Section 811 of the Internal Revenue Code of 1939, referred to in subsecs. (a)(2) and (b)(6), (8), was classified to section 811 of former Title 26, Internal Revenue Code. For table of comparisons of the 1939 Code to the 1986 Code, see Table I preceding section 1 of this title. See, also, section 7851 (e) of this title for provision that references in the 1986 Code to a provision of the 1939 Code, not then applicable, shall be deemed a reference to the corresponding provision of the 1986 Code, which is then applicable.

Chapter 3 of the Internal Revenue Code of 1939, referred to in subsec. (b)(7), was comprised of sections 800 to 951 of former Title 26, Internal Revenue Code. For table of comparisons of the 1939 Code to the 1986 Code, see Table I preceding section 1 of this title. See also section 7851 (a)(2)(A) of this title for applicability of chapter 3 of former title 26. See also section 7851 (e) of this title for provision that references in the 1986 Code to a provision of the 1939 Code, not then applicable, shall be deemed a reference to the corresponding provision of the 1986 Code, which is then applicable.

Revenue Act of 1948, referred to in subsec. (b)(7), is act Apr. 2, 1948, ch. 168, 62 Stat. 110. For complete classification of this Act to the Code, see Tables.

The Internal Revenue Code of 1939, referred to in subsec. (b)(9), is act Feb. 10, 1939, ch. 2, 53 Stat. 1, as amended. Prior to the enactment of the Internal Revenue Code of 1986 [formerly I.R.C. 1954], the 1939 Code was classified to former Title 26, Internal Revenue Code. For table of comparisons of the 1939 Code to the 1986 Code, see Table I preceding section 1 of this title.

2004—Subsec. (b)(5). Pub. L. 108–357 inserted “and before January 1, 2005,” after “August 26, 1937,”.

2001—Subsec. (f). Pub. L. 107–16, §§ 541, 901, temporarily added subsec. (f). See Termination Date of 2001 Amendment note below.

1997—Subsec. (a). Pub. L. 105–34 struck out “or” at end of pars. (1) and (2), struck out the period at end of par. (3) and inserted “, or”, and added par. (4).

1983—Subsec. (b)(10). Pub. L. 97–448 added par. (10).

1981—Subsec. (e). Pub. L. 97–34 added subsec. (e).

1980—Subsec. (a)(3). Pub. L. 96–222 substituted “section 2032A” for “section 2032.1”.

Subsec. (d). Pub. L. 96–223 repealed the amendment made by Pub. L. 94–455, § 2005(a)(1). See 1976 Amendment note below.

1978—Subsec. (a). Pub. L. 95–600, § 702(c)(1)(A), designated existing provisions as pars. (1) and (2) and added par. (3).

Subsec. (d). Pub. L. 95–600, § 515(1), substituted “December 31, 1979” for “December 31, 1976” in heading and text.

1976—Subsec. (b)(6), (7). Pub. L. 94–455, § 1901(c)(8), struck out “Territory,” after “under the community property laws of any State,”.

Subsec. (d). Pub. L. 94–455, § 2005(a)(1), substituted provision relating to the applicability of this section to decedents dying after 1976 for provision relating to a special rule with respect to DISC stock. See Repeals note below.

1971—Subsec. (d). Pub. L. 92–178 added subsec. (d).

1958—Subsec. (d). Pub. L. 85–320 repealed subsec. (d) which made section inapplicable to restricted stock options described in section 421 which the employee has not exercised at death.

Amendment by Pub. L. 108–357 applicable to taxable years of foreign corporations beginning after Dec. 31, 2004, and to taxable years of United States shareholders with or within which such taxable years of foreign corporations end, see section 413(d)(1) of Pub. L. 108–357, set out as an Effective and Termination Dates of 2004 Amendments note under section 1 of this title.

Amendment by Pub. L. 107–16 inapplicable to estates of decedents dying, gifts made, or generation skipping transfers, after Dec. 31, 2010, and the Internal Revenue Code of 1986 to be applied and administered to such estates, gifts, and transfers as if such amendment had never been enacted, see section 901 of Pub. L. 107–16, set out as an Effective and Termination Dates of 2001 Amendment note under section 1 of this title.

