If you're receiving SSDI — or applying for it — one of the most practical questions you'll face is how much you're allowed to earn from work. The answer hinges on a concept called Substantial Gainful Activity, or SGA. Understanding how SGA works in 2023 is essential to protecting your benefits and making informed decisions about employment.
SGA is the SSA's way of measuring whether your work activity is significant enough to disqualify you from SSDI benefits. It's defined by two factors: the nature of the work and how much you earn from it.
For most SSDI recipients, the earnings threshold is the number that matters most. If your monthly gross wages exceed the SGA limit, SSA may determine you are no longer disabled — regardless of your medical condition.
In 2023, the SSA set the following monthly SGA limits:
| Category | 2023 Monthly SGA Limit |
|---|---|
| Non-blind disability | $1,470/month |
| Statutory blindness | $2,460/month |
These figures adjust annually based on changes in the national average wage index. The threshold for people who are statutorily blind is always set higher than the general limit — a distinction written directly into Social Security law.
The income limit doesn't function the same way at every stage of your SSDI involvement. Its impact depends on whether you're applying, already approved, or participating in a work incentive program.
When SSA evaluates a new application, the first thing they check is whether you're currently working above the SGA threshold. If your earnings in 2023 exceed $1,470/month, SSA will typically stop reviewing your claim right there — before examining your medical records, work history, or anything else.
This is called a Step 1 denial, the first rung of SSA's five-step sequential evaluation process. Earning above SGA doesn't mean you aren't disabled. It means SSA won't evaluate whether you are.
Once you're approved, a Trial Work Period (TWP) changes the equation significantly. For a limited time, you can test your ability to return to work without immediately losing benefits — even if you earn above SGA.
In 2023, any month in which you earn more than $1,050 counts as a trial work month. You're allowed nine trial work months within a rolling 60-month window. During those nine months, SSA continues paying your full benefit regardless of how much you earn.
After the trial work period ends, a 36-month Extended Period of Eligibility (EPE) begins. During the EPE, SSA evaluates your earnings month by month. If your income exceeds the SGA threshold in any given month, your benefit may be suspended or terminated for that month — but you can reclaim it for months when earnings fall back below SGA, without reapplying from scratch.
Not every dollar you receive is treated the same way.
Generally counted toward SGA:
Generally not counted toward SGA:
For self-employed individuals, SSA doesn't rely solely on income. They also evaluate the time you spend and the value of services you provide to the business — which makes the SGA calculation more complex for people who work for themselves.
One often-overlooked provision: if you pay out of pocket for items or services that allow you to work because of your disability, SSA may deduct those costs before comparing your earnings to the SGA limit. These are called Impairment-Related Work Expenses (IRWEs).
Examples might include specialized transportation, certain prescription medications, or adaptive equipment. The deduction doesn't apply automatically — you must document the expenses and report them to SSA.
Earnings above SGA are one reason SSA can suspend or terminate SSDI — but not the only one. 📋 SSA also conducts Continuing Disability Reviews (CDRs) on a periodic basis to determine whether your medical condition still meets the definition of disability. Those reviews are separate from any income question.
Additionally, if you're receiving both SSDI and Supplemental Security Income (SSI) — a combination sometimes called "concurrent benefits" — different income rules apply to the SSI portion. SSI has its own income calculation that counts wages differently and includes an exclusion for the first $65 of earned income per month, plus half of anything above that.
Two people both earning $1,200/month in 2023 can be in very different positions:
The same dollar amount produces three entirely different outcomes depending on where each person stands. 📊
The 2023 SGA threshold, the trial work rules, the EPE window, and the IRWE deduction are all part of the same system — and understanding how they connect gives you a much clearer picture of how SSDI treats work. What this framework can't tell you is which of these provisions applies to your current situation, how your specific work history and medical record factor in, or what SSA's records show about your benefit status. That intersection — between the rules and your circumstances — is where individual outcomes are actually determined.