An estate or trust shall be allowed the credit against tax for taxes imposed by foreign countries and possessions of the United States, to the extent allowed by section 901, only in respect of so much of the taxes described in such section as is not properly allocable under such section to the beneficiaries.

A qualified disability trust shall be allowed a deduction equal to the exemption amount under section 151(d), determined—

(1) Estates An estate shall be allowed a deduction of $600.

A qualified disability trust shall be allowed a deduction equal to the exemption amount under section 151(d), determined—

(A) In general Except as otherwise provided in this paragraph, a trust shall be allowed a deduction of $100.

(B) Trusts distributing income currently A trust which, under its governing instrument, is required to distribute all of its income currently shall be allowed a deduction of $300.

(C) Disability trusts (i) In generalA qualified disability trust shall be allowed a deduction equal to the exemption amount under section 151(d), determined— (I) by treating such trust as an individual described in section 68(b)(1)(C), and (II) by applying section 67(e) (without the reference to section 642(b)) for purposes of determining the adjusted gross income of the trust. (ii) Qualified disability trustFor purposes of clause (i), the term “qualified disability trust” means any trust if— (I) such trust is a disability trust described in subsection (c)(2)(B)(iv) of section 1917 of the Social Security Act (42 U.S.C. 1396p), and (II) all of the beneficiaries of the trust as of the close of the taxable year are determined by the Commissioner of Social Security to have been disabled (within the meaning of section 1614(a)(3) of the Social Security Act, 42 U.S.C. 1382c(a)(3)) for some portion of such year.  A trust shall not fail to meet the requirements of subclause (II) merely because the corpus of the trust may revert to a person who is not so disabled after the trust ceases to have any beneficiary who is so disabled. (iii) Years when personal exemption amount is zero (I) In general In the case of any taxable year in which the exemption amount under section 151(d) is zero, clause (i) shall be applied by substituting “$4,150” for “the exemption amount under section 151(d)”. (II) Inflation adjustment In the case of any taxable year beginning in a calendar year after 2018, the $4,150 amount in subparagraph (A) shall be increased in the same manner as provided in section 6334(d)(4)(C).

(3) Deductions in lieu of personal exemption The deductions allowed by this subsection shall be in lieu of the deductions allowed under section 151 (relating to deduction for personal exemption).

In the case of an estate, and in the case of a trust (other than a trust meeting the specifications of subpart B) required by the terms of its governing instrument to set aside amounts which was—

(1) General rule In the case of an estate or trust (other than a trust meeting the specifications of subpart B), there shall be allowed as a deduction in computing its taxable income (in lieu of the deduction allowed by section 170(a), relating to deduction for charitable, etc., contributions and gifts) any amount of the gross income, without limitation, which pursuant to the terms of the governing instrument is, during the taxable year, paid for a purpose specified in section 170(c) (determined without regard to section 170(c)(2)(A)). If a charitable contribution is paid after the close of such taxable year and on or before the last day of the year following the close of such taxable year, then the trustee or administrator may elect to treat such contribution as paid during such taxable year. The election shall be made at such time and in such manner as the Secretary prescribes by regulations.

In the case of an estate, and in the case of a trust (other than a trust meeting the specifications of subpart B) required by the terms of its governing instrument to set aside amounts which was—

(A) created on or before October 9, 1969, if— (i) an irrevocable remainder interest is transferred to or for the use of an organization described in section 170(c), or (ii) the grantor is at all times after October 9, 1969, under a mental disability to change the terms of the trust; or

(B) established by a will executed on or before October 9, 1969, if— (i) the testator dies before October 9, 1972, without having republished the will after October 9, 1969, by codicil or otherwise, (ii) the testator at no time after October 9, 1969, had the right to change the portions of the will which pertain to the trust, or (iii) the will is not republished by codicil or otherwise before October 9, 1972, and the testator is on such date and at all times thereafter under a mental disability to republish the will by codicil or otherwise,

(3) Pooled income funds In the case of a pooled income fund (as defined in paragraph (5)), there shall also be allowed as a deduction in computing its taxable income any amount of the gross income attributable to gain from the sale of a capital asset held for more than 1 year, without limitation, which pursuant to the terms of the governing instrument is, during the taxable year, permanently set aside for a purpose specified in section 170(c).

(4) Adjustments To the extent that the amount otherwise allowable as a deduction under this subsection consists of gain described in section 1202(a), proper adjustment shall be made for any exclusion allowable to the estate or trust under section 1202. In the case of a trust, the deduction allowed by this subsection shall be subject to section 681 (relating to unrelated business income).

For purposes of paragraph (3), a pooled income fund is a trust—

(A) to which each donor transfers property, contributing an irrevocable remainder interest in such property to or for the use of an organization described in section 170(b)(1)(A) (other than in clauses (vii) or (viii)), and retaining an income interest for the life of one or more beneficiaries (living at the time of such transfer),

(B) in which the property transferred by each donor is commingled with property transferred by other donors who have made or make similar transfers,

(C) which cannot have investments in securities which are exempt from the taxes imposed by this subtitle,

(D) which includes only amounts received from transfers which meet the requirements of this paragraph,

(E) which is maintained by the organization to which the remainder interest is contributed and of which no donor or beneficiary of an income interest is a trustee, and

(F) from which each beneficiary of an income interest receives income, for each year for which he is entitled to receive the income interest referred to in subparagraph (A), determined by the rate of return earned by the trust for such year.

