new item: Sec. 25E. Interest on indebtedness secured by qualified residence. . (e) Effective date The amendments made by this section shall apply with respect to interest paid or accrued after December 31, 2017. 503. Deduction allowed for interest and taxes relating to land for dwelling purposes owned or leased by cooperative housing corporations (a) In general Subparagraph (B) of section 216(b)(1) of the Internal Revenue Code of 1986 is amended by inserting or land, after building, . (b) Effective date The amendment made by subsection (a) shall apply to amounts paid or accrued after December 31, 2016. 504. Use of mortgage interest savings to increase low-income housing tax credit (a) In general Subclause (I) of section 42(h)(3)(C)(ii) of the Internal Revenue Code of 1986 is amended by striking $1.75 and inserting $2.70 . (b) Inflation adjustment Subparagraph (H) of section 42(h)(3) of such Code is amended to read as follows: (H) Cost-of-living adjustment (i) In general In the case of a calendar year after 2016, the $2,000,000 amount in subparagraph (C) shall be increased by an amount equal to— (I) such dollar amount, multiplied by (II) the cost-of-living adjustment determined under section 1(f)(3) for such calendar year by substituting calendar year 2001 for calendar year 1992 in subparagraph (B) thereof. (ii) Per capita amount In the case of a calendar year after 2017, the $2.70 amount in subparagraph (C) shall be increased by an amount equal to— (I) such dollar amount, multiplied by (II) the cost-of-living adjustment determined under section 1(f)(3) for such calendar year by substituting calendar year 2016 for calendar year 1992 in subparagraph (B) thereof. (iii) Rounding (I) In the case of the $2,000,000 amount, any increase under clause (i) which is not a multiple of $5,000 shall be rounded to the next lowest multiple of $5,000. (II) In the case of the $2.70 amount, any increase under clause (ii) which is not a multiple of 5 cents shall be rounded to the next lowest multiple of 5 cents. . (c) Eligible basis