1.6664-2—Underpayment.

(a) Description. A charitable remainder annuity trust is a trust which complies with the applicable provisions of § 1.664-1 and meets all of the following requirements:
(1) Required payment of annuity amount— (i) Payment of sum certain at least annually. The governing instrument provides that the trust will pay a sum certain not less often than annually to a person or persons described in paragraph (a)(3) of this section for each taxable year of the period specified in paragraph (a)(5) of this section.
(a) General rule applicable to all trusts. A trust will not be deemed to have engaged in an act of self-dealing (within the meaning of section 4941 ), to have unrelated debt-financed income (within the meaning of section 514 ), to have received an additional contribution (within the meaning of paragraph (b) of this section), or to have failed to function exclusively as a charitable remainder trust (within the meaning of § 1.664-1(a)(4)) merely because the annuity amount is paid after the close of the taxable year if such payment is made within a reasonable time after the close of such taxable year and the entire annuity amount in the hands of the recipient is characterized only as income from the categories described in section 664(b)(1), (2), or (3), except to the extent it is characterized as corpus described in section 664(b)(4) because—
(1) The trust pays the annuity amount by distributing property (other than cash) that it owned at the close of the taxable year to pay the annuity amount, and the trustee elects to treat any income generated by the distribution as occurring on the last day of the taxable year in which the annuity amount is due;
(2) The trust pays the annuity amount by distributing cash that was contributed to the trust (with respect to which a deduction was allowable under section 170, 2055, 2106, or 2522 ); or
(3) The trust pays the annuity amount by distributing cash received as a return of basis in any asset that was contributed to the trust (with respect to which a deduction was allowable under section 170, 2055, 2106, or 2522 ), and that is sold by the trust during the year for which the annuity amount is due.
(b) Special rule for trusts created before December 10, 1998. In addition to the circumstances described in paragraph (a)(1)(i)(a) of this section, a trust created before December 10, 1998, will not be deemed to have engaged in an act of self-dealing (within the meaning of section 4941 ), to have unrelated debt-financed income (within the meaning of section 514 ), to have received an additional contribution (within the meaning of paragraph (b) of this section), or to have failed to function exclusively as a charitable remainder trust (within the meaning of § 1.664-1(a)(4)) merely because the annuity amount is paid after the close of the taxable year if such payment is made within a reasonable time after the close of such taxable year and the sum certain to be paid each year as the annuity amount is 15 percent or less of the initial net fair market value of the property irrevocably passing in trust as determined for federal tax purposes.
(c) Reasonable time. For this paragraph (a)(1)(i), a reasonable time will not ordinarily extend beyond the date by which the trustee is required to file Form 5227, “Split-Interest Trust Information Return,” (including extensions) for the taxable year.
(d) Example. The following example illustrates the rules in paragraph (a)(1)(i)(a) of this section:

