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Introduction

SECTION 7. EFFECT ON OTHER

Internal Revenue Bulletin 2003-45 · 2026-10-03 edition · updated 2026-10-04 · United States

DOCUMENTS

Rev. Proc. 2002–38 and Rev. Proc. 2002–39 are modified.

DRAFTING INFORMATION

The principal authors of this revenue procedure are Roy A. Hirschhorn and

2003-45 I.R.B. 1037 November 10, 2003

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 employee is required to return any portion of such an allowance that relates to days of travel not substantiated.

.08 Section 1.62–2(h)(2)(i)(B) provides that if a payor pays a per diem allowance that meets the requirements of § 1.62–2(c)(1), the portion, if any, of the allowance that relates to days of travel substantiated in accordance with § 1.62–2(e), that exceeds the amount of the employee’s expenses deemed substantiated for such travel pursuant to rules prescribed under § 274(d) and § 1.274–5(g) or § 1.274–5(j), and that the employee is not required to return, is subject to withholding and payment of employment taxes. See §§ 31.3121(a)–3, 31.3231(e)–1(a)(5), 31.3306(b)–2, and 31.3401(a)–4 of the Employment Tax Regulations. Because the employee is not required to return this excess portion, the reasonable period of time provisions of § 1.62–2(g) (relating to the return of excess amounts) do not apply to this portion.

.09 Under § 1.62–2(h)(2)(i)(B)( 4 ), the Commissioner has the discretion to prescribe special rules regarding the timing of withholding and payment of employment taxes on per diem allowances.

.10 Section 1.274–5(j)(1) grants the Commissioner the authority to establish a method under which a taxpayer may elect to use a specified amount for meals paid or incurred while traveling away from home in lieu of substantiating the actual cost of meals.

.11 Section 1.274–5(j)(3) grants the Commissioner the authority to establish a method under which a taxpayer may elect to use a specified amount for incidental expenses paid or incurred while traveling away from home in lieu of substantiating the actual cost of incidental expenses.

.12 Sections 4.04(5) and 5.06 of this revenue procedure provide transition rules for the last 2 months of calendar year 2003.

.13 Section 4.05 of this revenue procedure is revised to provide a new rate for substantiating only incidental expenses for any OCONUS locality of travel.

.14 Section 5.02 of this revenue procedure contains revisions to the per diem

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