26 U.S.C. § 436 — Funding-based limits on benefits and ben-

Page 1542 TITLE 26—INTERNAL REVENUE CODE § 436 plan’s funded percentage as of the beginning of the plan year. (5) Definitions For purposes of this subsection— (A) Funding restoration status A CSEC plan shall be treated as in funding restoration status for a plan year if the plan’s funded percentage as of the beginning of such plan year is less than 80 percent. (B) Funded percentage The term ‘‘funded percentage’’ means the ratio (expressed as a percentage) which— (i) the value of plan assets (as deter- mined under subsection (c)(2)), bears to (ii) the plan’s funding liability. (C) Funding liability The term ‘‘funding liability’’ for a plan year means the present value of all benefits accrued or earned under the plan as of the beginning of the plan year, based on the as- sumptions used by the plan pursuant to this section, including the interest rate described in subsection (b)(5)(A) (without regard to subsection (b)(5)(B)). (D) Spread gain funding method The term ‘‘spread gain funding method’’ has the meaning given such term under rules and forms issued by the Secretary. (E) Plan sponsor The term ‘‘plan sponsor’’ means, with re- spect to a CSEC plan, the association, com- mittee, joint board of trustees, or other similar group of representatives of the par- ties who establish or maintain the plan. (Added Pub. L. 113–97, title II, § 202(a), Apr. 7, 2014, 128 Stat. 1122; amended Pub. L. 115–141, div. U, title IV, § 401(a)(108), (109)(A), Mar. 23, 2018, 132 Stat. 1189.) Editorial Notes REFERENCES IN TEXT Section 412 (as in effect on the day before the enact- ment of the Pension Protection Act of 2006), referred to in subsecs. (b)(2)(E), (c)(2)(B), (5)(A), and (f)(5)(B), means section 412 of this title as in effect on the day before the enactment of Pub. L. 109–280, which was ap- proved Aug. 17, 2006. Section 111(a) of Pub. L. 109–280 generally amended section 412. Section 104 of the Pension Protection Act of 2006, re- ferred to in subsec. (b)(6), is section 104 of Pub. L. 109–280, which is set out as a note under section 401 of this title. The Social Security Act, referred to in subsecs. (c)(4)(A) and (h)(3)(C)(ii), is act Aug. 14, 1935, ch. 531, 49 Stat. 620, which is classified generally to chapter 7 (§ 301 et seq.) of Title 42, The Public Health and Welfare. Title II of the Act is classified generally to subchapter II (§ 401 et seq.) of chapter 7 of Title 42. For complete classification of this Act to the Code, see section 1305 of Title 42 and Tables. The Employee Retirement Income Security Act of 1974, referred to in subsecs. (c)(5)(C)(ii)(II), (d), and (g)(2), (4)(C), is Pub. L. 93–406, Sept. 2, 1974, 88 Stat. 829, which is classified principally to chapter 18 (§ 1001 et seq.) of Title 29, Labor. Title IV of the Act is classified principally to subchapter III (§ 1301 et seq.) of chapter 18 of Title 29. Sections 4001, 4006, 4021, and 4068 of the Act are classified to sections 1301, 1306, 1321, and 1368 of Title 29, respectively. For complete classification of this Act to the Code, see Short Title note set out under section 1001 of Title 29 and Tables. The date of the enactment of the Retirement Protec- tion Act of 1994, referred to in subsec. (g)(2), is the date of enactment of subtitle F of title VII of Pub. L. 103–465, which was approved Dec. 8, 1994. AMENDMENTS 2018—Pub. L. 115–141, § 401(a)(109)(A), inserted ‘‘for CSEC plans’’ after ‘‘funding standards’’ in section catchline. Subsec. (c)(5)(C)(ii)(II). Pub. L. 115–141, § 401(a)(108), inserted ‘‘of such Act’’ after ‘‘title IV’’. Statutory Notes and Related Subsidiaries EFFECTIVE DATE Section applicable to years beginning after Dec. 31, 2013, see section 3 of Pub. L. 113–97, set out as an Effec- tive Date of 2014 Amendment note under section 401 of this title. SUBPART B—BENEFIT LIMITATIONS UNDER SINGLE-EMPLOYER PLANS Sec. 436. Funding-based limits on benefits and benefit accruals under single-employer plans. Editorial Notes AMENDMENTS 2018—Pub. L. 115–141, div. U, title IV, § 401(a)(110), Mar. 23, 2018, 132 Stat. 1189, substituted ‘‘Funding-based limits on benefits and benefit accruals under single-em- ployer plans’’ for ‘‘Funding-based limitation on shut- down benefits and other unpredictable contingent event benefits