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26 U.S.C. § 15 — Effect of changes
Federal law — U.S. Code and appendices · legal_authorities
**(a) General rule** If any rate of tax imposed by this chapter changes, and if the taxable year includes the effective date of the change (unless that date is the first day of the taxable year), then—
(1) tentative taxes shall be computed by applying the rate for the period before the effective date of the change, and the rate for the period on and after such date, to the taxable income for the entire taxable year; and
(2) the tax for such taxable year shall be the sum of that proportion of each tentative tax which the number of days in each period bears to the number of days in the entire taxable year.
**(b) Repeal of tax** For purposes of subsection (a)—
(1) if a tax is repealed, the repeal shall be considered a change of rate; and
(2) the rate for the period after the repeal shall be zero.
**(c) Effective date of change** For purposes of subsections (a) and (b)—
(1) if the rate changes for taxable years “beginning after” or “ending after” a certain date, the following day shall be considered the effective date of the change; and
(2) if a rate changes for taxable years “beginning on or after” a certain date, that date shall be considered the effective date of the change.
**(d) Section not to apply to inflation adjustments** This section shall not apply to any change in rates under subsection (f) of section 1 (relating to adjustments in tax tables so that inflation will not result in tax increases).
**(e) References to highest rate** If the change referred to in subsection (a) involves a change in the highest rate of tax imposed by section 1 or 11(b), any reference in this chapter to such highest rate (other than in a provision imposing a tax by reference to such rate) shall be treated as a reference to the weighted average of the highest rates before and af
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Source file: Laws/federal/codes/united-states-code/title-26/section-15-effect-of-changes--7824141a00.md
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Source location: Title 26, Chapter 1, § 15; chapter-001-normal-taxes-and-surtaxes.md
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**(a) General rule** If any rate of tax imposed by this chapter changes, and if the taxable year includes the effective date of the change (unless that date is the first day of the taxable year), then—
(1) tentative taxes shall be computed by applying the rate for the period before the effective date of the change, and the rate for the period on and after such date, to the taxable income for the entire taxable year; and
(2) the tax for such taxable year shall be the sum of that proportion of each tentative tax which the number of days in each period bears to the number of days in the entire taxable year.
**(b) Repeal of tax** For purposes of subsection (a)—
(1) if a tax is repealed, the repeal shall be considered a change of rate; and
(2) the rate for the period after the repeal shall be zero.
**(c) Effective date of change** For purposes of subsections (a) and (b)—
(1) if the rate changes for taxable years “beginning after” or “ending after” a certain date, the following day shall be considered the effective date of the change; and
(2) if a rate changes for taxable years “beginning on or after” a certain date, that date shall be considered the effective date of the change.
**(d) Section not to apply to inflation adjustments** This section shall not apply to any change in rates under subsection (f) of section 1 (relating to adjustments in tax tables so that inflation will not result in tax increases).
**(e) References to highest rate** If the change referred to in subsection (a) involves a change in the highest rate of tax imposed by section 1 or 11(b), any reference in this chapter to such highest rate (other than in a provision imposing a tax by reference to such rate) shall be treated as a reference to the weighted average of the highest rates before and after the change determined on the basis of the respective portions of the taxable year before the date of the change and on or after the date of the change.
**(f) Rate reductions enacted by Economic Growth and Tax Relief Reconciliation Act of 2001** This section shall not apply to any change in rates under subsection (i) of section 1 (relating to rate reductions after 2000).
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Federal law — U.S. Code and appendices · legal_authorities
**(a) Married individuals filing joint returns and surviving spouses** There is hereby imposed on the taxable income of—
(1) every married individual (as defined in section 7703) who makes a single return jointly with his spouse under section 6013, and
(2) every surviving spouse (as defined in section 2(a)),
a tax determined in accordance with the following table: If taxable income is:The tax is: Not over $36,90015% of taxable income. Over $36,900 but not over $89,150$5,535, plus 28% of the excess over $36,900. Over $89,150 but not over $140,000$20,165, plus 31% of the excess over $89,150. Over $140,000 but not over $250,000$35,928.50, plus 36% of the excess over $140,000. Over $250,000$75,528.50, plus 39.6% of the excess over $250,000.
**(b) Heads of households** There is hereby imposed on the taxable income of every head of a household (as defined in section 2(b)) a tax determined in accordance with the following table: If taxable income is:The tax is: Not over $29,60015% of taxable income. Over $29,600 but not over $76,400$4,440, plus 28% of the excess over $29,600. Over $76,400 but not over $127,500$17,544, plus 31% of the excess over $76,400. Over $127,500 but not over $250,000$33,385, plus 36% of the excess over $127,500. Over $250,000$77,485, plus 39.6% of the excess over $250,000.
**(c) Unmarried individuals (other than surviving spouses and heads of households)** There is hereby imposed on the taxable income of every individual (other than a surviving spouse as defined in section 2(a) or the head of a household as defined in section 2(b)) who is not a married individual (as defined in section 7703) a tax determined in accordance with the following table: If taxable income is:The tax is: Not over $22,10015% of taxable income. Over $22,100 but not over $53,50
Source: Supplied U.S. Code snapshot — release unconfirmed · 26 U.S.C. § 1
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Federal law — U.S. Code and appendices · legal_authorities
**(a) Corporations in general** A tax is hereby imposed for each taxable year on the taxable income of every corporation.
