If you're receiving SSDI — or applying for it — one number matters more than almost any other: the Substantial Gainful Activity (SGA) threshold. In 2024, that number is $1,550 per month for most disability recipients, and $2,590 per month for those who are statutorily blind.
These figures adjust annually, so what applied in 2023 or 2022 is not what applies today.
Substantial Gainful Activity is the SSA's way of measuring whether you're working at a level considered incompatible with a disability determination. The concept is central to SSDI in two separate ways:
At the application stage — SSA checks whether you're currently earning above SGA. If you are, they'll typically stop the evaluation before even reviewing your medical records. Earning too much at the time you apply is one of the fastest routes to a denial.
After approval — If you return to work, SGA determines whether your benefits can continue. Consistently earning above the limit is what SSA uses to decide whether you've engaged in "substantial" work activity that may end your benefit eligibility.
This distinction matters. SGA isn't just an application hurdle — it's an ongoing benchmark that follows you throughout your time on SSDI.
| Category | 2024 Monthly SGA Limit |
|---|---|
| Non-blind disability recipients | $1,550 |
| Statutorily blind recipients | $2,590 |
The higher threshold for blind recipients reflects a specific statutory provision in the Social Security Act — it is not a general accommodation available to other disabilities, regardless of severity.
Gross wages aren't always the final word. SSA may deduct certain work-related expenses before comparing your earnings to the SGA limit. These are called Impairment-Related Work Expenses (IRWEs) — costs directly tied to your disability that allow you to work, such as specialized equipment, medications, or transportation accommodations.
If your gross earnings appear to exceed $1,550 but you have documented IRWEs, SSA may reduce the countable income figure before making an SGA determination. The operative word is documented — you'll need records.
SSA may also look at the nature of your work, not just the paycheck. If you're self-employed, the calculation gets more complex. SSA examines factors like hours worked, the value of your services to the business, and whether any unpaid help from others inflates what you appear to produce on your own.
One of the most misunderstood points: during the Trial Work Period (TWP), the SGA threshold doesn't apply.
The Trial Work Period allows SSDI recipients to test their ability to return to work for up to 9 months (not necessarily consecutive) within a rolling 60-month window without immediately losing benefits. In 2024, any month in which you earn more than $1,110 counts as a TWP month.
After you've used all 9 TWP months, SGA becomes the controlling standard again. This is when the $1,550 figure comes back into play. If you earn above SGA consistently after your TWP is exhausted, SSA will initiate a Cessation of Benefits review.
After the TWP ends, you enter a 36-month Extended Period of Eligibility (EPE). During this window, you remain eligible to receive benefits for any month in which your earnings fall below SGA — even if you've been working above it in other months.
Think of it as a safety net during re-entry to work. You don't automatically lose all future benefits the moment you first exceed SGA post-TWP. But if your earnings stay above $1,550 consistently, SSA will eventually terminate benefits.
The SGA limit is a single number, but how it applies to any given person depends on a range of factors:
Two people earning $1,600 a month can face entirely different SGA outcomes depending on these variables.
Someone with well-documented IRWEs and a recent approval may have significant room to earn before hitting countable SGA. Someone who has exhausted their Trial Work Period months, has no deductible expenses, and is in the final months of their EPE faces a much narrower margin.
An applicant with no current earnings is in a different position than an approved recipient testing a return to part-time work. A self-employed person managing their own hours faces scrutiny that a W-2 employee typically doesn't.
The 2024 SGA threshold is public information — $1,550 for most recipients. How that number intersects with your specific earnings, your benefit stage, your work type, and your documented costs is where the program's complexity lives, and where individual outcomes diverge.