- _Government
The “OASDI (Old-Age, Survivors, and Disability Insurance) tax” is the official name for the U.S. Social Security tax that funds benefits for “retirees, survivors of deceased workers, and individuals with disabilities.” OASDI revenues go into two separate “trust funds” (the OASI Trust Fund and the DI Trust Fund), rather than the general Treasury. This earmarking means Congress cannot spend Social Security payroll taxes on unrelated programs.