SECTION 9. APPLICATION
Internal Revenue Bulletin 2008-50 · 2026-10-03 edition · updated 2026-10-04 · United States
.01 If a payor pays a mileage allowance in lieu of reimbursing actual transportation expenses incurred or to be incurred by an employee, the amount of the expenses that is deemed substantiated to the payor is either:
(1) for any mileage allowance other than a FAVR allowance, the lesser of the amount paid under the mileage allowance or the applicable standard mileage rate in section 5.01 of this revenue procedure multiplied by the number of business miles substantiated by the employee; or
(2) for a FAVR allowance, the amount paid under the FAVR allowance less the sum of (a) any periodic variable rate payment that relates to miles in excess of the business miles substantiated by the employee and that the employee fails to return to the payor although required to do so, (b) any portion of a periodic fixed payment that relates to a period during which the employee is treated as not covered by the FAVR allowance and that the employee fails to return to the payor although required to do so, and (c) any optional high mileage payments.
.02 If the amount of transportation expenses is deemed substantiated under the rules provided in section 9.01 of this revenue procedure, and the employee actually substantiates to the payor the elements of time, place (or use), and business purpose of the transportation expenses in accordance with paragraphs (b)(2) (travel away from home) and (b)(6) (listed property, which includes passenger automobiles and
annual business mileage of that FAVR allowance. If the employee is covered by the FAVR allowance for less than the entire calendar year, these limits may be prorated on a monthly basis.
(2) A FAVR allowance may not be paid to a control employee (as defined in § 1.61–21(f)(5) and (6), excluding the $100,000 limitation in paragraph (f)(5)(iii)).
(3) An employer may not pay a FAVR allowance if at any time during a calendar year a majority of the employees covered by the FAVR allowance are management employees.
(4) An employer may not pay a FAVR allowance to any employee unless at all times during a calendar year at least five employees in total are covered by FAVR allowances provided by the employer.
(5) A FAVR allowance may be paid only with respect to an automobile (a) owned or leased by the employee receiving the payment, (b) the cost of which, as a new vehicle (whether or not purchased new by the employee), was at least 90 percent of the standard automobile cost taken into account for purposes of determining the FAVR allowance for the first calendar year the employee receives the allowance with respect to that automobile, and (c) the model year of which does not differ from the current calendar year by more than the number of years in the retention period.
(6) A FAVR allowance may not be paid with respect to an automobile leased by an employee for which the employee has used actual expenses to compute the deductible business expenses of the automobile for any year during the entire lease period. 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.
(7) The insurance cost component of a FAVR allowance must be based on the rates charged in the base locality for insurance coverage on the standard automobile during the current calendar year without taking into account rate-increasing factors such as poor driving records or young drivers.
(8) A FAVR allowance may be paid only to an employee whose insurance coverage limits on the automobile with respect to which the FAVR allowance is paid are at least equal to the insurance coverage lim
its used to compute the periodic fixed payment under that FAVR allowance.
.06 Employee reporting . Within 30 days after an employee’s automobile is initially covered by a FAVR allowance, or is again covered by a FAVR allowance if coverage has lapsed, the employee by written declaration must provide the payor with the following information: (1) the make, model, and year of the employee’s automobile, (2) written proof of the insurance coverage limits on the automobile, (3) the odometer reading of the automobile, (4) if owned, the purchase price of the automobile or, if leased, the price at which the automobile is ordinarily sold by retailers (the gross capitalized cost of the automobile), and (5) if owned, whether the employee has claimed depreciation with respect to the automobile using any of the depreciation methods prohibited by section 8.04(1) of this revenue procedure or, if leased, whether the employee has computed deductible business expenses with respect to the automobile using actual expenses. The information described in (1), (2), and (3) of the preceding sentence also must be supplied by the employee to the payor within 30 days after the beginning of each calendar year that the employee’s automobile is covered by a FAVR allowance.
.07 Payor recordkeeping and reporting . (1) The payor or its agent must maintain written records setting forth (a) the statistical 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 the Modified Accelerated Cost Recovery System 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
2008–50 I.R.B. 1291 December 15, 2008
In addition, the excess portion of the allowance is treated as paid under a nonaccountable plan, is reported as wages or other compensation on the employee’s Form W–2, and is subject to withholding and payment of employment taxes. See § 1.62–2(c)(3)(ii), (c)(5), and (h)(2)(i)(B).
.06 If an employee’s substantiated expenses are less than the employee’s actual expenses, the following rules apply:
(1) Except as otherwise provided in section 9.06(2) of this revenue procedure with respect to leased automobiles, if the amount of the expenses deemed substantiated under the rules provided in section 9.01 of this revenue procedure is less than the amount of the employee’s business transportation expenses, the employee may claim an itemized deduction for the amount by which the business transportation expenses exceed the amount that is deemed substantiated, provided the employee substantiates all the business transportation expenses (not just the excess over the business standard mileage rate), includes on Form 2106, Employee Busi- ness Expenses, the deemed substantiated portion of the mileage allowance received from the payor, and includes in gross income the portion (if any) of the mileage allowance received from the payor that exceeds the amount deemed substantiated. See § 1.274–5T(f)(2)(iii). However, for purposes of claiming this itemized deduction, substantiation of the amount of the expenses is not required if the employee is claiming a deduction that is equal to or less than the applicable standard mileage rate multiplied by the number of business miles substantiated by the employee minus the amount deemed substantiated under section 9.01 of this revenue procedure. The itemized deduction is subject to the 2-percent floor on miscellaneous itemized deductions provided in § 67.