Code of Federal Regulations

Example. X is a charitable remainder annuity trust described in section 664(d)(1) that was created after December 10, 1998. The prorated annuity amount payable from X for Year 1 is $100. The trustee does not pay the annuity amount to the recipient by the close of Year 1. At the end of Year 1, X has only $95 in the ordinary income category under section 664(b)(1) and no income in the capital gain or tax-exempt income categories under section 664(b)(2) or (3), respectively. By April 15 of Year 2, in addition to $95 in cash, the trustee distributes to the recipient of the annuity a capital asset with a $5 fair market value and a $2 adjusted basis to pay the $100 annuity amount due for Year 1. The trust owned the asset at the end of Year 1. Under § 1.664-1(d)(5) , the distribution is treated as a sale by X, resulting in X recognizing a $3 capital gain. The trustee elects to treat the capital gain as occurring on the last day of Year 1. Under § 1.664-1(d)(1) , the character of the annuity amount for Year 1 in the recipient's hands is $95 of ordinary income, $3 of capital gain income, and $2 of trust corpus. For Year 1, X satisfied paragraph (a)(1)(i)(a) of this section.
(e) Effective date. This paragraph (a)(1)(i) is applicable for taxable years ending after April 18, 1997. However, paragraphs (a)(1)(i)(a )(2) and (3) of this section apply only to distributions made on or after January 5, 2001.
(ii) Definition of sum certain. A sum certain is a stated dollar amount which is the same either as to each recipient or as to the total amount payable for each year of such period. For example, a provision for an amount which is the same every year to A until his death and concurrently an amount which is the same every year to B until his death, with the amount to each recipient to terminate at his death, would satisfy the above rule. Similarly, provisions for an amount to A and B for their joint lives and then to the survivor would satisfy the above rule. In the case of a distribution to an organization described in section 170(c) at the death of a recipient or the expiration of a term of years, the governing instrument may provide for a reduction of the stated amount payable after such a distribution: Provided, That:
(a) The reduced amount payable is the same either as to each recipient or as to the total amount payable for each year of the balance of such period, and
(b) The requirements of subparagraph (2)(ii) of this paragraph are met.
(iii) Sum certain stated as a fraction or percentage. The stated dollar amount may be expressed as a fraction or a percentage of the initial net fair market value of the property irrevocably passing in trust as finally determined for Federal tax purposes. If the stated dollar amount is so expressed and such market value is incorrectly determined by the fiduciary, the requirement of this subparagraph will be satisfied if the governing instrument provides that in such event the trust shall pay to the recipient (in the case of an undervaluation) or be repaid by the recipient (in the case of an overvaluation) an amount equal to the difference between the amount which the trust should have paid the recipient if the correct value were used and the amount which the trust actually paid the recipient. Such payments or repayments must be made within a reasonable period after the final determination of such value. Any payment due to a recipient by reason of such incorrect valuation shall be considered to be a payment required to be distributed at the time of such final determination for purposes of paragraph (d)(4)(ii) of § 1.664-1. See paragraph (d)(4) of § 1.664-1 for rules relating to the year of inclusion of such payments and the allowance of a deduction for such repayments. See paragraph (b) of this section for rules relating to future contributions. For rules relating to required adjustments for underpayments or overpayments of the amount described in this paragraph in respect of payments made during a reasonable period of administration, see paragraph (a)(5) of § 1.664-1. The application of the rule permitting the stated dollar amount to be expressed as a fraction or a percentage of the initial net fair market value of the property irrevocably passing in trust as finally determined for Federal tax purposes may be illustrated by the following example:

