The Basic Work Requirement for SSDI

To receive Social Security Disability Insurance (SSDI), you must have worked long enough and recently enough to have earned enough work credits. The Social Security Administration does not count years of work directly — it counts credits, and the number of credits you need depends on your age when you become disabled.

Most people need 40 work credits total, with at least 20 of those credits earned in the 10 years before you became disabled. If you are under 24, the rules are different and require fewer credits. If you are between 24 and 31, you need credits for half the time between age 21 and the age you became disabled.

You earn one work credit for every $1,550 of wages you earn in a calendar year (this dollar amount changes each year). You can earn a maximum of four credits per year, regardless of how much you earn. This means the fastest way to build credits is to work steadily — you do not need to work every single day or earn a high income.

Key Takeaways

  • Most people need 40 total work credits, with 20 earned in the 10 years before they became disabled.
  • You earn one credit for roughly $1,550 of annual wages, and you can earn a maximum of four credits per year.
  • If you became disabled before age 24, you may need as few as 6 credits total.
  • The Social Security Administration tracks your work history automatically if you have a Social Security number and your employer reports your wages.
  • You can check your work credits anytime by creating a my Social Security account and viewing your earnings record.

How Work Credits Are Earned and Tracked

A work credit is tied to your wages, not to time spent working. In 2024, you earn one credit for every $1,550 you earn in wages (the threshold increases slightly most years). Because you can earn only four credits per year, you reach the four-credit maximum once you have earned about $6,200 in a single year.

Your employer reports your wages to Social Security through payroll taxes. If you are self-employed, you report your net earnings on your tax return. Social Security uses these reports to build your earnings record automatically — you do not have to do anything to register your work or claim credits.

Credits stay on your record permanently. If you worked for five years, stopped working for ten years, and then worked again, all the credits from your first five years still count. This matters because you only need 20 of your 40 credits to be recent (within the past 10 years); the other 20 can come from any point in your work history.

Different Credit Requirements by Age at Disability

The number of credits you need depends on how old you were when you became disabled. The Social Security Administration uses age brackets because younger workers have had less time to build a work history.

If you became disabled before age 24, you need only 6 credits earned in the 3 years before you became disabled. If you were between 24 and 31 when you became disabled, you need credits for half the time between age 21 and your disability date — for example, if you became disabled at age 28, you need credits for 3.5 years of the 7-year span from age 21 to 28. If you were 31 or older when you became disabled, you need the standard 40 credits with 20 earned in the past 10 years.

These rules exist because Social Security recognizes that a 22-year-old has not had time to accumulate 40 credits, but a 35-year-old should have. The younger you are, the fewer credits the program requires.

What Counts as Recent Work for the 10-Year Window

The 10-year window is the period when ready before you became disabled. Social Security counts only work credits earned during this window toward the 20 recent credits you need. If you earned credits before this 10-year period, they count toward your total of 40, but not toward the 20 recent credits.

The 10-year window is measured from the date you became disabled, not from today. If you became disabled in 2020, your 10-year window runs from 2010 to 2020. Credits earned in 2009 or earlier do not count as recent, even if you earned them.

This rule prevents someone from working steadily for 20 years, then stopping work for 15 years and still being able to claim SSDI based on old credits. Social Security wants evidence that you were recently attached to the workforce when your disability began.

Checking Your Work Credits and Earnings Record

You can view your work credits and earnings record online through a my Social Security account. Go to ssa.gov, select "Create an account," and follow the steps to verify your identity. Once you are logged in, you can see how many credits you have earned each year and your total credit count.

Your earnings record shows the wages Social Security has on file for you. Check it for accuracy — if your employer reported your wages incorrectly or if wages are missing, you can request a correction. You have a limited time to correct errors, so if you spot a problem, contact Social Security right away.

If you do not have internet access or prefer to speak with someone, you can call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) and ask for a copy of your earnings record. They will mail it to you, usually within two weeks.

What Happens If You Do Not Have Enough Credits

If you do not have enough work credits when you become disabled, you cannot receive SSDI. However, you may be able to receive Supplemental Security Income (SSI) instead, which is a needs-based program that does not require work credits. SSI has income and asset limits, and the monthly payment is usually lower than SSDI, but it is available to disabled people who have not worked enough.

If you are close to having enough credits, you might also consider whether waiting to file could help. If you are still working or expect to work again soon, additional credits could push you over the threshold. However, you cannot receive SSDI while you are working above the substantial gainful activity level, so this strategy only works if your disability allows you to continue earning credits before you file.

Another option is to check whether you might be able to receive benefits as a family member on someone else's record — for example, as a spouse or adult child of a retired or disabled worker. Family benefits do not require your own work credits, though they do require a relationship to the primary worker and other conditions.

How Work Credits Affect Your SSDI Payment Amount

The number of credits you have does not change your SSDI payment amount. Once you have enough credits to be found disabled, your monthly benefit is based on your average lifetime earnings, not on how many credits you earned.

Someone who earned 40 credits over 10 years of high-wage work will receive a different benefit than someone who earned 40 credits over 30 years of low-wage work, because their average earnings are different. But the number 40 itself does not appear in the payment calculation.

This means that if you are trying to decide whether to work longer before filing, the extra credits will not increase your payment — only higher earnings during those extra work years would. This is useful to know when you are weighing the costs and benefits of continuing to work while disabled.

Frequently Asked Questions

Can I get SSDI if I worked part-time or had gaps in my work history?

Yes. Part-time work counts the same as full-time work — you earn credits based on your total wages, not on hours worked. Gaps in your work history do not erase credits you already earned. You only need 20 of your 40 credits to be recent; the other 20 can come from any time in your past.

What if I worked outside the United States?

Work outside the U.S. generally does not count toward SSDI credits unless you were paying Social Security taxes on those wages. Some countries have agreements with the U.S. that allow work to count, but you will need to contact Social Security directly to find out whether your specific work qualifies.

Do I need to have worked recently to get SSDI?

You need 20 of your 40 credits to be earned in the 10 years before you became disabled. This means your most recent work does not have to be within the past year or two — it just has to be within the past 10 years. However, if you have been working and then stopped, the date you stopped working is when Social Security measures the 10-year window from.

Can I earn more credits after I start receiving SSDI?

You cannot earn credits while receiving SSDI if you are working above the substantial gainful activity level (roughly $1,550 per month in 2024). If you work below that level, you can continue to earn credits, but your SSDI payment will not increase based on those new credits — your benefit is locked in based on your earnings record at the time you were found disabled.

How do I know what year I became disabled?

Your disability date is the date your condition began, not the date you filed for SSDI or were approved. Social Security determines this date during the review of your case. If you disagree with the date Social Security assigns, you can appeal it, because the disability date affects which credits count as recent.