SECTION 8. FIXED AND VARIABLE
Internal Revenue Bulletin 2002-39 · 2026-10-03 edition · updated 2026-10-04 · United States
RATE ALLOWANCE
.01 In general.
(1) The ordinary and necessary expenses paid or incurred by an employee in driving an automobile owned or leased by the employee in connection with the performance of services as an employee of the
employer will be deemed substantiated (in an amount determined under section 9 of this revenue procedure) when a payor reimburses such expenses with a mileage allowance using a flat rate or stated schedule that combines periodic fixed and variable rate payments that meet all the requirements of section 8 of this revenue procedure (a FAVR allowance).
(2) The amount of a FAVR allowance must be based on data that (a) is derived from the base locality, (b) reflects retail prices paid by consumers, and (c) is reasonable and statistically defensible in approximating the actual expenses employees receiving the allowance would incur as owners of the standard automobile.
.02 Definitions.
(1) FAVR allowance. A FAVR allowance includes periodic fixed payments and periodic variable payments. A payor may maintain more than one FAVR allowance. A FAVR allowance that uses the same payor, standard automobile (or an automobile of the same make and model that is comparably equipped), retention period, and business use percentage is considered one FAVR allowance, even though other features of the allowance may vary. A FAVR allowance also includes any optional high mileage payments; however, such optional high mileage payments are included in the employee’s gross income, are reported as wages or other compensation on the employee’s Form W–2, and are subject to withholding and payment of employment taxes when paid. See section 9.05 of this revenue procedure. An optional high mileage payment covers the additional depreciation for a standard automobile attributable to business miles driven and substantiated by the employee for a calendar year in excess of the annual business mileage for that year. If an employee is covered by the FAVR allowance for less than the entire calendar year, the annual business mileage may be prorated on a monthly basis for purposes of the preceding sentence.
(2) Periodic fixed payment. A periodic fixed payment covers the projected fixed costs (including depreciation (or lease payments), insurance, registration and license fees, and personal property taxes) of driving the standard automobile in connection with the performance of services as an employee of the employer in a base locality, and must be paid at least quarterly. A periodic fixed payment may be computed
by (a) dividing the total projected fixed costs of the standard automobile for all years of the retention period, determined at the beginning of the retention period, by the number of periodic fixed payments in the retention period, and (b) multiplying the resulting amount by the business use percentage.
(3) Periodic variable payment. A periodic variable payment covers the projected operating costs (including gasoline and all taxes thereon, oil, tires, and routine maintenance and repairs) of driving a standard automobile in connection with the performance of services as an employee of the employer in a base locality, and must be paid at least quarterly. The rate of a periodic variable payment for a computation period may be computed by dividing the total projected operating costs for the standard automobile for the computation period, determined at the beginning of the computation period, by the computation period mileage. A computation period can be any period of a year or less. Computation period mileage is the total mileage (business and personal) a payor reasonably projects a standard automobile will be driven during a computation period and equals the retention mileage divided by the number of computation periods in the retention period. For each business mile substantiated by the employee for the computation period, the periodic variable payment must be paid at a rate that does not exceed the rate for that computation period.
(4) Base locality. A base locality is the particular geographic locality or region of the United States in which the costs of driving an automobile in connection with the performance of services as an employee of the employer are generally paid or incurred by the employee. Thus, for purposes of determining the amount of fixed costs, the base locality is generally the geographic locality or region in which the employee resides. For purposes of determining the amount of operating costs, the base locality is generally the geographic locality or region in which the employee drives the automobile in connection with the performance of services as an employee of the employer.
(5) Standard automobile. A standard automobile is the automobile selected by the payor on which a specific FAVR allowance is based.
2002-39 I.R.B. 619 September 30, 2002
(9) Business use percentage. A business use percentage is determined by dividing the annual business mileage by the annual mileage. The business use percentage may not exceed 75 percent. In lieu of demonstrating the reasonableness of the business use percentage based on records of total mileage and business mileage driven by the employees annually, a payor may use a business use percentage that is less than or equal to the following percentages for a FAVR allowance that is paid for the following annual business mileage:
(6) Standard automobile cost. The standard automobile cost for a calendar year may not exceed 95 percent of the sum of (a) the retail dealer invoice cost of the standard automobile in the base locality, and (b) state and local sales or use taxes applicable on the purchase of such an automobile. Further, the standard automobile cost may not exceed $26,900.
(7) Annual mileage. Annual mileage is the total mileage (business and personal) a payor reasonably projects a standard automobile will be driven during a calendar
year. Annual mileage equals the annual business mileage divided by the business use percentage.
