The Core Difference: Time-Based vs. Income-Based

The Trial Work Period (TWP) and Substantial Gainful Activity (SGA) are two separate rules that both affect whether you keep your SSDI payments, but they measure different things. The TWP counts months of work regardless of how much you earn. SGA measures whether your monthly income is high enough that Social Security considers you no longer disabled.

During your TWP, you can work and earn any amount without losing benefits. The TWP lasts nine months (not necessarily consecutive) within a rolling 60-month window. Once your TWP ends, SGA becomes the rule that matters: if your earnings exceed the SGA limit, your benefits stop.

Understanding which rule applies to you right now determines whether you can work more hours, take a raise, or start a new job without an when ready loss of income.

Key Takeaways

  • The Trial Work Period allows you to work and earn any amount for nine months without losing SSDI payments, while SGA is an income threshold that applies after the TWP ends.
  • A month counts toward your TWP only if you earn $940 or more (2024 figure) or work 40 or more hours as self-employed; months below that threshold do not count.
  • Once your nine TWP months are used, SGA limits your earnings to $1,550 per month (2024 figure) or your benefits will stop.
  • You can return to work during your TWP without notifying Social Security in advance, but you must report your earnings accurately each month.
  • After your TWP ends, you enter a 36-month Extended may be able to access period where you can still receive benefits in months you earn below SGA, giving you a second safety net before benefits stop permanently.

How the Trial Work Period Counts Months

Not every month you work counts as a TWP month. Social Security only counts a month toward your nine-month TWP if you earn at least $940 in that month (as of 2024; this amount changes yearly) or work at least 40 hours in self-employment. If you earn less than $940 in a month, that month does not count, even if you worked part-time.

The nine months do not have to be consecutive. You could use three months in 2024, take a break, and use the remaining six months in 2025. All nine months must fall within a rolling 60-month window—meaning if you use a month in January 2024, you have until January 2029 to use the remaining months.

Once you have used all nine months, your TWP ends. From that point forward, the SGA limit applies to every month you work.

What Happens When Your Trial Work Period Ends

When your last TWP month passes, you do not lose benefits when ready. Instead, you enter a 36-month Extended may be able to access period. During these 36 months, you can still receive SSDI payments in any month your earnings fall below the SGA limit ($1,550 per month in 2024). Months where you earn above SGA, you receive no payment that month—but you keep your Medicare coverage and can return to receiving benefits the next month if your earnings drop back below SGA.

This Extended may be able to access period is a safety net. It means you are not locked out of benefits the moment your TWP ends; you have three years to test different work levels and adjust without permanently losing your status as an SSDI beneficiary.

After the 36-month Extended may be able to access period ends, if your earnings remain above SGA for a full month, your SSDI case closes. You can reopen it later only by filing a new process and going through the approval process again.

The SGA Income Limit and How It Works

The SGA limit is a monthly earnings threshold. In 2024, it is $1,550 per month for non-blind beneficiaries and $2,590 for blind beneficiaries. These amounts increase each year. If you earn more than the SGA limit in a single month, you receive no SSDI payment for that month, but you do not lose your case or your Medicare.

SGA is based on your gross earnings before taxes. If you are self-employed, it includes net profit from your business. If you work for an employer, it is your wages before deductions. Social Security does not count certain types of income toward SGA—for example, interest, dividends, rental income, or money from family members do not count.

The key difference from the TWP: during the TWP, earnings do not matter at all. After the TWP, earnings are all that matter. You could work 60 hours a week at minimum wage and stay below SGA, or work 10 hours a week at a high wage and exceed it.

Reporting Your Earnings to Social Security

You are required to report your earnings to Social Security each month, whether you are in your TWP or past it. You can report online through your my Social Security account, by phone at 1-800-772-1213, or by mail using Form SSA-777 (Earnings Report).

Social Security uses your reported earnings to determine whether you received a payment that month and whether you are still within your TWP. If you do not report earnings and Social Security discovers you worked, they may overpay you and ask for the money back later, or they may suspend your case.

Keep records of your pay stubs, invoices (if self-employed), and any other proof of earnings. Social Security may ask to see them, and having them ready speeds up the process if there is a question about your income.

When You Might Lose Benefits Under Each Rule

During your TWP, you do not lose benefits because of earnings. You lose benefits only if you stop being disabled according to Social Security's medical standards, or if you fail to report earnings and Social Security discovers unreported work.

After your TWP ends, you lose your payment for any month you earn above SGA. You do not lose your case—you straightforward receive no check that month. If you earn below SGA the next month, you receive a payment again. This continues for 36 months (your Extended may be able to access period).

If you earn above SGA for a full month after your Extended may be able to access period ends, your SSDI case closes permanently. You would have to file a new process to receive benefits again, which means going through the approval process from the start.

Planning Your Return to Work

If you are considering returning to work, knowing which rule applies to you matters. If you still have TWP months remaining, you can take a full-time job, earn as much as you want, and keep your full SSDI payment. This is the time to test whether you can sustain work without worrying about an earnings limit.

If your TWP has ended and you are in Extended may be able to access, you can work part-time or at a lower wage and still receive benefits in months you stay below SGA. This is useful if you want to work but cannot yet earn a full-time income.

If your Extended may be able to access has also ended and your case is closed, returning to work means you no longer receive SSDI. You would need to reapply if you stop working and become disabled again, which can take months or years.

Frequently Asked Questions

Can I use my Trial Work Period months all at once, or do they have to be spread out?

You can use them however you want within the 60-month window. You could work nine consecutive months and use all nine months at once, or spread them across several years. Only months where you earn at least $940 (or work 40+ hours self-employed) count toward the nine.

What if I earn exactly $1,550 in a month after my TWP ends?

If you earn exactly $1,550, you are at the SGA limit but not above it. You would receive your full SSDI payment for that month. You lose payment only in months where earnings exceed $1,550.

Do I have to tell Social Security before I start working during my Trial Work Period?

No, you do not need permission to work during your TWP. You must report your earnings each month, but you can start working without notifying Social Security in advance. Reporting happens after you earn the money, not before.

If I use up my Trial Work Period, can I get more months added later?

No. You receive nine TWP months total per SSDI case. Once you have used all nine within your 60-month window, the TWP ends permanently. After that, only the SGA limit applies.

What happens to my Medicare if I earn above SGA and lose my SSDI payment?

Your Medicare continues during your Extended may be able to access period (36 months after your TWP ends), even in months you earn above SGA and receive no payment. After Extended may be able to access ends and your case closes, you can buy Medicare coverage yourself or obtain it through another source, but you are no longer automatically covered.