1. Short title This Act may be cited as the Working Families Tax Relief Act of 2017 . 2. Strengthening the earned income tax credit (a) Increased credit for individuals with no qualifying children (1) In general The table in subparagraph (A) of section 32(b)(2) of the Internal Revenue Code of 1986 is amended— (A) by striking $4,220 in the second column and inserting $9,230 ; and (B) by striking $5,280 in the last column and inserting $10,900 . (2) Inflation adjustments Subparagraph (B) of section 32(j)(1) of the Internal Revenue Code of 1986 is amended— (A) in clause (i)— (i) by inserting (except as provided in clause (iii)) after (b)(2)(A) ; and (ii) by striking and at the end; (B) in clause (ii), by striking the period at the end and inserting , and ; and (C) by adding at the end the following new clause: (iii) in the case of the $9,230 and $10,900 amounts in the table in subsection (b)(2)(A), by substituting calendar year 2016 for calendar year 1992 in subparagraph (B) of such section 1. . (b) Credit increase and reduction in phaseout for individuals with no children The table contained in section 32(b)(1) of the Internal Revenue Code of 1986 is amended— (1) by striking 7.65 in the second column of the fourth row and inserting 15.3