1. Amendment of 1986 Code Except as otherwise expressly provided, whenever in this Act an amendment or repeal is expressed in terms of an amendment to, or repeal of, a section or other provision, the reference shall be considered to be made to a section or other provision of the Internal Revenue Code of 1986. 2. Expansion of earned income credit (a) Credit percentage; phaseout percentage The table contained in paragraph (1) of section 32(b) is amended to read as follows: In the case of an eligible individual with: The credit percentage is: The phaseout percentage is: 1 qualifying child 42.5 15.98 2 qualifying children 50 21.06 3 or more qualifying children 52.5 21.06 No qualifying children 20 15.98. . (b) Earned income amount; phaseout amount (1) In general The table contained in subparagraph (A) of section 32(b)(2) is amended to read as follows: In the case of an eligible individual with: The earned income amount is: The phaseout amount is: 1 qualifying child $10,180 $18,660 2 or more qualifying children $14,290 $18,660 No qualifying children $10,180 $11,380. . (2) Joint filers Subparagraph (B) of section 32(b)(2) is amended by striking $5,000 and inserting $5,690 . (3) Adjustment for inflation Paragraph (1) of section 32(j) is amended— (A) by striking after 2015 and inserting after 2018 ; (B) by striking subsections (b)(2)(A) and in subparagraph (B)(i) and inserting subsection ; (C) by striking the $5,000 amount in subsection (b)(2)(B) in subparagraph (B)(ii) and inserting amounts in subsection (b)(2) ; and (D) by striking calendar year 2008 in subparagraph (B)(ii) and inserting calendar year 2017 . (c) Age of eligible individual Clause (ii) of section 32(c)(1)(A) is amended— (1) by striking age 25 in subclause (II) and inserting age 19 ; (2) by striking age 65 in subclause (II) and inserting age 68 ; (3) by striking and at the end of subclause (II); (4) by striking the period at the end of subclause (III) and inserting , and