You need both a medical condition and enough work credits to get SSDI

Social Security Disability Insurance (SSDI) requires two separate things: proof that you have a medical condition severe enough to prevent substantial work, and proof that you have worked long enough and recently enough to have earned the right to the program. The work history part is measured in work credits, which you earn by paying Social Security taxes on your wages or self-employment income. You cannot get SSDI on medical grounds alone if you do not have enough credits.

The number of credits you need depends on your age when you become disabled. Younger workers need fewer credits than older workers. You also need to have earned a certain number of those credits in the years when ready before you became unable to work—this is called the recency requirement. If you stopped working years ago and have not earned credits since, you may not meet this requirement even if you have enough total credits.

Key Takeaways

  • You earn one work credit for every $1,550 of wages or self-employment income in 2024 (the amount changes yearly), up to a maximum of four credits per year.
  • Most workers need 40 total credits, with at least 20 of those earned in the 10 years before they became disabled.
  • Younger workers may need as few as 6 credits if they became disabled before age 24, but the rules vary by age.
  • Work credits are tied to the year you earned the income, not the year you report it, so old tax returns matter.
  • Social Security will calculate your exact credit requirement based on your birth date and the date your disability began.

How work credits are earned and counted

You earn work credits by paying Social Security tax on your income. For 2024, you earn one credit for every $1,550 of wages (if you are an employee) or net self-employment income (if you are self-employed). You can earn a maximum of four credits in any single year, even if you earn much more than $6,200. This means that if you earned $1,550 in January 2024, you have one credit for 2024; if you earned $6,200 or more in 2024, you have four credits for that year.

The dollar amount that triggers each credit changes every year. Social Security publishes the new amount in October for the following year. Your employer withholds Social Security tax from your paycheck automatically, and if you are self-employed, you pay it when you file your tax return. Social Security receives this information from the IRS and records the credits in your account.

Credits are tied to the year you earned the income, not the year you report it. If you earned wages in 2020, those credits count toward your 2020 total, even if you did not file your tax return until 2021. This is why old tax returns and W-2 forms matter when Social Security reviews your work history.

The total credits you need based on your age

Most workers who become disabled at age 31 or older need 40 total work credits to be found disabled under SSDI rules. However, you do not need 40 credits if you became disabled younger than that. The rule is that you need one credit for each year you have been age 21 or older, up to a maximum of 40.

If you became disabled at age 24, you would need only 6 credits (one for each year from age 21 to 24). If you became disabled at age 28, you would need 14 credits. If you became disabled at age 31 or later, you need 40. Social Security will tell you the exact number you need once you provide your birth date and the date your disability began.

There is one exception: if you became disabled before age 24, you may need as few as 6 credits total, but you must have earned at least 3 of those credits in the 3 years before you became disabled. The recency requirement is always part of the calculation, regardless of your age.

The recency requirement: when you earned your credits matters

Having enough total credits is not enough. Social Security also requires that you earned a certain number of your credits recently—in the years just before you became unable to work. For most workers, you need at least 20 credits earned in the 10 years when ready before your disability began. This is called the recency requirement.

The 10-year window is measured backward from the date your disability began, not from today. If you became disabled in March 2024, the 10-year window runs from March 2014 to March 2024. You need at least 20 of your credits to fall within that window. If you worked steadily for 20 years and then stopped working 12 years ago, you would have plenty of total credits but would fail the recency requirement because too many of your credits are older than 10 years.

Younger workers have a different recency rule. If you became disabled before age 24, you need at least 3 credits earned in the 3 years before your disability began. If you became disabled between ages 24 and 31, you need at least half of the total credits you need, earned in the years before your disability began. Social Security will calculate the exact requirement for your situation.

How to find out how many credits you have

You can see your work credit record by creating an account on ssa.gov and viewing your Social Security Statement. The Statement shows the credits you have earned in each year since you turned 16. You can print it or read it as a PDF. This is the same record that Social Security will use when it reviews your SSDI claim.

If you see errors on your Statement—missing credits, credits attributed to the wrong year, or credits that should not be there—you can dispute them. You will need documents like W-2 forms, tax returns, or pay stubs to prove what you actually earned. Social Security has a important date for correcting errors, so if you spot a mistake, report it as soon as you can.

If you do not have online access or prefer to request a paper Statement, you can call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) or visit a local Social Security office. There is no cost to request your Statement or to dispute errors on it.

What happens if you do not have enough credits

If you do not have enough work credits, Social Security will deny your SSDI claim based on your work history alone, regardless of how severe your medical condition is. The denial letter will tell you how many credits you have and how many you need. You cannot make up missing credits by working now if you are too disabled to work, and you cannot buy credits or transfer credits from someone else.

If you are close to having enough credits—for example, you need 40 and have 38—you may be able to wait a few months and reapply if you expect to earn more credits. However, if you are unable to work because of your disability, you cannot earn new credits. In this situation, your only option is to wait until you reach full retirement age, at which point you may be found disabled under different rules, or to explore whether you meet the requirements for Supplemental Security Income (SSI), which has different financial and work history rules.

How work credits connect to your SSDI benefit amount

Work credits determine whether you are found disabled, but they do not determine how much money you receive. Your SSDI benefit amount is based on your Primary Insurance Amount (PIA), which is calculated from your average earnings over your entire work history. The higher your average earnings, the higher your SSDI benefit.

This means that someone with exactly 40 credits and someone with 50 credits might receive very different monthly payments, depending on how much they earned in each year. Social Security uses your 35 highest-earning years to calculate your average. If you have fewer than 35 years of earnings, zeros are counted for the missing years, which lowers your average.

Frequently Asked Questions

Can I count work credits from when I was self-employed?

Yes. Self-employed income counts toward work credits the same way wages do. You report it on Schedule C of your tax return, and Social Security receives the information from the IRS. You must have paid self-employment tax (Social Security and Medicare tax on your net earnings) for the credits to count.

What if I worked in another country before moving to the United States?

Work credits earned outside the United States do not count toward SSDI. Only work on which you paid U.S. Social Security tax counts. However, some countries have agreements with the United States that allow work credits to be combined under certain conditions. Contact Social Security to ask whether your country has a totalization agreement.

Do I need to have worked recently to get SSDI, or just have enough total credits?

You need both. You must have enough total credits for your age, and you must also meet the recency requirement—meaning enough of those credits must have been earned in the years just before you became disabled. Working a long time ago does not count if you have not worked recently enough.

Can my spouse's work credits help me get SSDI?

No. SSDI is based only on your own work history. Your spouse's credits cannot be combined with yours to reach the 40-credit threshold. However, if your spouse is receiving SSDI or retirement benefits, you may be able to receive benefits on their record once you reach full retirement age, but that is a different program.

What if Social Security says I do not have enough credits, but I know I worked those years?

Request a detailed earnings record from Social Security and compare it to your W-2 forms and tax returns. If there are missing or incorrect credits, file a dispute with documentation. You have a limited time to correct errors, so act quickly if you find a discrepancy.