; (2) by striking the period at the end of clause (iii) and inserting ; and ; and (3) by adding at the end the following new clause: (iv) for each such calendar month after 2018, the amount which is creditable as such individual's additional wages under section 209(l) of the Social Security Act. . (d) Effective date The amendments made by this section shall apply with respect to individuals who initially become eligible (within the meaning of section 215(a)(3)(B) of the Social Security Act ( 42 U.S.C. 415(a)(3)(B) )) for old-age or disability insurance benefits under title II of the Social Security Act, or who die (before becoming eligible for such benefits), in any calendar year after 2018.