SECTION 2. SUMMARY OF

STANDARD MILEAGE RATES

.01 Standard mileage rates

therein do not apply to any expense to the extent that, under the grant of regulatory authority in § 274(d), the Commissioner has provided that substantiation is not required for the expense.

.07 Under § 1.62–2(c), a reimbursement or other expense allowance arrangement satisfies the requirements of § 62(c) if it meets the requirements of business connection, substantiation, and returning amounts in excess of expenses as specified in the regulations. If an arrangement meets these requirements, all amounts paid under the arrangement are treated as paid under an accountable plan and are excluded from income and wages. If an arrangement does not meet these requirements, all amounts paid under the arrangement are treated as paid under a nonaccountable plan and are included in the employee’s gross income, must be reported as wages or compensation on the employee’s Form W–2, and are subject to the withholding and payment of employment taxes. Section 1.62–2(e)(2) specifically provides that substantiation of certain business expenses in accordance with rules prescribed under the authority of § 1.274–5(g) will be treated as substantiation of the amount of the expenses for purposes of § 1.62–2. Under § 1.62–2(f)(2), the Commissioner may prescribe rules under which an arrangement providing mileage allowances is treated as satisfying the requirement of returning amounts in excess of expenses, even though the arrangement does not require the employee to return the portion of the allowance that relates to miles of travel substantiated and that exceeds the amount of the employee’s expenses deemed substantiated pursuant to rules prescribed under § 274(d), provided the allowance is reasonably calculated not to exceed the amount of the employee’s expenses or anticipated expenses and the

.02 Determination of standard mileage rates . The business and medical and moving standard mileage rates reflected in this revenue procedure are based on an annual study of the fixed and variable costs of operating an automobile conducted on behalf of the Service by an independent contractor. The charitable contribution standard mileage rate is provided in § 170(i) of the Internal Revenue Code.