SECTION 5. BUSINESS STANDARD

MILEAGE RATE

.01 In general . The standard mileage rate for transportation expenses is 50 cents per mile for all miles of business use.

.02 Use of the business standard mileage rate . A taxpayer may use the business standard mileage rate for an automobile that a taxpayer either owns or leases. A taxpayer generally may deduct an amount equal to either the business standard mileage rate times the number of business miles traveled or the actual costs (both fixed and variable) the taxpayer pays or incurs that are allocable to traveling those business miles.

.03 Business standard mileage rate in lieu of fixed and variable costs . A taxpayer computes a deduction using the busi

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or stated schedule that combines periodic fixed and variable rate payments that meet all the requirements of this section 8.

(2) A payor must base the amount of a FAVR allowance 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 Computation of FAVR allowance . (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, 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 performing services as an employee of the employer in a base locality, and must be paid at least quarterly. A payor may compute a periodic fixed payment 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

ductible expenses of (a) automobiles used for hire, such as taxicabs, or (b) five or more automobiles owned or leased by a taxpayer and used simultaneously (such as in fleet operations).

(2) A taxpayer may not use the business standard mileage rate to compute the deductible business expenses of an automobile a taxpayer leases unless the taxpayer uses either the business standard mileage rate or a fixed and variable rate allowance (FAVR allowance) (as provided in section 8 of this revenue procedure) to compute the deductible business expenses of the automobile for the lease period.

(3) A taxpayer may not use the business standard mileage rate to compute the deductible expenses of an automobile for which the taxpayer has (a) claimed depreciation using a method other than straight-line for its estimated useful life, (b) claimed a § 179 deduction, (c) claimed the additional first-year depreciation allowance under, for example, § 168(k) or § 168(n), or (d) used the Accelerated Cost Recovery System (ACRS) under former § 168 or the Modified Accelerated Cost Recovery System (MACRS) under current § 168. By using the business standard mileage rate, the taxpayer has elected to exclude the automobile (if owned) from MACRS pursuant to § 168(f)(1). If, after using the business standard mileage rate, the taxpayer uses actual costs, the taxpayer must use straight-line depreciation for the automobile’s remaining estimated useful life (subject to the applicable depreciation deduction limitations under § 280F).

(4) A taxpayer who is an employee of the United States Postal Service may not use the business standard mileage rate and this revenue procedure to compute the amount of the taxpayer’s deductible automobile expenses incurred in performing services involving the collection and delivery of mail on a rural route if the taxpayer receives qualified reimbursements (as defined in § 162(o)) for the expenses. See § 162(o) for the rules that apply to these qualified reimbursements.