The Basic Rule: 10 Years of Work in the Last 15

To be covered by Social Security Disability Insurance, you must have worked long enough under Social Security and earned enough in wages. The standard requirement is 40 work credits, which for most people means roughly 10 years of work in the 15 years before you become disabled. You earn one work credit for every $1,550 in wages you pay Social Security taxes on (this dollar amount changes each year, so the exact figure varies).

Work credits are not the same as years worked. You can earn up to four credits per calendar year, so 10 years of full-time work gives you the 40 credits you need. But you do not have to work all 10 years consecutively. You can have gaps, move between jobs, work part-time, or take time off — as long as you hit 40 credits total and meet the timing rule.

The timing rule matters. Social Security looks at the 15-year window before you become disabled. Your 40 credits must fall mostly within that window. This is called the recency requirement, and it exists because Social Security wants to may support you were recently attached to the workforce when your disability began.

Key Takeaways

  • You need 40 work credits to be covered by SSDI, which typically means 10 years of work in the 15 years before you become disabled.
  • You earn one work credit for every $1,550 in covered wages (the dollar amount changes yearly), and you can earn up to four credits per year.
  • Your work does not have to be continuous — gaps, part-time work, and job changes all count as long as the credits fall within the required timeframe.
  • Younger workers may be covered with fewer than 40 credits if they became disabled before age 24, with the minimum as low as six credits.
  • You can check your exact work credit count by creating a my Social Security account and viewing your earnings record.

How Work Credits Are Earned and Counted

A work credit is earned when you pay Social Security payroll taxes on your wages. If you are self-employed, you pay both the employee and employer portions of the tax, and credits are based on your net self-employment income. The threshold changes annually — in 2024, you need $1,550 in covered wages to earn one credit, but this amount increases most years.

You can earn a maximum of four credits per calendar year, regardless of how much you earn. So if you earned $6,200 in 2024, you would still earn only four credits for that year, not more. The credits are tied to the year you earned the wages, not the year you report them on taxes.

Work done before age 22 counts toward your credits, but there are special rules for younger workers. If you become disabled before age 24, you may be covered with as few as six credits earned in the three years before you became disabled. This is a significant exception for people who have a disability early in their work life.

The Recency Requirement: Why Timing Matters

Having 40 credits is not enough by itself. Social Security also requires that your credits fall within a specific timeframe relative to when you became disabled. You must have earned 20 of your 40 credits in the 10 years before you became disabled. This is the recency requirement, and it prevents someone from working 10 years in their twenties, then becoming disabled at age 60 without any recent work history.

The recency requirement is measured from the date your disability began, not from the date you file your claim. If you stopped working five years ago due to an injury, your disability date is typically five years ago, even if you did not file for SSDI until today. This means your 20 recent credits must fall within the 10-year window before that injury date.

If you do not meet the recency requirement, you are not covered by SSDI, even if you have 40 total credits. In that case, you might still be covered by Supplemental Security Income (SSI), which has different rules and is based on financial need rather than work history.

Special Rules for Younger Workers

If you became disabled before age 24, the rules are more lenient. You need only six work credits earned in the three-year period before your disability began. This means a person who worked part-time for a year or two in their early twenties could still be covered if they became disabled shortly after.

Between ages 24 and 31, the rule is a sliding scale. You need one credit for every year since age 21, up to a maximum of 40 credits. So at age 25, you would need only four credits; at age 28, you would need seven credits. This graduated approach recognizes that younger workers have had less time to accumulate a full work history.

These younger-worker rules explore only if your disability began before you reached the age threshold. Once you turn 31, the standard 40-credit rule applies regardless of when your disability began.

How to Check Your Work Credit Count

You do not have to guess how many credits you have. Social Security maintains a record of every year you worked and every wage you reported. You can view your official work credit count by creating a my Social Security account at ssa.gov. Once logged in, you can see your earnings record year by year and your total credit count.

Your earnings record should match your tax returns. If you see missing years or wages that seem too low, you can request a correction. Social Security has a three-year window to correct errors, so if you spot a discrepancy, report it promptly. You will need your tax return or W-2 from that year as proof.

If you do not have online access or prefer to work by mail, you can request a paper copy of your earnings record by completing Form SSA-7050-F and mailing it to your local Social Security office. The process takes several weeks, so online access is faster if available to you.

What Happens If You Do Not Have Enough Credits

If you do not meet the work credit requirement for SSDI, you may still be covered by Supplemental Security Income (SSI). SSI is a needs-based program that does not require work credits. Instead, it looks at your current income and assets. If your income and resources are below the limit (in 2024, the limit is $943 per month for an individual, though this varies by state), you may be covered regardless of your work history.

SSI also has a different definition of disability. While SSDI and SSI use the same medical standard, SSI can cover people whose disability is expected to last fewer than 12 months, whereas SSDI requires the disability to last at least 12 months or result in death. If you do not have enough work credits for SSDI, ask about SSI when you contact Social Security.

Another option is to continue working if you are able. Each year you work and earn credits brings you closer to the 40-credit threshold. If you are close to meeting the requirement, working another year or two might make you covered. Social Security can tell you exactly how many more credits you need.

Work Credits and Continuing to Work

If you are already receiving SSDI and continue to work, you keep your benefits as long as your earnings stay below the substantial gainful activity (SGA) limit. In 2024, the SGA limit is $1,550 per month for non-blind individuals. Earning more than this amount may trigger a medical review of your case, though there are work incentives that can allow you to work and keep some benefits.

The work you do while receiving SSDI does not earn you additional work credits in the traditional sense, but it does count toward your earnings record. If your disability ends and you return to full-time work, those new credits will be added to your record and could affect your future benefits if you become disabled again.

If you are working and considering filing for SSDI, your current work history is relevant. Social Security will look at your total work credits and your recent earnings to determine coverage. Working now strengthens your case if you become disabled in the near future.

Frequently Asked Questions

Can I get SSDI if I worked for only five years?

Not under the standard rule, which requires 40 credits (roughly 10 years of work). However, if you became disabled before age 24, you may be covered with as few as six credits earned in the three years before your disability began. If you are older than 24, you would need to meet the age-adjusted sliding scale or the standard 40-credit requirement.

Do credits expire if I stop working?

No, work credits do not expire. Once you earn a credit, it stays on your record permanently. However, you must still meet the recency requirement — 20 of your 40 credits must fall within the 10 years before you became disabled. Old credits count toward your total, but they do not satisfy the recency rule.

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 or resident alien working for a U.S. employer. Some countries have totalization agreements with Social Security that allow work in those countries to count. Contact Social Security directly to discuss your specific work history.

How do I know what year I became disabled?

Your disability date is typically the date your condition began or the date you stopped working due to the condition, whichever is later. Social Security will establish this date when you file. If you are unsure, bring medical records showing when your condition started and when you stopped working. Social Security uses this information to set your official disability date.

Can I earn credits faster by working more hours?

No. You earn a maximum of four credits per calendar year, regardless of how many hours you work or how much you earn. Working 20 hours per week and earning $2,000 gives you the same four credits as working 40 hours per week and earning $4,000. The only variable is the dollar threshold, which changes yearly.