under single-employer plans’’ in item 436. § 436. Funding-based limits on benefits and ben- efit accruals under single-employer plans (a) General rule For purposes of section 401(a)(29), a defined benefit plan which is a single-employer plan (other than a CSEC plan) shall be treated as meeting the requirements of this section if the plan meets the requirements of subsections (b), (c), (d), and (e). (b) Funding-based limitation on shutdown bene- fits and other unpredictable contingent event benefits under single-employer plans (1) In general If a participant of a defined benefit plan which is a single-employer plan is entitled to an unpredictable contingent event benefit pay- able with respect to any event occurring dur- ing any plan year, the plan shall provide that such benefit may not be provided if the ad- justed funding target attainment percentage for such plan year— (A) is less than 60 percent, or (B) would be less than 60 percent taking into account such occurrence. (2) Exemption Paragraph (1) shall cease to apply with re- spect to any plan year, effective as of the first day of the plan year, upon payment by the plan sponsor of a contribution (in addition to any minimum required contribution under section 430) equal to— (A) in the case of paragraph (1)(A), the amount of the increase in the funding target Page 1543 TITLE 26—INTERNAL REVENUE CODE § 436 of the plan (under section 430) for the plan year attributable to the occurrence referred to in paragraph (1), and (B) in the case of paragraph (1)(B), the amount sufficient to result in an adjusted funding target attainment percentage of 60 percent. (3) Unpredictable contingent event benefit For purposes of this subsection, the term ‘‘unpredictable contingent event benefit’’ means any benefit payable solely by reason of— (A) a plant shutdown (or similar event, as determined by the Secretary), or (B) an event other than the attainment of any age, performance of any service, receipt or derivation of any compensation, or occur- rence of death or disability. (c) Limitations on plan amendments increasing liability for benefits (1) In general No amendment to a defined benefit plan which is a single-employer plan which has the effect of increasing liabilities of the plan by reason of increases in benefits, establishment of new benefits, changing the rate of benefit accrual, or changing the rate at which benefits become nonforfeitable may take effect during any plan year if the adjusted funding target attainment percentage for such plan year is— (A) less than 80 percent, or (B) would be less than 80 percent taking into account such amendment. (2) Exemption Paragraph (1) shall cease to apply with re- spect to any plan year, effective as of the first day of the plan year (or if later, the effective date of the amendment), upon payment by the plan sponsor of a contribution (in addition to any minimum required contribution under section 430) equal to— (A) in the case of paragraph (1)(A), the amount of the increase in the funding target of the plan (under section 430) for the plan year attributable to the amendment, and (B) in the case of paragraph (1)(B), the amount sufficient to result in an adjusted funding target attainment percentage of 80 percent. (3) Exception for certain benefit increases Paragraph (1) shall not apply to any amend- ment which provides for an increase in bene- fits under a formula which is not based on a participant’s compensation, but only if the rate of such increase is not in excess of the contemporaneous rate of increase in average wages of participants covered by the amend- ment. (d) Limitations on accelerated benefit distribu- tions (1) Funding percentage less than 60 percent A defined benefit plan which is a single-em- ployer plan shall provide that, in any case in which the plan’s adjusted funding target at- tainment percentage for a plan year is less than 60 percent, the plan may not pay any pro- hibited payment after the valuation date for the plan year. (2) Bankruptcy A defined benefit plan which is a single-em- ployer plan shall provide that, during any pe- riod in which the plan sponsor is a debtor in a case under title 11, United States Code, or similar Federal or State law, the plan may not pay any prohibited payment. The preceding sentence shall not