Code of Federal Regulations

Example. The will of X provides for the transfer of one-half of his residuary estate to a charitable remainder annuity trust which is required to pay to W for life an annuity equal to 5 percent of the initial net fair market value of the interest passing in trust as finally determined for Federal tax purposes. The annuity is to be paid on December 31 of each year computed from the date of X's death. The will also provides that if such initial net fair market value is incorrectly determined, the trust shall pay to W, in the case of an undervaluation, or be repaid by W, in the case of an overvaluation, an amount equal to the difference between the amount which the trust should have paid if the correct value were used and the amount which the trust actually paid. X dies on March 1, 1971. The executor files an estate tax return showing the value of the residuary estate as $250,000 before reduction for taxes and expenses of $50,000. The executor paid to W $4,192 ([$250,000− $50,000]×1/2×5 percent×306/365) on December 31, 1971. On January 1, 1972, the executor transfers one-half of the residue of the estate to the trust. The trust adopts the calendar year as its taxable year. The value of the residuary estate is finally determined for Federal tax purposes to be $240,000 ($290,000−$50,000). Accordingly, the amount which the executor should have paid to W is $5,030 ( [$290,000−$50,000]× 1/2×5 percent×306/365). Consequently, an additional amount of $838 ($5,030−$4,192) must be paid to W within a reasonable period after the final determination of value for Federal tax purposes.
(iv) Computation of annuity amount in certain circumstances— (a) Short taxable years. The governing instrument provides that, in the case of a taxable year which is for a period of less than 12 months other than the taxable year in which occurs the end of the period specified in subparagraph (5) of this paragraph, the annuity amount determined under subdivision (i) of this subparagraph shall be the amount otherwise determined under that subdivision multiplied by a fraction the numerator of which is the number of days in the taxable year of the trust and the denominator of which is 365 (366 if February 29 is a day included in the numerator).
(b) Last taxable year of period. The governing instrument provides that, in the case of the taxable year in which occurs the end of the period specified in subparagraph (5) of this paragraph, the annuity amount which must be distributed under subdivision (i) of this subparagraph shall be the amount otherwise determined under that subdivision multiplied by a fraction the numerator of which is the number of days in the period beginning on the first day of such taxable year and ending on the last day of the period specified in subparagraph (5) of this paragraph and the denominator of which is 365 (366 if February 29 is a day included in the numerator). See subparagraph (5) of this paragraph for a special rule allowing termination of payment of the annuity amount with the regular payment next preceding the termination of the period specified therein.
(2) Minimum annuity amount— (i) General rule. The total amount payable under subparagraph (1) of this paragraph is not less than 5 percent of the initial net fair market value of the property placed in trust as finally determined for Federal tax purposes.
(ii) Reduction of annuity amount in certain cases. A trust will not fail to meet the requirements of this subparagraph by reason of the fact that it provides for a reduction of the stated amount payable upon the death of a recipient or the expiration of a term of years provided that:
(a) A distribution is made to an organization described in section 170(c) at the death of such recipient or the expiration of such term of years, and
(b) The total amounts payable each year under subparagraph (1) of this paragraph after such distribution are not less than a stated dollar amount which bears the same ratio to 5 percent of the initial net fair market value of the trust assets as the net fair market value of the trust assets immediately after such distribution bears to the net fair market value of the trust assets immediately before such distribution.
(iii) Rule applicable to inter vivos trust which does not provide for payment of minimum annuity amount. In the case where the grantor of an inter vivos trust underestimates in good faith the initial net fair market value of the property placed in trust as finally determined for Federal tax purposes and specifies a fixed dollar amount for the annuity which is less than 5 percent of the initial net fair market value of the property placed in trust as finally determined for Federal tax purposes, the trust will be deemed to have met the 5 percent requirement if the grantor or his representative consents, by appropriate agreement with the District Director, to accept an amount equal to 20 times the annuity as the fair market value of the property placed in trust for purposes of determining the appropriate charitable contributions deduction.
(3) Permissible recipients— (i) General rule. The amount described in subparagraph (1) of this paragraph is payable to or for the use of a named person or persons, at least one of which is not an organization described in section 170(c). If the amount described in subparagraph (1) of this paragraph is to be paid to an individual or individuals, all such individuals must be living at the time of the creation of the trust. A named person or persons may include members of a named class provided that, in the case of a class which includes any individual, all such individuals must be alive and ascertainable at the time of the creation of the trust unless the period for which the annuity amount is to be paid to such class consists solely of a term of years. For example, in the case of a testamentary trust, the testator's will may provide that an amount shall be paid to his children living at his death.
