Pub. L. 108-27, tit. I, sec. 104
ACCELERATION OF 10-PERCENT INDIVIDUAL INCOME TAX RATE BRACKET EXPANSION.
SEC. 104. ACCELERATION OF 10-PERCENT INDIVIDUAL INCOME TAX RATE BRACKET EXPANSION.(a) In General.—Clause (i) of section 1(i)(1)(B) (relating to the initial bracket amount) is amended by striking “($12,000 in the case of taxable years beginning before January 1, 2008)” and inserting “($12,000 in the case of taxable years beginning after December 31, 2004, and before January 1, 2008)”.(b) Inflation Adjustment.—Subparagraph (C) of section 1(i)(1) is amended to read as follows:“(C) Inflation adjustment.—In prescribing the tables under subsection (f) which apply with respect to taxable years beginning in calendar years after 2000—“(i) except as provided in clause (ii), the Secretary shall make no adjustment to the initial bracket amounts for any taxable year beginning before January 1, 2009,117 STAT. 755“(ii) there shall be an adjustment under subsection (f) of such amounts which shall apply only to taxable years beginning in 2004, and such adjustment shall be determined under subsection (f)(3) by substituting ‘2002’ for ‘1992’ in subparagraph (B) thereof,“(iii) the cost-of-living adjustment used in making adjustments to the initial bracket amounts for any taxable year beginning after December 31, 2008, shall be determined under subsection (f)(3) by substituting ‘2007’ for ‘1992’ in subparagraph (B) thereof, and“(iv) the adjustments under clauses (ii) and (iii) shall not apply to the amount referred to in subparagraph (B)(iii).If any amount after adjustment under the preceding sentence is not a multiple of $50, such amount shall be rounded to the next lowest multiple of $50.”.(c) Effective Date.—(1) In general.—The amendments made by this section shall apply to taxable years beginning after December 31, 2002.(2) Tables for 2003.—The Secretary of the Treasury shall modify each table which has been prescribed under section 1(f) of the Internal Revenue Code of 1986 for taxable years beginning in 2003 and which relates to the amendment made by subsection (a) to reflect such amendment.