Social Security Disability Insurance (SSDI or SSD) is a Federal benefit program administered by the Social Security Administration (SSA), which is supported by the Social Security tax and provides aid to people who are unable to maintain gainful employment due to a permanent medical condition. SSD pays benefits to disabled individuals and certain members of their family. Anyone who has paid Social Security taxes long enough to achieve sufficient work credits and qualifies as disabled according to the definition provided by the SSA can qualify for SSD benefits. The definition of disability per the SSA is: that you are unable to perform the work you did before your disability, the SSA finds that you cannot adjust to other work due to your disability, and your disability is expected to last at least 1 year or result in death. See if you qualify to receive SSD benefits!