If you're receiving SSDI — or thinking about working while on it — the Substantial Gainful Activity (SGA) threshold is one of the most important numbers you need to know. It's the monthly earnings limit the Social Security Administration uses to decide whether you're working "too much" to qualify for or continue receiving disability benefits.
Substantial Gainful Activity is SSA's way of measuring whether your work activity is significant enough to suggest you're no longer disabled under their definition. It's not about how hard the work is, how many hours you put in, or what your job title is. It comes down to how much you earn per month.
If your gross earnings consistently exceed the SGA threshold, SSA may determine you're engaging in substantial gainful activity — which can affect both your initial eligibility and your ongoing benefits.
SSA adjusts SGA thresholds annually based on changes in the national average wage index. For 2025, the SGA figures are:
| Category | Monthly SGA Limit (2025) |
|---|---|
| Non-blind disability | $1,620/month |
| Statutorily blind | $2,700/month |
These figures apply to gross earnings — before taxes or deductions — in most cases. The higher threshold for blindness is set separately by statute and has always been more generous.
For reference, the 2024 non-blind SGA was $1,550/month, so the 2025 amount reflects a modest upward adjustment. These numbers shift most years, so any figure you read online should be verified against the current SSA schedule.
The role SGA plays isn't the same at every stage. This is where many people get tripped up.
When you first apply for SSDI, SSA checks whether you're currently working above SGA. If you are, they typically stop the evaluation right there — you won't move forward to the medical review. Your earnings in the months leading up to and during your application matter here.
Once you're receiving SSDI, SSA continues to monitor your work activity. There are structured protections built into the program — most notably the Trial Work Period (TWP) — but SGA still anchors the overall framework.
Not every dollar you receive from work counts the same way. SSA allows certain deductions when calculating your countable earnings:
The threshold itself is fixed — $1,620 for most SSDI recipients in 2025. But how it applies to you depends on factors SSA evaluates individually:
Two people earning exactly $1,650 a month could face very different outcomes depending on their circumstances. One might have IRWEs that bring their countable earnings below SGA. Another might be mid-Trial Work Period, making the amount temporarily irrelevant to their benefit status.
The 2025 SGA of $1,620 is a bright-line figure — but it operates within a system full of stages, protections, exceptions, and individual variables. Knowing the number tells you where the line is. It doesn't tell you where you stand relative to it, or which rules apply to your situation right now.
Your work history, the structure of your employment, which phase of the SSDI work incentive timeline you're in, and whether you have deductible disability-related expenses all shape what SGA actually means for your benefits. That's the piece the number alone can't answer.