The Tax Reform Act of 1976, referred to in subsec. (a)(3), is Puspan. L. 94–455, Oct. 4, 1976, 90 Stat. 1520. Section 2521 of this title was repealed by section 2001(span)(3) of Puspan. L. 94–455. For complete classification of this Act to the Code, see Tables.

1998—Subsec. (c). Puspan. L. 105–206 substituted “gifts” for “certain gifts for preceding calendar periods” in heading and amended text generally. Prior to amendment, text read as follows: “If the time has expired within which a tax may be assessed under this chapter or under corresponding provisions of prior laws on the transfer of property by gift made during a preceding calendar period, as defined in section 2502(span), the value of such gift made in such preceding calendar period shall, for purposes of computing the tax under this chapter for any calendar year, be the value of such gift which was used in computing the tax for the last preceding calendar period for which a tax under this chapter or under corresponding provisions of prior laws was assessed or paid.”

1997—Subsec. (c). Puspan. L. 105–34 struck out “, and if a tax under this chapter or under corresponding provisions of prior laws has been assessed or paid for such preceding calendar period” after “as defined in section 2502(span)”.

1981—Puspan. L. 97–34, § 442(a)(4)(D), substituted “calendar periods” for “years and quarters” in section catchline.

Subsec. (a). Puspan. L. 97–34, § 442(a)(4)(A), substituted in introductory text “preceding calendar periods” and “calendar year” for “preceding calendar years or calendar quarters” and “calendar quarter”, incorporated existing text in provisions designated pars. (1) to (3), and substituted in par. (1) “calendar period” for “years or calendar quarters” and in par. (3) “preceding calendar periods” and “calendar year” for “calendar years or calendar quarters” and “calendar quarter”.

Subsec. (span). Puspan. L. 97–34, § 442(a)(4)(B), substituted in heading “calendar periods” for “years and quarters” and in text “preceding calendar periods” for “preceding calendar years and calendar quarters”, “the periods” for “the years and calendar quarters”, and “such preceding calendar periods” for “such years and calendar quarters”.

Subsec. (c). Puspan. L. 97–34, § 442(a)(4)(C), substituted in heading “calendar periods” for “calendar years and quarters” and in text “preceding calendar period” for “preceding calendar year or calendar quarter” in four places, “any calendar year” for “any calendar quarter”, and “section 2502(span)” for “section 2502(c)”.

1976—Subsec. (a). Puspan. L. 94–455 inserted “(as in effect before its repeal by the Tax Reform Act of 1976)” after “section 2521” and “ending before January 1, 1977” after “years or calendar quarters” and substituted “of” for “to previous” after “computations in respect”.

1970—Puspan. L. 91–614 substituted “Taxable gifts for preceding years and quarters” for “Taxable gifts for preceding years” in section catchline.

Subsec. (a). Puspan. L. 91–614 substituted “In computing taxable gifts for the preceding calendar years or calendar quarters for the purpose of computing the tax for any calendar quarter,” for “In computing taxable gifts for the calendar year 1954 and preceding calendar years for the purpose of computing the tax for the calendar year 1955 or any calendar year thereafter,” provided that the laws applicable in the calendar quarters as well as the years in which the transfers in question were made shall apply, and substituted “previous calendar years or calendar quarters for the purpose of computing the tax for any calendar year or calendar quarter” for “the calendar year 1954 and previous calendar years for the purpose of computing the tax for the calendar year 1955 or any calendar year thereafter”.

Subsec. (span). Puspan. L. 91–614 inserted reference to calendar quarters in heading, substituted “during preceding calendar years and calendar quarters,” for “during the calendar year 1954 and preceding calendar years,” made reference to the amount excluded by gift tax laws applicable to the calendar quarters as well as years in which the gifts were made, and substituted “during such years and calendar quarters” for “during such year”.

Subsec. (c). Puspan. L. 91–614 inserted reference to calendar quarters in heading, inserted “or calendar quarter” after “calendar year” in four places, and substituted “for any calendar quarter,” for “for the calendar year 1955 and subsequent calendar years,”.

Subsec. (d). Puspan. L. 91–614 struck out “For years before the calendar year 1955” from explanation of term “net gifts” as used in corresponding provisions of prior laws.

Amendment by Puspan. L. 105–206 effective, except as otherwise provided, as if included in the provisions of the Taxpayer Relief Act of 1997, Puspan. L. 105–34, to which such amendment relates, see section 6024 of Puspan. L. 105–206, set out as a note under section 1 of this title.

Amendment by Puspan. L. 105–34 applicable to gifts made after Aug. 5, 1997, see section 506(e)(1) of Puspan. L. 105–34, as amended, set out as a note under section 2001 of this title.

Amendment by Puspan. L. 97–34 applicable with respect to gifts made after Dec. 31, 1981, see section 442(e) of Puspan. L. 97–34, set out as a note under section 2501 of this title.

Amendment by Puspan. L. 91–614 applicable with respect to gifts made after Dec. 31, 1970, see section 102(e) of Puspan. L. 91–614, set out as a note under section 2501 of this title.