(ii) Power to alter amount paid to recipients. A trust is not a charitable remainder annuity trust if any person has the power to alter the amount to be paid to any named person other than an organization described in section 170(c) if such power would cause any person to be treated as the owner of the trust, or any portion thereof, if subpart E, part 1, subchapter J, chapter 1, subtitle A of the Code were applicable to such trust. See paragraph (a)(4) of this section for a rule permitting the retention by a grantor of a testamentary power to revoke or terminate the interest of any recipient other than an organization described in section 170(c). For example, the governing instrument may not grant the trustee the power to allocate the annuity among members of a class unless such power falls within one of the exceptions to section 674(a).
(4) Other payments. No amount other than the amount described in subparagraph (1) of this paragraph may be paid to or for the use of any person other than an organization described in section 170(c). An amount is not paid to or for the use of any person other than an organization described in section 170(c) if the amount is transferred for full and adequate consideration. The trust may not be subject to a power to invade, alter, amend, or revoke for the beneficial use of a person other than an organization described in section 170(c). Notwithstanding the preceding sentence, the grantor may retain the power exercisable only by will to revoke or terminate the interest of any recipient other than an organization described in section 170(c). The governing instrument may provide that any amount other than the amount described in subparagraph (1) of this paragraph shall be paid (or may be paid in the discretion of the trustee) to an organization described in section 170(c) provided that in the case of distributions in kind, the adjusted basis of the property distributed is fairly representative of the adjusted basis of the property available for payment on the date of payment. For example, the governing instrument may provide that a portion of the trust assets may be distributed currently, or upon the death of one or more recipients, to an organization described in section 170(c).
(5) Period of payment of annuity amount— (i) General rules. The period for which an amount described in subparagraph (1) of this paragraph is payable begins with the first year of the charitable remainder trust and continues either for the life or lives of a named individual or individuals or for a term of years not to exceed 20 years. Only an individual or an organization described in section 170(c) may receive an amount for the life of an individual. If an individual receives an amount for life, it must be solely for his life. Payment of the amount described in subparagraph (1) of this paragraph may terminate with the regular payment next preceding the termination of the period described in this subparagraph. The fact that the recipient may not receive such last payment shall not be taken into account for purposes of determining the present value of the remainder interest. In the case of an amount payable for a term of years, the length of the term of years shall be ascertainable with certainty at the time of the creation of the trust, except that the term may be terminated by the death of the recipient or by the grantor's exercise by will of a retained power to revoke or terminate the interest of any recipient other than an organization described in section 170(c). In any event, the period may not extend beyond either the life or lives of a named individual or individuals or a term of years not to exceed 20 years. For example, the governing instrument may not provide for the payment of an annuity amount to A for his life and then to B for a term of years because it is possible for the period to last longer than either the lives of recipients in being at the creation of the trust or a term of years not to exceed 20 years. On the other hand, the governing instrument may provide for the payment of an annuity amount to A for his life and then to B for his life or a term of years (not to exceed 20 years), whichever is shorter (but not longer), if both A and B are in being at the creation of the trust because it is not possible for the period to last longer than the lives of recipients in being at the creation of the trust.
(ii) Relationship to 5 percent requirement. The 5 percent requirement provided in subparagraph (2) of this paragraph must be met until the termination of all of the payments described in subparagraph (1) of this paragraph. For example, the following provisions would satisfy the above rules:
(a) An amount equal to at least 5 percent of the initial net fair market value of the property placed in trust to A and B for their joint lives and then to the survivor for his life;
(b) An amount equal to at least 5 percent of the initial net fair market value of the property placed in trust to A for life or for a term of years not longer than 20 years, whichever is longer (or shorter);
(c) An amount equal to at least 5 percent of the initial net fair market value of the property placed in trust to A for a term of years not longer than 20 years and then to B for life (provided B was living at the date of creation of the trust);
(d) An amount to A for his life and concurrently an amount to B for his life (the amount to each recipient to terminate at his death) if the amount given to each individual is not less than 5 percent of the initial net fair market value of the property placed in trust; or
(e) An amount to A for his life and concurrently an equal amount to B for his life, and at the death of the first to die, the trust to distribute one-half of the then value of its assets to an organization described in section 170(c), if the total of the amounts given to A and B is not less than 5 percent of the initial net fair market value of the property placed in trust.
(6) Permissible remaindermen— (i) General rule. At the end of the period specified in subparagraph (5) of this paragraph the entire corpus of the trust is required to be irrevocably transferred, in whole or in part, to or for the use of one or more organizations described in section 170(c) or retained, in whole or in part, for such use.
