26 U.S.C. § 318
Constructive ownership of stock
For purposes of subparagraph (A)(ii), a legally adopted child of an individual shall be treated as a child of such individual by blood.
Stock owned, directly or indirectly, by or for a partnership or estate shall be considered as owned proportionately by its partners or beneficiaries.
If 50 percent or more in value of the stock in a corporation is owned, directly or indirectly, by or for any person, such person shall be considered as owning the stock owned, directly or indirectly, by or for such corporation, in that proportion which the value of the stock which such person so owns bears to the value of all the stock in such corporation.
Stock owned, directly or indirectly, by or for a partner or a beneficiary of an estate shall be considered as owned by the partnership or estate.
If 50 percent or more in value of the stock in a corporation is owned, directly or indirectly, by or for any person, such corporation shall be considered as owning the stock owned, directly or indirectly, by or for such person.
If any person has an option to acquire stock, such stock shall be considered as owned by such person. For purposes of this paragraph, an option to acquire such an option, and each one of a series of such options, shall be considered as an option to acquire such stock.
Except as provided in subparagraphs (B) and (C), stock constructively owned by a person by reason of the application of paragraph (1), (2), (3), or (4), shall, for purposes of applying paragraphs (1), (2), (3), and (4), be considered as actually owned by such person.
Stock constructively owned by an individual by reason of the application of paragraph (1) shall not be considered as owned by him for purposes of again applying paragraph (1) in order to make another the constructive owner of such stock.
Stock constructively owned by a partnership, estate, trust, or corporation by reason of the application of paragraph (3) shall not be considered as owned by it for purposes of applying paragraph (2) in order to make another the constructive owner of such stock.
For purposes of this paragraph, if stock may be considered as owned by an individual under paragraph (1) or (4), it shall be considered as owned by him under paragraph (4).
2005—Subsec. (b)(8). Pub. L. 109–135 substituted “section 6038(e)(2)” for “section 6038(d)(2)”.
1997—Subsec. (b)(8). Pub. L. 105–34 substituted “6038(d)(2)” for “6038(d)(1)”.
1986—Subsec. (b)(5). Pub. L. 99–514 substituted “382(l)(3)” for “382(a)(3)”.
1984—Subsec. (a)(5)(E). Pub. L. 98–369, § 721(j), added subpar. (E).
Subsec. (b)(4). Pub. L. 98–369, § 712(k)(5)(E), substituted “section 338(h)(3) (defining purchase)” for “section 338(h)(3)(B) (relating to purchase of stock from subsidiaries, etc.)”.
1982—Subsec. (b)(4). Pub. L. 97–248 substituted “section 338(h)(3)(B) (relating to purchase of stock from subsidiaries, etc.)” for “section 334(b)(3)(C) (relating to basis of property received in certain liquidations of subsidiaries)”.
1964—Subsec. (a). Pub. L. 88–554, § 4(a), struck out sidewise attribution by providing that when stock is attributed to a partnership, estate, trust, or corporation from a partner, shareholder, or beneficiary, this stock is not to be attributed again to another partner, beneficiary, or shareholder.
Subsec. (b)(7), (8). Pub. L. 88–554, § 4(b)(2), added par. (7) and redesignated former par. (7) as (8).
1962—Subsec. (b)(7). Pub. L. 87–834 added par. (7).
1960—Subsec. (b)(6). Pub. L. 86–779 added par. (6).
Pub. L. 105–34, title XI, § 1142(f),
Amendment by Pub. L. 99–514 applicable to any ownership change after
Amendment by section 712(k)(5)(E) of Pub. L. 98–369 not applicable to any qualified stock purchase where the acquisition date is before
Amendment by section 712(k)(5)(E) of Pub. L. 98–369 effective as if included in the provision of the Tax Equity and Fiscal Responsibility Act of 1982, Pub. L. 97–248, to which such amendment relates, see section 715 of Pub. L. 98–369, set out as a note under section 31 of this title.
Amendment by section 721(j) of Pub. L. 98–369 effective as if included in the Subchapter S Revision Act of 1982, Pub. L. 97–354, see section 721(y)(1) of Pub. L. 98–369, set out as a note under section 1361 of this title.
Amendment by Pub. L. 97–248 applicable to any target corporation with respect to which the acquisition date occurs after
Pub. L. 88–554, § 4(c),
Amendment by Pub. L. 86–779 applicable with respect to taxable years of real estate investment trusts beginning after