1. Maximum contribution limit to health savings account increased to amount of deductible and out-of-pocket limitation (a) Self-Only coverage Section 223(b)(2)(A) of the Internal Revenue Code of 1986 is amended by striking $2,250 and inserting the amount in effect under subsection (c)(2)(A)(ii)(I) . (b) Family coverage Section 223(b)(2)(B) of such Code is amended by striking $4,500 and inserting the amount in effect under subsection (c)(2)(A)(ii)(II) . (c) Conforming amendments Section 223(g)(1) of such Code is amended— (1) by striking subsections (b)(2) and both places it appears and inserting subsection , and (2) in subparagraph (B), by striking determined by and all that follows through calendar year 2003 . and inserting determined by substituting calendar year 2003 for calendar year 2016 in subparagraph (A)(ii) thereof. . (d) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2018. 2. Allow both spouses to make catch-up contributions to the same health savings account (a) In general Section 223(b)(5) of the Internal Revenue Code of 1986 is amended to read as follows: (5) Special rule for married individuals with family coverage (A) In general In the case of individuals who are married to each other, if both spouses are eligible individuals and either spouse has family coverage under a high deductible health plan as of the first day of any month— (i) the limitation under paragraph (1) shall be applied by not taking into account any other high deductible health plan coverage of either spouse (and if such spouses both have family coverage under separate high deductible health plans, only one such coverage shall be taken into account), (ii) such limitation (after application of clause (i)) shall be reduced by the aggregate amount paid to Archer MSAs of such spouses for the taxable year, and (iii) such limitation (after application of clauses (i) and (ii)) shall be divided equally between such spouses unless they agree on a different division. (B)