(ii) Treatment of trust. If all of the trust corpus is to be retained for such use, the taxable year of the trust shall terminate at the end of the period specified in subparagraph (5) of this paragraph and the trust shall cease to be treated as a charitable remainder trust for all purposes. If all or any portion of the trust corpus is to be transferred to or for the use of such organization or organizations, the trustee shall have a reasonable time after the period specified in subparagraph (5) of this paragraph to complete the settlement of the trust. During such time, the trust shall continue to be treated as a charitable remainder trust for all purposes, such as sections 664, 4947(a)(2), and 4947(b)(3)(B). Upon the expiration of such period, the taxable year of the trust shall terminate and the trust shall cease to be treated as a charitable remainder trust for all purposes. If the trust continues in existence, it will be subject to the provisions of section 4947(a)(1) unless the trust is exempt from taxation under section 501(a). For purposes of determining whether the trust is exempt under section 501(a) as an organization described in section 501(c)(3), the trust shall be deemed to have been created at the time it ceases to be treated as a charitable remainder trust.
(iii) Concurrent or successive remaindermen. Where interests in the corpus of the trust are given to more than one organization described in section 170(c) such interests may be enjoyed by them either concurrently or successively.
(iv) Alternative remaindermen. The governing instrument shall provide that if an organization to or for the use of which the trust corpus is to be transferred or for the use of which the trust corpus is to be retained is not an organization described in section 170(c) at the time any amount is to be irrevocably transferred to or for the use of such organization, such amount shall be transferred to or for the use of one or more alternative organizations which are described in section 170(c) at such time or retained for such use. Such alternative organization or organizations may be selected in any manner provided by the terms of the governing instrument.
(b) Additional contributions. A trust is not a charitable remainder annuity trust unless its governing instrument provides that no additional contributions may be made to the charitable remainder annuity trust after the initial contribution. For purposes of this section, all property passing to a charitable remainder annuity trust by reason of death of the grantor shall be considered one contribution.
(c) Calculation of the fair market value of the remainder interest of a charitable remainder annuity trust. For purposes of sections 170, 2055, 2106, and 2522, the fair market value of the remainder interest of a charitable remainder annuity trust (as described in this section) is the net fair market value (as of the appropriate valuation date) of the property placed in trust less the present value of the annuity. For purposes of this section, valuation date means, in general, the date on which the property is transferred to the trust by the donor regardless of when the trust is created. In the case of transfers to a charitable remainder annuity trust for which the valuation date is after April 30, 1999, if an election is made under section 7520 and § 1.7520-2(b) to compute the present value of the charitable interest by use of the interest rate component for either of the 2 months preceding the month in which the transfer is made, the month so elected is the valuation date for purposes of determining the interest rate and mortality tables. For purposes of section 2055 or 2106, the valuation date is the date of death unless the alternate valuation date is elected in accordance with section 2032 in which event, and within the limitations set forth in section 2032 and the regulations thereunder, the valuation date is the alternate valuation date. If the decedent's estate elects the alternate valuation date under section 2032 and also elects, under section 7520 and § 1.7520-2(b), to use the interest rate component for one of the 2 months preceding the alternate valuation date, the month so elected is the valuation date for purposes of determining the interest rate and mortality tables. The present value of an annuity is computed under § 20.2031-7T(d) for transfers for which the valuation date is on or after May 1, 2009, or under § 20.2031-7A(a) through (f), whichever is applicable, for transfers for which the valuation date is before May 1, 2009. See, however, § 1.7520-3(b) (relating to exceptions to the use of prescribed tables under certain circumstances).
(d) Deduction for transfers to a charitable remainder annuity trust. For rules relating to a deduction for transfers to a charitable remainder annuity trust, see section 170, 2055, 2106, or 2522 and the regulations thereunder. Any claim for deduction on any return for the value of a remainder interest in a charitable remainder annuity trust must be supported by a full statement attached to the return showing the computation of the present value of such interest. The deduction allowed by section 170 is limited to the fair market value of the remainder interest of a charitable remainder annuity trust regardless of whether an organization described in section 170(c) also receives a portion of the annuity. For a special rule relating to the reduction of the amount of a charitable contribution deduction with respect to a contribution of certain ordinary income property or capital gain property, see section 170(e)(1)(A) or 170(e)(1)(B)(i) and the regulations thereunder. For rules for postponing the time for deduction of a charitable contribution of a future interest in tangible personal property, see section 170(a)(3) and the regulations thereunder.
(e) Effective/applicability date. Paragraph (c)(1) applies after April 30, 1989.

