SSDI Trial Work Period: What Counts as a Trial Work Month (2025 Rules)

If you’re on SSDI and want to test your ability to work, Social Security gives you a 9-month Trial Work Period (TWP). During those months, you can earn any amount without losing benefits — as long as you don’t exceed the Substantial Gainful Activity (SGA) threshold after the TWP ends. A trial work month is any calendar month where your gross wages or self-employment earnings exceed $1,160 (non-blind, 2025), or $1,940 if you’re blind.

Practical implication: You can try a part-time job, freelance gig, or even start a small business without immediately losing your SSDI check — but only for 9 months within a rolling 60-month window. After that, any month you earn over SGA ($1,620 in 2025) could end your benefits. The key is tracking your months accurately from the start.

How SSA Counts a Trial Work Month

The TWP threshold is lower than the SGA level. That means many part-time jobs will trigger a trial work month even if you don’t earn enough to lose benefits later. SSA uses two tests depending on whether you’re an employee or self-employed.

Employees: Gross Earnings Test

Your gross earnings (before any taxes, deductions, or insurance premiums) must be over $1,160 (non-blind) or $1,940 (blind) in a calendar month. Tips, commissions, and bonuses count as earnings in the month you receive them. If you earn exactly the threshold amount, the month does not count — it must be above.

Self-Employed: Earnings or Hours Test

SSA counts a trial work month if either:

• Your gross self-employment income exceeds $1,160 (non-blind) or $1,940 (blind), or
• You work more than 80 hours in your business during the month, regardless of profit.

Profit or loss does not matter. If you gross $1,500 but spend $800 on supplies, the full $1,500 is used for the TWP test (unless you qualify for Impairment-Related Work Expenses, discussed below).

What Counts — and What Doesn’t

Counts as a Trial Work Month

• Wages, tips, commissions, or bonuses that push your monthly gross over $1,160 (non-blind) or $1,940 (blind).
• Self-employment income over the threshold or more than 80 hours worked in the month.
• Work you perform but haven’t been paid for yet, if the work is substantial (SSA reviews case by case).
• Work you do while receiving impairment-related work expense (IWE) subsidies — but only the net after subtracting allowable expenses may be compared to the threshold (see exception below).

Does NOT Count as a Trial Work Month

• Months where gross earnings are at or below $1,160 (non-blind) or $1,940 (blind).
• Work done in a sheltered workshop (e.g., a vocational rehabilitation program) where earnings are subsidized and not representative of your true capacity.
• Months you do not perform any work, even if you receive residual pay from an earlier month.
• Months where your earnings are effectively reduced by allowable IWEs to below the TWP threshold (those months are excluded entirely).

Counter-Intuitive Angle: Profit or Loss Doesn’t Matter

Many people think that if a side business loses money, the month won’t count. SSA doesn’t care about net income. If you earn $2,000 in freelance revenue but spend $2,500 on expenses, you still have a trial work month because your gross earnings exceeded $1,160. The only exception is if those expenses qualify as IWEs — items you need because of your disability (e.g., special transportation, attendant care, or medical devices). IWEs can reduce your countable earnings, but only if SSA approves them in advance.

Three Practical Tips for Managing Your TWP

Tip 1: Track gross earnings, not take-home pay.
Actionable step: Each month, write down the amount on your pay stub before any deductions. Keep a running total.
Common mistake: Assuming a $1,000 paycheck after taxes means you’re safe. If your gross was $1,200, that’s a trial work month.

Tip 2: Stop the clock by staying under $1,160.
Actionable step: If you want to preserve your 9 months, adjust your hours or pay so you never earn above the threshold. You can work every month as long as earnings stay at or below $1,160.
Common mistake: Thinking occasional high-earning months are “no big deal.” Every month over the threshold uses up one of your nine slots — and you only get nine total within any 60-month period.