(6) Taxable private foundations In the case of a private foundation which is not exempt from taxation under section 501(a) for the taxable year, the provisions of this subsection shall not apply and the provisions of section 170 shall apply.

The benefit of the deduction for net operating losses provided by section 172 shall be allowed to estates and trusts under regulations prescribed by the Secretary.

An estate or trust shall be allowed the deduction for depreciation and depletion only to the extent not allowable to beneficiaries under sections 167(d) and 611(b).

The benefit of the deductions for amortization provided by sections 169 and 197 shall be allowed to estates and trusts in the same manner as in the case of an individual. The allowable deduction shall be apportioned between the income beneficiaries and the fiduciary under regulations prescribed by the Secretary.

Amounts allowable under section 2053 or 2054 as a deduction in computing the taxable estate of a decedent shall not be allowed as a deduction (or as an offset against the sales price of property in determining gain or loss) in computing the taxable income of the estate or of any other person, unless there is filed, within the time and in the manner and form prescribed by the Secretary, a statement that the amounts have not been allowed as deductions under section 2053 or 2054 and a waiver of the right to have such amounts allowed at any time as deductions under section 2053 or 2054. Rules similar to the rules of the preceding sentence shall apply to amounts which may be taken into account under section 2621(a)(2) or 2622(b). This subsection shall not apply with respect to deductions allowed under part II (relating to income in respect of decedents).

If on the termination of an estate or trust, the estate or trust has—

(1) a net operating loss carryover under section 172 or a capital loss carryover under section 1212, or

(2) for the last taxable year of the estate or trust deductions (other than the deductions allowed under subsections (b) or (c)) in excess of gross income for such year,

In the case of a cemetery perpetual care fund which—

(1) was created pursuant to local law by a taxable cemetery corporation for the care and maintenance of cemetery property, and

(2) is treated for the taxable year as a trust for purposes of this subchapter,

(Aug. 16, 1954, ch. 736, 68A Stat. 215; Pub. L. 87–834, § 13(c)(2)(A), Oct. 16, 1962, 76 Stat. 1034; Pub. L. 88–272, title II, § 201(d)(6)(A), (B), Feb. 26, 1964, 78 Stat. 32; Pub. L. 89–621, § 2(a), Oct. 4, 1966, 80 Stat. 872; Pub. L. 91–172, title II, § 201(b), title VII, § 704(b)(2), Dec. 30, 1969, 83 Stat. 558, 669; Pub. L. 92–178, title III, § 303(c)(4), title VII, §§ 701(b), 702(b), Dec. 10, 1971, 85 Stat. 522, 561, 562; Pub. L. 94–455, title XIV, § 1402(b)(1)(J), (2), title XIX, §§ 1901(b)(1)(H)(i), 1906(b)(13)(A), 1951(c)(2)(B), title XX, § 2009(d), title XXI, § 2124(a)(3)(B), Oct. 4, 1976, 90 Stat. 1732, 1791, 1834, 1840, 1896, 1917; Pub. L. 94–528, § 1(a), Oct. 17, 1976, 90 Stat. 2483; Pub. L. 95–30, title I, § 101(d)(9), May 23, 1977, 91 Stat. 134; Pub. L. 95–600, title I, § 113(a)(2)(B), Nov. 6, 1978, 92 Stat. 2778; Pub. L. 97–34, title II, § 212(d)(2)(D), Aug. 13, 1981, 95 Stat. 239; Pub. L. 98–369, div. A, title IV, § 474(r)(17), title X, § 1001(b)(8), (e), July 18, 1984, 98 Stat. 843, 1011, 1012; Pub. L. 99–514, title I, § 112(b)(2), title III, § 301(b)(6), title VI, § 612(b)(3), Oct. 22, 1986, 100 Stat. 2108, 2217, 2250; Pub. L. 101–239, title VII, § 7811(j)(3), Dec. 19, 1989, 103 Stat. 2411; Pub. L. 101–508, title XI, §§ 11801(c)(6)(B), 11812(b)(9), Nov. 5, 1990, 104 Stat. 1388–524, 1388–535; Pub. L. 103–66, title XIII, §§ 13113(d)(2), 13261(f)(2), Aug. 10, 1993, 107 Stat. 429, 539; Pub. L. 104–188, title I, § 1704(t)(8), Aug. 20, 1996, 110 Stat. 1887; Pub. L. 107–134, title I, § 116(a), Jan. 23, 2002, 115 Stat. 2439; Pub. L. 113–295, div. A, title II, § 202(a), Dec. 19, 2014, 128 Stat. 4024; Pub. L. 115–97, title I, § 11041(b), Dec. 22, 2017, 131 Stat. 2082; Pub. L. 115–141, div. U, title IV, § 401(a)(137), Mar. 23, 2018, 132 Stat. 1190.)