apply on or after the date on which the enrolled actuary of the plan cer- tifies that the adjusted funding target attain- ment percentage of such plan (determined by not taking into account any adjustment of segment rates under section 430(h)(2)(C)(iv)) is not less than 100 percent. (3) Limited payment if percentage at least 60 percent but less than 80 percent (A) In general A defined benefit plan which is a single- employer plan shall provide that, in any case in which the plan’s adjusted funding target attainment percentage for a plan year is 60 percent or greater but less than 80 per- cent, the plan may not pay any prohibited payment after the valuation date for the plan year to the extent the amount of the payment exceeds the lesser of— (i) 50 percent of the amount of the pay- ment which could be made without regard to this section, or (ii) the present value (determined under guidance prescribed by the Pension Benefit Guaranty Corporation, using the interest and mortality assumptions under section 417(e)) of the maximum guarantee with re- spect to the participant under section 4022 of the Employee Retirement Income Secu- rity Act of 1974. (B) One-time application (i) In general The plan shall also provide that only 1 prohibited payment meeting the require- ments of subparagraph (A) may be made with respect to any participant during any period of consecutive plan years to which the limitations under either paragraph (1) or (2) or this paragraph applies. (ii) Treatment of beneficiaries For purposes of this subparagraph, a par- ticipant and any beneficiary on his behalf (including an alternate payee, as defined in section 414(p)(8)) shall be treated as 1 participant. If the accrued benefit of a par- ticipant is allocated to such an alternate payee and 1 or more other persons, the amount under subparagraph (A) shall be allocated among such persons in the same manner as the accrued benefit is allocated unless the qualified domestic relations order (as defined in section 414(p)(1)(A)) provides otherwise. (4) Exception This subsection shall not apply to any plan for any plan year if the terms of such plan (as in effect for the period beginning on Sep- tember 1, 2005, and ending with such plan year) provide for no benefit accruals with respect to any participant during such period. Page 1544 TITLE 26—INTERNAL REVENUE CODE § 436 (5) Prohibited payment For purpose of this subsection, the term ‘‘prohibited payment’’ means— (A) any payment, in excess of the monthly amount paid under a single life annuity (plus any social security supplements de- scribed in the last sentence of section 411(a)(9)), to a participant or beneficiary whose annuity starting date (as defined in section 417(f)(2)) occurs during any period a limitation under paragraph (1) or (2) is in ef- fect, (B) any payment for the purchase of an ir- revocable commitment from an insurer to pay benefits, and (C) any other payment specified by the Secretary by regulations. Such term shall not include the payment of a benefit which under section 411(a)(11) may be immediately distributed without the consent of the participant. (e) Limitation on benefit accruals for plans with severe funding shortfalls (1) In general A defined benefit plan which is a single-em- ployer plan shall provide that, in any case in which the plan’s adjusted funding target at- tainment percentage for a plan year is less than 60 percent, benefit accruals under the plan shall cease as of the valuation date for the plan year. (2) Exemption Paragraph (1) shall cease to apply with re- spect to any plan year, effective as of the first day of the plan year, upon payment by the plan sponsor of a contribution (in addition to any minimum required contribution under section 430) equal to the amount sufficient to result in an adjusted funding target attain- ment percentage of 60 percent. (f) Rules relating to contributions required to avoid benefit limitations (1) Security may be provided (A) In general For purposes of this section, the adjusted funding target attainment percentage shall be determined by treating as an asset of the plan any security provided by a plan sponsor in a form meeting the requirements of sub- paragraph (B). (B) Form of security The security required under subparagraph (A) shall consist of— (i) a