(2) An employee whose business transportation expenses with respect to a leased automobile are deemed substantiated under section 9.01(1) of this revenue procedure (relating to an allowance other than a FAVR allowance) may not claim a deduction based on actual expenses under section 9.06(1) unless the employee does so consistently beginning with the first business use of the automobile after December 31, 1997. An employee whose business transportation expenses with respect to a leased automobile are deemed substanti
any other property used as a means of transportation) of § 1.274–5T, and paragraph (c) of § 1.274–5, the employee is deemed to satisfy the adequate accounting requirements of § 1.274–5(f) as well as the requirement to substantiate by adequate records or other sufficient evidence for purposes of § 1.274–5(c). See also § 1.62–2(e)(1) for the rule that, in order to satisfy the substantiation requirement of an accountable plan, an arrangement must require business expenses to be substantiated to the payor within a reasonable period of time.
.03 An arrangement providing mileage allowances will be treated as satisfying the requirement of § 1.62–2(f)(2) with respect to returning amounts in excess of expenses as follows:
(1) For a mileage allowance (other than a FAVR allowance) paid only at a cents-per-mile rate, the requirement to return excess amounts is treated as satisfied if the employee is required to return within a reasonable period of time (as defined in § 1.62–2(g)) any portion of the allowance that relates to miles of travel not substantiated by the employee, even though the arrangement does not require the employee to return the portion of the allowance that relates to the miles of travel substantiated and that exceeds the amount of the employee’s expenses deemed substantiated. For example, assume a payor provides an employee an advance mileage allowance of $120.00 based on an anticipated 200 business miles at 60 cents per mile (at a time when the business standard mileage rate is 55 cents per mile), and the employee substantiates 120 business miles. The requirement to return excess amounts is treated as satisfied if the employee is required to return the portion of the allowance that relates to the 80 unsubstantiated business miles ($48.00) even though the employee is not required to return the portion of the allowance ($6.00) that exceeds the amount of the employee’s expenses deemed substantiated under section 9.01 of this revenue procedure ($66.00) for the 120 substantiated business miles. However, the $6.00 excess portion of the allowance is treated as paid under a nonaccountable plan as discussed in section 9.05.
(2) For a mileage allowance (other than a FAVR allowance) paid other than only at a cents-per-mile rate, the requirement
to return excess amounts is treated as satisfied if the employee is required to return within a reasonable period of time (as defined in § 1.62–2(g)) any portion of the allowance that exceeds the product of the standard mileage rate and the number of miles of travel substantiated by the employee. For example, assume a payor provides an employee an advance mileage allowance of $400 per month plus 20 cents per mile based on an anticipated 2000 miles for a total of $800 (at a time when the business standard mileage rate is 55 cents per mile), and the employee substantiates 1000 business miles. The requirement to return excess amounts is treated as satisfied if the employee is required to return $250, the portion of the allowance that exceeds the product of the standard mileage rate and the miles substantiated ($550).
(3) For a FAVR allowance, the requirement to return excess amounts is treated as satisfied if the employee is required to return, within a reasonable period of time (as defined in § 1.62–2(g)), (a) the portion (if any) of the periodic variable payment received that relates to miles in excess of the business miles substantiated by the employee, and (b) the portion (if any) of a periodic fixed payment that relates to a period during which the employee was not covered by the FAVR allowance.
.04 An employee is not required to include in gross income the portion of a mileage allowance received from a payor that is less than or equal to the amount deemed substantiated under section 9.01 of this revenue procedure, provided the employee substantiates in accordance with section 9.02. See § 1.274–5T(f)(2)(i). Assuming that the remaining requirements for an accountable plan provided in § 1.62–2 are satisfied, that portion of the allowance is treated as paid under an accountable plan, is not reported as wages or other compensation on the employee’s Form W–2, and is exempt from withholding and payment of employment taxes. See § 1.62–2(c)(2) and (c)(4).
.05 An employee is required to include in gross income the portion of a mileage allowance received from a payor that exceeds the amount deemed substantiated under section 9.01 of this revenue procedure, provided the employee substantiates in accordance with section 9.02 of this revenue procedure. See § 1.274–5T(f)(2)(ii).
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than the first payroll period following the payroll period in which the 400 business miles traveled are substantiated, the employer must withhold and pay employment taxes on $20.00.
.02 The portion of a FAVR allowance, if any, that exceeds the amount deemed substantiated for those miles under section 9.01(2) of this revenue procedure is subject to withholding and payment of employment taxes. See § 1.62–2(h)(2)(i)(B).
(1) Any periodic variable rate payment that relates to miles in excess of the business miles substantiated by the employee and that the employee fails to return within a reasonable period, or any portion of a periodic fixed payment that relates to a period during which the employee is treated as not covered by the FAVR allowance and that the employee fails to return within a reasonable period, is subject to withholding and payment of employment taxes no later than the first payroll period following the end of the reasonable period. See § 1.62–2(h)(2)(i)(A).
(2) Any optional high mileage payment is subject to withholding and payment of employment taxes when paid.
.03 If a mileage allowance arrangement has no mechanism or process to determine when an allowance exceeds the amount that may be deemed substantiated and the arrangement routinely pays allowances in excess of the amount that may be deemed substantiated without requiring actual substantiation of all the expenses or repayment of the excess amount, the failure of the arrangement to treat the excess allowances as wages for employment tax purposes causes all payments made under the arrangement to be treated as made under a nonaccountable plan under §1.62–2(k). Therefore, all payments made under the arrangement are subject to withholding and payment of employment taxes. See Rev. Rul. 2006–56 and § 9.09 of this revenue procedure.
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