SECTION 1. PURPOSE
Internal Revenue Bulletin 2012-51 · 2026-10-03 edition · updated 2026-10-04 · United States
This revenue procedure updates Rev. Proc. 2012–15, 2012–7 I.R.B. 369, and identifies circumstances under which the disclosure on a taxpayer’s income tax return with respect to an item or a position is adequate for the purpose of reducing the understatement of income tax under section 6662(d) of the Internal Revenue Code (relating to the substantial understatement aspect of the accuracy-related penalty), and for the purpose of avoiding the tax return preparer penalty under section 6694(a) (relating to understatements due to unreasonable positions) with respect to income tax returns. This revenue procedure does not apply with respect to any other penalty provisions (including the disregard provisions of the section 6662(b)(1) accuracy-related penalty, the section 6662(i) increased accuracy-related penalty in the case of nondisclosed noneconomic substance transactions, and the section 6662(j) increased accuracy-related penalty in the case of undisclosed foreign financial asset understatements). If this revenue procedure does not include an item, disclosure is adequate with respect to that item only if made on a properly completed Form 8275 or 8275–R, as appropriate, attached to the return for the year or to a qualified amended return.
This revenue procedure applies to any income tax return filed on 2012 tax forms for a taxable year beginning in 2012, and to any income tax return filed on 2012 tax forms in 2013 for short taxable years beginning in 2013.
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item (such as on an unnamed line under an “Other Expense” category), the taxpayer must clearly identify the item by including the description on that line. For example, to disclose a bad debt for a sole proprietorship, the words “bad debt” must be written or typed on the line of Schedule C that shows the amount of the bad debt. Also, for Schedule M–3 (Form 1120), Part II, line 25, Other income (loss) items with differences, or Part III, line 37, Other expense/deduction items with differences, the entry must provide descriptive language; for example, “Cost of non-compete agreement deductible not capitalizable.” If space limitations on a form do not allow for an adequate description, the description must be continued on an attachment.
(5) Although a taxpayer may literally meet the disclosure requirements of this revenue procedure, the disclosure will have no effect for purposes of the section 6662 accuracy-related penalty if the item or position on the return: (1) does not have a reasonable basis as defined in Treas. Reg. § 1.6662–3(b)(3); (2) is attributable to a tax shelter item as defined in section 6662(d)(2); or (3) is not properly substantiated or the taxpayer failed to keep adequate books and records with respect to the item or position.
(6) Disclosure also will have no effect for purposes of the section 6694(a) penalty as applicable to tax return preparers if the position is with respect to a tax shelter (as defined in section 6662(d)(2)(C)(ii)) or a reportable transaction to which section 6662A applies.
.02 Items
(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 Expenses: Complete lines 10 through 15, supplying all required information. This section 4.02(1)(c) does not apply to (i) amounts disallowed under section 163(d) unless Form 4952, Invest- ment Interest Expense Deduction, is completed, or (ii) amounts disallowed under section 265.
an understatement of liability due to an “unreasonable position” if the tax return preparer knew (or reasonably should have known) of the position. A position (other than a position with respect to a tax shelter or a reportable transaction to which section 6662A applies) is generally treated as unreasonable unless (i) there is or was substantial authority for the position, or (ii) the position was properly disclosed in accordance with section 6662(d)(2)(B)(ii)(I) and had a reasonable basis. If the position is with respect to a tax shelter (as defined in section 6662(d)(2)(C)(ii)) or a reportable transaction to which section 6662A applies, the position is treated as unreasonable unless it is reasonable to believe that the position would more likely than not be sustained on the merits. See Notice 2009–5, 2009–3 I.R.B. 309 (January 21, 2009), for interim penalty compliance rules for tax shelter transactions.
.05 In general, this revenue procedure provides guidance for determining when disclosure by return is adequate for purposes of section 6662(d)(2)(B)(ii) and section 6694(a)(2)(B). For purposes of this revenue procedure, the taxpayer must furnish all required information in accordance with the applicable forms and instructions, and the money amounts entered on these forms must be verifiable.
.06 Fiscal and short tax year returns. (a) In general. This revenue procedure may apply to a return for a fiscal tax year that begins in 2012 and ends in 2013. This revenue procedure may also apply to a short year return for a period beginning in 2013 if the return is to be filed before the 2013 forms are available. (Note that individuals are generally not put in this position, as the only situation in which a short year arises is when filing a decedent’s final return for a fractional part of a year, which is due the fifteenth day of the fourth month following the close of the 12-month period that began with the first day of such fractional part of the year (after the 2013 form is available). See Treas. Reg. § 1.6072–1(b).) In the case of fiscal year and short year returns, the taxpayer must take into account any tax law changes that are effective for tax years beginning after December 31, 2012, even though these changes are not reflected on the form.
(b) Tax law changes effective after December 31, 2012. This document does
not take into account the effect of tax law changes effective for tax years beginning after December 31, 2012. If a line referenced in this revenue procedure is affected by such a change and requires additional reporting, a taxpayer may have to file Form 8275, Disclosure Statement, or Form 8275–R, Regulation Disclosure Statement, until the Service prescribes criteria for complying with the requirement.
.07 A complete and accurate disclosure of a tax position on the appropriate year’s Schedule UTP, Uncertain Tax Po- sition Statement, will be treated as if the corporation filed a Form 8275 or Form 8275–R regarding the tax position. The filing of a Form 8275 or Form 8275–R, however, will not be treated as if the corporation filed a Schedule UTP.
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