Code of Federal Regulations

[T.D. 7202, 37 FR 16918, Aug. 23, 1972, as amended by T.D. 7955, 49 FR 19983, May 11, 1984; T.D. 8540, 59 FR 30116, June 10, 1994; T.D. 8791, 63 FR 68191, Dec. 10, 1998; T.D. 8819, 64 FR 23229, Apr. 30, 1999; T.D. 8819, Mar. 9, 2000, 65 FR 12471; T.D. 8926, 66 FR 1037, Jan. 5, 2001; T.D. 9448, 74 FR 21464, May 7, 2009]
(a) Underpayment defined. In the case of income taxes imposed under subtitle A, an underpayment for purposes of section 6662, relating to the accuracy-related penalty, and section 6663, relating to the fraud penalty, means the amount by which any income tax imposed under this subtitle (as defined in paragraph (b) of the section) exceeds the excess of—
(1) The sum of—
(i) The amount shown as the tax by the taxpayer on his return (as defined in paragraph (c) of this section), plus
(ii) Amounts not so shown previously assessed (or collected without assessment) (as defined in paragraph (d) of this section), over
(2) The amount of rebates made (as defined in paragraph (e) of this section).
The definition of underpayment also may be expressed as—
Underpayment=W−(X Y−Z),
where W=the amount of income tax imposed; X=the amount shown as the tax by the taxpayer on his return; Y=amounts not so shown previously assessed (or collected without assessment); and Z=the amount of rebates made.
(b) Amount of income tax imposed. For purposes of paragraph (a) of this section, the “amount of income tax imposed” is the amount of tax imposed on the taxpayer under subtitle A for the taxable year, determined without regard to—
(1) The credits for tax withheld under sections 31 (relating to tax withheld on wages) and 33 (relating to tax withheld at source on nonresident aliens and foreign corporations);
(2) Payments of tax or estimated tax by the taxpayer;
(3) Any credit resulting from the collection of amounts assessed under section 6851 as the result of a termination assessment, or section 6861 as the result of a jeopardy assessment; and
(4) Any tax that the taxpayer is not required to assess on the return (such as the tax imposed by section 531 on the accumulated taxable income of a corporation).
(c) Amount shown as the tax by the taxpayer on his return— (1) Defined. For purposes of paragraph (a) of this section, the amount shown as the tax by the taxpayer on his return is the tax liability shown by the taxpayer on his return, determined without regard to the items listed in paragraphs (b)(1), (2), and (3) of this section, except that it is reduced by the excess of—
(i) The amounts shown by the taxpayer on his return as credits for tax withheld under section 31 (relating to tax withheld on wages) and section 33 (relating to tax withheld at source on nonresident aliens and foreign corporations), as payments of estimated tax, or as any other payments made by the taxpayer with respect to a taxable year before filing the return for such taxable year, over
(ii) The amounts actually withheld, actually paid as estimated tax, or actually paid with respect to a taxable year before the return is filed for such taxable year.
(2) Effect of qualified amended return. The amount shown as the tax by the taxpayer on his return includes an amount shown as additional tax on a qualified amended return (as defined in paragraph (c)(3) of this section), except that such amount is not included if it relates to a fraudulent position on the original return.
(3) Qualified amended return defined— (i) General rule. A qualified amended return is an amended return, or a timely request for an administrative adjustment under section 6227, filed after the due date of the return for the taxable year (determined with regard to extensions of time to file) and before the earliest of—
(A) The date the taxpayer is first contacted by the Internal Revenue Service (IRS) concerning any examination (including a criminal investigation) with respect to the return;
(B) The date any person is first contacted by the IRS concerning an examination of that person under section 6700 (relating to the penalty for promoting abusive tax shelters) for an activity with respect to which the taxpayer claimed any tax benefit on the return directly or indirectly through the entity, plan or arrangement described in section 6700(a)(1)(A) ;
(C) In the case of a pass-through item (as defined in § 1.6662-4(f)(5) ), the date the pass-through entity (as defined in § 1.6662-4(f)(5)) is first contacted by the IRS in connection with an examination of the return to which the pass-through item relates;
(D) (1) The date on which the IRS serves a summons described in section 7609(f) relating to the tax liability of a person, group, or class that includes the taxpayer (or pass-through entity of which the taxpayer is a partner, shareholder, beneficiary, or holder of a residual interest in a REMIC) with respect to an activity for which the taxpayer claimed any tax benefit on the return directly or indirectly.
(2) The rule in paragraph (c)(3)(i)(D)(1) of this section applies to any return on which the taxpayer claimed a direct or indirect tax benefit from the type of activity that is the subject of the summons, regardless of whether the summons seeks the production of information for the taxable period covered by such return; and
(E) The date on which the Commissioner announces by revenue ruling, revenue procedure, notice, or announcement, to be published in the Internal Revenue Bulletin (see § 601.601(d)(2) of this chapter ), a settlement initiative to compromise or waive penalties, in whole or in part, with respect to a listed transaction. This rule applies only to a taxpayer who participated in the listed transaction and for the taxable year(s) in which the taxpayer claimed any direct or indirect tax benefits from the listed transaction. The Commissioner may waive the requirements of this paragraph or identify a later date by which a taxpayer who participated in the listed transaction must file a qualified amended return in the published guidance announcing the listed transaction settlement initiative.
(ii) Undisclosed listed transactions. An undisclosed listed transaction is a transaction that is the same as, or substantially similar to, a listed transaction within the meaning of § 1.6011-4(b)(2) (regardless of whether § 1.6011-4 requires the taxpayer to disclose the transaction) and was neither previously disclosed by the taxpayer within the meaning of § 1.6011-4 or § 1.6011-4T, nor disclosed under Announcement 2002-2 (2002-1 C.B. 304), (see § 601.601(d)(2)(ii) of this chapter) by the deadline therein. In the case of an undisclosed listed transaction for which a taxpayer claims any direct or indirect tax benefits on its return (regardless of whether the transaction was a listed transaction at the time the return was filed), an amended return or request for administrative adjustment under section 6227 will not be a qualified amended return if filed on or after the earliest of—
(A) The dates described in paragraph (c)(3)(i) of this section;
(B) The date on which the IRS first contacts any person regarding an examination of that person's liability under section 6707(a) with respect to the undisclosed listed transaction of the taxpayer; or
(C) The date on which the IRS requests, from any person who made a tax statement to or for the benefit of the taxpayer or from any person who gave the taxpayer material aid, assistance, or advice as described in section 6111(b)(1)(A)(i) with respect to the taxpayer, the information required to be included on a list under section 6112 relating to a transaction that was the same as, or substantially similar to, the undisclosed listed transaction, regardless of whether the taxpayer's information is required to be included on that list.
(4) Special rules. (i) A qualified amended return includes an amended return that is filed to disclose information pursuant to § 1.6662-3(c) or § 1.6662-4(e) and (f) even though it does not report any additional tax liability. See § 1.6662-3(c), § 1.6662-4(f), and § 1.6664-4(c) for rules relating to adequate disclosure.
(ii) The Commissioner may by revenue procedure prescribe the manner in which the rules of paragraph (c) of this section regarding qualified amended returns apply to particular classes of taxpayers.
(5) Examples. The following examples illustrate the provisions of paragraphs (c)(3) and (c)(4) of this section:

