Section 36B of the Internal Revenue Code of 1986, as in effect for months beginning after December 31, 2019, is amended by adding at the end the following new subsection: (h) Social security number requirement (1) In general No amount shall be taken into account under subparagraph (A) or (B) of subsection (b)(1) with respect to any individual for any taxable year unless the taxpayer includes such individual’s social security number on the return of tax for the taxable year. (2) Application to advance payment No advance payment of the credit allowed under this section with respect to any amount described in paragraph (1) with respect to any individual shall be made under section 1412 of the Patient Protection and Affordable Care Act unless the Secretary, in consultation with the Commissioner of Social Security and the Secretary of Homeland Security, has verified the social security number of such individual. (3) Social security number For purposes of this subsection, the term social security number means a social security number issued to an individual by the Social Security Administration (other than a social security number issued pursuant to clause (II) (or that portion of clause (III) that relates to clause (II)) of section 205(c)(2)(B)(i) of the Social Security Act) on or before the due date for filing the return for the taxable year (for purposes of paragraph (2), before the close of the month to which the advance payment relates). . (c) Omission of correct social security number treated as mathematical or clerical error Section 6213(g)(2) is amended by striking and at the end of subparagraph (P), by striking the period at the end of subparagraph (Q) and inserting a comma, and by inserting after subparagraph (Q) the following new subparagraph: (R) an omission of a correct social security number required under subsection (h)(1) of section 36B (subsection (g)(1) of section 36B in the case of months beginning before January 1, 2020) to be included on a return. . (d) Effective dates (1) Application to current