year beginning after 2020, the $120,000 amount in paragraph (2) of subsection (a) and the dollar amounts in subsection (c) shall each be increased by an amount equal to— (A) such dollar amount, multiplied by (B) the cost-of-living adjustment determined under section 1(f)(3) for the calendar year in which the taxable year begins, determined by substituting calendar year 2019 for calendar year 2016 in subparagraph (A)(ii) thereof. (2) Rounding If any dollar amount, after being increased under paragraph (1), is not a multiple of $100, such dollar amount shall be rounded to the next lowest multiple of $100. . (e) Credit To Be Refundable (1) In general The Internal Revenue Code of 1986 is amended— (A) by redesignating section 21 as section 36C, and (B) by moving section 36C, as so redesignated, from subpart A of part IV of subchapter A of chapter 1 to the location immediately before section 37 in subpart C of part IV of subchapter A of chapter 1. (2) Technical amendment (A) Section 23(f)(1) of the Internal Revenue Code of 1986 is amended by striking 21(e) and inserting 36C(e) . (B) Section 35(g)(6) of such Code is amended by striking 21(e) and inserting 36C(e) . (C) Section 36C(a)(1) of such Code (as redesignated by paragraph (1)) is amended by striking this chapter and inserting this subtitle . (D) Section 129(a)(2)(C) of such Code is amended by striking section 21(e) and inserting section 36C(e) . (E) Section 129(b)(2) of such Code is amended by striking section 21(d)(2) and inserting section 36C(d)(2) . (F) Section 129(e)(1) of such Code is amended by striking section 21(b)(2) and inserting section 36C(b)(2) . (G) Section 213(e) of such Code is amended by striking section 21 and inserting section 36C . (H) Section 6213(g)(2)(H) of such Code is amended by striking section 21 and inserting section 36C . (I) Section 6213(g)(2)(L) of such Code is amended by striking section 21, 24, or 32 and inserting section 24, 32, or 36C . (J) Section 1324(b)(2) of title 31, United States Code, is amended by inserting 36C, after