If you're receiving SSDI or applying for it, the term Substantial Gainful Activity (SGA) will come up constantly. In 2023, the SGA threshold is one of the most concrete numbers in the entire SSDI program — and understanding it is essential whether you're just starting an application or already on benefits and thinking about returning to work.
Substantial Gainful Activity is the SSA's benchmark for determining whether someone is working at a level that disqualifies them from SSDI. The SSA defines it by two qualities:
If your earnings exceed the SGA threshold, the SSA generally considers you capable of working — which directly affects whether you can be approved for or continue receiving SSDI benefits.
SGA thresholds adjust each year based on changes in national average wages. For 2023, the figures are:
| Category | Monthly SGA Limit (2023) |
|---|---|
| Non-blind disability | $1,470/month |
| Statutorily blind | $2,460/month |
The higher limit for blindness reflects a long-standing statutory distinction in how the SSA treats visual impairment versus other disabling conditions.
These numbers apply to gross earnings, not take-home pay, in most cases. The SSA may make adjustments for certain work-related expenses, but the starting point is what you earn before deductions.
The SGA threshold doesn't function the same way at every stage of your SSDI case. Its role shifts depending on where you are. 📋
When you first apply for SSDI, the SSA uses SGA as Step 1 of the five-step sequential evaluation. If your current earnings exceed $1,470/month (in 2023), your application can be denied at this step without ever reviewing your medical records. This is one of the fastest ways an application gets stopped.
If your earnings are below SGA — or you aren't working at all — the SSA moves on to evaluate your medical condition.
Once you're approved and receiving benefits, SGA still matters — but the rules change. SSDI includes a Trial Work Period (TWP) designed to let beneficiaries test their ability to return to work without immediately losing benefits.
During the TWP, you can work and earn any amount for up to 9 months (within a rolling 60-month window) without triggering a benefits suspension. The TWP has its own separate monthly earnings threshold — in 2023, that figure is $1,050/month.
After the TWP ends, the SGA threshold ($1,470/month) becomes the governing standard. If you consistently earn above it, your benefits can be suspended or terminated.
After your TWP, you enter a 36-month Extended Period of Eligibility (EPE). During this window, your benefits can be reinstated in any month your earnings drop below SGA — without filing a new application. This is an important safety net that many beneficiaries don't know they have.
Not all income or activity is treated the same. A few key distinctions:
SGA isn't just a cutoff — it's a signal. When the SSA looks at whether you're engaging in SGA, they're asking a bigger question: Is this person able to participate in competitive employment at a meaningful level?
That framing matters in a few specific situations:
The threshold itself is fixed for a given year, but how it's applied varies considerably. The key variables include:
Someone earning $1,500/month in a standard wage job faces a different SGA analysis than someone who is self-employed at the same income level, or someone whose employer is subsidizing their performance. Same dollar amount — potentially different outcome.
The 2023 SGA figures give you the framework. But where your own earnings, work history, and benefit status fit within that framework is a separate calculation entirely — one that depends on details the threshold alone can't resolve.