**(b) Amount of tax** The amount of the tax imposed by subsection (a) shall be 21 percent of taxable income.
**(c) Exceptions** Subsection (a) shall not apply to a corporation subject to a tax imposed by—
(1) section 594 (relating to mutual savings banks conducting life insurance business),
(2) subchapter L (sec. 801 and following, relating to insurance companies), or
(3) subchapter M (sec. 851 and following, relating to regulated investment companies and real estate investment trusts).
**(d) Foreign corporations** In the case of a foreign corporation, the taxes imposed by subsection (a) and section 55 shall apply only as provided by section 882.
Source: Supplied U.S. Code snapshot — release unconfirmed · 26 U.S.C. § 11
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Federal law — U.S. Code and appendices · legal_authorities
**(a) Allowance of credit**
(1) **In general** — In the case of an individual for which there are 1 or more qualifying individuals (as defined in subsection (b)(1)) with respect to such individual, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the applicable percentage of the employment-related expenses (as defined in subsection (b)(2)) paid by such individual during the taxable year.
(2) **Applicable percentage defined** — For purposes of paragraph (1), the term “applicable percentage” means 50 percent—
(A) reduced (but not below 35 percent) by 1 percentage point for each $2,000 or fraction thereof by which the taxpayer’s adjusted gross income for the taxable year exceeds $15,000, and
(B) further reduced (but not below 20 percent) by 1 percentage point for each $2,000 ($4,000 in the case of a joint return) or fraction thereof by which the taxpayer’s adjusted gross income for the taxable year exceeds $75,000 ($150,000 in the case of a joint return).
**(b) Definitions of qualifying individual and employment-related expenses** For purposes of this section—
(1) **Qualifying individual** — The term “qualifying individual” means—
(A) a dependent of the taxpayer (as defined in section 152(a)(1)) who has not attained age 13,
(B) a dependent of the taxpayer (as defined in section 152, determined without regard to subsections (b)(1), (b)(2), and (d)(1)(B)) who is physically or mentally incapable of caring for himself or herself and who has the same principal place of abode as the taxpayer for more than one-half of such taxable year, or
(C) the spouse of the taxpayer, if the spouse is physically or mentally incapable of caring for himself or herself and who has the same principal place of abod
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Federal law — U.S. Code and appendices · legal_authorities
**(a) Definition** For purposes of this title—
(1) **General rule** — Except as otherwise provided in this subsection, the term “unrelated business taxable income” means the gross income derived by any organization from any unrelated trade or business (as defined in section 513) regularly carried on by it, less the deductions allowed by this chapter which are directly connected with the carrying on of such trade or business, both computed with the modifications provided in subsection (b).
(2) **Special rule for foreign organizations** — In the case of an organization described in section 511 which is a foreign organization, the unrelated business taxable income shall be—
(A) its unrelated business taxable income which is derived from sources within the United States and which is not effectively connected with the conduct of a trade or business within the United States, plus
(B) its unrelated business taxable income which is effectively connected with the conduct of a trade or business within the United States.
(3) **Special rules applicable to organizations described in paragraph (7), (9), or (17) of section 501(c)**
(A) *General rule* — In the case of an organization described in paragraph (7), (9), or (17) of section 501(c), the term “unrelated business taxable income” means the gross income (excluding any exempt function income), less the deductions allowed by this chapter which are directly connected with the production of the gross income (excluding exempt function income), both computed with the modifications provided in paragraphs (6), (10), (11), and (12) of subsection (b). For purposes of the preceding sentence, the deductions provided by sections 243 and 245 (relating to dividends received by corporations) shall be treated as not directly connected
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Federal law — U.S. Code and appendices · legal_authorities
Page 65
TITLE 26—INTERNAL REVENUE CODE
§ 15
Pub. L. 88–272, set out as a note under section 1503 of
this title.
APPLICABILITY
OF
CERTAIN
AMENDMENTS
BY
PUBLIC
LAW 99–514 IN RELATION TO TREATY OBLIGATIONS OF
UNITED STATES
For applicability of amendment by Pub. L. 99–514 not-
withstanding any treaty obligation of the United
States in effect on Oct. 22, 1986, see section 1012(aa)(2)
of Pub. L. 100–647, set out as a note under section 861 of
this title.
PART III—CHANGES IN RATES DURING A
TAXABLE YEAR
Sec.
15.
Effect of changes.
Editorial Notes
AMENDMENTS
1984—Pub. L. 98–369, div. A, title IV, § 474(b)(3), July
18, 1984, 98 Stat. 830, substituted ‘‘15. Effect of changes’’
for ‘‘21. Effect of changes’’.
§ 15. Effect of changes
(a) General rule
If any rate of tax imposed by this chapter
changes, and if the taxable year includes the ef-
fective date of the change (unless that date is
the first day of the taxable year), then—
(1) tentative taxes shall be computed by ap-
plying the rate for the period before the effec-
tive date of the change, and the rate for the
period on and after such date, to the taxable
income for the entire taxable year; and
(2) the tax for such taxable year shall be the
sum of that proportion of each tentative tax
which the number of days in each period bears
to the number of days in the entire taxable
year.
(b) Repeal of tax
For purposes of subsection (a)—
(1) if a tax is repealed, the repeal shall be
considered a change of rate; and
(2) the rate for the period after the repeal
shall be zero.
(c) Effective date of change
For purposes of subsections (a) and (b)—
(1) if the rate changes for taxable years ‘‘be-
ginning after’’ or ‘‘ending after’’ a certain
date, the following day shall be considered the
effective date of
Source: Supplied 2024 U.S. Code historical extraction · 26 U.S.C. § 15
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