SSDI requires work credits, not ongoing work
Social Security Disability Insurance (SSDI) does not require you to be working when you file. Instead, the Social Security Administration (SSA) looks backward at your work history to count how many work credits you have earned. A work credit is a record of wages or self-employment income reported to Social Security in a given year. You need a certain number of these credits to be found may be able to access for SSDI — the exact number depends on your age when your disability began.
Once you are receiving SSDI, you can work and still collect benefits, but only within specific limits. Earnings above those limits can reduce or stop your monthly payment. This section explains how credits work, how many you need, and what happens to your benefits if you return to work.
Key Takeaways
- You earn one work credit for every $1,550 in wages or self-employment income you report in a year (the dollar amount changes annually), up to a maximum of four credits per year.
- Most people filing for SSDI need 40 credits total, with at least 20 of those earned in the 10 years before disability began.
- If you became disabled before age 24, you may need fewer credits — as few as 6 credits earned in the three years before disability.
- Work credits do not expire once earned; SSA counts all credits from your entire work history, even if you stopped working years ago.
- If you work while receiving SSDI, SSA counts your earnings each month and may reduce your payment if you exceed the monthly earnings limit.
How work credits are earned and counted
You earn work credits by paying Social Security taxes on wages or self-employment income. Each year, SSA sets a dollar threshold; when you earn that amount in a calendar year, you receive one credit. In 2024, you earn one credit for every $1,550 in annual earnings. You can earn a maximum of four credits per year, which means once you have earned $6,200 in a year, you have maxed out your credits for that year — earning more does not give you additional credits.
The dollar amount that triggers a credit changes each year based on national wage trends. SSA publishes the current year's threshold on its website. Self-employed people report their net earnings (income minus business expenses) on Schedule C of their tax return, and SSA counts those earnings the same way it counts wages.
Work credits accumulate over your lifetime. If you earned 30 credits by age 35 and then stopped working, those 30 credits remain on your record. You do not lose credits if you have a gap in employment, and you do not need to earn credits continuously. SSA looks at your entire work history when you file for SSDI.
How many credits you need based on your age
The number of credits required for SSDI depends on how old you were when your disability began. SSA uses a sliding scale because younger workers have had less time to build a work history.
| Age When Disability Began | Total Credits Needed | Credits Needed in Last 10 Years |
|---|---|---|
| 31 or older | 40 credits | 20 credits |
| 24 to 30 | Credits equal to years worked since age 21 | Half of the total credits needed |
| Under 24 | 6 credits | 6 credits earned in the 3 years before disability |
For someone age 31 or older, the most common requirement is 40 credits with at least 20 earned in the 10 years when ready before disability began. This means you could have worked heavily in your 20s, stopped working for several years, and still meet the requirement if you had 20 credits in the decade before your disability.
For someone between 24 and 30, the requirement is more flexible. If you are 28 when disability begins, you need roughly 28 credits total (one for each year since age 21), with about half of those in the 10 years before disability. For someone under 24, the bar is much lower — just 6 credits, all earned within the three years before disability began.
What happens if you do not have enough credits
If you do not have the required number of work credits when you file for SSDI, SSA will deny your claim based on insufficient work history. This is separate from whether your medical condition meets SSA's definition of disability. You could have a severe, permanent condition but still be denied if you have not worked enough.
If you are denied for insufficient credits, you have two options. First, you can continue working and reapply later once you have earned enough credits. Each year you work and report earnings, you add up to four more credits to your record. Second, you can file for Supplemental Security Income (SSI) instead, which is a needs-based program that does not require work credits. SSI has different rules: it looks at your current income and assets rather than your work history, and the monthly payment amount is lower than SSDI.
If you are close to having enough credits, it may be worth waiting a few months or a year to reapply for SSDI rather than switching to SSI, because SSDI typically pays more. SSA can tell you exactly how many credits you need and how many you currently have if you request a Social Security Statement or call 1-800-772-1213.
Working while receiving SSDI
SSDI does not stop you from working. However, SSA monitors your monthly earnings, and if you earn more than a set amount, your benefits are reduced or stopped. This limit is called Substantial Gainful Activity (SGA). In 2024, SGA is $1,550 per month for non-blind individuals and $2,590 for blind individuals. These amounts change each year.
If you earn less than the SGA limit in a month, you receive your full SSDI payment that month. If you earn more, SSA reduces your payment by $1 for every $2 you earn above the limit. For example, if the SGA limit is $1,550 and you earn $1,750 in a month, you are $200 over the limit. SSA would reduce your payment by $100 that month.
SSA also offers a Trial Work Period (TWP), which is a nine-month window during which you can earn any amount without losing benefits. The nine months do not have to be consecutive; SSA counts only months in which you earn $1,050 or more (in 2024). After your TWP ends, the SGA limit applies. This program is designed to let you test your ability to work without when ready losing your safety net.
You must report your earnings to SSA each month. If you do not report and SSA discovers unreported income, your benefits can be stopped and you may owe back payments. Most people receiving SSDI report earnings through SSA's online portal or by phone.
Self-employment and work credits
If you are self-employed, you earn work credits the same way as wage earners — based on your net self-employment income reported on your tax return. You must file a tax return to have your self-employment income counted toward work credits, even if your net income is below the filing threshold. SSA does not count income you do not report to the IRS.
Self-employed people also count toward the SGA limit if they are working while receiving SSDI. SSA looks at your average monthly net earnings from self-employment. If that average exceeds the SGA limit, your benefits are affected the same way they would be for a wage earner. You must report your self-employment income to SSA each month, just as you would report wages.
Frequently Asked Questions
Can I get SSDI if I have not worked in several years?
Yes, if you earned enough work credits before you stopped working. Work credits do not expire. If you earned 40 credits by age 35 and became disabled at age 50, those credits still count. However, you must also meet the "recency" requirement — at least 20 of your 40 credits must have been earned in the 10 years before disability began. If you stopped working 15 years ago, you would not meet this requirement.
What if I worked under a different name or Social Security number?
You must report this to SSA when you file for SSDI. Bring documentation of the name change (marriage certificate, court order, etc.) and any W-2 forms or tax returns filed under the previous name. SSA can consolidate earnings records under different names if you provide proof of the connection. Without this documentation, those earnings will not count toward your work credits.
Do work credits earned in other countries count?
Generally, only work covered by the U.S. Social Security system counts toward SSDI. However, if you worked in a country that has a totalization agreement with the United States, some of that work may count. The U.S. has totalization agreements with about 30 countries. Contact SSA to ask whether your foreign work history is covered.
If I am denied for insufficient credits, can I appeal?
You can request reconsideration, but SSA will review the same work history. An appeal is useful only if you believe SSA made an error in counting your credits — for example, if you earned credits that were not recorded on your account. If your work history genuinely does not meet the requirement, reconsideration will not change the outcome. Your better option is to continue working, earn more credits, and reapply later.