SECTION 4. PROCEDURE
Internal Revenue Bulletin 1999-46 · 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 Deduction, 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
(a) International Boycott Transactions: Transactions disclosed on Form 5713, International Boycott Report. (b) Intercompany Transactions: Transactions and amounts shown on Schedule M (Form 5471), Transactions Between Controlled Foreign Corporation and Shareholders or Other Related Persons, lines 19 and 20; and Form 5472,
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, Compensation 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-employeeremuneration 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, Reconciliation 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:
1999–46 I.R.B. 567 November 15, 1999
able year beginning in 1999, and to any return filed on 1999 tax forms in 2000 for short taxable years beginning in 2000.
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