View all text of Subpart A [§ 21 - § 26]
§ 26. Limitation based on tax liability; definition of tax liability
(a) Limitation based on amount of tax
The aggregate amount of credits allowed by this subpart for the taxable year shall not exceed the sum of—
(1) the taxpayer’s regular tax liability for the taxable year reduced by the foreign tax credit allowable under section 27, and
(2) the tax imposed by section 55(a) for the taxable year.
(b) Regular tax liability
For purposes of this part—
(1) In general
(2) Exception for certain taxes
For purposes of paragraph (1), any tax imposed by any of the following provisions shall not be treated as tax imposed by this chapter:
(A) section 55 (relating to minimum tax),
(B) section 59A (relating to base erosion and anti-abuse tax),
(C) subsection (m)(5)(B), (q), (t), or (v) of section 72 (relating to additional taxes on certain distributions),
(D) section 143(m) (relating to recapture of proration of Federal subsidy from use of mortgage bonds and mortgage credit certificates),
(E) section 530(d)(4) (relating to additional tax on certain distributions from Coverdell education savings accounts),
(F) section 531 (relating to accumulated earnings tax),
(G) section 541 (relating to personal holding company tax),
(H) section 1351(d)(1) (relating to recoveries of foreign expropriation losses),
(I) section 1374 (relating to tax on certain built-in gains of S corporations),
(J) section 1375 (relating to tax imposed when passive investment income of corporation having subchapter C earnings and profits exceeds 25 percent of gross receipts),
(K) subparagraph (A) of section 7518(g)(6) (relating to nonqualified withdrawals from capital construction funds taxed at highest marginal rate),
(L) sections 871(a) and 881 (relating to certain income of nonresident aliens and foreign corporations),
(M) section 860E(e) (relating to taxes with respect to certain residual interests),
(N) section 884 (relating to branch profits tax),
(O) sections 453(l)(3) and 453A(c) (relating to interest on certain deferred tax liabilities),
[(P) Repealed. Pub. L. 115–141, div. U, title IV, § 401(b)(2), Mar. 23, 2018, 132 Stat. 1201.]
(Q) section 220(f)(4) (relating to additional tax on Archer MSA distributions not used for qualified medical expenses),
(R) section 138(c)(2) (relating to penalty for distributions from Medicare Advantage MSA not used for qualified medical expenses if minimum balance not maintained),
(S) sections 106(e)(3)(A)(ii), 223(b)(8)(B)(i)(II), and 408(d)(9)(D)(i)(II) (relating to certain failures to maintain high deductible health plan coverage),
(T) section 170(o)(3)(B) (relating to recapture of certain deductions for fractional gifts),
(U) section 223(f)(4) (relating to additional tax on health savings account distributions not used for qualified medical expenses),
(V) subsections (a)(1)(B)(i) and (b)(4)(A) of section 409A (relating to interest and additional tax with respect to certain deferred compensation),
(W) section 36(f) (relating to recapture of homebuyer credit),
(X) section 457A(c)(1)(B) (relating to determinability of amounts of compensation),
(Y) section 529A(c)(3)(A) (relating to additional tax on ABLE account distributions not used for qualified disability expenses), and
(Z) section 24(j)(2) (relating to excess advance payments).
(c) Tentative minimum tax
(Added § 25, renumbered § 26, Pub. L. 98–369, div. A, title IV, § 472, title VI, § 612(a), July 18, 1984, 98 Stat. 827, 905; amended Pub. L. 99–499, title V, § 516(b)(1)(A), Oct. 17, 1986, 100 Stat. 1770; Pub. L. 99–514, title II, § 261(c), title VI, § 632(c)(1), title VII, § 701(c)(1), Oct. 22, 1986, 100 Stat. 2214, 2277, 2340; Pub. L. 100–647, title I, §§ 1006(t)(16)(C), 1007(g)(1), 1011A(c)(10), 1012(q)(8), title IV, § 4005(g)(4), title V, § 5012(b)(2), Nov. 10, 1988, 102 Stat. 3425, 3434, 3476, 3524, 3650, 3662; Pub. L. 101–239, title VII, §§ 7811(c)(1), (2), 7821(a)(4)(A), Dec. 19, 1989, 103 Stat. 2406, 2407, 2424; Pub. L. 104–188, title I, § 1621(b)(1), Aug. 20, 1996, 110 Stat. 1866; Pub. L. 105–34, title II, § 213(e)(1), title XVI, § 1602(a)(1), Aug. 5, 1997, 111 Stat. 817, 1093; Pub. L. 105–277, div. J, title II, § 2001(a), Oct. 21, 1998, 112 Stat. 2681–901; Pub. L. 106–170, title V, § 501(a), Dec. 17, 1999, 113 Stat. 1918; Pub. L. 106–554, § 1(a)(7) [title II, § 202(a)(1)], Dec. 21, 2000, 114 Stat. 2763, 2763A–628; Pub. L. 107–16, title II, §§ 201(b)(2)(D), 202(f)(2)(C), title VI, § 618(b)(2)(C), June 7, 2001, 115 Stat. 46, 49, 108; Pub. L. 107–22, § 1(b)(2)(A), July 26, 2001, 115 Stat. 197; Pub. L. 107–147, title IV, §§ 415(a), 417(23)(B), title VI, § 601(a), Mar. 9, 2002, 116 Stat. 54, 57, 59; Pub. L. 108–311, title III, § 312(a), title IV, §§ 401(a)(1), 408(a)(5)(A), Oct. 4, 2004, 118 Stat. 1181, 1183, 1191; Pub. L. 109–135, title IV, §§ 403(hh)(1), 412(c), Dec. 21, 2005, 119 Stat. 2631, 2636; Pub. L. 109–222, title III, § 302(a), May 17, 2006, 120 Stat. 353; Pub. L. 110–166, § 3(a), Dec. 26, 2007, 121 Stat. 2461; Pub. L. 110–172, § 11(a)(3), Dec. 29, 2007, 121 Stat. 2484; Pub. L. 110–289, div. C, title I, § 3011(b)(1), July 30, 2008, 122 Stat. 2891; Pub. L. 110–343, div. B, title I, § 106(e)(2)(D), title II, § 205(d)(1)(D), div. C, title I, § 101(a), title VIII, § 801(b), Oct. 3, 2008, 122 Stat. 3817, 3839, 3863, 3931; Pub. L. 111–5, div. B, title I, §§ 1004(b)(3), 1011(a), 1142(b)(1)(D), 1144(b)(1)(D), Feb. 17, 2009, 123 Stat. 314, 319, 330, 332; Pub. L. 111–148, title X, § 10909(b)(2)(E), (c), Mar. 23, 2010, 124 Stat. 1023; Pub. L. 111–312, title I, § 101(b)(1), title II, § 202(a), Dec. 17, 2010, 124 Stat. 3298, 3299; Pub. L. 112–240, title I, § 104(c)(1), Jan. 2, 2013, 126 Stat. 2321; Pub. L. 113–295, div. A, title II, § 221(a)(12)(B), div. B, title I, § 102(e)(1), Dec. 19, 2014, 128 Stat. 4038, 4062; Pub. L. 115–97, title I, § 14401(c), Dec. 22, 2017, 131 Stat. 2233; Pub. L. 115–141, div. U, title IV, § 401(b)(2), (d)(1)(D)(ii), Mar. 23, 2018, 132 Stat. 1201, 1206; Pub. L. 117–2, title IX, § 9611(b)(4)(A), Mar. 11, 2021, 135 Stat. 150.)