(8) Annual business mileage. Annual business mileage is the mileage a payor reasonably projects a standard automobile will be driven by an employee in connection with the performance of services as an employee of the employer during the calendar year, but may not be less than 6,250 miles for a calendar year. Annual business mileage equals the annual mileage multiplied by the business use percentage.
Annual business mileage Business use percentage 6,250 or more but less than 10,000 45 percent 10,000 or more but less than 15,000 55 percent 15,000 or more but less than 20,000 65 percent 20,000 or more 75 percent
(10) Retention period. A retention period is the period in calendar years selected by the payor during which the payor expects an employee to drive a standard automobile in connection with the performance of services as an employee of the employer before the automobile is replaced. Such period may not be less than two calendar years.
(11) Retention mileage. Retention mileage is the annual mileage multiplied by the number of calendar years in the retention period.
(12) Residual value. The residual value of a standard automobile is the projected amount for which it could be sold at the end of the retention period after being driven the retention mileage. The Service will accept the following safe harbor residual values for a standard automobile computed as a percentage of the standard automobile cost:
Retention period Residual value 2–year 70 percent 3–year 60 percent 4–year 50 percent
.03 FAVR allowance in lieu of operat- ing and fixed costs.
(1) A reimbursement computed using a FAVR allowance is in lieu of the employee’s deduction of all the operating and fixed costs paid or incurred by an employee in driving the automobile in con
nection with the performance of services as an employee of the employer, except as provided in section 9.06 of this revenue procedure. Such items as depreciation (or lease payments), maintenance and repairs, tires, gasoline (including all taxes thereon), oil, insurance, license and registration fees, and personal property taxes are included in operating and fixed costs for this purpose.
(2) Parking fees and tolls attributable to an employee driving the standard automobile in connection with the performance of services as an employee of the employer are not included in fixed and operating costs and may be deducted as separate items. Similarly, interest relating to the purchase of the standard automobile may be deducted as a separate item, but only to the extent that the interest is an allowable deduction under § 163.
.04 Depreciation.
(1) A FAVR allowance may not be paid with respect to an automobile for which the employee has (a) claimed depreciation using a method other than straight-line for its estimated useful life, (b) claimed a § 179 deduction, or (c) used the Accelerated Cost Recovery System (ACRS) under former § 168 or the Modified Accelerated Cost Recovery System (MACRS) under current § 168. If an employee uses actual costs for an owned automobile that has been covered by a FAVR allowance, the
employee must use straight-line depreciation for the automobile’s remaining estimated useful life (subject to the applicable depreciation deduction limitations under § 280F).
(2) Except as provided in section 8.04(3) of this revenue procedure, the total amount of the depreciation component for the retention period taken into account in computing the periodic fixed payments for that retention period may not exceed the excess of the standard automobile cost over the residual value of the standard automobile. In addition, the total amount of such depreciation component may not exceed the sum of the annual § 280F limitations on depreciation (in effect at the beginning of the retention period) that apply to the standard automobile during the retention period.
(3) If the depreciation component of periodic fixed payments exceeds the limitations in section 8.04(2) of this revenue procedure, that section will be treated as satisfied in any year during which the total annual amount of the periodic fixed payments and the periodic variable payments made to an employee driving 80 percent of the annual business mileage of the standard automobile does not exceed the amount obtained by multiplying 80 percent of the annual business mileage of the standard automobile by the applicable business stan
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tistical data and projections on which the FAVR allowance payments are based, and (b) the information provided by the employees pursuant to section 8.06 of this revenue procedure.
(2) Within 30 days of the end of each calendar year, the employer must provide each employee covered by a FAVR allowance during that year with a statement that, for automobile owners, lists the amount of depreciation included in each periodic fixed payment portion of the FAVR allowance paid during that calendar year and explains that by receiving a FAVR allowance the employee has elected to exclude the automobile from MACRS pursuant to § 168(f)(1). For automobile lessees, the statement must explain that by receiving the FAVR allowance the employee may not compute the deductible business expenses of the automobile using actual expenses for the entire lease period (including renewals). For a lease commencing on or before December 31, 1997, the “entire lease period” means the portion of the lease period (including renewals) remaining after that date.
.08 Failure to meet section 8 require- ments. If an employee receives a mileage allowance that fails to meet one or more of the requirements of section 8 of this revenue procedure, the employee may not be treated as covered by any FAVR allowance of the payor during the period of such failure. Nevertheless, the expenses to which that mileage allowance relates may be deemed substantiated using the method described in sections 5, 9.01(1), and 9.02 of this revenue procedure to the extent the requirements of those sections are met.
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