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State Guide · Massachusetts

Massachusetts workers' compensation — checks that can stop without warning.

Massachusetts gives workers one of America's longest filing windows — four years — and one of its most misunderstood arrangements: the pay-without-prejudice period, in which the insurer can pay you for months and then stop, without admitting your claim was ever valid. Knowing which period you're in is the difference between security and surprise.

Reviewed August 2026 11 min read Educational information — not legal advice

How the Massachusetts system works

Nearly all Massachusetts employers must carry coverage, overseen by the Department of Industrial Accidents (DIA). Disputes move through a distinctive pipeline — conciliation, conference, hearing — that resolves most cases before full trial. The wage math is also distinctive: temporary total pays 60% of your average weekly wage (not the two-thirds most states use), which surprises workers comparing notes across state lines.

Every deadline that matters

WhatDeadlineWhy it matters
Notice to your employerAs soon as possibleNo fixed grace period to lean on — same-day written notice is the standard that prevents every argument.
File a claim (Form 110) with the DIA4 years from the injury or from when you knew it was work-relatedGenerous — but only the formal claim protects you when checks stop. Don't let the long window breed complacency.
Occupational disease4 years from knowledgeDiscovery-based, same long window.

The pay-without-prejudice period

180 days of "maybe"

When your claim starts, the insurer can pay benefits for up to 180 days without accepting liability — and during that window it may stop payments with just 7 days' written notice, no judge required. (The period can even be extended by agreement — be careful what you sign.) After 180 days without a proper termination, stopping gets much harder. What this means in practice: checks arriving does not mean your claim is accepted. Calendar day 180, keep treating and documenting as if a fight is coming, and treat any extension form as a decision worth advice before signing.

Doctor choice

Massachusetts workers generally choose their own treating doctor — with one wrinkle: if the insurer has a preferred provider arrangement, it can require the first visit to go through its network. After that first scheduled visit, the choice is yours. The insurer can also send you to independent medical examinations, and in disputed DIA cases an impartial physician appointed by the judge examines you — a report that carries heavy, sometimes near-decisive weight.

The benefits

BenefitWhat it pays
Medical careAll reasonable and necessary treatment — with your chosen doctor after any required first network visit.
Temporary Total (§34)60% of your average weekly wage within state caps — payable up to 156 weeks (3 years).
Partial (§35)A percentage of the gap when you can work but earn less — payable substantially longer than total benefits.
Permanent & total (§34A)Two-thirds of AWW for those who can never return to substantial work — with cost-of-living adjustments.
Scarring/loss of function & death benefitsOne-time payments for disfigurement (face, neck, hands) and permanent loss of function; survivor and burial benefits.

How Massachusetts disputes get resolved

  1. 1

    Conciliation

    An informal DIA meeting — many stopped-check disputes restart here within weeks.

  2. 2

    Conference and order

    A judge hears summaries and issues a quick order to pay or not — appealable by either side.

  3. 3

    Hearing, impartial exam, appeals

    Full evidentiary hearing with the impartial physician's report at the center; appeals to the reviewing board and courts. Lump-sum settlements require judge approval.

Free official help

  • Department of Industrial Accidents — claim forms, conciliation, and case status: mass.gov/dia (800-323-3249).
When a lawyer makes sense in Massachusetts

Stopped checks (especially inside the 180 days), any extension-of-period form, disputed causation, impartial-exam preparation, and all lump-sum settlements. A distinctive Massachusetts feature: in successful disputed claims, the insurer often pays your attorney's fee on top of your benefits — which makes free consultations especially easy math.

Massachusetts FAQ

Inside the 180-day pay-without-prejudice period — yes, with 7 days' written notice. Outside it, stopping is much harder and often requires agreement or a judge. Either way, the response is the same: file your claim with the DIA immediately and request conciliation. Stopped checks restart more often than workers expect.
That's the Massachusetts statute — temporary total pays 60% of your average weekly wage, not the two-thirds most states use. The number to check isn't the percentage; it's the average weekly wage underneath it. Overtime, second jobs, and seasonal patterns often push the correct AWW higher than the insurer's first calculation.
Massachusetts workers' compensation has generally covered injured workers regardless of status. Report in writing, file the Form 110 well inside four years, and get case-specific guidance free.
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