What Substantial Gainful Activity Means When You Receive SSDI

Substantial Gainful Activity is how Social Security decides if you're working too much to keep your SSDI payments

Substantial Gainful Activity (SGA) is a specific earnings threshold. If you earn more than that amount in a month, Social Security counts it as work that's substantial enough to affect your disability benefits. The threshold changes each year — in 2024 it's $1,550 per month for most people receiving SSDI, and $2,590 for people who are blind. These numbers are set by federal law and announced each October for the following year.

The key word is "substantial." You can work and earn some money without losing benefits. But once you cross the SGA threshold, Social Security will review whether your condition still qualifies you for SSDI. Crossing it once doesn't automatically end your benefits — it starts a process. But if you consistently earn above SGA, your benefits will stop.

This matters because many people on SSDI want to work part-time or test whether they can return to full-time work. Understanding SGA helps you know how much you can earn without triggering a benefits review.

Key Takeaways

• The SGA threshold in 2024 is $1,550 per month for most SSDI recipients and $2,590 for people who are blind; these amounts change each year.
• Earning above SGA in a single month doesn't end your benefits immediately, but it does flag your case for review.
• Social Security counts only your net earnings (after business expenses), not gross income, and excludes certain types of income like student loans or tax refunds.
• If you're concerned about losing benefits, you can contact Social Security before you start working to discuss your specific situation and learn about work incentives.
• Returning to work above SGA for nine months or more in a rolling 60-month period will end your SSDI, though you may keep Medicare for a time.

How Social Security counts your earnings

Social Security looks at your net earnings — what you make after business expenses, not your gross paycheck. If you're self-employed, you subtract the legitimate costs of running your business. If you work for an employer, Social Security uses your gross wages, but they don't count certain deductions like taxes or health insurance premiums as part of your earnings for SGA purposes.

The month matters. Social Security counts earnings in the month you receive them, not the month you worked. If you're paid on the 15th and the 30th, both payments count toward that month's total. If a payment arrives in a different month than you earned it, it counts in the month you received it.

Some income doesn't count toward SGA at all: student loans, tax refunds, gifts, inheritance, investment income, and certain other payments. Social Security publishes a full list each year, but the basic rule is that only money you earned through work counts.

What happens when you earn above the SGA threshold

Earning more than SGA in one month doesn't immediately stop your benefits. Instead, Social Security will contact you and may schedule a medical review to determine whether your condition has improved enough that you no longer may have access to for SSDI. This review can take weeks or months.

During the review, Social Security looks at your medical records, may request new medical evidence, and may schedule a consultative exam. They're asking: has your condition changed? Can you work at the SGA level consistently? If your medical condition hasn't improved, you may keep your benefits even though you earned above SGA in that month.

However, if you earn above SGA for nine months or more within any rolling 60-month period, your SSDI will end. Those nine months don't have to be consecutive. If you work above SGA in January, skip February through April, then work above SGA again in May through December, that's nine months in a 12-month span, and your benefits will terminate.

The Trial Work Period and Extended may be able to access

Social Security offers a Trial Work Period (TWP) that gives you nine months to test your ability to work without losing benefits, even if you earn above SGA. During the TWP, you keep your full SSDI payment regardless of how much you earn. The catch: you must report your work to Social Security, and the nine months don't have to be consecutive — they accumulate over a rolling 60-month period.

After your TWP ends, you enter the Extended may be able to access Period, which lasts 36 months. During this time, you can still work and earn above SGA, but your benefits will stop in any month you earn above the threshold. However, your benefits restart automatically in any month you earn below SGA, without a new application. This gives you flexibility to scale back work if you need to.

After Extended may be able to access ends, the standard SGA rule applies: earn above the threshold and your benefits stop. You would need to reapply and go through the full approval process again if your condition worsens.

Planning your work and protecting your benefits

If you're thinking about working, contact Social Security's Work Incentives Planning and Assistance (WIPA) project before you start. WIPA counselors are free and can walk through your specific situation — how much you can earn, what your benefits will be, and what happens if your earnings change. They can also explain other work incentives like Impairment Related Work Expenses (IRWE), which let you deduct certain disability-related costs from your earnings when calculating SGA.

Keep detailed records of your earnings and expenses. Save pay stubs, invoices, receipts, and any business expense documentation. When you report your work to Social Security, you'll need to show what you earned and what you spent. Accurate records protect you if Social Security questions your earnings later.

Report your work to Social Security promptly — don't wait until the end of the month or quarter. Social Security needs current information to process your case correctly. If you're unsure whether a payment counts as earnings, ask before you report it. It's easier to clarify upfront than to deal with an overpayment later.

Other work incentives beyond SGA

Impairment Related Work Expenses (IRWE) let you deduct costs directly related to your disability from your earnings. If you need a personal assistant, special transportation, medication, or equipment to work, you may be able to deduct those costs. This can lower your countable earnings and keep you below SGA even if your gross pay is higher.

Plans to Achieve Self-Support (PASS) let you set aside income and resources for a specific work goal — like education, equipment, or business startup costs — without it counting against your benefits. A PASS plan requires paperwork and approval, but it can protect a significant portion of your earnings if you're working toward a specific objective.

The Ticket to Work program is a voluntary program that extends your work incentives and protects your benefits for a longer period while you work with an employment network. It's optional, but if you're planning to work seriously, it's worth understanding.

What changes each year

The SGA threshold increases most years because it's tied to the national average wage index. Social Security announces the new amount in October for the following year. You can find the current year's threshold on the Social Security website, or call 1-800-772-1213 to confirm the amount.

The Trial Work Period and Extended may be able to access rules don't change, but the dollar amounts that trigger reviews or benefit stops do. If you're planning to work, check the current year's SGA amount before you start, and check again each October to see if the threshold has changed.

Frequently Asked Questions

Can I work part-time and stay under SGA?

Yes, many people on SSDI work part-time and earn below the SGA threshold. In 2024, if you earn $1,550 or less per month, you're under the threshold. Part-time work at minimum wage is often below SGA, but it depends on your hours and pay rate. Calculate your expected monthly earnings before you start.

What if I earn above SGA for just one month?

One month above SGA doesn't automatically end your benefits, but it does trigger a review. Social Security will examine your medical records to see if your condition has improved. If your condition hasn't changed, you may keep your benefits. However, if you consistently earn above SGA, your benefits will eventually stop.

Do I have to report my earnings to Social Security?

Yes. You're required to report any work and earnings to Social Security. Failing to report can result in an overpayment that you'll have to repay. Report your work promptly — don't wait. Social Security has forms and phone lines specifically for reporting work.

Can I use the Trial Work Period if I've already been working?

The Trial Work Period is a one-time benefit, and months you've already worked may count toward it even if you didn't formally report them as TWP months. Contact Social Security to find out how many TWP months you have left. If you've used all nine, you're in Extended may be able to access or past it.

What happens to my Medicare if my SSDI ends because of work?

Your Medicare coverage continues for at least 93 months (about 7.5 years) after your SSDI ends due to work, even if you don't pay premiums. After that period, you can purchase Medicare coverage. This protection is one reason work incentives exist — you can test your ability to work without losing health coverage immediately.