bond issued by a corporate surety company that is an acceptable surety for purposes of section 412 of the Employee Retirement Income Security Act of 1974, (ii) cash, or United States obligations which mature in 3 years or less, held in es- crow by a bank or similar financial insti- tution, or (iii) such other form of security as is sat- isfactory to the Secretary and the parties involved. (C) Enforcement Any security provided under subparagraph (A) may be perfected and enforced at any time after the earlier of— (i) the date on which the plan termi- nates, (ii) if there is a failure to make a pay- ment of the minimum required contribu- tion for any plan year beginning after the security is provided, the due date for the payment under section 430(j), or (iii) if the adjusted funding target at- tainment percentage is less than 60 per- cent for a consecutive period of 7 years, the valuation date for the last year in the period. (D) Release of security The security shall be released (and any amounts thereunder shall be refunded to- gether with any interest accrued thereon) at such time as the Secretary may prescribe in regulations, including regulations for partial releases of the security by reason of in- creases in the adjusted funding target at- tainment percentage. (2) Prefunding balance or funding standard carryover balance may not be used No prefunding balance or funding standard carryover balance under section 430(f) may be used under subsection (b), (c), or (e) to satisfy any payment an employer may make under any such subsection to avoid or terminate the application of any limitation under such sub- section. (3) Deemed reduction of funding balances (A) In general Subject to subparagraph (C), in any case in which a benefit limitation under subsection (b), (c), (d), or (e) would (but for this sub- paragraph and determined without regard to subsection (b)(2), (c)(2), or (e)(2)) apply to such plan for the plan year, the plan sponsor of such plan shall be treated for purposes of this title as having made an election under section 430(f) to reduce the prefunding bal- ance or funding standard carryover balance by such amount as is necessary for such ben- efit limitation to not apply to the plan for such plan year. (B) Exception for insufficient funding bal- ances Subparagraph (A) shall not apply with re- spect to a benefit limitation for any plan year if the application of subparagraph (A) would not result in the benefit limitation not applying for such plan year. (C) Restrictions of certain rules to collec- tively bargained plans With respect to any benefit limitation under subsection (b), (c), or (e), subpara- graph (A) shall only apply in the case of a plan maintained pursuant to 1 or more col- lective bargaining agreements between em- ployee representatives and 1 or more em- ployers. (g) New plans Subsections (b), (c), and (e) shall not apply to a plan for the first 5 plan years of the plan. For purposes of this subsection, the reference in this subsection to a plan shall include a reference to any predecessor plan. Page 1545 TITLE 26—INTERNAL REVENUE CODE § 436 (h) Presumed underfunding for purposes of ben- efit limitations (1) Presumption of continued underfunding In any case in which a benefit limitation under subsection (b), (c), (d), or (e) has been applied to a plan with respect to the plan year preceding the current plan year, the adjusted funding target attainment percentage of the plan for the current plan year shall be pre- sumed to be equal to the adjusted funding tar- get attainment percentage of the plan for the preceding plan year until the enrolled actuary of the plan certifies the actual adjusted fund- ing target attainment percentage of the plan for the current plan year. (2) Presumption of underfunding after 10th month In any case in which no certification of the adjusted funding target attainment percent- age for the current plan year is made with re- spect to the plan before the first day of the 10th month of such year, for purposes of sub- sections (b), (c), (d), and (e), such first day shall be deemed, for purposes of such sub- section, to be the valuation date of the plan for the current plan year and the plan’s ad- justed funding target attainment percentage shall be conclusively presumed to be less than 