About Social Security Disability Insurance (SSDI)
Social Security Disability Insurance, also known as SSDI or SSD, provides income to individuals no longer able to work because of a physically or psychologically restrictive disability. SSDI is funded by payroll taxes and does not depend on the recipient’s income level, as it is based solely on work history and the degree of disability.
To qualify for SSDI, it is usually required that the applicant has worked five of the past ten years at a job (or multiple jobs) where Social Security taxes were withheld. If an individual receives SSDI benefits upon reaching full retirement age, the SSDI payments automatically convert to retirement benefits.