The Basic Rule: 40 Credits, With 20 Earned in the Last 10 Years

To receive Social Security Disability Insurance (SSDI), you must have earned at least 40 work credits during your lifetime, and at least 20 of those credits must have been earned in the 10 calendar years before you became disabled. The Social Security Administration (SSA) calls this the "recent work" requirement, and it exists because SSDI is meant to replace income you would have earned if you were able to work.

You earn one work credit for every $1,550 of wages you report to Social Security in a calendar year (as of 2024; this amount changes annually). You can earn a maximum of four credits per year, regardless of how much you earn. This means you cannot "bank" extra credits by working more in a single year—the system caps your annual accumulation at four.

The 20-credits-in-10-years rule is less strict than it sounds. You do not need to have worked every single year. You could have worked five years out of the past ten and earned four credits each year, which would give you exactly 20. Or you could have worked eight years and earned credits in only some of them. What matters is the total count and the calendar window.

Key Takeaways

  • You need 40 lifetime work credits and 20 credits earned in the 10 calendar years before you became disabled.
  • You earn one credit for approximately $1,550 of reported wages per year, with a maximum of four credits per year.
  • The 10-year window is measured in calendar years, not rolling 120 months, so the exact timing of when you stopped working matters.
  • If you do not meet the recent work requirement, you may still be able to receive Supplemental Security Income (SSI) if your income and resources are low enough.
  • You can check your work credit record by creating a my Social Security account or requesting a Statement of Earnings from SSA.

How the 10-Year Window Works in Practice

The "10 calendar years before you became disabled" is a specific measurement. If you became disabled on June 15, 2024, SSA counts back to January 1, 2014. Any credits you earned from 2014 through 2023 count toward the 20-credit requirement. Credits earned before 2014 do not count toward the recent work requirement, even if you have them.

This timing matters most when you stop working. If you worked steadily until you became disabled, you will likely have the 20 recent credits. But if you stopped working several years before you became disabled—for example, you left a job in 2018 and became disabled in 2024—you may not have earned enough credits in the required window. In that case, you would not meet the recent work requirement for SSDI, even if you had 40 lifetime credits.

The window does not reset or extend based on when you file your claim. SSA measures it from the date you became disabled, which is usually the date your condition began, not the date you stopped working or the date you applied.

What Counts as a Work Credit

A work credit is based on wages reported to Social Security, not on hours worked or job titles. If you were self-employed, your net earnings from self-employment count. If you worked for an employer, your W-2 wages count. Wages earned in any state count, and wages earned outside the United States may count if you were a U.S. citizen or resident alien.

The annual earnings threshold that gives you one credit changes each year. In 2024, you need $1,550 in reported wages to earn one credit. In 2023, it was $1,500. In 2022, it was $1,470. SSA publishes the current year's amount on its website each October or November.

Some types of income do not count toward work credits. Unemployment benefits, workers' compensation, disability payments, investment income, and cash information do not count. Only wages or self-employment income reported to the Internal Revenue Service (IRS) and Social Security count.

Younger Workers and the Special Rule

If you became disabled before age 24, you do not need 40 lifetime credits. Instead, you need only 6 credits earned in the 3 calendar years before you became disabled. This rule recognizes that younger workers have had less time to build a credit record.

If you became disabled between ages 24 and 31, you need credits equal to one for each year from age 21 to the year you became disabled, with a minimum of 20 credits. For example, if you became disabled at age 28, you would need credits for the years from age 21 to 28—that is, seven years of credits. If you earned four credits per year for those seven years, you would have 28 credits, which exceeds the minimum of 20.

These younger-worker rules exist because SSDI is designed to protect workers who have not yet had a full career to build credits. The SSA recognizes that a 22-year-old cannot reasonably be expected to have 40 credits.

How to Check Your Work Credit Record

You can view your work credit record and earnings history through my Social Security, the SSA's online portal. Create an account at ssa.gov, sign in, and select "Earnings Record" to see the wages SSA has on file for each year. This record shows how many credits you have earned and in which years.

If you do not use online accounts, you can request a Statement of Earnings by mail. Call SSA at 1-800-772-1213 (TTY 1-800-325-0778) and ask them to mail you a statement. You can also visit your local Social Security office in person.

Check your record before you file a claim. If you see missing wages—for example, you worked in 2020 but SSA shows no earnings for that year—contact SSA to correct it. Corrections can take time, so it is better to fix errors early. Bring your tax returns or W-2s as proof if SSA questions your earnings.

What Happens If You Do Not Have Enough Credits

If you do not meet the work credit requirement for SSDI, you cannot receive SSDI benefits. However, you may be able to receive Supplemental Security Income (SSI) instead, if your income and resources are low enough. SSI is a needs-based program that does not require work credits; it is based on financial need and disability status.

The income and resource limits for SSI are strict. As of 2024, your countable income must be below the federal benefit rate (which varies by state), and your countable resources must not exceed $2,000 (or $3,000 if you are married). Some income and resources do not count toward these limits—for example, the first $65 of monthly earnings and the first $20 of other income are excluded.

If you are close to having enough credits—for example, you have 35 credits and need 40—you might be able to work part-time while your claim is being reviewed. Each quarter you work and earn the required amount, you gain one more credit. However, this strategy only works if you become disabled after you have earned the additional credits.

Credits and Continuing Disability Reviews

Once you are approved for SSDI, your work credits do not affect your ongoing benefits. SSA does not "use up" your credits as you receive payments. Your credits are a one-time requirement to establish that you are insured for disability benefits.

However, if you return to work and your earnings are high enough, SSA may determine that you are no longer disabled and stop your benefits. This is separate from the work credit rule. The work incentive programs—including the Trial Work Period and Extended may be able to access Period—allow you to test your ability to work without when ready losing benefits, but these are based on your current earnings and work activity, not on your work credit balance.

Frequently Asked Questions

Can I earn work credits after I become disabled?

Yes, if you work and earn wages after you become disabled, those wages count toward work credits. However, if your earnings are substantial, SSA may determine that you are no longer disabled and deny or stop your SSDI benefits. The Trial Work Period allows you to test work without losing benefits for nine months, but high earnings can still trigger a medical review.

What if I worked in another country?

Wages earned outside the United States may count if you were a U.S. citizen or resident alien at the time. You will need to provide proof of those earnings, such as tax records or employer statements. Contact SSA to discuss your specific situation, as the rules vary by country and visa status.

Do military service credits count?

Yes. If you served on active duty in the U.S. military before 1968, you receive automatic wage credits. From 1968 onward, military wages are reported like civilian wages. Contact SSA if you have questions about credits for military service.

If I have 40 credits but only 15 were earned in the last 10 years, can I still get SSDI?

No. You must meet both requirements: 40 lifetime credits and 20 credits in the 10 calendar years before you became disabled. If you do not have 20 recent credits, you do not meet the insured status requirement for SSDI, even if you have 40 lifetime credits.

How long does it take to learn about I have enough credits?

SSA can tell you when ready if you have enough credits once they have your earnings record. You can check my Social Security online in minutes, or call SSA and they can review your record over the phone. The credit check is not the part of the process that takes time—the medical review is.