Title 26Internal Revenue CodeRelease 119-73

§2651 Generation assignment

Title 26 › Subtitle Subtitle B— - Estate and Gift Taxes › Chapter CHAPTER 13— - TAX ON GENERATION-SKIPPING TRANSFERS › Subchapter Subchapter F— - Other Definitions and Special Rules › § 2651

Last updated Apr 6, 2026|Official source

Summary

Decides which generation a person belongs to for tax rules about gifts and inheritances. If someone is a direct descendant of one of the giver’s grandparents, you compare how many generations each is from that grandparent to pick the generation. The same rule applies if the person is a descendant of a grandparent of the giver’s spouse. Adopted and half-blood relatives count like blood relatives. Anyone who has ever been married to the giver is put in the giver’s generation, and anyone who has ever been married to a person covered above is put in that person’s generation. If no rule above fits, use birth dates: someone born within 12½ years after the giver is in the giver’s generation; born more than 12½ but not more than 37½ years after is one generation younger; add a new generation for each 25 years after that. For deciding whether a transfer “skips” a generation for tax purposes, a descendant of a parent of the giver (or the giver’s spouse) is treated based on whether that descendant’s parent (the nearer generation) was dead at the earliest time the transfer was subject to tax. A person who would fall in more than one generation is placed in the youngest one. When an estate, trust, partnership, corporation, or similar entity owns property, each person who benefits from that entity is treated as owning an interest and is assigned a generation, except for certain tax-exempt organizations, some charitable trusts, and government entities.

Full Legal Text

Title 26, §2651

Internal Revenue Code — Source: USLM XML via OLRC

(a)For purposes of this chapter, the generation to which any person (other than the transferor) belongs shall be determined in accordance with the rules set forth in this section.
(b)(1)An individual who is a lineal descendant of a grandparent of the transferor shall be assigned to that generation which results from comparing the number of generations between the grandparent and such individual with the number of generations between the grandparent and the transferor.
(2)An individual who is a lineal descendant of a grandparent of a spouse (or former spouse) of the transferor (other than such spouse) shall be assigned to that generation which results from comparing the number of generations between such grandparent and such individual with the number of generations between such grandparent and such spouse.
(3)For purposes of this subsection—
(A)A relationship by legal adoption shall be treated as a relationship by blood.
(B)A relationship by the half-blood shall be treated as a relationship of the whole-blood.
(c)(1)An individual who has been married at any time to the transferor shall be assigned to the transferor’s generation.
(2)An individual who has been married at any time to an individual described in subsection (b) shall be assigned to the generation of the individual so described.
(d)An individual who is not assigned to a generation by reason of the foregoing provisions of this section shall be assigned to a generation on the basis of the date of such individual’s birth with—
(1)an individual born not more than 12½ years after the date of the birth of the transferor assigned to the transferor’s generation,
(2)an individual born more than 12½ years but not more than 37½ years after the date of the birth of the transferor assigned to the first generation younger than the transferor, and
(3)similar rules for a new generation every 25 years.
(e)(1)For purposes of determining whether any transfer is a generation-skipping transfer, if—
(A)an individual is a descendant of a parent of the transferor (or the transferor’s spouse or former spouse), and
(B)such individual’s parent who is a lineal descendant of the parent of the transferor (or the transferor’s spouse or former spouse) is dead at the time the transfer (from which an interest of such individual is established or derived) is subject to a tax imposed by chapter 11 or 12 upon the transferor (and if there shall be more than 1 such time, then at the earliest such time),
(2)This subsection shall not apply with respect to a transfer to any individual who is not a lineal descendant of the transferor (or the transferor’s spouse or former spouse) if, at the time of the transfer, such transferor has any living lineal descendant.
(f)(1)Except as provided in regulations, an individual who, but for this subsection, would be assigned to more than 1 generation shall be assigned to the youngest such generation.
(2)Except as provided in paragraph (3), if an estate, trust, partnership, corporation, or other entity has an interest in property, each individual having a beneficial interest in such entity shall be treated as having an interest in such property and shall be assigned to a generation under the foregoing provisions of this subsection.
(3)Any—
(A)organization described in section 511(a)(2),
(B)charitable trust described in section 511(b)(2), and
(C)governmental entity,

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

1997—Subsecs. (e), (f). Pub. L. 105–34 added subsec. (e) and redesignated former subsec. (e) as (f). 1988—Subsec. (b)(2). Pub. L. 100–647, § 1014(g)(19), inserted “(or former spouse)” after “a spouse”. Subsec. (e)(3). Pub. L. 100–647, § 1014(g)(11), amended par. (3) generally, including governmental entities among the organizations to be assigned to transferor’s generation.

Statutory Notes and Related Subsidiaries

Effective Date

of 1997 AmendmentAmendment by Pub. L. 105–34 applicable to terminations, distributions, and transfers occurring after Dec. 31, 1997, see section 511(c) of Pub. L. 105–34, set out as a note under section 2612 of this title.

Effective Date

of 1988 AmendmentAmendment by Pub. L. 100–647 effective, except as otherwise provided, as if included in the provision of the Tax Reform Act of 1986, Pub. L. 99–514, to which such amendment relates, see section 1019(a) of Pub. L. 100–647, set out as a note under section 1 of this title.

Effective Date

Section applicable to generation-skipping transfers (within the meaning of section 2611 of this title) made after Oct. 22, 1986, except as otherwise provided, see section 1433 of Pub. L. 99–514, set out as a note under section 2601 of this title.

Reference

Citations & Metadata

Citation

26 U.S.C. § 2651

Title 26Internal Revenue Code

Last Updated

Apr 6, 2026

Release point: 119-73