If you're receiving SSDI — or applying for it — one number shapes almost everything about your ability to work: the Substantial Gainful Activity (SGA) threshold. In 2025, that number has been updated, and understanding exactly what it means (and what it doesn't mean) can be the difference between keeping your benefits and losing them.
Substantial Gainful Activity is the SSA's way of measuring whether someone is working "too much" to qualify as disabled under the program's rules. The idea is straightforward: SSDI exists for people who cannot support themselves through work due to a disabling condition. If you're earning above a certain level, the SSA presumes you can support yourself — regardless of your diagnosis.
SGA applies at two critical moments:
The SSA adjusts SGA thresholds annually based on changes in the national average wage index. For 2025, the SGA limits are:
| Category | Monthly SGA Limit (2025) |
|---|---|
| Non-blind SSDI recipients | $1,620/month |
| Blind SSDI recipients | $2,700/month |
The higher threshold for blindness is set by statute and has historically been more generous than the standard limit. These figures apply to gross earnings — before taxes or deductions — in most cases.
📌 These amounts adjust annually, so always verify the current figure directly with the SSA or at ssa.gov.
Gross wages are the starting point, but the SSA doesn't always stop there. They may apply work-related deductions that can reduce your countable earnings below the SGA line, including:
The result after these deductions is your countable earnings — and that's the number compared to the SGA limit.
Many SSDI recipients don't realize that once they've been approved, there's a protected window for testing their ability to return to work. This is the Trial Work Period (TWP).
During your TWP — which lasts for 9 months (not necessarily consecutive) within a rolling 60-month window — you can earn any amount without it affecting your benefits. The SGA limit is not applied during the TWP.
The TWP has its own monthly earnings threshold (separate from SGA), which also adjusts annually. In 2025, a month counts toward your 9 TWP months if you earn more than $1,110.
After your 9 TWP months are used, you enter the Extended Period of Eligibility (EPE), which lasts 36 months. During the EPE, the SGA limit does apply — any month you earn over $1,620 (2025 figure) is a month your benefits can be suspended.
| Work Phase | SGA Applied? | Duration |
|---|---|---|
| Trial Work Period | ❌ No | 9 months within 60-month window |
| Extended Period of Eligibility | ✅ Yes | 36 months after TWP |
| After EPE ends | ✅ Yes | Indefinite |
The SGA test functions somewhat differently depending on where you are in the SSDI process.
At the application stage, exceeding SGA is typically a hard stop. The SSA conducts what's called a Step 1 review under the five-step sequential evaluation process. If your current earnings exceed the SGA limit, most claims are denied at this step — no medical review occurs.
After approval, the SSA conducts periodic Continuing Disability Reviews (CDRs), during which your work activity is evaluated. Crossing the SGA threshold post-EPE can trigger benefit cessation, though an appeals process exists if you disagree with their determination.
For self-employed SSDI recipients or applicants, the SGA calculation gets considerably more complicated. The SSA doesn't simply look at income — they analyze:
Someone running a small business may find their countable earnings assessed differently than a traditional wage earner, even with identical net income on paper.
Whether the 2025 SGA limit affects your situation depends on factors the SSA weighs individually:
Two people earning the same gross monthly income can have very different countable earnings after deductions — and a different outcome under the SGA test as a result.
The 2025 figures give you the framework. Applying that framework to your own earnings, deductions, and position in the SSDI lifecycle is where the specifics of your situation become the deciding factor.