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Glossary - Social Security Disability

Glossary

Word Definition
Date of Last Insured Date of Last Insured: Some people have what is known as a “Date of Last Insured” with regard to SSD. This means they may have not filed a timely application for benefits, didn’t pay into the system long enough, etc. In this case, the SSA would send you a letter stating, “We did not find that you became disabled on or before X date, the date in which you were last insured for purposes of receiving SSDI benefits.” This means that your conditions have to have been disabling on or before X date in order to recover.