26 CFR § 1.102-1 - Gifts and inheritances.
(a) General rule. Property received as a gift, or received under a will or under statutes of descent and distribution, is not includible in gross income, although the income from such property is includible in gross income. An amount of principal paid under a marriage settlement is a gift. However, see section 71 and the regulations thereunder for rules relating to alimony or allowances paid upon divorce or separation. Section 102 does not apply to prizes and awards (see section 74 and § 1.74-1) nor to scholarships and fellowship grants (see section 117 and the regulations thereunder).
(b) Income from gifts and inheritances. The income from any property received as a gift, or under a will or statute of descent and distribution shall not be excluded from gross income under paragraph (a) of this section.
(c) Gifts and inheritances of income. If the gift, bequest, devise, or inheritance is of income from property, it shall not be excluded from gross income under paragraph (a) of this section. Section 102 provides a special rule for the treatment of certain gifts, bequests, devises, or inheritances which by their terms are to be paid, credited, or distributed at intervals. Except as provided in section 663(a)(1) and paragraph (d) of this section, to the extent any such gift, bequest, devise, or inheritance is paid, credited, or to be distributed out of income from property, it shall be considered a gift, bequest, devise, or inheritance of income from property. Section 102 provides the same treatment for amounts of income from property which is paid, credited, or to be distributed under a gift or bequest whether the gift or bequest is in terms of a right to payments at intervals (regardless of income) or is in terms of a right to income. To the extent the amounts in either case are paid, credited, or to be distributed at intervals out of income, they are not to be excluded under section 102 from the taxpayer's gross income.
(d) Effect of Subchapter J. Any amount required to be included in the gross income of a beneficiary under sections 652, 662, or 668 shall be treated for purposes of this section as a gift, bequest, devise, or inheritance of income from property. On the other hand, any amount excluded from the gross income of a beneficiary under section 663(a)(1) shall be treated for purposes of this section as property acquired by gift, bequest, devise, or inheritance.
(e) Income taxed to grantor or assignor. Section 102 is not intended to tax a donee upon the same income which is taxed to the grantor of a trust or assignor of income under section 61 or sections 671 through 677, inclusive.