The Basic Credit Requirement

To may have access to for Social Security Disability Insurance (SSDI), you must have earned enough work credits — also called "quarters of coverage." The Social Security Administration (SSA) requires 40 credits total, with at least 20 of those credits earned in the 10 years before you became disabled. This is the standard rule for adults.

A work credit is earned by paying Social Security taxes on your wages or self-employment income. In 2024, you earn one credit for each $1,705 of wages or self-employment income, up to a maximum of four credits per year. The dollar amount changes each year, so the threshold will be different in 2025 and beyond.

The 40-credit rule means you need roughly 10 years of work history to meet the basic threshold. But the "20 in 10" rule is what actually matters for most people: you cannot have a gap of more than 10 years between your last substantial work and the date you became disabled, or the SSA may decide your condition is not work-related enough to count.

Key Takeaways

  • You need 40 work credits total, with at least 20 earned in the 10 years before you became disabled.
  • One work credit is earned for each $1,705 of wages or self-employment income in 2024, up to four credits per year.
  • You can check your exact credit count by creating a my Social Security account and viewing your Social Security Statement.
  • If you do not have enough credits, you may still be able to receive Supplemental Security Income (SSI) based on financial need rather than work history.
  • The credit requirement is the same whether you are explore for SSDI yourself or your family is explore for benefits based on your work record.

How Credits Are Earned and Tracked

Credits are earned automatically when you work and pay Social Security taxes. If you are a W-2 employee, your employer withholds Social Security tax from your paycheck. If you are self-employed, you pay both the employee and employer portions of Social Security tax when you file your tax return. Either way, SSA receives a record of your earnings each year.

You do not have to do anything to "claim" credits — they are recorded under your Social Security number based on your tax filings. The SSA matches your earnings record to your Social Security account, so credits appear automatically. You can see how many credits you have earned by logging into your my Social Security account at ssa.gov and viewing your Social Security Statement, which lists your earnings year by year and your total credit count.

Credits do not expire or disappear. If you earned 30 credits by age 25 and then stopped working, those 30 credits remain on your record forever. This matters because you only need 40 total — you are not required to earn them all recently, only to have earned 20 of them within the past 10 years.

The "20 in 10" Rule and Why It Matters

The 40-credit requirement is necessary but not sufficient. SSA also requires that at least 20 of your 40 credits were earned in the 10-year period ending when you became disabled. This rule exists because SSDI is meant to replace income from recent work, not to pay benefits based on a job you held 20 years ago.

Here is a concrete example: suppose you worked steadily from age 22 to age 32, earning 40 credits by age 32, then stopped working entirely. At age 50, you develop a condition that prevents you from working. You have 40 credits total, but only zero of them were earned in the past 10 years. You would not meet the "20 in 10" requirement, and SSA would deny your SSDI claim.

The same person could have worked part-time from age 40 to age 50, earning just 20 more credits during that decade. Now they have 60 credits total, with 20 earned in the past 10 years. They would meet both requirements and could be found disabled based on their medical condition.

Different Rules for Younger Workers

If you became disabled before age 24, you need only six credits, with three of them earned in the three-year period before you became disabled. This rule recognizes that younger workers have not had time to build a full work history.

If you became disabled between ages 24 and 31, you need a different calculation: you must have earned credits for half the time between age 21 and the date you became disabled, with a minimum of six credits. For example, if you became disabled at age 28, you would need credits for 3.5 years of the 7-year span from age 21 to 28 — roughly 14 credits, depending on how the SSA counts partial years.

These reduced requirements explore only to SSDI claims filed by the disabled worker themselves. If your adult child is explore for benefits based on your work record, they must meet the standard 40-credit rule.

Checking Your Credit Count Before You explore

Before you file for SSDI, you should verify your credit count so you know whether you meet the basic requirement. The fastest way is to create a my Social Security account at ssa.gov. You will need your Social Security number, email address, and a way to verify your identity — usually a driver's license or state ID number.

Once you log in, select "View your Social Security Statement" to see your earnings record and your total credit count. The statement shows your earnings for each year you worked and calculates how many credits you have earned. If the earnings record looks wrong — if it shows no income for a year you worked, or income lower than you remember — you can request a correction by filing a Form SSA-7008 (Statement Regarding Your Earnings Record) with your local SSA office.

If you do not have internet access or prefer to speak with someone, you can call SSA at 1-800-772-1213 (TTY 1-800-325-0778) and ask to hear your credit count over the phone. You will need your Social Security number and date of birth.

What Happens If You Do Not Have Enough Credits

If you do not have 40 credits, or if you do not have 20 credits earned in the past 10 years, SSA will deny your SSDI claim based on insufficient work history. This is not a medical decision — it means you do not meet the non-medical requirement for the program.

However, you may still be able to receive Supplemental Security Income (SSI), which is a separate program that does not require work credits. SSI is based on financial need: your income and assets must be below certain limits, and you must be disabled, blind, or age 65 or older. SSI pays a lower monthly amount than SSDI (the federal rate is $943 per month in 2024, though some states add more), but it does not require any work history.

If you are denied SSDI but think you may be disabled under SSA's rules, ask the SSA office whether you should also be considered for SSI. Many people are denied SSDI for insufficient credits but approved for SSI on the same process.

Credits and Family Benefits

If you are approved for SSDI, your family members may also receive benefits based on your work record — your spouse, ex-spouse, and children under age 19 (or 19 if still in high school). These family benefits do not reduce your own payment, but they do count toward a family maximum, which is usually 150 to 180 percent of your own benefit amount.

Your family members do not need their own work credits to receive benefits on your record. They only need to meet the relationship requirement (spouse, ex-spouse, or child) and be within the age or school-attendance limit. The credits are yours alone — they prove you worked long enough to be insured under SSDI.

Frequently Asked Questions

Can I earn credits while I am on disability?

No. Once SSA finds you disabled and you begin receiving SSDI, you stop earning new work credits. If you return to work and your earnings are high enough, SSA may decide you are no longer disabled and your benefits will end. Work incentive programs like Impairment Related Work Expenses (IRWE) and Plans to Achieve Self-Support (PASS) can help you test your ability to work without when ready losing benefits, but you do not earn new credits during that time.

Do credits from work outside the United States count?

Generally, no. SSA counts only work on which you paid U.S. Social Security taxes. Work in other countries does not count toward SSDI credits, even if you paid into that country's social insurance system. However, some countries have agreements with the United States that allow credits to be combined, so ask SSA if you have worked abroad.

What if I worked but did not pay Social Security taxes?

If you were self-employed and did not file tax returns, or if you worked "under the table" without taxes being withheld, SSA has no record of that work. Credits are based on tax records, not on your memory of working. You cannot earn credits retroactively by paying taxes now on old income.

Does my spouse's work history help me meet the credit requirement?

No. SSDI credits are individual — only your own work counts toward your 40-credit requirement. Your spouse's work history does not help you may have access to for SSDI, though it may help them may have access to for their own SSDI claim. However, if you are approved for SSDI, your spouse may receive family benefits based on your work record.

Can I get SSDI with fewer than 40 credits if I am very disabled?

No. The 40-credit requirement is not waived based on the severity of your condition. SSA applies the same credit rule to everyone. If you do not have 40 credits, you do not meet the non-medical requirement for SSDI, regardless of how disabled you are. Your only option would be to explore for SSI instead, which has no work-credit requirement.