Sec. 2 5-year carryback for low-income housing tax credit (a) In general— Section 39(a)(3) of the Internal Revenue Code of 1986 is amended— ⋯ (1) in the heading, by striking “ marginal oil and gas well production credit” and inserting “certain credits”, ⋯ (2) by inserting “or the low-income housing tax credit allowed under section 42” after “well production credit” in the matter preceding subparagraph (A), and ⋯ (3) in subparagraph (A), by inserting “or the low-income housing tax credit, as applicable” after “well production credit”. ⋯ (b) Effective date— The amendments made by this section shall apply to taxable years beginning after the date of the enactment of this Act. ⋯