SECTION 8. WITHHOLDING AND

PAYMENT OF EMPLOYMENT TAXES

.01 The portion of a per diem allowance, if any, that relates to the days of business travel substantiated and that exceeds the amount deemed substantiated for those days under section 4.01, 4.02, or 5 of this revenue procedure is subject to withholding and payment of employment taxes. See § 1.62–2(h)(2)(i)(B).

.02 In the case of a per diem allowance paid as a reimbursement, the excess described in section 8.01 of this revenue procedure is subject to withholding and payment of employment taxes in the payroll period in which the payor reimburses the expenses for the days of travel substantiated. See § 1.62–2(h)(2)(i)(B)( 2 ).

.03 In the case of a per diem allowance paid as an advance, the excess described in section 8.01 of this revenue procedure is subject to withholding and payment of employment taxes no later than the first payroll period following the payroll period in which the days of travel with respect to which the advance was paid are substantiated. See § 1.62–2(h)(2)(i)(B)( 3 ). If some or all of the days of travel with respect to which the advance was paid are not substantiated within a reasonable period of time and the employee does not return the portion of the allowance that relates to those days within a reasonable period of time, the portion of the allowance that relates to those days is subject to withholding and payment of employment taxes

the employee’s expenses deemed substantiated under section 4.02 of this revenue procedure ($102) for the 3 substantiated days of travel. However, the $18 excess portion of the allowance is treated as paid under a nonaccountable plan as discussed in section 7.04 of this revenue procedure.

.03 An employee is not required to include in gross income the portion of a per diem allowance received from a payor that is less than or equal to the amount deemed substantiated under the rules provided in section 4 or 5 of this revenue procedure if the employee substantiates the business travel expenses covered by the per diem allowance in accordance with section 7.01 of this revenue procedure. See § 1.274–5(f)(2)(i). In addition, such 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 the withholding and payment of employment taxes. See § 1.62–2(c)(2) and (c)(4).

.04 An employee is required to include in gross income only the portion of the per diem allowance received from a payor that exceeds the amount deemed substantiated under the rules provided in section 4 or 5 of this revenue procedure if the employee substantiates the business travel expenses covered by the per diem allowance in accordance with section 7.01 of this revenue procedure. See § 1.274–5(f)(2)(ii). 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).

.05 If the amount of the expenses that is deemed substantiated under the rules provided in section 4.01, 4.02, or 5 of this revenue procedure is less than the amount of the employee’s business expenses for travel away from home, the employee may claim an itemized deduction for the amount by which the business travel expenses exceed the amount that is deemed substantiated, provided the employee substantiates all the business travel expenses, includes on Form 2106, Employee Business Expenses, the deemed substantiated portion of the per diem allowance received from the payor, and includes in gross income the portion (if any) of the per diem allowance received from the

payor that exceeds the amount deemed substantiated. See § 1.274–5(f)(2)(iii). However, for purposes of claiming this itemized deduction with respect to meal and incidental expenses, 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 amount computed under section 4.03 of this revenue procedure minus the amount deemed substantiated under sections 4.02 and 7.01 of this revenue procedure. The itemized deduction is subject to the appropriate limitation (see section 2.02 of this revenue procedure) on meal and entertainment expenses provided in § 274(n) and the 2-percent floor on miscellaneous itemized deductions provided in § 67.

.06 An employee who pays or incurs amounts for meal expenses and does not receive a per diem allowance for meal and incidental expenses may deduct an amount computed pursuant to section 4.03 of this revenue procedure only as an itemized deduction. This itemized deduction is subject to the appropriate limitation on meal and entertainment expenses provided in § 274(n) and the 2-percent floor on miscellaneous itemized deductions provided in § 67. See section 7.07 of this revenue procedure for the treatment of an employee who does not pay or incur amounts for meal expenses and does not receive a per diem allowance for incidental expenses.

.07 An employee who does not pay or incur amounts for meal expenses and does not receive a per diem allowance for incidental expenses may deduct an amount computed pursuant to section 4.05 of this revenue procedure only as an itemized deduction. This itemized deduction is subject to the 2-percent floor on miscellaneous itemized deductions provided in § 67. See section 7.06 of this revenue procedure for the treatment of an employee who pays or incurs amounts for meal expenses and does not receive a per diem allowance for meal and incidental expenses.

.08 A self-employed individual who pays or incurs meal expenses for a calendar day (or partial day) of travel away from home may deduct an amount computed pursuant to section 4.03 of this revenue procedure in determining adjusted gross income under § 62(a)(1). This deduction is subject to the appropriate limitation on meal and entertainment expenses provided in § 274(n).

2003-45 I.R.B. 1045 November 10, 2003

no later than the first payroll period following the end of the reasonable period. See § 1.62–2(h)(2)(i)(A).

.04 In the case of a per diem allowance only for meal and incidental expenses for travel away from home paid to an employee in the transportation industry by a payor that uses the rule in section 4.04(3) of this revenue procedure, the excess of the per diem allowance paid for the period over the amount deemed substantiated for the period under section 4.02 of this revenue procedure (after applying section 4.04(3) of this revenue procedure), is subject to withholding and payment of employment taxes no later than the first payroll period following the payroll period in which the excess is computed. See § 1.62–2(h)(2)(i)(B)( 4 ).

.05 For example, assume that an employer pays an employee a per diem allowance to cover business expenses for meals and lodging for travel away from home at a rate of 120 percent of the federal per diem rate for the localities to which the employee travels. The employer does not require the employee to return the 20 percent by which the reimbursement for those expenses exceeds the federal per diem rate. The employee substantiates 6 days of travel away from home: 2 days in a locality in which the federal per diem rate is $100 and 4 days in a locality in which the federal per diem rate is $125. The employer reimburses the employee $840 for the 6 days of travel away from home (2 x (120% x $100) + 4 x (120% x $125)), and does not require the employee to return the excess payment of $140 (2 days x $20 ($120–$100) + 4 days x $25 ($150–$125)). For the payroll period in which the employer reimburses the expenses, the employer must withhold and pay employment taxes on $140. See section 8.02 of this revenue procedure.