Section 508(e)(1) of Pub. L. 105–34 provided that: “The amendments made by subsections (a) and (b) [amending this section and section 2031 of this title] shall apply to estates of decedents dying after December 31, 1997.”

Amendment by Pub. L. 97–448 effective, except as otherwise provided, as if it had been included in the provision of the Economic Recovery Tax Act of 1981, Pub. L. 97–34, to which such amendment relates, see section 109 of Pub. L. 97–448, set out as a note under section 1 of this title.

Section 425(b) of Pub. L. 97–34 provided that: “The amendment made by subsection (a) [amending this section] shall apply to property acquired after the date of the enactment of this Act [Aug. 13, 1981] by decedents dying after December 31, 1981.”

Amendment by Pub. L. 96–223 (repealing section 2005(a)(1) of Pub. L. 94–455 and the amendment made thereby, which had amended this section) applicable in respect of decedents dying after Dec. 31, 1976, and except for certain elections, this title to be applied and administered as if those repealed provisions had not been enacted, see section 401(b), (e) of Pub. L. 96–223, set out as a note under section 1023 of this title.

Amendment by Pub. L. 96–222 effective, except as otherwise provided, as if it had been included in the provisions of the Revenue Act of 1978, Pub. L. 95–600, to which such amendment relates, see section 201 of Pub. L. 96–222, set out as an Effective Date of 1980 Amendment note under section 32 of this title.

Section 702(c)(10) of Pub. L. 95–600 provided that: “The amendments made by this subsection [amending this section and sections 1001, 1223, and 2614 of this title] shall take effect as if included in the amendments and additions made by, and the appropriate provisions of the Tax Reform Act of 1976 [Pub. L. 94–455, Oct. 4, 1976, 90 Stat 1525].”

Amendment by section 1901(c)(8) of Pub. L. 94–455 applicable with respect to taxable years beginning after Dec. 31, 1976, see section 1901(d) of Pub. L. 94–455, set out as a note under section 2 of this title.

Amendment by section 2005(a)(1) of Pub. L. 94–455 applicable in respect of decedents dying after Dec. 31, 1976, see section 2005(f) of Pub. L. 94–455, set out as an Effective Date note under section 1015 of this title.

Amendment by Pub. L. 92–178 applicable with respect to taxable years ending after Dec. 31, 1971, except that a corporation may not be a DISC for any taxable year beginning before Jan. 1972, see section 507 of Pub. L. 92–178, set out as a note under section 991 of this title.

Amendment by Pub. L. 85–320 applicable with respect to taxable years ending after Dec. 31, 1956, but only in the case of employees dying after such date, see section 3 of Pub. L. 85–320, set out as a note under section 421 of this title.

Pub. L. 94–455, § 2005(a)(1), cited as a credit to this section, and the amendment made thereby, were repealed by Pub. L. 96–223, title IV, § 401(a), 94 Stat. 299, resulting in the text of this section reading as it read prior to enactment of section 2005 (a)(1). See Effective Date of 1980 Amendments and Revival of Prior Law note above.

Pub. L. 96–223, title IV, § 401(d), Apr. 2, 1980, 94 Stat. 300, as amended by Pub. L. 99–514, § 2, Oct. 22, 1986, 100 Stat. 2095, provided that: “Notwithstanding any other provision of law, in the case of a decedent dying after December 31, 1976, and before November 7, 1978, the executor (within the meaning of section 2203 of the Internal Revenue Code of 1986 [formerly I.R.C. 1954]) of such decedent’s estate may irrevocably elect, within 120 days following the date of enactment of this Act [Apr. 2, 1980] and in such manner as the Secretary of the Treasury or his delegate shall prescribe, to have the basis of all property acquired from or passing from the decedent (within the meaning of section 1014(b) of the Internal Revenue Code of 1986) determined for all purposes under such Code as though the provisions of section 2005 of the Tax Reform Act of 1976 [Pub. L. 94–455] (as amended by the provisions of section 702(c) of the Revenue Act of 1978 [Pub. L. 95–600] applied to such property acquired or passing from such decedent.”