Massachusetts Workers Comp Statute of Limitations
Missing this deadline doesn't just slow your claim down — in most cases, it ends it. Massachusetts law sets a hard cutoff for filing, and insurers know exactly how to use a missed date against you.
Filing Deadline
4 years
From the date of injury. Some exceptions apply — see tolling rules below. Not legal advice.
Why This Deadline Exists
The reasoning behind Massachusetts's deadline is straightforward: claims get harder to verify the longer they sit, and insurers use that to argue against late filings. The deadline forces the process to move while the facts are still clear.
When the Deadline Can Be Extended
Massachusetts, like most states, recognizes that not every injury announces itself immediately. Occupational diseases discovered well after the triggering exposure typically get a modified deadline tied to diagnosis rather than exposure date. Similar flexibility sometimes applies to minors or where an employer actively concealed a workplace injury. None of these exceptions are automatic — they require specific facts to invoke.
What Happens If You Miss It
A missed deadline in Massachusetts isn't usually something that can be fixed after the fact. The claim is typically closed to the insurer's benefit, which is exactly why acting early — even before you're certain you'll need to file — matters more than waiting for complete certainty about the injury's severity.
Massachusetts Workers Comp Rules
- Waiting period: 5 days
- Attorney contingency fee: Flat dollar amount ($466.72-$6,534.05 depending on case type/complexity), not a percentage of the award
- State agency: Massachusetts Department of Industrial Accidents