Proposed Provision: F10. Expand the tax on net investment income (NII) as defined in the Affordable Care Act (ACA) to cover earnings from active S corporation holders and active limited partners. Apply a 12.4-percent tax on this expanded definition of NII, payable to the OASI and DI Trust Funds with specified thresholds, effective for 2026 and later. The unindexed thresholds for this provision are $400,000 for a single filer and $500,000 for a married couple filing jointly. The NII tax would apply to the lesser of NII and the excess of modified adjusted income (MAGI) above the unindexed thresholds.

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

Year Current Law Provision
2025169169
2026149149
2027131140
2028113131
202995122
203078113
203160105
20324396
20332687
2034978
2035-970
2036-2761
2037-4553
2038-6343
2039-8334
2040-10224
2041-12215
2042-1435
2043-164-5
2044-185-16
2045-206-26
2046-228-36
2047-250-47
2048-272-58
2049-295-68
2050-317-79
2051-340-90
2052-363-102
2053-386-113
2054-409-125
2055-433-137
2056-457-149
2057-481-161
2058-505-174
2059-530-187
2060-556-201
2061-582-215
2062-609-229
2063-636-244
2064-664-260
2065-692-275
2066-721-291
2067-750-307
2068-780-324
2069-810-340
2070-840-358
2071-871-375
2072-903-393
2073-935-411
2074-967-430
2075-1000-449
2076-1035-469
2077-1070-489
2078-1106-510
2079-1142-531
2080-1180-553
2081-1219-575
2082-1258-597
2083-1298-619
2084-1338-642
2085-1380-666
2086-1423-690
2087-1466-714
2088-1510-738
2089-1554-762
2090-1599-786
2091-1643-810
2092-1687-833
2093-1731-857
2094-1774-879
2095-1816-902
2096-1858-924
2097-1900-946
2098-1941-967
2099-1982-989
2100-2022-1010
back