If you're receiving SSDI — or applying for it — one number shapes nearly every decision about working: the Substantial Gainful Activity (SGA) threshold. In 2023, that number is $1,470 per month for most beneficiaries, and $2,460 per month for those who are statutorily blind.
Understanding what SGA is, how SSA measures it, and when it applies can mean the difference between keeping your benefits and losing them.
SGA is the SSA's benchmark for measuring whether someone is working at a level that disqualifies them from SSDI. The concept has two components built into the name:
SSA uses SGA at two separate points in the SSDI process, and many people don't realize that distinction matters a great deal.
When SSA evaluates a new SSDI claim, the first question isn't about your medical condition — it's whether you're currently working above SGA. If your countable earnings exceed $1,470/month in 2023, SSA will typically deny the claim at Step 1 of the five-step sequential evaluation process, without ever reviewing your medical records.
This is why people still working full-time generally cannot receive SSDI, regardless of their diagnosis.
Once you're approved and receiving SSDI, the SGA threshold becomes the line you must stay under to keep your benefits during certain periods. But the rules here are more nuanced, because approved beneficiaries have access to work incentives that give them room to test their ability to return to work.
SSA doesn't expect SSDI recipients to never work again. Several programs allow beneficiaries to earn income — sometimes above SGA — without immediately losing benefits.
Trial Work Period (TWP) For nine months (not necessarily consecutive) within a rolling 60-month window, you can work and earn any amount without it affecting your SSDI payments. In 2023, a month counts as a trial work month when earnings exceed $1,050. During this period, SGA does not apply.
Extended Period of Eligibility (EPE) After your trial work period ends, a 36-month window opens. During these months, SSA will pay benefits for any month your earnings fall below SGA ($1,470 in 2023) and suspend them for months above it — without terminating your eligibility outright. This gives beneficiaries a safety net if their work attempt doesn't hold.
Impairment-Related Work Expenses (IRWEs) SSA may deduct certain disability-related work costs from your gross earnings before comparing them to the SGA threshold. Items like medications, specialized transportation, or equipment needed specifically because of your impairment may qualify. This can meaningfully lower your countable earnings — the figure SSA actually uses — even if your gross paycheck exceeds $1,470.
| Work Incentive | How It Affects SGA |
|---|---|
| Trial Work Period | SGA threshold doesn't apply for up to 9 months |
| Extended Period of Eligibility | Benefits paid/suspended month-by-month based on SGA |
| IRWEs | Reduce countable earnings used to measure SGA |
| Ticket to Work | May provide additional protections during participation |
SSA doesn't always use your gross wages as your countable earnings. Several factors can adjust that figure:
For W-2 employees, the calculation is usually more straightforward, but the deductions above can still shift the outcome.
The $1,470 figure is specific to 2023. SSA ties SGA thresholds to the national average wage index, which means they typically rise year over year. The blind SGA limit follows a separate formula tied to Social Security retirement benefit adjustments.
Because these numbers change annually, any reference to a specific dollar amount should always be verified against SSA's current published figures before making decisions about your work activity.
SGA captures only earned income from work activity. It does not count:
This distinction matters particularly for beneficiaries with income from multiple sources. Only what you earn through work — adjusted by applicable deductions — goes into the SGA calculation.
Whether SGA actually affects your claim or your current benefit status depends on factors that vary from person to person: how your earnings are structured, which work incentives you've already used, how far into your trial work period you are, whether your expenses qualify as IRWEs, and whether you're self-employed or salaried.
Two people earning the same gross monthly amount can have very different countable earnings — and very different outcomes — once SSA applies the relevant calculations to their specific circumstances.