SEC. 4. PROCEDURE
Internal Revenue Bulletin 2001-2 · 2026-10-03 edition · updated 2026-10-04 · United States
.01 Additional disclosure of facts relevant to, or positions taken with respect to, issues involving any of the items set forth below is unnecessary for purposes of reducing any understatement of income tax under § 6662(d) provided that the forms and attachments are completed in a clear manner and in accordance with their instructions. The money amounts entered on the forms must be verifiable, and the information on the return must be disclosed in the manner described below. For purposes of this revenue procedure, a number is verifiable if, on audit, the taxpayer can demonstrate the origin of the number (even if that number is not ultimately accepted by the Internal Revenue Service) and the taxpayer can show good faith in entering that number on the applicable form.
(1) Form 1040, Schedule A, Itemized Deductions:
(a) Medical and Dental Expenses: Complete lines 1 through 4, supplying all required information.
(b) Taxes: Complete lines 5 through 9, supplying all required information. Line 8 must list each type of tax and the amount paid.
(c) Interest Expense: Complete lines 10 through 14, supplying all required information. This section 4.01(1)(c) does not apply to (i) amounts disallowed under § 163(d) unless Form 4952, Investment Interest Expense Deduc- tion, is completed, or (ii) amounts disallowed under § 265.
(d) Contributions: Complete lines 15 through 18, supplying all required information. Merely entering the amount of the donation on Schedule A, however, will not constitute adequate disclosure if the taxpayer receives a substantial benefit from the donation shown. If a contribution of property other than cash is made
and the amount claimed as a deduction exceeds $500, a properly completed Form 8283, Noncash Charitable Contributions, must be attached to the return. This section 4.01(1)(d) will not apply to any contribution of $250 or more unless the contemporaneous written acknowledgment requirement of § 170(f)(8) is satisfied.
(e) Casualty and Theft Losses: Complete Form 4684, Casualties and Thefts, and attach to the return. Each item or article for which a casualty or theft loss is claimed must be listed on Form 4684.
(2) Certain Trade or Business Expenses (including, for purposes of this section 4.01(2), the following six expenses as they relate to the rental of property):
(a) Casualty and Theft Losses: The procedure outlined in section 4.01(1)(e) above must be followed.
(b) Legal Expenses: The amount claimed must be stated. This section 4.01(2)(b) does not apply, however, to amounts properly characterized as capital expenditures, personal expenses, or nondeductible lobbying or political expenditures, including amounts that are required to be (or that are) amortized over a period of years.
(c) Specific Bad Debt Charge-off: The amount written off must be stated.
(d) Reasonableness of Officers’Compensation: Form 1120, Schedule E, Com- pensation of Officers, must be completed when required by its instructions. The time devoted to business must be expressed as a percentage as opposed to “part” or “as needed.” This section 4.01(2)(d) does not apply to “golden parachute” payments, as defined under § 280G. This section 4.01(2)(d) will not apply to the extent that remuneration paid or incurred exceeds the $1 million-employee-remuneration limitation, if applicable.
(e) Repair Expenses: The amount claimed must be stated. This section 4.01(2)(e) does not apply, however, to any repair expenses properly characterized as capital expenditures or personal expenses.
(f) Taxes (other than foreign taxes): The amount claimed must be stated.
(3) Form 1120, Schedule M-1, Recon- ciliation of Income (Loss) per Books With Income per Return, provided:
(a) The amount of the deviation from the financial books and records is not the result of a computation that includes the netting of items; and
(b) The information provided reasonably may be expected to apprise the Internal Revenue Service of the nature of the potential controversy concerning the tax treatment of the item.
(4) Foreign Tax Items:
(a) International Boycott Transactions: Transactions disclosed on Form 5713, International Boycott Report . (b) Treaty-Based Return Position: Transactions and amounts under § 6114 or § 7701(b) as disclosed on Form 8833, Treaty-Based Return Position Disclosure .
(5) Other:
(a) Moving Expenses: Complete Form 3903, Moving Expenses, and attach to the return.
(b) Employee Business Expenses: Complete Form 2106, Employee Business Expenses, or Form 2106-EZ, Unreim_bursed Employee Business Expenses_, and attach to the return. This section 4.01(5)(b) does not apply to club dues, or to travel expenses for any non-employee accompanying the taxpayer on the trip.
(c) Fuels Credit: Complete Form 4136, Credit for Federal Tax Paid on Fuels, and attach to the return.
(d) Investment Credit: Complete Form 3468, Investment Credit, and attach to the return.
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