SSA stands for Social Security Administration. The agency that oversees whole Social Security system. SSDI is just Social Security DIsability, a free long term disability insurance! I refused to buy long term disability insurance BECAUSE SS offers that too. So, its pointless have two insurances, and can't claim both anyway.
SSDI, SS funds came directly from Social security taxes. While SSI, in other word Social suppliment Income, and that funds comes from general federal taxes. Now you see why you need to work over specific amount of time in order to qualify for SSDI or SS benefits. On other hand, for SSI, no need to have work history to qualify. Just severe disability would qualify.
Originally Posted by Safari
That's correct. What makes it different about SSA and SSDI?