Code of Federal Regulations

Example 1. T, an individual taxpayer, claimed tax benefits on its 2002 Federal income tax return from a transaction that is substantially similar to the transaction identified as a listed transaction in Notice 2002-65, 2002-2 C.B. 690 (Partnership Entity Straddle Tax Shelter). T did not disclose his participation in this transaction on a Form 8886, “Reportable Transaction Disclosure Statement,” as required by § 1.6011-4 . On June 30, 2004, the IRS requested from P, T's material advisor, an investor list required to be maintained under section 6112. The section 6112 request, however, related to the type of transaction described in Notice 2003-81, 2003-2 C.B. 1223 (Tax Avoidance Using Offsetting Foreign Currency Option Contracts). T did not participate in (within the meaning of § 1.6011-4(c) ) a transaction described in Notice 2003-81. T may file a qualified amended return relating to the transaction described in Notice 2002-65 because T did not claim a tax benefit with respect to the listed transaction described in Notice 2003-81, which is the subject of the section 6112 request.

Code of Federal Regulations

Example 2. The facts are the same as in Example 1, except that T's 2002 Federal income tax return reflected T's participation in the transaction described in Notice 2003-81. As of June 30, 2004, T may not file a qualified amended return for the 2002 tax year.

Code of Federal Regulations

Example 3. (i) Corporation X claimed tax benefits from a transaction on its 2002 Federal income tax return. In October 2004, the IRS and Treasury Department identified the transaction as a listed transaction. In December 2004, the IRS contacted P concerning an examination of P's liability under section 6707(a) (as in effect prior to the amendment to section 6707 by section 816 of the American Jobs Creation Act of 2004 (the Jobs Act), Public Law 108-357 (118 Stat. 1418)). P is the organizer of a section 6111 tax shelter (as in effect prior to the amendment to section 6111 by section 815 of the Jobs Act) who provided representations to X regarding tax benefits from the transaction, and the IRS has contacted P about the failure to register that transaction. Three days later, X filed an amended return.
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(ii) X's amended return is not a qualified amended return, because X did not disclose the transaction before the IRS contacted P. X's amended return would have been a qualified amended return if it was submitted prior to the date on which the IRS contacted P.

Code of Federal Regulations

Example 4. The facts are the same as in Example 3 except that, instead of contacting P concerning an examination under section 6707(a), in December 2004, the IRS served P with a John Doe summons described in section 7609(f) relating to the tax liability of participants in the type of transaction for which X claimed tax benefits on its return. X cannot file a qualified amended return after the John Doe summons has been served regardless of when, or whether, the transaction becomes a listed transaction.

Code of Federal Regulations

Example 5. On November 30, 2003, the IRS served a John Doe summons described in section 7609(f) on Corporation Y, a credit card company. The summons requested the identity of, and information concerning, United States taxpayers who, during the taxable years 2001 and 2002, had signature authority over Corporation Y's credit cards issued by, through, or on behalf of certain offshore financial institutions. Corporation Y complied with the summons, and identified, among others, Taxpayer B. On May 31, 2004, before the IRS first contacted Taxpayer B concerning an examination of Taxpayer B's Federal income tax return for the taxable year 2002, Taxpayer B filed an amended return for that taxable year, that showed an increase in Taxpayer B's Federal income tax liability. Under paragraph (c)(3)(i)(D) of this section, the amended return is not a qualified amended return because it was not filed before the John Doe summons was served on Corporation Y.

