Source: https://www.charitableplanning.com/library/documents/497601
Timestamp: 2019-04-19 20:57:01+00:00

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(B) who maintains as his home a household which constitutes for the taxable year the principal place of abode (as a member of such household) of a dependent (i) who (within the meaning of section 152, determined without regard to subsections (b)(1), (b)(2), and (d)(1)(B) thereof) is a son, stepson, daughter, or stepdaughter of the taxpayer, and (ii) with respect to whom the taxpayer is entitled to a deduction for the taxable year under section 151.
For purposes of this paragraph, an individual shall be considered as maintaining a household only if over half of the cost of maintaining the household during the taxable year is furnished by such individual.
(B) unless, for the taxpayer's taxable year during which his spouse died, a joint return could have been made under the provisions of section 6013 (without regard to subsection (a)(3) thereof).
(B) except in the case of the combat zone designated for purposes of the Vietnam conflict, the date which is 2 years after the date designated under section 112 as the date of termination of combatant activities in that zone.
(B) maintains a household which constitutes for such taxable year the principal place of abode of the father or mother of the taxpayer, if the taxpayer is entitled to a deduction for the taxable year for such father or mother under section 151.
(C) a taxpayer shall be considered as married at the close of his taxable year if his spouse (other than a spouse described in subparagraph (B)) died during the taxable year.
(ii) paragraph (3) of section 152(d).
For purposes of this part, an individual shall be treated as not married at the close of the taxable year if such individual is so treated under the provisions of section 7703(b).
For definition of taxable income, see section 63.
2005—Subsec. (b)(2)(C). Pub. L. 109–135 substituted "subparagraph (B)" for "subparagraph (C)".
2004—Subsec. (a)(1)(B)(i). Pub. L. 108–311, §207(1), inserted ", determined without regard to subsections (b)(1), (b)(2), and (d)(1)(B) thereof" after "section 152".
Subsec. (b)(1)(A)(i). Pub. L. 108–311, §202(a), amended cl. (i) generally. Prior to amendment, cl. (i) read as follows: "a son, stepson, daughter, or stepdaughter of the taxpayer, or a descendant of a son or daughter of the taxpayer, but if such son, stepson, daughter, stepdaughter, or descendant is married at the close of the taxpayer's taxable year, only if the taxpayer is entitled to a deduction for the taxable year for such person under section 151 (or would be so entitled but for paragraph (2) or (4) of section 152(e)), or".
Subsec. (b)(2). Pub. L. 108–311, §202(b)(1), redesignated subpars. (B) to (D) as (A) to (C), respectively, and struck out former subpar. (A) which read as follows: "a legally adopted child of a person shall be considered a child of such person by blood;".
"(ii) subsection (c) of section 152."
1988—Subsec. (d). Pub. L. 100–647 substituted "the taxes imposed by sections 1 and 55" for "the tax imposed by section 1".
"(ii) 2 years after the date designated under section 112 as the date of termination of combatant activities in that zone, in the case of any combat zone other than that referred to in clause (i)."
Subsec. (c). Pub. L. 99–514, §1301(j)(10), substituted "section 7703(b)" for "section 143(b)".
1984—Subsec. (b)(1)(A). Pub. L. 98–369, §423(c)(2)(A), substituted "which constitutes for more than one-half of such taxable year" for "which constitutes for such taxable year".
Subsec. (b)(1)(A)(i). Pub. L. 98–369, §423(c)(2)(B), inserted "(or would be so entitled but for paragraph (2) or (4) of section 152(e))".
1983—Subsec. (a)(3)(B)(i). Pub. L. 97–448 substituted "December 31, 1982" for "January 2, 1978".
1976—Subsec. (a)(3)(B). Pub. L. 94–569 substituted "the date which is" for "the date which is 2 years after" in provisions preceding cl. (i), substituted "January 2, 1978" for "the date of the enactment of this paragraph" in cl. (i), and substituted "2 years after the date" for "the date" in cl. (ii).
Subsec. (b)(3)(B)(ii). Pub. L. 94–455, §1901(b)(9), redesignated cl. (iii) as (ii) and struck out former cl. (ii) which provided that an individual who was a dependent solely by reason of par. (10) of section 152(a) would not be considered as a head of a household.
Subsec. (c). Pub. L. 94–455, §1901(a)(1), substituted "shall be treated as not married at the close of the taxable year" for "shall not be considered as married".
1975—Subsec. (a)(3). Pub. L. 93–597 added par. (3).
1969—Subsec. (a). Pub. L. 91–172 redesignated subsec. (b) as (a). See sec. 1(a) of this title.
Subsec. (b). Pub. L. 91–172 redesignated provisions of former section 1(b)(2) to (4) of this title as subsec. (b). Former subsec. (b) redesignated (a), with minor changes.
Subsec. (c). Pub. L. 91–172 added subsec. (c).
Subsec. (d). Pub. L. 91–172 redesignated as subsec. (d) provisions of former section 1(d) with minor changes.
Subsec. (e). Pub. L. 91–172 redesignated as subsec. (e) provisions of former section 1(e).
1964—Subsec. (a). Pub. L. 88–272 inserted reference to section 141.
Pub. L. 108–311, title II, §208, Oct. 4, 2004, 118 Stat. 1178, provided that: "The amendments made by this title [amending this section and sections 21, 24, 25B, 32, 42, 51, 72, 105, 120, 125, 129, 132, 151 to 153, 170, 213, 220, 221, 529, 2032A, 2057, 7701, 7702B, and 7703 of this title] shall apply to taxable years beginning after December 31, 2004."
Amendment by section 1301(j)(10) of Pub. L. 99–514 applicable to bonds issued after Aug. 15, 1986, except as otherwise provided, see sections 1311 to 1318 of Pub. L. 99–514, set out as an Effective Date; Transitional Rules note under section 141 of this title.
Pub. L. 99–514, title XVII, §1708(b), Oct. 22, 1986, 100 Stat. 2783, provided that: "The amendments made by this section [amending this section and sections 692, 6013, and 7508 of this title] shall apply to taxable years beginning after December 31, 1982."
Pub. L. 98–369, div. A, title IV, §423(d), July 18, 1984, 98 Stat. 801, provided that: "The amendments made by this section [amending this section and sections 43, 44A, 105, 143, 152, and 213 of this title] shall apply to taxable years beginning after December 31, 1984."
Pub. L. 94–455, title XIX, §1901(d), Oct. 4, 1976, 90 Stat. 1803, provided that: "Except as otherwise expressly provided in this section, the amendments made by this section [see Tables for classification] shall apply with respect to taxable years beginning after December 31, 1976. The amendments made by subsections (a)(29) and (b)(10) shall apply with respect to taxable years ending after the date of the enactment of this Act [Oct. 4, 1976]."
Amendment by Pub. L. 93–597 applicable to taxable years ending on or after Feb. 28, 1961, see section 3(c) of Pub. L. 93–597, set out as a note under section 6013 of this title.
Amendment by Pub. L. 91–172 applicable to taxable years beginning after Dec. 31, 1970, except that subsec. (c) is applicable to taxable years beginning after Dec. 31, 1969, see section 803(f) of Pub. L. 91–172, set out as a note under section 1 of this title.
Amendment by Pub. L. 88–272, except for purposes of section 21 of this title, effective with respect to taxable years beginning after Dec. 31, 1963, see section 131 of Pub. L. 88–272, set out as a note under section 1 of this title.

References: §207
 §202
 §202
 §1301
 §423
 §423
 §1901
 §1901
 §208
 §1708
 §423
 §1901