verified.
E. Equipment Verification
1. Verify the entire equipment list against the licensee's recaps to determine if they
contain the same vehicles. This step is vital to conducting the audit, as it is the
foundation for testing distance figures.
2. Verify the unit number, vehicle owner's name, and date added/deleted to the fleet,
vehicle identification number, registration number, year and make of the vehicle.
F. Audit Results
This section will deal with a variety of issues during the audit finalization steps. Some of
the issues will include:
A method of projecting findings from a sample over a full audit period.
The types of discrepancies that might warrant adjustments.
Handling of incomplete or inadequate licensee records.
Steps in concluding the field work, closing out the audit, and documenting audit
results.
1. Determining Results
An audit can result in no changes, changes resulting in assessments/credits, or a
notification that an audit could not be conducted (inadequate records) but an
assessment was prepared based on estimates.
a. "No Change" Audit
A “no change” audit means that the audit findings did not materially indicate a
difference in distance or tax paid credit in any jurisdiction or in total distance or
fuel when compared to the distance and fuel reported on the licensee’s quarterly
IFTA tax return.
b. Change Audit
There are several types of problems that can be uncovered during the audit,
which would result in an assessment to the licensee, including:
i. Missing records on various units
ii. Incorrect distance and/or fuel reporting
iii. Missing Records
BEST PRACTICES AUDIT GUIDE
Page 36 of 45 May 2006
It is the responsibility of the licensee to maintain accurate records. There will
be situations when vehicle records are completely missing or missing
between trips (gaps). The auditor must make adjustments for these
situations.
Recalculate total distance and jurisdiction distance percentages, total fuel
consumed and jurisdictional tax paid credit percentages.
In the event that an auditor is unable to determine any reasonable method to
assign or allocate unreported distance or fuel, such distance or fuel should be
assigned to all jurisdictions on the basis of each jurisdiction’s audited
percentage of the total distance and tax paid gallons (A520). Due care
should be taken when allocating unaccounted distance.
iv. Incorrect Distance and fuel Reporting
There will be cases when the licensee has misreported distance and/or fuel,
either through omission or clerical errors. In either case, the distance and
fuel should be adjusted, new percentages calculated, and new tax liability
determined for each affected jurisdiction.
In any audits resulting in changes, R1220 provides for the assessment of
penalties and interest as follows:
Penalty: R1220
The base jurisdiction may assess the licensee a penalty of $50.00 or 10% of the tax
liability, whichever is greater, for failing to file a return, filing a late return, or
underpaying taxes due. Penalties paid by the licensee shall be retained by the base
jurisdiction. Nothing in the Agreement limits the authority of a base jurisdiction to
impose any other penalties provided by the laws of the base jurisdiction.
Interest: R1230
The base jurisdiction, for itself and on behalf of the other jurisdictions, shall assess
interest on all delinquent taxes due each jurisdiction except taxes collected directly
by other jurisdictions in accordance with P1000 and P1120.300.
For a fleet based in the US, interest shall accrue at a rate of one percent per month.
For a fleet based in Canada, interest shall accrue at a rate equal to the Canadian
Federal Treasury Bill rate plus two percent and adjusted every calendar quarter.
2. Exit Conference and Audit Finalization – A650
An exit conference should be held with the licensee to review the preliminary
findings, including applicable penalty and interest, recommendations for
BEST PRACTICES AUDIT GUIDE
Page 37 of 45 May 2006
improvement, rights of appeal, and to whom the audit report should be addressed.
In addition, the licensee should be notified as to the results of the audit.
As part of the exit conference, the auditor should summarize any findings,
highlighting both strong and weak areas of the licensee's record keeping or distance
and fuel accounting system. The auditor should inform the licensee of problem
areas as the audit progresses. There should not be any surprises or controversy at
this stage of the audit.
During the exit conference, there are a few general areas that should be covered,
including:
An overview of the total audit.
Listing of specific problem areas, with an indication of the priority of the
problems.
Auditor recommendations for record keeping improvement.
Audit findings.
Payment/billing of the audit.
How the appeal process is initiated.
It is recommended that the exit meeting be attended by the licensee’s staff
management with the authority to implement the recommended changes.
