How Work Credits Work
Social Security work credits are the units SSA uses to measure your work history for SSDI eligibility. They are earned based on your wages or self-employment income in a given year. The credit system is straightforward:
- You can earn a maximum of 4 credits per year.
- In 2026, one credit equals $1,810 in earnings. So to earn the maximum 4 credits in 2026, you need $7,240 in covered earnings for the year.
- The earnings threshold per credit adjusts annually to reflect average wage growth. In 2020, for example, one credit required $1,410.
- Credits accumulate throughout your working life and never expire from your record — though whether you meet the recent work test depends on credits earned in specific years.
💡 Earnings, not hours: Credits are based entirely on how much you earned, not how many hours you worked. A part-time worker earning $7,240 in 2026 receives the same 4 credits as a full-time worker earning $75,000. Time and employment type are irrelevant — only covered earnings matter.
The Two-Part Eligibility Test
SSDI uses a two-part work credit test. You must satisfy both requirements to be insured for SSDI:
Test 1: Recent Work Test
Did you earn enough credits in the years immediately before your disability? This is sometimes called the "5 in the last 10 years" rule for most adults — you must have worked and earned credits relatively recently. The exact requirement varies by age (see table below).
Test 2: Duration of Work Test
Have you worked long enough overall during your lifetime? This requires a minimum number of total lifetime credits that varies by your age at the time of disability. Younger workers need fewer total credits because they've had less time to accumulate them.
Both tests must be satisfied. Meeting one but not the other means you are not currently insured for SSDI — though alternatives may be available (see below).
Recent Work Test: Requirements by Age
The recent work test has three age tiers:
| Age at Disability | Credits Needed | From What Period |
|---|---|---|
| Before age 24 | 6 credits | In the 3-year period ending when your disability begins |
| Age 24 through 30 | Credits for half the time | Between age 21 and the onset of disability (for example, if you became disabled at 27, that's 6 years since age 21, so you need 3 years' worth of credits = 12 credits) |
| Age 31 and older | 20 credits | In the 10 years immediately before disability onset (you must have worked 5 of the last 10 years) |
For most working adults who become disabled after age 31, the key phrase is "5 of the last 10 years." If you've had extended gaps in employment in the decade before your disability onset, you may not satisfy the recent work test — even if you have a large total number of lifetime credits.
Duration of Work Test: Total Credits by Age
The duration of work test requires a certain number of total lifetime credits. The requirement increases with age, up to a maximum of 40 credits (10 years of work) needed by age 62 and older:
| Age at Disability | Total Credits Required |
|---|---|
| Age 31–42 | 20 credits |
| Age 44 | 22 credits |
| Age 46 | 24 credits |
| Age 48 | 26 credits |
| Age 50 | 28 credits |
| Age 52 | 30 credits |
| Age 54 | 32 credits |
| Age 56 | 34 credits |
| Age 58 | 36 credits |
| Age 60 | 38 credits |
| Age 62 and older | 40 credits |
Note that for workers disabled between ages 31 and 42, the duration of work test is always 20 credits — the same as the recent work test minimum — so you only need to worry about one number. The duration test only adds a higher requirement as workers age beyond 42.
Your Date Last Insured: Why Recent Credits Create an Expiration Date
The recent work test creates what SSA calls a Date Last Insured (DLI) — essentially, an expiration date on your SSDI coverage. If you stop working and stop accumulating credits, there will come a point when you no longer satisfy the recent work test, even if you have plenty of lifetime credits.
For most workers over 31, your DLI is typically five years after you stop working — because you stop earning credits and eventually fall outside the "20 credits in the last 10 years" window. After your DLI passes, you cannot qualify for SSDI even if you become severely disabled — unless you return to work and earn more credits.
This is why acting quickly after becoming disabled matters: if your DLI is approaching or has recently passed, your window to file may be closing. For a detailed explanation, see our guide on Date Last Insured.
⚠️ Don't wait: If you stopped working years ago and are now disabled, your Date Last Insured may be sooner than you think. Check your SSA Statement immediately. If your DLI is within the next 1–2 years, file your SSDI claim now rather than delaying.
How to Check Your Work Credits
You can review your complete earnings record and current credit count at any time:
- SSA.gov/myaccount — Create or log into your My Social Security account, then view your Social Security Statement. It shows your earnings by year and estimated benefit amounts.
- Social Security Statement (mailed): SSA mails statements to workers age 60 and older who aren't already receiving benefits. Workers under 60 can request a statement by calling 1-800-772-1213 or using the online portal.
- Your denial notice: If you applied for SSDI and were denied due to insufficient work credits, the denial letter will state your DLI and explain the credit shortfall.
Review your earnings record carefully. Errors in reported earnings do occur — particularly for workers who changed names, had multiple employers, or worked self-employed. If you find a discrepancy, SSA can correct it, but you'll need documentation (W-2s, tax returns, pay stubs).
What If You Don't Have Enough Credits?
Not having enough work credits for SSDI does not necessarily mean you have no options. Consider these alternatives:
- SSI (Supplemental Security Income): SSI has no work credit requirement. It is purely needs-based, determined by your income and assets. If your resources are below SSI limits (generally $2,000 for individuals, $3,000 for couples), you may qualify for SSI regardless of work history.
- Disabled Adult Child (DAC) benefits: If you became disabled before age 22 and one or both of your parents are retired, disabled, or deceased Social Security recipients, you may qualify for SSDI benefits on their record — not your own.
- Disabled Widow/Widower benefits: If your spouse was a Social Security-covered worker and you are between ages 50 and 60 (or older) with a disability that meets SSA's criteria, you may qualify for benefits on their earnings record.
- Divorced Spouse rules: In certain circumstances, divorced spouses of covered workers may be eligible for disability benefits based on an ex-spouse's record.
A disability advocate can quickly evaluate which program — SSDI, SSI, or a derivative benefit — best fits your situation and work history.