SECTION 3. DEFINITIONS — Internal Revenue Bulletin 2009-42

.01 Per diem allowance . The term “ per diem allowance” means a payment under a reimbursement or other expense allowance arrangement that is:

(1) Paid for ordinary and necessary business expenses incurred, or that the payor reasonably anticipates will be incurred, by an employee for lodging, meal, and incidental expenses, or for meal and incidental expenses, for travel away from home performing services as an employee of the employer,

(2) Reasonably calculated not to exceed the amount of the expenses or the anticipated expenses, and

(3) Paid at or below the applicable federal per diem rate, a flat rate or stated schedule, or in accordance with any other Service-specified rate or schedule.

.02 Federal per diem rate and federal M&IE rate .

(1) In general . The federal per diem rate is equal to the sum of the applicable federal lodging expense rate and the applicable federal meal and incidental expense (M&IE) rate for the day and locality of travel.

(a) CONUS rates . The rates for localities in the continental United States (“CONUS”) are set forth in Appendix A to 41 C.F.R. ch. 301. However, in applying section 4.01, 4.02, or 4.03 of this revenue procedure, taxpayers may continue to use the CONUS rates in effect for the first 9 months of 2009 for expenses of all CONUS travel away from home that are paid or incurred during calendar year 2009 in lieu of the updated GSA rates. A taxpayer must consistently use either these rates or the updated rates for the period October 1, 2009, through December 31, 2009.

subchapter B, chapter 1 of the Code, the employee pays or incurs in performing services as an employee under a reimbursement or other expense allowance arrangement with a payor.

.06 Section 62(c) provides that an arrangement is not treated as a reimbursement or other expense allowance arrangement for purposes of § 62(a)(2)(A) if it—

(1) Does not require the employee to substantiate the expenses covered by the arrangement to the payor, or

(2) Provides the employee with the right to retain any amount in excess of the substantiated expenses covered under the arrangement. Section 62(c) further provides that these substantiation requirements do not apply to any expense to the extent that, under the grant of regulatory authority in § 274(d), the Commissioner provides 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 an 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) is 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 per diem 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 days of travel substantiated and that exceeds the amount of the employee’s expenses deemed substantiated under 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 within a reasonable period of time any portion of the 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 an employee’s expenses deemed substantiated for the travel under rules prescribed under § 274(d) and § 1.274–5(g), 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 treat a specific amount as paid or incurred for meals 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 treat a specific amount as paid or incurred for incidental expenses while traveling away from home in lieu of substantiating the actual cost of incidental expenses.

.12 This revenue procedure includes modifications to Rev. Proc. 2008–59 as follows:

(1) Sections 3.02(1)(a), 4.04(6), and 5.06 provide transition rules for the last 3 months of calendar year 2009.

(2) Section 5.02 contains revisions to the per diem rates for high-cost localities and for other localities for purposes of section 5.

October 19, 2009 525 2009–42 I.R.B.

able belief that lodging expenses were or will be incurred by the employee, or (5) the allowance is computed on a basis similar to that used in computing an employee’s wages or other compensation (such as the number of hours worked, miles traveled, or pieces produced).

.03 Optional method for meal and in- cidental expenses only deduction . In lieu of using actual expenses in computing the amount allowable as a deduction for ordinary and necessary meal and incidental expenses paid or incurred for travel away from home, employees and self-employed individuals who pay or incur meal expenses may use an amount computed at the federal M&IE rate for the locality of travel for each calendar day (or partial day) the employee or self-employed individual is away from home. This amount is deemed substantiated for purposes of paragraphs (b)(2) and (c) of § 1.274–5, provided the employee or self-employed individual substantiates the elements of time, place, and business purpose of the travel for that day (or partial day) in accordance with those regulations. See section 6.05(1) of this revenue procedure for rules related to the application of the limitation under § 274(n) to amounts determined under this section 4.03. See section 4.05 of this revenue procedure for a method for substantiating incidental expenses that may be used by employees or self-employed individuals who do not pay or incur meal expenses.

.04 Special rules for transportation in- dustry .

(1) In general . This section 4.04 applies to (a) a payor that pays a per diem allowance only for meal and incidental expenses for travel away from home to an employee in the transportation industry and computes the amount under section 4.02 of this revenue procedure, or (b) an employee or self-employed individual in the transportation industry who computes the amount allowable as a deduction for meal and incidental expenses for travel away from home under section 4.03 of this revenue procedure.

(2) Transportation industry defined . For purposes of this section 4.04, an employee or self-employed individual is in the transportation industry only if the employee’s or self-employed individual’s work (a) is of the type that directly involves moving people or goods by airplane, barge, bus, ship, train, or truck, and

(b) OCONUS rates . The rates for localities outside the continental United States (“OCONUS”) are established by the Secretary of Defense (rates for non-foreign localities, including Alaska, Hawaii, Puerto Rico, the Northern Mariana Islands, and the possessions of the United States) and by the Secretary of State (rates for foreign localities), and are published in the Per Diem Supplement to the Standardized Regulations (Government Civilians, Foreign Areas) (updated on a monthly basis).

(2) Locality of travel . The term “locality of travel” means the locality where an employee traveling away from home performing services as an employee of an employer stops for sleep or rest.

(3) Incidental expenses . The term “incidental expenses” has the same meaning as in the Federal Travel Regulations, 41 C.F.R. 300–3.1 (2009). The Federal Travel Regulations currently include as incidental expenses fees and tips given to porters, baggage carriers, bellhops, hotel maids, stewards or stewardesses and others on ships, and hotel servants in foreign countries; transportation between places of lodging or business and places where meals are taken, if suitable meals can be obtained at the temporary duty site; and the mailing cost associated with filing travel vouchers and payment of employer-sponsored charge card billings.

.03 Flat rate or stated schedule . (1) In general . Except as provided in section 3.03(2) of this revenue procedure, an allowance is paid at a flat rate or stated schedule if it is provided on a uniform and objective basis for the expenses described in section 3.01 of this revenue procedure. The allowance may be paid for the number of days away from home performing services as an employee or on any other basis that is consistently applied and in accordance with reasonable business practice. Thus, for example, an hourly payment to cover meal and incidental expenses paid to a pilot or flight attendant who is traveling away from home performing services as an employee is an allowance paid at a flat rate or stated schedule. Likewise, a payment based on the number of miles traveled (such as cents per mile) to cover meal and incidental expenses paid to an over-the-road truck driver who is traveling

away from home performing services as an employee is an allowance paid at a flat rate or stated schedule.

(2) Limitation . An allowance that is computed on a basis similar to that used in computing an employee’s wages or other compensation (such as the number of hours worked, miles traveled, or pieces produced) does not meet the business connection requirement of § 1.62–2(d), is not a per diem allowance, and is not paid at a flat rate or stated schedule, unless, as of December 12, 1989, (a) the allowance was identified by the payor either by making a separate payment or by specifically identifying the amount of the allowance, or (b) an allowance computed on that basis was commonly used in the industry in which the employee performed services. See § 1.62–2(d)(3)(ii).