You need enough work credits, not a minimum number of hours per week

Social Security Disability Insurance (SSDI) does not require you to work a certain number of hours each week or month. Instead, the Social Security Administration (SSA) counts work credits — a measure based on your annual earnings over your lifetime. You earn work credits by paying Social Security taxes on your wages, whether you work full-time, part-time, or seasonally.

In 2024, you earn one work credit for every $1,730 in wages (this amount changes yearly). You can earn a maximum of four work credits per year, regardless of how many hours you work or how much you earn above that threshold. This means you could earn all four credits by working just a few weeks at high enough pay, or by spreading work throughout the year.

The SSA does not care whether you worked 10 hours a week or 60 hours a week — only that you earned enough to accumulate the credits you need. A person who worked one month at $7,000 and then stopped has the same credit value as someone who worked all year at minimum wage, as long as both crossed the credit threshold.

Key Takeaways

  • SSDI requires a specific number of work credits based on your age when you became disabled, not a weekly or monthly hour requirement.
  • You earn one work credit for every $1,730 in wages in 2024, up to four credits per year, and credits are based on earnings you paid Social Security taxes on.
  • Most people under 62 need 40 work credits total, with at least 20 earned in the 10 years before disability began.
  • Work credits remain on your record permanently — you do not lose them if you stop working, and they count toward SSDI even if you earned them decades ago.
  • The SSA will review your complete work history when you file, and you can request a statement showing exactly how many credits you have accumulated.

How many work credits you actually need

The number of credits required depends on your age when your disability began. For most people under 62, the SSA requires 40 work credits total, with at least 20 of those earned in the 10 years when ready before you became disabled. This is sometimes called the "20/40 rule."

If you became disabled before age 24, you need fewer credits — typically six credits earned in the three years before disability began. If you became disabled between ages 24 and 31, you need credits equal to the number of years from age 21 to the year you became disabled, with at least half earned in the years just before disability.

The SSA publishes a detailed chart showing credit requirements by age, and you can find it on their website or ask for it when you contact them. The point is that the requirement scales down for younger workers, because they have had less time to build a work history.

What counts as work for credit purposes

Work credits are based on earnings subject to Social Security tax, not on hours worked or type of job. If you were self-employed, worked for wages, or worked for a railroad, those earnings count. If you were paid under the table or earned money in ways that did not involve Social Security tax withholding, those earnings do not count toward credits, even if you worked many hours.

Military service before 1968 can count as work credits under certain conditions, and some government employees who did not pay Social Security tax may have alternative ways to earn credits. Volunteer work, unpaid family work, and work done without a Social Security number do not generate credits.

The SSA keeps a record of your earnings history based on reports from employers and self-employment tax returns. When you file for SSDI, they pull your complete record and count the credits you have accumulated. You can request a Social Security Statement (also called a benefit statement) online at ssa.gov to see your earnings record and credit count before you file.

Why the 10-year window matters

The requirement that at least 20 of your 40 credits come from the 10 years before disability began is meant to may support you were recently attached to the workforce. Someone who worked steadily from age 22 to 30 and then stopped working might have 40 total credits, but if they did not become disabled until age 50, they would not meet the "recent work" requirement.

This rule protects the program from paying benefits to people who have been out of the workforce for decades. However, it also means that if you stopped working due to health problems that eventually led to disability, you may not have enough recent credits even if you worked for many years earlier in life.

The SSA counts credits earned in the 10 calendar years before the year your disability began. If you became disabled in March 2024, the SSA looks back to 2014 and forward to 2024 to count your recent credits. Work done before 2014 counts toward your total of 40, but not toward the 20 recent-work requirement.

How work credits stay on your record

Once you earn a work credit, it remains on your Social Security record permanently. You do not lose credits if you stop working, take time off, or go on other benefits. Credits earned 30 years ago count just as much as credits earned last year, as long as they fall within the required time windows.

This means that if you worked and paid Social Security taxes for many years, then became unable to work due to illness or injury, your past work still counts. You do not have to keep working to "maintain" your credits or to keep SSDI once you are approved. The work history is locked in.

However, if you return to work after becoming disabled, your earnings during that time can generate additional credits, which may matter if your disability status changes or if you are explore for a different benefit later.

What happens if you do not have enough credits

If you do not have 40 total work credits, or if you do not have 20 credits from the past 10 years, you do not meet the SSDI work requirement. In that case, you may still be able to file for Supplemental Security Income (SSI), which is a separate needs-based program that does not require work credits. SSI has its own rules about income and resources, and the benefit amount is different from SSDI.

Some people who do not have enough SSDI credits now may become may be able to access later if they return to work and earn additional credits. For example, if you are 35 and have only 30 credits, you could work for a few more years, earn 10 more credits, and then file for SSDI if you become disabled. The SSA will count all credits you have earned by the time you file.

If you are unsure whether you have enough credits, you can request a benefit statement or contact the SSA directly. They will tell you exactly how many credits you have and how many you need based on your age and situation.

How the SSA verifies your work history

When you file for SSDI, the SSA already has your earnings record on file from Social Security tax reports submitted by employers and from self-employment tax returns you filed. You do not have to prove your work history with pay stubs or letters from employers, though you may need to provide those documents if there is a discrepancy.

The SSA's records are usually accurate, but errors can happen — a name change, a mismatched Social Security number, or an employer who reported earnings incorrectly. If you believe your earnings record is wrong, you can file a request to correct it, and the SSA will investigate. This process can take several months, so it is worth checking your record before you file for SSDI.

You can view your earnings record online through your my Social Security account, or you can call the SSA at 1-800-772-1213 to request a paper statement. The statement shows your earnings year by year and the number of work credits you have earned.

Frequently Asked Questions

Can I get SSDI if I worked part-time my whole life?

Yes, if you earned enough to accumulate the required work credits. Part-time work counts the same as full-time work — what matters is the total earnings subject to Social Security tax, not the number of hours. You could earn 40 credits through part-time jobs spread over many years.

Do I lose my work credits if I stop working?

No. Work credits stay on your record permanently. Once earned, they never expire or disappear. If you worked for 20 years and then stopped, those 20 years of credits still count if you later become disabled and file for SSDI.

What if I worked in another country?

Work performed outside the United States generally does not count toward SSDI credits, unless you were a U.S. citizen working for a U.S. employer or were covered under a Social Security agreement between the U.S. and that country. Contact the SSA to discuss your specific situation.

Can I check how many work credits I have before I file?

Yes. You can create a my Social Security account at ssa.gov and view your earnings record and work credit count online. You can also call 1-800-772-1213 or visit a local Social Security office to request a benefit statement by mail.

If I have 40 credits but they are all from 20 years ago, can I still get SSDI?

Not unless you have at least 20 credits from the past 10 years. The SSA requires recent work attachment. However, if you worked 20 years ago and have continued to work since then, those recent earnings would count toward the 20-credit requirement.