§ 63.
(c)
Standard deduction
For purposes of this subtitle—
(1)
In general
Except as otherwise provided in this subsection, the term “standard deduction” means the sum of—
(A)
the basic standard deduction, and
(B)
the additional standard deduction.
(2)
Basic standard deduction
For purposes of paragraph (1), the basic standard deduction is—
(A)
200 percent of the dollar amount in effect under subparagraph (C) for the taxable year in the case of—
(ii)
a surviving spouse (as defined in section 2(a)),
(B)
$4,400 in the case of a head of household (as defined in section 2(b)), or
(C)
$3,000 in any other case.
(3)
Additional standard deduction for aged and blind
(4)
Adjustments for inflation
In the case of any taxable year beginning in a calendar year after 1988, each dollar amount contained in paragraph (2)(B), (2)(C), or (5) or subsection (f) shall be increased by an amount equal to—
(A)
such dollar amount, multiplied by
(B)
the cost-of-living adjustment determined under section 1(f)(3) for the calendar year in which the taxable year begins, by substituting for “calendar year 2016” in subparagraph (A)(ii) thereof—
(i)
“calendar year 1987” in the case of the dollar amounts contained in paragraph (2)(B), (2)(C), or (5)(A) or subsection (f), and
(ii)
“calendar year 1997” in the case of the dollar amount contained in paragraph (5)(B).
(5)
Limitation on basic standard deduction in the case of certain dependents
In the case of an individual with respect to whom a deduction under section 151 is allowable to another taxpayer for a taxable year beginning in the calendar year in which the individual’s taxable year begins, the basic standard deduction applicable to such individual for such individual’s taxable year shall not exceed the greater of—
(B)
the sum of $250 and such individual’s earned income.
(6)
Certain individuals, etc., not eligible for standard deduction
In the case of—
(A)
a married individual filing a separate return where either spouse itemizes deductions,
(B)
a nonresident alien individual,
(C)
an individual making a return under section 443(a)(1) for a period of less than 12 months on account of a change in his annual accounting period, or
(D)
an estate or trust, common trust fund, or partnership,
the standard deduction shall be zero.
(7)
Special rules for taxable years 2018 through 2025
In the case of a taxable year beginning after December 31, 2017, and before January 1, 2026—
(A)
Increase in standard deduction
Paragraph (2) shall be applied—
(i)
by substituting “$18,000” for “$4,400” in subparagraph (B), and
(ii)
by substituting “$12,000” for “$3,000” in subparagraph (C).
(B)
Adjustment for inflation
(ii)
Adjustment of increased amounts
In the case of a taxable year beginning after 2018, the $18,000 and $12,000 amounts in subparagraph (A) shall each be increased by an amount equal to—
(I)
such dollar amount, multiplied by
(II)
the cost-of-living adjustment determined under section 1(f)(3) for the calendar year in which the taxable year begins, determined by substituting “2017” for “2016” in subparagraph (A)(ii) thereof.
If any increase under this clause is not a multiple of $50, such increase shall be rounded to the next lowest multiple of $50.
([Aug. 16, 1954, ch. 736], [68A Stat. 18]; [Pub. L. 95–30, title I, § 102(a)], May 23, 1977, [91 Stat. 135]; [Pub. L. 95–600, title I, § 101(b)], Nov. 6, 1978, [92 Stat. 2769]; [Pub. L. 97–34, title I], §§ 104(b), 111(b)(4), 121(b), (c)(2), Aug. 13, 1981, [95 Stat. 189], 194, 196, 197; [Pub. L. 99–514, title I, § 102(a)], title XII, § 1272(d)(6), Oct. 22, 1986, [100 Stat. 2099], 2594; [Pub. L. 100–647, title I, § 1001(b)(1)], Nov. 10, 1988, [102 Stat. 3349]; [Pub. L. 101–508, title XI], §§ 11101(d)(1)(D), 11801(a)(4), Nov. 5, 1990, [104 Stat. 1388–405], 1388–520; [Pub. L. 103–66, title XIII, § 13201(b)(3)(D)], Aug. 10, 1993, [107 Stat. 459]; [Pub. L. 105–34, title XII, § 1201(a)], Aug. 5, 1997, [111 Stat. 993]; [Pub. L. 107–16, title III, § 301(a)], (b), (c)(2), June 7, 2001, [115 Stat. 53], 54; [Pub. L. 107–147, title IV, § 411(e)], Mar. 9, 2002, [116 Stat. 46]; [Pub. L. 108–27, title I, § 103(a)], May 28, 2003, [117 Stat. 754]; [Pub. L. 108–311, title I, § 101(b)], Oct. 4, 2004, [118 Stat. 1167]; [Pub. L. 110–289, div. C, title I, § 3012(a)], (b), July 30, 2008, [122 Stat. 2891], 2892; [Pub. L. 110–343, div. C, title II, § 204(a)], title VII, § 706(b)(1), (2), Oct. 3, 2008, [122 Stat. 3865], 3922; [Pub. L. 111–5, div. B, title I, § 1008(c)], Feb. 17, 2009, [123 Stat. 318]; [Pub. L. 113–295, div. A, title II, § 221(a)(13)], Dec. 19, 2014, [128 Stat. 4039]; [Pub. L. 115–97, title I], §§ 11002(d)(1)(K), 11011(b)(2), (3), 11021(a), Dec. 22, 2017, [131 Stat. 2060], 2070, 2072; [Pub. L. 115–141, div. T, § 101(a)(2)(A)], Mar. 23, 2018, [132 Stat. 1155]; [Pub. L. 116–260, div. EE, title II, § 212(b)], Dec. 27, 2020, [134 Stat. 3067].)