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

To receive Social Security Disability Insurance (SSDI), you must have earned enough work credits through payroll taxes. The standard requirement is 40 credits total, with at least 20 of those credits earned in the 10 years before you became disabled. You earn one credit for each $1,550 of wages in 2024 (the amount changes yearly), and you can earn a maximum of four credits per year.

This means most people need to have worked roughly 10 years in their lifetime, with at least 5 of those years being recent. The Social Security Administration (SSA) checks your earnings record when you file to count the credits you have already earned.

The 20-credits-in-10-years rule is the one that trips up people who worked steadily earlier in life but took time away from the workforce. If you stopped working 12 years ago, you may have 40 lifetime credits but fail the recency test, and SSA will deny your claim on that basis alone.

Key Takeaways

  • You need 40 work credits total, with at least 20 earned in the 10 years when ready before you became disabled.
  • You earn one credit per $1,550 of covered wages (2024 amount), up to four credits per year, so most people reach 40 credits after about 10 years of work.
  • The recency requirement (20 credits in 10 years) is separate from the lifetime total and is why people who worked long ago but recently stopped may not meet the rules.
  • If you do not have enough credits, you cannot receive SSDI, though you may be able to receive Supplemental Security Income (SSI) if your income and resources are low enough.
  • SSA will tell you exactly how many credits you have on your Social Security statement or when you request a benefit verification letter.

How Credits Are Earned and Counted

You earn work credits only on wages or self-employment income that is subject to Social Security payroll tax. This includes W-2 wages from an employer and net self-employment income reported on Schedule SE. Income from investments, rental property, or other sources does not count toward credits.

The dollar amount needed per credit changes each year. In 2024, you need $1,550 in covered earnings to earn one credit. In 2023, it was $1,470. SSA publishes the current year's amount on its website each October. Even if you earn $6,200 in a single year, you still earn only four credits (the annual maximum), not more.

Credits stay on your record permanently. Once you have earned a credit, it does not expire or disappear. This is why someone who worked 20 years ago and then stopped can still have those old credits count toward the 40-credit lifetime total—they just may not meet the recency requirement.

Why the 10-Year Recency Rule Exists

The 20-credits-in-10-years requirement ensures that people receiving SSDI have been in the workforce recently enough to have a genuine connection to the Social Security system. SSA applies this rule strictly: if you became disabled on January 15, 2024, SSA looks back to January 15, 2014, and counts only credits earned on or after that date.

This rule creates a hard boundary that does not bend for individual circumstances. Someone who worked full-time for 30 years, then took five years off to care for a family member, and then became disabled may have 40 lifetime credits but only 15 credits in the past 10 years. SSA will deny the claim because the recency requirement is not met, even though the person clearly has a substantial work history.

If you are currently not working and worried about losing credits, understand that you do not lose credits you have already earned. The risk is that if you remain out of the workforce, your 10-year window will eventually contain fewer and fewer recent credits, and you may fall below the 20-credit threshold.

Younger Workers and the Special Rules

If you become disabled before age 24, the credit requirements are lower. You need only six credits earned in the three years when ready before you became disabled. This rule recognizes that younger people have not had time to build a full work history.

Between ages 24 and 31, the rule is different again: you need credits equal to one credit for each year from age 21 to the year you became disabled, with a minimum of six credits. For example, if you became disabled at age 28, you would need seven credits (one for each year from 21 to 28), assuming you have them.

At age 31 and older, the standard 40-credit rule with the 20-in-10-years recency requirement applies. These younger-worker rules exist because it would be unfair to require someone who became disabled at age 22 to have 10 years of work history.

How to Check Your Work Credits

You can see your work credits on your Social Security Statement, which you can view online by creating an account at ssa.gov. The statement shows your earnings history year by year and displays the number of credits you have earned. You can also request a paper statement by mail if you do not have online access.

If you are filing for disability, SSA will provide a detailed credit count in the decision letter. If SSA denies your claim partly or wholly because of insufficient credits, the letter will state exactly how many credits you have and how many you need. This is the official record you would use if you decide to appeal or consult with a disability lawyer.

Do not rely on memory or rough estimates. Errors in your earnings record do happen—an employer may have reported wages under the wrong name or Social Security number, or a year of self-employment income may not have been posted. If you find a discrepancy, you can request a correction by filing Form SSA-7008 with SSA, though you generally have only three years, three months, and 15 days from the end of the year in which the wages were earned to correct them.

What Happens If You Do Not Have Enough Credits

If you do not meet the work-credit requirements for SSDI, you cannot receive SSDI benefits. This is not a discretionary decision—SSA cannot waive the credit requirement or make exceptions based on how severe your condition is or how much you need the money.

However, you may be able to receive Supplemental Security Income (SSI) instead. SSI is a needs-based program that does not require work credits. To receive SSI, your income and resources must fall below certain limits (in 2024, the resource limit is $2,000 for an individual), and you must meet SSA's medical definition of disability. SSI payments are typically lower than SSDI, and the rules are stricter about what income and assets you can have.

If you are close to meeting the credit requirement—for example, you have 38 credits and need 40—you may be able to return to work part-time to earn the remaining credits before filing. This is a decision to make with a disability lawyer or work incentives counselor, because earning income can affect your benefits in other ways.

Credits and Other SSDI Rules

Meeting the work-credit requirement is only the first step. You must also meet SSA's medical definition of disability, which is strict: your condition must prevent you from doing any substantial gainful activity (in 2024, earning more than $1,550 per month) and must be expected to last at least 12 months or result in death. Having enough credits does not mean SSA will approve your claim if your medical evidence does not support disability.

Additionally, if you are receiving SSDI and return to work, your benefits do not stop when ready. SSA has work incentives like the Trial Work Period (nine months in which you can earn any amount without losing benefits) and the Extended may be able to access Period (36 months in which you can still receive benefits if your earnings drop below the substantial gainful activity level). These rules exist to encourage people to test their ability to work without losing their safety net, but they are separate from the credit requirement.

Frequently Asked Questions

Can I use my spouse's work credits if I do not have enough of my own?

No. SSDI is based on your own work record only. Your spouse's credits do not count toward your disability claim. However, if your spouse is receiving SSDI or retirement benefits, you may be able to receive benefits as a spouse or ex-spouse based on their record—but that is a different program with different rules.

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

Generally, work outside the United States does not count toward Social Security credits, even if you paid taxes there. However, the United States has totalization agreements with some countries that allow work in those countries to count. You would need to contact SSA directly to find out whether your country has such an agreement and provide documentation of your foreign work history.

If I become disabled, do I stop earning credits?

Yes. Once you are approved for SSDI, you stop earning new work credits. The credits you have already earned remain on your record and count toward any future benefits (such as retirement benefits when you reach full retirement age), but you do not accumulate new credits while receiving disability benefits.

Can I appeal if SSA says I do not have enough credits?

You can appeal, but only if you believe SSA made an error in counting your credits or in determining when you became disabled. You cannot appeal the credit requirement itself—it is set by law. If SSA miscounted your credits, you can request reconsideration and provide evidence of additional earnings. A disability lawyer can help you identify whether an error occurred.

Do credits expire if I do not file for disability right away?

Credits themselves do not expire, but the recency requirement does matter. If you became disabled in 2020 but do not file until 2025, SSA will still look back 10 years from your disability date (2010), not from your filing date. If you did not earn 20 credits between 2010 and 2020, you will not meet the requirement, even though you have 40 lifetime credits.