60 percent as of such first day. (3) Presumption of underfunding after 4th month for nearly underfunded plans In any case in which— (A) a benefit limitation under subsection (b), (c), (d), or (e) did not apply to a plan with respect to the plan year preceding the current plan year, but the adjusted funding target attainment percentage of the plan for such preceding plan year was not more than 10 percentage points greater than the per- centage which would have caused such sub- section to apply to the plan with respect to such preceding plan year, and (B) as of the first day of the 4th month of the current plan year, the enrolled actuary of the plan has not certified the actual ad- justed funding target attainment percentage of the plan for the current plan year, until the enrolled actuary so certifies, such first day shall be deemed, for purposes of such subsection, to be the valuation date of the plan for the current plan year and the adjusted funding target attainment percentage of the plan as of such first day shall, for purposes of such subsection, be presumed to be equal to 10 percentage points less than the adjusted fund- ing target attainment percentage of the plan for such preceding plan year. (i) Treatment of plan as of close of prohibited or cessation period For purposes of applying this title— (1) Operation of plan after period Unless the plan provides otherwise, pay- ments and accruals will resume effective as of the day following the close of the period for which any limitation of payment or accrual of benefits under subsection (d) or (e) applies. (2) Treatment of affected benefits Nothing in this subsection shall be con- strued as affecting the plan’s treatment of benefits which would have been paid or ac- crued but for this section. (j) Terms relating to funding target attainment percentage For purposes of this section— (1) In general The term ‘‘funding target attainment per- centage’’ has the same meaning given such term by section 430(d)(2). (2) Adjusted funding target attainment per- centage The term ‘‘adjusted funding target attain- ment percentage’’ means the funding target attainment percentage which is determined under paragraph (1) by increasing each of the amounts under subparagraphs (A) and (B) of section 430(d)(2) by the aggregate amount of purchases of annuities for employees other than highly compensated employees (as de- fined in section 414(q)) which were made by the plan during the preceding 2 plan years. (3) Application to plans which are fully funded without regard to reductions for funding balances In the case of a plan for any plan year, if the funding target attainment percentage is 100 percent or more (determined without regard to the reduction in the value of assets under sec- tion 430(f)(4)), the funding target attainment percentage for purposes of paragraphs (1) and (2) shall be determined without regard to such reduction. (k) Secretarial authority for plans with alternate valuation date In the case of a plan which has designated a valuation date other than the first day of the plan year, the Secretary may prescribe rules for the application of this section which are nec- essary to reflect the alternate valuation date. (l) Single-employer plan For purposes of this section, the term ‘‘single- employer plan’’ means a plan which is not a multiemployer plan. (Added Pub. L. 109–280, title I, § 113(a)(1)(B), Aug. 17, 2006, 120 Stat. 847; amended Pub. L. 110–458, title I, § 101(c)(2), Dec. 23, 2008, 122 Stat. 5097; Pub. L. 111–192, title II, § 203(a)(2), June 25, 2010, 124 Stat. 1300; Pub. L. 113–97, title II, § 202(c)(3)(B), Apr. 7, 2014, 128 Stat. 1136; Pub. L. 113–159, title II, § 2003(c)(1), Aug. 8, 2014, 128 Stat. 1850; Pub. L. 113–295, div. A, title II, § 221(a)(57)(E)(i), (F)(i), (G)(i), Dec. 19, 2014, 128 Stat. 4046.) Editorial Notes REFERENCES IN TEXT Section 4022 of the Employee Retirement Income Se- curity Act of 1974, referred to in subsec. (d)(3)(A)(ii), is classified to section 1322 of Title 29, Labor. Section 412 of the Employee Retirement Income Se- curity Act of 1974, referred to in subsec (f)(1)(B)(i), is classified to section 1112 of Title 29, Labor. AMENDMENTS 2014—Subsec. (a). Pub. L. 113–97 substituted ‘‘single- employer plan (other than a CSEC plan)’’ for ‘‘single- employer