Tip 3: Use Form SSA-821 to report your work activity.
Actionable step: Download SSA-821-BK from ssa.gov and submit it by the 10th of the month after you start working. Keep a copy for your records.
Common mistake: Relying on SSA to notify you when you’ve used 9 months. SSA often lags. Check your count yourself.

Track Your TWP Months Yourself — Operator Flow

Use this step-by-step process to know exactly where you stand.

1. Start a log with columns for month, year, gross earnings (employee) or gross income/hours (self-employed), and whether the month counts.

2. Check the current TWP threshold each January. For 2025: $1,160 (non-blind), $1,940 (blind). Update your log.

3. For each working month:

• If employee: mark “counts” if gross earnings exceed the threshold.
• If self-employed: mark “counts” if gross income exceeds the threshold or you worked more than 80 hours.

4. Stop after 9 counted months — your TWP is exhausted. Any following month where earnings exceed SGA ($1,620 non-blind, $2,700 blind in 2025) could trigger benefit cessation.

Verification step: Log into your my Social Security account at ssa.gov/myaccount. Under “Work and Earnings,” you can see months SSA has flagged as trial work months. Compare to your log. If you see a discrepancy, call 1-800-772-1213.

Checkpoints:

• At month 6, confirm your count with SSA via phone or online.
• If you have a month where earnings are exactly $1,160, it does not count — but double-check (bonuses or rounding can push you over).
• If SSA sends a “Work Activity Report” request, respond within 10 days.

Escalation signals:

• SSA says you’ve used more than 9 months but your log shows fewer. Call your local SSA office or ask for a DDS examiner review.
• You believe a month should be excluded due to an IWE. File a reconsideration using Form SSA-561-U2 within 60 days of the notice.

TWP vs. SGA: Key Differences at a Glance

Feature	Trial Work Period (TWP)	Substantial Gainful Activity (SGA)
Purpose	Test work ability without losing benefits	Determines if you’re still disabled
2025 monthly threshold (non-blind)	$1,160	$1,620
2025 monthly threshold (blind)	$1,940	$2,700
Count limit	9 months in a rolling 60-month period	No limit; applies after TWP ends
Effect on SSDI benefits	Benefits continue during TWP months	Benefits stop if SGA sustained after TWP

How the TWP Fits Into the 5-Step Sequential Evaluation

The TWP applies after you’ve been approved for SSDI. It’s a work incentive program, not part of the initial disability decision. Once you start working, SSA monitors your earnings using TWP rules. If you exceed SGA after the TWP, your cash benefits stop following a 3-month grace period. If you stop working within 5 years, you can request expedited reinstatement without filing a new application.

Important: SSDI vs. SSI Work Rules

The TWP is only for SSDI. SSI (Supplemental Security Income) has its own work incentives, such as the Student Earned Income Exclusion and Plan to Achieve Self-Support (PASS). SSI counts all earned income after certain exclusions, but there is no 9-month trial period. If you receive both benefits (concurrent), the TWP affects only your SSDI; your SSI payment may still be reduced by your earnings.

Work Credits Required for SSDI Eligibility

To qualify for SSDI you generally need enough work credits:

• 20 credits earned in the 10 years before your disability began (if you’re age 31 or older).
• A different formula applies if you’re younger.

In 2025, you earn one credit for every $1,810 in covered wages, up to 4 credits per year.

Blue Book Listings and Your Medical Condition

The TWP does not re-evaluate your medical condition. Your initial SSDI approval depended on meeting a Blue Book listing or a medical-vocational allowance. You can work during the TWP without fear of losing benefits — as long as you stay within the rules. If your condition improves and you can work at SGA level after the TWP, SSA may determine your disability has ended.

Disclaimer

This article is for informational purposes only and does not constitute legal or financial advice. Social Security rules, thresholds, and forms are subject to change. Always verify current figures on the official SSA website (ssa.gov) or call 1-800-772-1213. Benefit decisions, including TWP determinations, are made by state Disability Determination Services (DDS) and may vary. If you need personalized guidance, consult a qualified disability advocate or attorney.