Permanent Partial vs Permanent Total Disability in Massachusetts Workers Comp: What Each One Pays

If a work injury in Massachusetts is not going to heal all the way, sooner or later someone will start using the words permanent partial or permanent total disability. Those labels decide how your weekly check is calculated, how long it lasts, and whether it ever rises with the cost of living, so they are worth understanding before an insurer or a doctor pins one on your file. Massachusetts also handles permanent partial disability differently from most states, and people who arrive expecting an impairment rating that converts into a lump sum are often surprised. This post walks through both categories under Chapter 152 of the General Laws and puts real numbers on each.

Massachusetts does not pay permanent partial disability the way most states do

In many states, a doctor assigns a percentage impairment rating and the comp system pays a scheduled award based on it. Massachusetts does not work that way for weekly benefits. Partial disability here is a wage loss benefit under Section 35. It compares what you earned before the injury with what you can earn after it and pays a percentage of the gap. Whether the partial incapacity is temporary or permanent, the weekly formula is the same. What a permanency finding changes is how long the benefits can run.

Partial incapacity under Section 35: 60 percent of the difference

Section 35 says that while your incapacity for work is partial, the insurer pays 60 percent of the difference between your average weekly wage before the injury and the weekly wage you are capable of earning after it, with a ceiling of 75 percent of what you would receive on total incapacity under Section 34. Our earlier guide to how much workers comp pays in Massachusetts covers the Section 34 formula, and the Massachusetts workers comp calculator on this site runs the arithmetic for you.

Here is a worked example. Your average weekly wage was $1,200, and after the injury you can only handle part-time light duty paying $600 a week. The difference is $600, and 60 percent of that is $360 a week. Ceiling check: your Section 34 rate would be $720, and 75 percent of $720 is $540, so the $360 stands. If you cannot find work at all but an administrative judge assigns you an earning capacity anyway, the benefit is calculated against that assigned figure. That is why fights over earning capacity sit at the center of most partial disability disputes in Massachusetts.

Hurt on the job in Massachusetts? Get a free case review from a Massachusetts workers compensation attorney. Call 617-683-1983.

How long partial benefits last, and where the word permanent comes in

The standard cap on Section 35 benefits is 260 weeks, five years. It can be extended to 520 weeks if the insurer agrees or an administrative judge finds that, as a result of the work injury, you have one of three things: a permanent loss of 75 percent or more of a bodily function or sense listed in specific paragraphs of Section 36 (the eyes, arms, hands, legs and feet), a permanently life-threatening physical condition, or a permanently disabling occupational disease of a physical nature and cause. The statute directs that those losses be measured under the American Medical Association Guides to the Evaluation of Permanent Impairment.

A second cap catches people off guard. Section 35 also limits the combined weeks you can collect under Sections 34 and 35 together: 520 weeks with a permanency finding, 364 weeks without one. Since total incapacity under Section 34 can run up to 156 weeks, a worker who uses all 156 and then moves to partial benefits without a permanency finding has 208 weeks of partial left, not 260. The two sections draw from the same pool.

Permanent and total incapacity under Section 34A: two-thirds, not 60 percent

Section 34A covers the worker whose incapacity is both permanent and total. The insurer pays two-thirds of your average weekly wage before the injury, subject to the statutory maximum and minimum. Two things deserve attention. First, the rate is higher than the 60 percent paid for temporary total incapacity under Section 34. A lot of articles flatten the two into one number, and they are not the same. Second, Section 34A has no week limit written into it. Benefits continue as long as the incapacity remains permanent and total, which for many workers means for life. The statute describes these benefits as following the Section 34 and 35 payments, so a worker usually reaches this status after total benefits run out or when a judge finds the condition permanent and total.

Back to the $1,200 example. Under Section 34, that worker receives $720 a week. Under Section 34A, the same worker receives $800. Both fall between the current maximum weekly rate of $1,922.48 and the minimum of $384.50, which the Department of Industrial Accidents sets for injuries on or after October 1, 2025. Those rates reset every October 1, so an injury after October 1, 2026 will be governed by a new table. A worker whose average weekly wage was $3,300 would be capped at $1,922.48 under either section.

The cost of living adjustment only permanent total recipients get

This is what separates the two categories over the long run. Under Section 34B, October 1 of each year is a review date. Anyone on permanent and total benefits under Section 34A whose date of injury is at least 24 months before that date has their weekly benefit adjusted automatically, without applying. The adjustment tracks the change in the state average weekly wage since the injury, capped at the lesser of the regional consumer price index change or five percent in any year, and the adjusted benefit can never exceed three times the original base benefit. No increase is payable if it would reduce Social Security benefits the worker already receives.

Partial benefits under Section 35 and temporary total benefits under Section 34 get no cost of living adjustment at all. Over a permanent total claim that runs twenty years, that difference is substantial, and it is one reason insurers value a potential Section 34A case so differently from a Section 35 case once settlement talks begin.

Section 36 specific injury payments sit on top of everything else

Section 36 pays fixed sums, in addition to all other compensation, for certain permanent losses such as amputation, loss of vision or hearing, and disfigurement, each calculated as a multiple of the state average weekly wage on the date of injury. The amputation or permanent total loss of use of the major arm, for instance, pays that wage multiplied by 43, which for an injury on or after October 1, 2025 works out to roughly $82,667. This is the closest Massachusetts comes to the impairment rating model other states use, and it does not replace weekly benefits. It is added to them. The full schedule deserves its own post.

Who decides which label applies, and why it matters

The insurer makes the first call, based on your treating records and often an independent medical examination it schedules. If you disagree, the dispute goes to the Department of Industrial Accidents, through conciliation, a conference, and if necessary a hearing before an administrative judge. Our post on what to do after a workplace injury in Massachusetts covers how a claim gets started. Permanency, earning capacity, and eligibility for the 520 week extension all get decided in that process.

Those findings drive money directly. A Section 35 case has an end date both sides can see. A Section 34A case carries lifetime exposure plus a cost of living adjustment, and the insurer knows it. Which label your case wears often determines what a lump sum settlement offer looks like. And if someone other than your employer caused the injury, say a defective machine or a subcontractor on a Cambridge or Boston job site, there may be a separate negligence claim on top of comp, which we explain in our post on whether you can sue your employer for a workplace injury in Massachusetts.

If you have been told your work injury is permanent, or an insurer is trying to move you from total to partial benefits, have a Massachusetts workers compensation lawyer look at the medical file and the math before you agree to anything. Melanson Law Group represents injured workers across Massachusetts, from Cambridge and Somerville to Malden and beyond, and consultations are free. Call 617-683-1983.