Code of Federal Regulations

Example 6. The facts are the same as in Example 5. Taxpayer B continued to maintain the offshore credit card account through 2003 and filed an original tax return for the 2003 taxable year claiming tax benefits attributable to the existence of the account. On March 21, 2005, Taxpayer B filed an amended return for the taxable year 2003, that showed an increase in Taxpayer B's Federal income tax liability. Under paragraph (c)(3)(i)(D) of this section, the amended return is not a qualified amended return because it was not filed before the John Doe summons for 2001 and 2002 was served on Corporation Y, and the return reflects benefits from the type of activity that is the subject of the John Doe summons.

Code of Federal Regulations

Example 7. (i) On November 30, 2003, the IRS served a John Doe summons described in section 7609(f) on Corporation Y, a credit card company. The summons requested the identity of, and information concerning, United States taxpayers who, during the taxable years 2001 and 2002, had signature authority over Corporation Y's credit cards issued by, through, or on behalf of certain offshore financial institutions. Taxpayer C did not have signature authority over any of Corporation Y's credit cards during either 2001 or 2002 and, therefore, was not a person described in the John Doe summons. (ii) In 2003, Taxpayer C first acquired signature authority over a Corporation Y credit card issued by an offshore financial institution. Because Taxpayer C did not have signature authority during 2001 or 2002 over a Corporation Y credit card issued by an offshore financial institution, and was therefore not covered by the John Doe summons served on November 30, 2003, Taxpayer C's ability to file a qualified amended return for the 2003 taxable year is not limited by paragraph (c)(3)(i)(D) of this section.
(d) Amounts not so shown previously assessed (or collected without assessment). For purposes of paragraph (a) of this section, “amounts not so shown previously assessed” means only amounts assessed before the return is filed that were not shown on the return, such as termination assessments under section 6851 and jeopardy assessments under section 6861 made prior to the filing of the return for the taxable year. For purposes of paragraph (a) of this section, the amount “collected without assessment” is the amount by which the total of the credits allowable under section 31 (relating to tax withheld on wages) and section 33 (relating to tax withheld at source on nonresident aliens and foreign corporations), estimated tax payments, and other payments in satisfaction of tax liability made before the return is filed, exceed the tax shown on the return (provided such excess has not been refunded or allowed as a credit to the taxpayer).
(e) Rebates. The term “rebate” means so much of an abatement credit, refund or other repayment, as was made on the ground that the tax imposed was less than the excess of—
(1) The sum of—
(i) The amount shown as the tax by the taxpayer on his return, plus
(ii) Amounts not so shown previously assessed (or collected without assessment), over
(2) Rebates previously made.
(f) Underpayments for certain carryback years not reduced by amount of carrybacks. The amount of an underpayment for a taxable year that is attributable to conduct proscribed by sections 6662 or 6663 is not reduced on account of a carryback of a loss, deduction or credit to that year. Such conduct includes negligence or disregard of rules or regulations; a substantial understatement of income tax; and a substantial (or gross) valuation misstatement under chapter 1, provided that the applicable dollar limitation is satisfied for the carryback year.
(g) Examples. The following examples illustrate this section:

Code of Federal Regulations

Example 1. Taxpayer's 1990 return showed a tax liability of $18,000. Taxpayer had no amounts previously assessed (or collected without assessment) and received no rebates of tax. Taxpayer claimed a credit in the amount of $23,000 for income tax withheld under section 3402, which resulted in a refund received of $5,000. It is later determined that the taxpayer should have reported additional income and that the correct tax for the taxable year is $25,500. There is an underpayment of $7,500, determined as follows:
Tax imposed under subtitle A $25,500
Tax shown on return $18,000
Tax previously assessed (or collected without assessment) None
Amount of rebates made None
Balance $18,000
Underpayment $7,500

Code of Federal Regulations

Example 2. The facts are the same as in Example 1 except that the taxpayer failed to claim on the return a credit of $1,500 for income tax withheld. This $1,500 constitutes an amount collected without assessment as defined in paragraph (d) of this section. The underpayment is $6,000, determined as follows:
Tax imposed under subtitle A $25,500
Tax shown on return $18,000
Tax previously assessed (or collected without assessment) 1,500
Amount of rebates made None
Balance $19,500
Underpayment