Energy efficient commercial buildings deduction repealed

(a) In general Part VI of subchapter B of chapter 1 is amended by striking section 179D (and by striking the item relating to such section in the table of sections for such part). (b) Conforming amendments (1) Section 263(a)(1) is amended by striking subparagraph (J). (2) Section 312(k)(3)(B) is amended to read as follows: (B) Treatment of amounts deductible under section 179, 179B, 179C, or 179E For purposes of computing the earnings and profits of a corporation, any amount deductible under section 179, 179B, 179C, or 179E shall be allowed as a deduction ratably over the period of 5 taxable years (beginning with the taxable year for which such amount is deductible under section 179, 179B, 179C, or 179E, as the case may be).. (3) Section 1016(a) is amended by striking paragraph (31). (4) Section 1245(a) is amended— (A) in paragraph (2)(C), by striking 179D,, and (B) in paragraph (3)(C), by striking 179D,. (c) Effective date The amendments made by this section shall apply to property placed in service after December 31, 2025.