plan’’. Page 1546 TITLE 26—INTERNAL REVENUE CODE § 436 Subsec. (d)(2). Pub. L. 113–159, § 2003(c)(1), substituted ‘‘of such plan (determined by not taking into account any adjustment of segment rates under section 430(h)(2)(C)(iv))’’ for ‘‘of such plan’’. Subsec. (j)(3). Pub. L. 113–295, § 221(a)(57)(F)(i), struck out par. (3) which related to a special rule for plan years beginning on or after Oct. 1, 2008, and before Oct. 1, 2010. Pub. L. 113–295, § 221(a)(57)(E)(i), in par. (3) relating to application to plans which are fully funded without re- gard to reductions for funding balances, struck out sub- par. (A) designation and heading and struck out sub- pars. (B) and (C) which related to a transition rule for plan years beginning after 2007 and before 2011 and a limitation for plan years beginning after 2008, respec- tively. Subsec. (m). Pub. L. 113–295, § 221(a)(57)(G)(i), struck out subsec. (m). Text read as follows: ‘‘For purposes of this section, in the case of plan years beginning in 2008, the funding target attainment percentage for the pre- ceding plan year may be determined using such meth- ods of estimation as the Secretary may provide.’’ 2010—Subsec. (j)(3). Pub. L. 111–192 added par. (3) re- lating to a special rule for plan years beginning on or after Oct. 1, 2008, and before Oct. 1, 2010. 2008—Subsec. (b)(2). Pub. L. 110–458, § 101(c)(2)(A), sub- stituted ‘‘section 430’’ for ‘‘section 303’’ in introductory provisions and ‘‘an adjusted funding’’ for ‘‘a funding’’ in subpar. (B). Subsec. (b)(3). Pub. L. 110–458, § 101(c)(2)(B), inserted ‘‘benefit’’ after ‘‘event’’ in heading and substituted ‘‘an event’’ for ‘‘any event’’ in subpar. (B). Subsec. (d)(5). Pub. L. 110–458, § 101(c)(2)(C), inserted concluding provisions. Subsec. (f)(1)(D). Pub. L. 110–458, § 101(c)(2)(D)(i), in- serted ‘‘adjusted’’ before ‘‘funding’’. Subsec. (f)(2). Pub. L. 110–458, § 101(c)(2)(D)(ii), sub- stituted ‘‘prefunding balance or funding standard car- ryover balance under section 430(f)’’ for ‘‘prefunding balance under section 430(f) or funding standard carry- over balance’’. Subsec. (j)(3)(A). Pub. L. 110–458, § 101(c)(2)(E)(i), struck out ‘‘without regard to this paragraph and’’ be- fore ‘‘without regard to the reduction’’ and substituted ‘‘section 430(f)(4)’’ for ‘‘section 430(f)(4)(A)’’ and ‘‘para- graphs (1) and (2)’’ for ‘‘paragraph (1)’’. Subsec. (j)(3)(C). Pub. L. 110–458, § 101(c)(2)(E)(ii), sub- stituted ‘‘without regard to the reduction in the value of assets under section 430(f)(4)’’ for ‘‘without regard to this paragraph’’ and inserted ‘‘beginning’’ before ‘‘after’’ in two places. Subsecs. (k) to (m). Pub. L. 110–458, § 101(c)(2)(F), added subsecs. (k) and (l) and redesignated former sub- sec. (k) as (m). Statutory Notes and Related Subsidiaries EFFECTIVE DATE OF 2014 AMENDMENT Amendment by Pub. L. 113–295 effective Dec. 19, 2014, subject to a savings provision, see section 221(b) of Pub. L. 113–295, set out as a note under section 1 of this title. Pub. L. 113–159, title II, § 2003(c)(3), Aug. 8, 2014, 128 Stat. 1850, provided that: ‘‘(A) IN GENERAL.—Except as provided in subpara- graph (B), the amendments made by this subsection [amending this section and section 1056 of Title 29, Labor] shall apply to plan years beginning after Decem- ber 31, 2014. ‘‘(B) COLLECTIVELY BARGAINED PLANS.—In the case of a plan maintained pursuant to 1 or more collective bar- gaining agreements, the amendments made by this sub- section shall apply to plan years beginning after De- cember 31, 2015.’’ Amendment by Pub. L. 113–97 applicable to years be- ginning after Dec. 31, 2013, see section 3 of Pub. L. 113–97, set out as a note under section 401 of this title. EFFECTIVE DATE OF 2010 AMENDMENT Pub. L. 111–192, title II, § 203(c), June 25, 2010, 124 Stat. 1300, provided that: ‘‘(1) IN GENERAL.—Except as provided in paragraph (2), the amendments made by this section [amending this section and section 1056 of Title 29, Labor] shall apply to plan years beginning on or after October 1, 2008. ‘‘(2) SPECIAL RULE.—In the case of a plan for which the valuation date is not the first day of the plan year, the amendments made by this section shall apply to plan years beginning after December 31, 2007.’’ EFFECTIVE DATE OF 2008 AMENDMENT Amendment by Pub. L. 110–458 effective as if included in the provisions of Pub. L. 109–280 to which the amend- ment relates, except as otherwise provided, see section 112 of Pub. L. 110–458, set out as a note under section 72 of this title. EFFECTIVE DATE Pub. L. 109–280, title I, § 113(b), Aug. 17, 2006, 120 Stat. 852, as amended by Pub. L. 110–458, title I, § 101(c)(3), Dec. 23, 2008, 122 Stat. 5098, provided that: ‘‘(1) IN GENERAL.—The amendments made by this sec- tion [enacting this subpart] shall apply to plan years beginning after December 31, 2007. ‘‘(2) COLLECTIVE BARGAINING EXCEPTION.—In the case of a plan maintained pursuant to 1 or more collective bargaining agreements between employee representa- tives and 1 or more employers ratified before January 1, 2008, the amendments made by this section shall not apply to plan years beginning before the earlier of— ‘‘(A) the later of— ‘‘(i) the date on which the last collective bar- gaining agreement relating to the plan terminates (determined without regard to any extension there- of agreed to after the date of the enactment of this Act [Aug. 17, 2006]), or ‘‘(ii) the first day of the first plan year to which the amendments made by this section [enacting this subpart] would (but for this paragraph) apply, or ‘‘(B) January 1, 2010. For purposes of subparagraph (A)(i), any plan amend- ment made pursuant to a collective bargaining agree- ment relating to the plan which amends the plan solely to conform to any requirement added by this section shall not be treated as a termination of such collective bargaining agreement.’’ PROVISIONS RELATING TO PLAN AMENDMENTS Pub. L. 113–159, title II, § 2003(c)(4), Aug. 8, 2014, 128 Stat. 1850, provided that: ‘‘(A) IN GENERAL.—If this paragraph applies to any amendment to any plan or annuity contract, such plan or contract shall be treated as being operated in ac- cordance with the terms of the plan during the period described in subparagraph (B)(ii). ‘‘(B) AMENDMENTS TO WHICH PARAGRAPH APPLIES.— ‘‘(i) IN GENERAL.—This paragraph shall apply to any amendment to any plan or annuity contract which is made— ‘‘(I) pursuant to the amendments made by this subsection [amending this section and section 1056 of Title 29, Labor], or pursuant to any regulation issued by the Secretary of the Treasury or the Sec- retary of Labor under any provision as so amended, and ‘‘(II) on or before the last day of the first plan year beginning on or after January 1, 2016, or such later date as the Secretary of the Treasury may prescribe. ‘‘(ii) CONDITIONS.—This subsection [amending this section and section 1056 of Title 29, Labor, and enact- ing provisions set out as a note under this section] shall not apply to any amendment unless, during the period— ‘‘(I) beginning on the date that the amendments made by this subsection or the regulation described in clause (i)(I) takes effect (or in the case of a plan or contract amendment not required by such amendments or such regulation, the effective date specified by the plan), and Page 1547 TITLE 26—INTERNAL REVENUE CODE § 441 ‘‘(II) ending on the date described in clause (i)(II) (or, if earlier, the date the plan or contract amend- ment is adopted), the plan or contract is operated as if such plan or contract amendment were in effect, and such plan or contract amendment applies retroactively for such period. ‘‘(C) ANTI-CUTBACK RELIEF.—A plan shall not be treat- ed as failing to meet the requirements of section 204(g) of the Employee Retirement Income Security Act of 1974 (29 U.S.C. 1054(g)) and section 411(d)(6) of the Inter- nal Revenue Code of 1986 [26 U.S.C. 411(d)(6)] solely by reason of a plan amendment to which this paragraph applies.’’ TEMPORARY MODIFICATION OF APPLICATION OF LIMITATION ON BENEFIT ACCRUALS Pub. L. 111–192, title II, § 203(b), June 25, 2010, 124 Stat. 1300, provided that: ‘‘Section 203 of the Worker, Retiree, and Employer Recovery Act of 2008 [Pub. L. 110–458, set out below] shall apply to a plan for any plan year in lieu of the amendments made by this section applying to sections 206(g)(4) of the Employee Retirement In- come Security Act of 1974 [29 U.S.C. 1056(g)(4)] and 436(e) of the Internal Revenue Code of 1986 only to the extent that such section produces a higher adjusted funding target attainment percentage for such plan for such year.’’ Pub. L. 110–458, title II, § 203, Dec. 23, 2008, 122 Stat. 5118, provided that: ‘‘In the case of the first plan year beginning during the period beginning on October 1, 2008, and ending on September 30, 2009, sections 206(g)(4)(A) of the Employee Retirement Income Secu- rity Act of 1974 (29 U.S.C. 1056(g)(4)(A)) and 436(e)(1) of the Internal Revenue Code of 1986 shall be applied by substituting the plan’s adjusted funding target attain- ment percentage for the preceding plan year for such percentage for such plan year but only if the adjusted funding target attainment percentage for the preceding plan year is greater.’’ APPLICABILITY OF AMENDMENTS BY SUBTITLES A AND B OF TITLE I OF PUB. L. 109–280 For special rules on applicability of amendments by subtitles A (§§ 101–108) and B (§§ 111–116) of title I of Pub. L. 109–280 to certain eligible cooperative plans, PBGC settlement plans, and eligible government contractor plans, see sections 104, 105, and 106 of Pub. L. 109–280, set out as notes under section 401 of this title. Subchapter E—Accounting Periods and Methods of Accounting Part I. Accounting periods. II. Methods of accounting. III. Adjustments. PART I—ACCOUNTING PERIODS Sec. 441. Period for computation of taxable income. 442. Change of annual accounting period. 443. Returns for a period of less than 12 months. 444. Election of taxable year other than required taxable year. Editorial Notes AMENDMENTS 1987—Pub. L. 100–203, title X, § 10206(a)(2), Dec. 22, 1987, 101 Stat. 1330–398, added item 444. § 441. Period for computation of taxable income (a) Computation of taxable income Taxable income shall be computed on the basis of the taxpayer’s taxable year. (b) Taxable year For purposes of this subtitle, the term ‘‘tax- able year’’ means— (1) the taxpayer’s annual accounting period, if it is a calendar year or a fiscal year; (2) the calendar year, if subsection (g) ap- plies; (3) the period for which the return is made, if a return is made for a period of less than 12 months; or (4) in the case of a DISC filing a return for a period of at least 12 months, the period de- termined under subsection (h). (c) Annual accounting period For purposes of this subtitle, the term ‘‘an- nual accounting period’’ means the annual pe- riod on the basis of which the taxpayer regularly computes his income in keeping his books. (d) Calendar year For purposes of this subtitle, the term ‘‘cal- endar year’’ means a period of 12 months ending on December 31. (e) Fiscal year For purposes of this subtitle, the term ‘‘fiscal year’’ means a period of 12 months ending on the last day of any month other than December. In the case of any taxpayer who has made the elec- tion provided by subsection (f) the term means the annual period (varying from 52 to 53 weeks) so elected. (f) Election of year consisting of 52–53 weeks (1) General rule A taxpayer who, in keeping his books, regu- larly computes his income on the basis of an annual period which varies from 52 to 53 weeks and ends always on the same day of the week and ends always— (A) on whatever date such same day of the week last occurs in a calendar month, or (B) on whatever date such same day of the week falls which is nearest to the last day of a calendar month, may (in accordance with the regulations pre- scribed under paragraph (3)) elect to compute his taxable income for purposes of this sub- title on the basis of such annual period. This paragraph shall apply to taxable years ending after the date of the enactment of this title. (2) Special rules for 52–53-week year (A) Effective dates In any case in which the effective date or the applicability of any provision of this title is expressed in terms of taxable years beginning, including, or ending with ref- erence to a specified date which is the first or last day of a month, a taxable year de- scribed in paragraph (1) shall (except for pur- poses of the computation under section 15) be treated— (i) as beginning with the first day of the calendar month beginning nearest to the first day of such taxable year, or (ii) as ending with the last day of the calendar month ending nearest to the last day of such taxable year, as the case may be. (B) Change in accounting period In the case of a change from or to a tax- able year described in paragraph (1)—