If you were receiving SSDI benefits in 2019 and thinking about returning to work, one of the most important protections available to you was the Trial Work Period (TWP). Understanding how it worked that year — and how it fits into the broader structure of working while on SSDI — matters whether you were navigating it at the time or piecing together how past work activity affects your current benefit status.
The TWP is a work incentive built into SSDI that allows beneficiaries to test their ability to work without immediately losing their benefits. During the TWP, you can earn any amount of money and still receive your full SSDI payment — as long as you remain medically disabled under SSA's definition.
The SSA does not count TWP months against you in the way they count regular substantial work. It's specifically designed to reduce the risk of trying to return to work.
Each calendar year, the SSA sets a dollar threshold that defines what counts as a TWP service month — a month in which your earnings or self-employment activity triggers one of your nine trial months.
📋 In 2019, a month counted as a TWP service month if you earned $880 or more (gross) in wages, or if you were self-employed and worked more than 80 hours in the business.
This threshold adjusts annually based on changes in average wages. For reference, it was $850 in 2018 and rose slightly in subsequent years.
The TWP gives you nine service months within any rolling 60-month (five-year) window. A few important mechanics:
During the TWP, the SGA threshold is essentially irrelevant to your benefit payment. After the TWP ends, SGA becomes the primary test.
Once the TWP concludes — meaning you've used all nine months — you enter a different phase called the Extended Period of Eligibility (EPE). This is a 36-month window during which your benefits can be turned on and off based on whether your earnings exceed SGA in any given month.
| Phase | Duration | Benefit Rule |
|---|---|---|
| Trial Work Period | 9 months (in 60-month window) | Full benefits regardless of earnings |
| Extended Period of Eligibility | 36 months after TWP | Benefits paid in months below SGA; withheld above SGA |
| After EPE | Indefinite | Benefits terminated if working above SGA; must reapply or use expedited reinstatement |
If your benefits were terminated after the EPE and your condition worsens or your work stops, Expedited Reinstatement may allow you to resume benefits without filing a completely new application — but that's a separate process with its own rules.
The TWP threshold and nine-month rule applied the same way to all SSDI recipients — but how the period played out varied significantly depending on individual circumstances. 🔍
Work history and benefit onset date determined how many TWP months someone may have already used before 2019. If a beneficiary had tested work in prior years, some of those months may have already counted.
Type of work mattered. Employees have a straightforward gross wage calculation. Self-employed individuals face a different test — either the 80-hour rule or a net earnings calculation — and the SSA applies both tests to determine which applies.
Medical condition and continuing disability reviews ran parallel to work activity. The SSA can conduct a Continuing Disability Review (CDR) at any time. Even during the TWP, if a CDR determines someone is no longer medically disabled, benefits can end for medical reasons independent of the work rules.
Benefit type also played a role. The TWP applies to SSDI only — not Supplemental Security Income (SSI). SSI has its own, separate rules for how work affects benefits, including earned income exclusions and different monthly calculations. If someone received both SSDI and SSI simultaneously, two separate sets of rules applied to the same earnings.
Working during the TWP did not mean unlimited freedom from SSA oversight. Beneficiaries were — and remain — required to report all work activity and earnings to the SSA promptly. Failure to report can result in overpayments, which the SSA will seek to recover, sometimes with penalties.
In 2019, this reporting obligation was the same whether earnings were above or below the TWP threshold. The SSA uses reported wages to track TWP month usage and to prepare for the transition to EPE-level review.
If you worked during 2019 while receiving SSDI, those months may be part of your current TWP count — or may have already pushed you through the TWP and into the EPE or beyond. The 60-month rolling window means that 2019 activity could still be within the lookback period depending on when you're reading this.
Whether you've exhausted your TWP, how many months remain, and what your current work status means for your benefit eligibility isn't something that can be assessed from program rules alone. That determination depends on your complete earnings record, your benefit start date, any prior work activity reported to SSA, and your current medical status — all factors that exist in your specific case file, not in any general explanation of how the TWP works.