It is also recommended that work-level employees familiar with the specific system
problems be involved. However, the final decision regarding attendance at the
meeting lies with the licensee; and that decision can be based on such factors as
licensee’s perception of what the dollar value of the findings will be. The auditor
must be prepared for varying numbers and different levels of people at the meeting.
Some general suggestions for preparing for and conducting the final review with the
licensee are:
a. Schedule the review of the audit results as far in advance as possible to allow
maximum licensee participation.
b. Have a presentation outline prepared to cover important areas.
c. Make extra copies of important documents and calculations so all in attendance
will be able to follow the discussion.
d. Mention areas of strength as well as weaknesses in the licensee's system.
e. Let the licensee know what to expect in the final audit report, including hints on
how to interpret potentially confusing documents, and identification of documents
that may be most applicable to the licensee's results.
BEST PRACTICES AUDIT GUIDE
Page 38 of 45 May 2006
f. Explain due process and outline the appeal process.
g. Ensure the licensee understands how the audit was performed; for example, how
samples were chosen and how results were applied.
h. Listen to the licensee's questions and comments to gauge how effectively and
clearly the auditor has "gotten the point across".
i. Be open to additional evidence and information provided by the licensee during
the review.
j. When possible, provide the applicable jurisdictional statutes/regulations, IFTA
Agreement and Section reference, etc., on which the findings are based. It's
important that the licensee knows that he/she was treated fairly, and that the
laws and rules, not the auditors, determine record keeping requirements.
G. Audit Report and Working Paper File – A660
1. Audit Report
After completing the audit work, the auditor must prepare an audit report to describe
and explain the results. The audit report is not intended to document each step
performed during the audit work, but rather to provide an overview of the process for
the licensee. A copy of the audit report shall be kept in the audit file.
A complete report documenting the audit must be prepared by the auditor and shall
contain, but not be limited to, the following information:
Name and address of the licensee.
Account number.
Audit period.
Types of records audited.
Description of audit techniques employed.
Net distance adjustment.
Net tax paid fuel purchases adjustment.
MPG/KPL as reported.
MPG/KPL as a result of the audit.
Net fuel tax adjustment per jurisdiction.
Remarks and recommendations; and
Signature of the auditor or reviewing jurisdictional official and date.
The audit report must contain enough information, including detailed schedules, for
the licensee to verify adjustments made.
BEST PRACTICES AUDIT GUIDE
Page 39 of 45 May 2006
2. Working Papers
The function of the auditor's working papers is to provide evidence of auditing
standards and adherence to the audit requirements under IFTA. The audit report
should cover:
The review and evaluation of the licensee’s system of internal control.
The auditing procedures followed.
The evidence obtained and scope of testing.
The support for the auditor's conclusion regarding the fairness of the licensee's
submitted records and the basis for the assessments rendered.
All working papers pertinent to the audit should be maintained in the permanent audit
file including, but not limited to:
Distance sample information.
Total fuel and tax paid credit sample information.
Distance adjustment calculations.
Fuel and tax paid credit adjustment calculations.
Comparison of audited and reported distance, total fuel and tax paid credit.
Notice of audit.
Audit report.
Calculation of tax due including penalty andinterest assessment per jurisdiction.
The content of the working papers depends on the situation encountered and the
type of audit. The majority of audits fall into two basic categories:
a. Good Records - Records are in good order with acceptable documents, with no
errors on the report and no assessment to be made. In this case, only minimal
documentation is necessary, such as:
Licensee identification items.
Source documents maintained.
Items reflected on source documents.
Procedures performed and the scope of procedure such as period(s) tested.
Auditor's evaluation of the Licensee’s records.
Recap or summary schedule.
Licensee correspondence.
Licensee contact log (pre, during and post).
Vehicle/equipment list.
BEST PRACTICES AUDIT GUIDE
Page 40 of 45 May 2006
Accounting of decals acquired/used.
Internal control questionnaire/evaluation.
Pre audit questionnaire (if used).
Sample source documents.
Sample projections.
Opening and Closing conference notes.
Note: On a “no change audit,” retain sufficient documentation to satisfy the
base jurisdictional and IFTA responsibilities.
b. Poor Records - For poor or incomplete records, document the problem areas.
The supporting documents may not be acceptable; or no source documents are
available. In these cases it is important to carefully document the findings. This
could include, but not be limited to, the following:
A list and example of all improperly completed documents.
