The Internal Revenue Code of 1986, referred to in subsecs. (d) to (f), is classified generally to Title 26, Internal Revenue Code.

The Internal Revenue Code of 1939, referred to in subsecs. (d)(1), (e), and (f), was generally repealed by section 7851 of the Internal Revenue Code of 1954, Title 26. The Internal Revenue Code of 1954 was redesignated the Internal Revenue Code of 1986 by Pub. L. 99–514, § 2, Oct. 22, 1986, 100 Stat. 2095. For table of comparisons of the 1939 Code to the 1986 Code, see Table I preceding section 1 of Title 26, Internal Revenue Code. See also section 7852(b) of Title 26 for provision that references in any other law to a provision of the 1939 Code, unless expressly incompatible with the intent thereof, shall be deemed a reference to the corresponding provision of the 1986 Code.

Subtitle A (not including chapter 2 and section 931) and chapters 24 and 25 of subtitle C, referred to in subsec. (d)(1), and subtitle F and chapter 75, referred to in subsecs. (d)(1) and (f), mean subtitle A (§ 1 et seq.), chapter 2 (§ 1401 et seq.) of subtitle A, chapters 24 (§ 3401 et seq.) and 25 (§ 3501 et seq.) of subtitle C, subtitle F (§ 6001 et seq.) and chapter 75 (§ 7201 et seq.) of subtitle F, respectively, of Title 26.

2002—Subsec. (d)(3). Pub. L. 107–212 added par. (3).

1986—Subsecs. (d) to (f). Pub. L. 99–514 substituted “Internal Revenue Code of 1986” for “Internal Revenue Code of 1954” wherever appearing.

1977—Subsec. (a). Pub. L. 95–134 inserted provision that the Legislature of Guam may levy a separate tax on taxpayers in an amount not to exceed 10 per centum of their annual income tax obligation to the Government of Guam.

1972—Subsec. (d)(2). Pub. L. 92–606 substituted “Needful rules and regulations not inconsistent with the regulations prescribed under section 7654(e) of the Internal Revenue Code of 1954” for “Needful rules and regulations”.

1958—Subsec. (a). Pub. L. 85–688 designated existing provisions as subsec. (a).

Subsecs. (b) to (h). Pub. L. 85–688 added subsecs. (b) to (h).

Pub. L. 107–212, § 2(b), Aug. 21, 2002, 116 Stat. 1051, provided that: “The amendment made by subsection (a) [amending this section] shall apply to amounts paid after the date of the enactment of the Act [Aug. 21, 2002].”

Amendment by Pub. L. 92–606 applicable with respect to taxable years beginning after Dec. 31, 1972, see section 2 of Pub. L. 92–606, set out in part as a note under section 931 of Title 26, Internal Revenue Code.

Section became effective Jan. 1, 1951, by provision of Ex. Ord. No. 10211 eff. Feb. 6, 1951, 16 F.R. 1167.

See section 1271 of Pub. L. 99–514, set out as a note under section 931 of Title 26, Internal Revenue Code.

Pub. L. 85–688, § 2, Aug. 20, 1958, 72 Stat. 683, provided that income taxes assessed prior to Aug. 20, 1958, by the authorities of the government of Guam pursuant to, or under color of, this section, the collection of such taxes, and all acts done to effectuate such assessment and collection were legalized, ratified and confirmed as fully, to all intents and purposes, as if subsecs. (b) to (h) of this section, had then been in full force and effect.