Work Credits (SSDI)

One of the eligibility requirements for SSDI is to have worked and paid FICA taxes for specified periods of time. If you work and earn at least $1,360 for one quarter (three months), and pay FICA taxes, you earn one SSDI "work credit." You can earn up to four credits within a 12-month period.

The number of work credits needed to qualify for SSDI depends upon how old you were when Social Security determined that you are disabled.

If you were determined disabled before age 24, you need six credits within the past three years to be eligible for SSDI.

If you were determined disabled between the ages of 24 and 31, you need 12 credits within the past six years to be eligible for SSDI.

If you were determined disabled after you turned 31, you need the number of work credits shown in the table below. And unless you are blind, you need to have earned at least 20 of those credits in the 10 years prior to becoming disabled.

Work Credits Required for SSDI Eligibility for those Born After 1929
Became Disabled At Age:
Number of Credits Needed
31 through 42
20
44
22
46
24
48
26
50
28
52
30
54
32
56
34
58
36
60
38
62 or older
40