Sample copies of improperly completed documents.
Samples by copy or reference of situations that are improper.
Each point of contention supported by the statute or rule governing that
situation.
The method used to make an assessment.
The identity of those present for the audit, including the name and title of the
person(s) representing the jurisdiction and the name and title of the person(s)
representing the licensee.
Comments regarding unusual items or transactions.
3. Permanent Audit File - A680
The Audit file will contain, but not be limited to the following:
a. Summary Schedules - Summary schedules shall include reported and audited
fuel and distance for each effected jurisdiction. They shall also include the
assessment or refund for the jurisdictions and the net total assessment or refund
due for the audit, including all penalties and interest.
b. Supplementary Schedules - Supplementary schedules shall provide additional
details for results on the summary schedules. Supplementary schedules will
contain, but not be limited to, schedules showing how audited fuel and distances
were calculated and in the computation of adjustment factors determined from a
BEST PRACTICES AUDIT GUIDE
Page 41 of 45 May 2006
sample, if applicable.
c. Detail Information - Detail information is documentation of actual records
reviewed which support the audit results. Detail information includes, but is not
limited to, the following:
Detail of bulk or retail purchases;
Detail of bulk fuel withdrawals;
Analysis of trips audited, showing audited distance in total and per
jurisdiction.
This information may be maintained on a workpaper or electronically, on a
database.
d. Listing of Records Maintained - A listing of records maintained shall indicate what
records are maintained and presented by the licensee and whether the records
comply with the Agreement. A synopsis of noted from the opening and closing
conferences with the licensee indicating the dates held and the persons in
attendance.
Following the close-out conference and any review period deemed necessary,
the base jurisdiction will furnish the licensee with the Licensee Audit Report and
its customary notice of assessment, billing or other notification which would
signify the beginning of the licensee’s appeal period.
Member jurisdictions may request copies of the audit reports and work papers. A
copy of the audit report, work papers, supporting documentation and any
pertinent post-audit communications must be maintained by the base jurisdiction
as part of the audit file for a period of four years from the completion of the audit.
4. Indexing Working Papers
Working papers should be retained to support the audit. Any pending matters
addressed in the working papers should be resolved. The arrangement of the audit
working papers will vary depending upon the needs of a particular audit. However,
the working paper files for each audit engagement should be arranged according to
jurisdiction guidelines.
5. General Working Paper Preparation
The following information is provided as recommendations in preparing working
papers.
a. Headings
Each working paper should be properly identified by its heading. The heading
BEST PRACTICES AUDIT GUIDE
Page 42 of 45 May 2006
should include the name of the licensee, a description of the contents or purpose
of the working papers, and the date of the audit. All working papers should be
cross-referenced, where applicable.
b. Signing and Dating
When possible, each page of the working papers should be signed (or initialed)
and dated by the preparer. Working papers should be dated with the date of
completion of the underlying work.
c. Narrative Comments and Tick Marks
The working papers should contain a clear record of the scope of the audit, the
conclusions reached, and an indication of the sources of information cited.
Working paper comments vary from a simple statement of fact to rather lengthy
discussions. No rules can be made to cover such widely varying situations, but
all comments should comply with the following general principles:
i. They must be clear, concise, and understandable.
ii. They must indicate clearly the sources of any factual information and the
names and positions of any employees whose opinions are quoted.
iii. They must reach a conclusion - under no circumstances should open
questions remain in the papers, either in the form of a "?" on the schedule, or
of a note which leaves the writer's opinion to the reader's imagination.
iv. Notes appearing in the working papers must not be inconsistent with each
other. Any inconsistencies noted on review must be reconciled and corrected
or amplified appropriately.
If the original conclusion is changed upon review because of additional
information or for other reasons, the note must be amplified so the reconsidered
conclusion is supported properly. A notation such as "O.K.," "No," or "Too small,"
alongside comments is not sufficient explanation.
