SECTION 4. DEFINITIONS

.01 Standard mileage rate. The term “standard mileage rate” means the applicable amount provided by the Service for optional use by employees or self-employed individuals in computing the deductible costs of operating automobiles (including vans, pickups, or panel trucks) owned or leased for business purposes, or by taxpayers in computing the deductible costs of operating automobiles for charitable, medical, or moving expense purposes.

.02 Transportation expenses. The term “transportation expenses” means the expenses of operating an automobile for local travel or transportation away from home.

.03 Mileage allowance. The term “mileage allowance” means a payment under a reimbursement or other expense allowance arrangement that meets the requirements specified in § 1.62–2(c)(1) and that is

October 25, 1999 526 1999–43 I.R.B.

.02 Use of the business standard mile- age rate. A taxpayer may use the business standard mileage rate with respect to an automobile that is either owned or leased by the taxpayer. 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 operating and fixed) paid or incurred by the taxpayer that are allocable to traveling those business miles.

.03 Business standard mileage rate in lieu of operating and fixed costs. A deduction using the standard mileage rate for business miles is computed on a yearly basis and is in lieu of all operating and fixed costs of the automobile allocable to business purposes (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, and license and registration fees are included in operating and fixed costs for this purpose.

.04 Parking fees, tolls, interest, and taxes. Parking fees and tolls attributable to use of the automobile for business purposes may be deducted as separate items. Likewise, interest relating to the purchase of the automobile as well as state and local taxes (other than those included in the cost of gasoline) may be deducted as separate items, but only to the extent that the interest or taxes are allowable deductions under § 163 or 164 respectively. If the automobile is operated less than 100 percent for business purposes, an allocation is required to determine the business and nonbusiness portion of the taxes and interest deduction allowable. However, § 163(h)(2)(A) expressly provides that interest is nondeductible personal interest when it is paid or accrued on indebtedness properly allocable to the trade or business of performing services as an employee. Section 164 also expressly provides that state and local taxes that are paid or accrued by a taxpayer in connection with an acquisition or disposition of property will be treated as part of the cost of the acquired property or as a reduction in the amount realized on the disposition of such property.

.05 Depreciation. For owned automobiles placed in service for business purposes, and for which the business standard mileage rate has been used for any

year, depreciation will be considered to have been allowed at the rate of 12 cents per mile for 1996, 1997, 1998, and 1999; and 14 cents per mile for 2000, for those years in which the business standard mileage rate was used. If actual costs were used for one or more of those years, the rates above will not apply to any year in which such costs were used. The depreciation described above will reduce the basis of the automobile (but not below zero) in determining adjusted basis as required by § 1016.

.06 Limitations.

(1) The business standard mileage rate may not be used to compute the deductible expenses of (a) automobiles used for hire, such as taxicabs, or (b) two or more automobiles used simultaneously (such as in fleet operations).

(2) The business standard mileage rate may not be used to compute the deductible business expenses of an automobile leased by a taxpayer unless the taxpayer uses either the business standard mileage rate or a FAVR allowance (as provided in section 8 of this revenue procedure) to compute the deductible business expenses of the automobile 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.

(3) The business standard mileage rate may not be used to compute the deductible expenses of an automobile for which the taxpayer has (a) claimed depreciation using a method other than straightline 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. 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) The business standard mileage rate and this revenue procedure may not be used to compute the amount of the de

ductible automobile expenses of an employee of the United States Postal Service incurred in performing services involving the collection and delivery of mail on a rural route if the employee receives qualified reimbursements (as defined in § 162(o)) for such expenses. See § 162(o) for the rules that apply to these qualified reimbursements.