Proposed Provision: Beginning in 2017, apply 4 percent payroll tax rate on earnings above the wage-indexed equivalent of $400,000 in 2015, with the threshold wage-indexed after 2017. Provide benefit credit for additional earnings taxed, using a secondary PIA formula. This secondary PIA formula involves: (1) an "AIME+" derived from annual earnings taxed only between 2015 wage-indexed equivalents of $400,000 and $500,000 (with thresholds wage-indexed after 2017); and (2) a formula factor of 2 percent on this newly computed "AIME+".

OASDI Trust Fund Ratio
(assets as a percentage of annual expenditures)

Year Present Law Provision
2015308308
2016298298
2017280280
2018264266
2019248253
2020233240
2021219227
2022204214
2023189201
2024173187
2025157174
2026142160
2027126146
2028110132
202994118
203077103
20316088
20324272
20332355
2034438
2035-1620
2036-362
2037-57-16
2038-78-35
2039-100-54
2040-122-74
2041-144-93
2042-166-113
2043-189-133
2044-211-153
2045-234-173
2046-257-193
2047-280-213
2048-303-234
2049-327-255
2050-351-276
2051-375-297
2052-398-318
2053-423-339
2054-447-361
2055-472-382
2056-496-405
2057-522-427
2058-548-450
2059-574-474
2060-601-498
2061-629-522
2062-657-547
2063-685-573
2064-714-599
2065-744-625
2066-774-652
2067-804-679
2068-835-707
2069-867-736
2070-899-765
2071-932-794
2072-965-824
2073-1000-856
2074-1035-888
2075-1072-921
2076-1110-955
2077-1148-989
2078-1188-1025
2079-1228-1061
2080-1268-1097
2081-1309-1134
2082-1350-1171
2083-1391-1208
2084-1432-1244
2085-1472-1281
2086-1514-1318
2087-1555-1356
2088-1597-1394
2089-1640-1432
2090-1683-1472
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