Summaries of figures, narrative comments, conclusions, and use of tick marks
are generally more efficient techniques for indicating the degree of auditing than
listing voluminous details.
d. Legibility
It is essential that working papers be written legibly since they are the evidence
of audit of the licensee's reports. Particular care should be taken with printing or
writing names. Only one side of the paper should be used.
e. Taxpayer Prepared Information
BEST PRACTICES AUDIT GUIDE
Page 43 of 45 May 2006
When possible, analyses and schedules prepared by the licensees for their own
use should be included. Such working papers should bear an indication that the
licensee prepared them. The extent of test-checks of licensee-prepared
information will depend on the nature of the information and the appraisal of the
system of internal control.
f. Unnecessary Working Papers and Information
Schedules merely copying information readily available in the licensee records
should not be prepared. When working directly with licensee records, only
summary schedules, statements of work done, clear identification of items
selected for testing, unusual items noted and conclusions reached need to be
documented in the working papers. It is necessary to document those items
needed to reference the test information, such as: the truck number, period
tested and the procedures performed, trailer number, trip numbers, routes
traveled, etc. Advantages of using photocopies of licensee's records include:
i. Eliminates writing by hand.
ii. Helps defend.
iii. Reduces clerical error.
iv. Easier to review.
g. Record of Items Tested
Working papers must contain a record of, or provide a clear trail to, the items
selected for testing. This can be accomplished in a number of ways, and
techniques will vary by audit area and licensee. At a minimum, it is desirable to
maintain a simple list, identifying the document number for each item tested; i.e.,
trip sheet number, month, truck number, etc.
There are many situations where details for each item selected for testing should
be recorded on schedules to enable an orderly completion of multi-step tests and
to provide information necessary to enable an effective review by those in charge
of the examination. In these cases, the records of items will be clearly
established.
6. Review of the Audit
The audit report and supporting schedules shall be reviewed by an audit
manager/supervisor. The purpose of this review is to determine that:
a. The audit was performed in accordance with IFTA and jurisdictional standards.
b. The report is mathematically correct.
BEST PRACTICES AUDIT GUIDE
Page 44 of 45 May 2006
c. Evidence supports the conclusions drawn and assessments made.
d. The auditor's judgments, methods, and approach were appropriate.
e. The audit is defensible and there are no unanswered questions, ambiguous
conclusions, or inconsistent evaluations.
7. Netting Of Audit Adjustments
When the - audit result is a net underpayment by the licensee, the base jurisdiction
shall collect the amount of the underpayment from the licensee, pursuant to the base
jurisdiction’s laws and procedures. When the result is a net overpayment by the
licensee, the base jurisdiction shall refund the amount of overpayment to the
licensee.
*The theory that an audit should make the licensee whole must be applicable when
acceptable documentation is maintained and netting should take place. This theory
should also take into consideration the other affected jurisdictions and the licensee’s
competition. In cases where internal controls are lacking or source documents do
not give sufficient indication of the movement of the vehicles or auditor creation of
distances is necessary, the rewarding of the licensee with a refund from any
jurisdiction should be discouraged. Rewarding a licensee, through refund, could put
that licensee at a competitive advantage over their competition, who took the time
and resources to calculate the distance, fuel usage and taxes correctly the first time.
Auditors should ask themselves, “Under these conditions, would I refund my own
money?”
8. Communications With Other Jurisdictions - A690, A660
Within 45 days of furnishing the licensee with the finalized Licensee Audit Report and
its customary notification of assessment or billing, the commissioner shall send an
Interjurisdictional Audit Report to all affected member jurisdictions notifying those
jurisdictions of the accuracy of the records of said licensee and any resulting
adjustment of fuel taxes. An affected jurisdiction is any jurisdiction in which the
licensee reported or accrued miles/kilometers, fuel or experiences any changes in
the reported vs. audited calculations during the audit period.
The Licensee Audit Report shall be considered to be finalized when the notification
of assessment or billing issued to the licensee triggers the right to appeal such
assessment or billing. Where a licensee does not agree with the initial notification of
audit findings and the base jurisdiction has granted more time to review the audit
BEST PRACTICES AUDIT GUIDE
Page 45 of 45 May 2006
results and/or review additional records before the formal appeals process begins,
the Licensee Audit Report will not be considered finalized.
The base jurisdiction shall prepare an Interjurisdictional Audit Report that shall
contain, but not be limited to, the following information:
a. Name of the base jurisdiction.
b. Name and address of the licensee.
c. Federal Employer Identification Number or equivalent.
d. Reported tax by jurisdiction.
e. Audited tax by jurisdiction.
f. Penalty.
g. Interest by jurisdiction.
h. Total by jurisdiction.

Navigation menu