; and the applicant for any such revocation may not thereafter again file an application for an exemption under such section 1402(e)(1). If the application is filed after the due date of the applicant’s Federal income tax return for a taxable year and is effective with respect to that taxable year, it shall include or be accompanied by payment in full of an amount equal to the total of the taxes that would have been imposed by section 1401 of the Internal Revenue Code of 1986 with respect to all of the applicant’s income derived in that taxable year which would have constituted net earnings from self-employment for purposes of chapter 2 of such Code (notwithstanding paragraphs (4) and (5) of section 1402(c)) except for the exemption under section 1402(e)(1) of such Code. (b) Effective date Subsection (a) shall apply with respect to service performed (to the extent specified in such subsection) in taxable years beginning after December 31, 2020, and with respect to monthly insurance benefits payable under title II of the Social Security Act on the basis of the wages and self-employment income of any individual for months in or after the calendar year in which such individual’s application for revocation (as described in such subsection) is effective (and lump-sum death payments payable under such title on the basis of such wages and self-employment income in the case of deaths occurring in or after such calendar year).