Rebate Guide
Most guides to the Mass Save heat pump rebate are written for someone who owns a single-family house. In Brockton, plenty of people don't. City tax records list more than fifteen hundred three-family parcels, and well over a quarter of the city's housing units sit in buildings that hold two to four homes.
If that's you, one line in the program rules matters more than any other. It is about how your building is metered. Almost nobody explains it.
Mass Save pays $2,650 per ton for a whole-home heat pump, capped at $8,500. Partial-home installs earn $1,125 per ton. A new Basic tier pays $250 per ton. Income-qualified households can reach $16,000. Two-, three- and four-family buildings qualify for the whole-home rebate, as long as each unit is individually metered.
Two things changed, and both affect your budget.
The federal tax credit is gone. Section 25C used to cover part of a heat pump install. It no longer applies. If you are reading older advice that stacks a federal credit on top of a state rebate, that advice is out of date.
Mass Save also added a third tier. The Basic rebate pays $250 per ton and caps at $2,500. It covers cases the older tiers left out, like swapping an existing heat pump for a new one. Those jobs used to earn nothing at all.
Your tier depends on one question. Does the heat pump become the only thing heating the space it serves?
Two bonuses can be added, and both are partial-home only. A $500 Right-Sized Equipment bonus rewards correct sizing. A $500 Weatherization bonus rewards completing the insulation work an assessment recommends.
Income-qualified households follow a different path with more money attached. That route reaches up to $16,000.
Here is the line that decides things for a large share of this city, straight from the program's own eligibility rules:
Equipment must be installed in individually metered 1-4 unit buildings or townhouses to receive the whole-home rebate.
Read that carefully, because two separate facts live inside it.
First, a triple-decker qualifies. A two-family, three-family or four-family building is eligible for the whole-home rebate. Many owners assume multi-family means commercial programs and never apply. That assumption costs them money.
Second, the metering is the condition. The building has to be individually metered. If your three-family has one meter serving everything, you do not meet this requirement for the whole-home rebate. If each unit has its own meter, you do.
There is a third detail worth knowing. The program limits one rebate per customer account, with a maximum of $25,000. In an individually metered three-family, each unit is its own account. Work through what that means for a building where all three units are converted, and talk it through with your contractor before anyone files paperwork.
This also shapes the design. A single multi-zone outdoor unit serving all three apartments looks cheaper on a quote. It also puts the whole building on one compressor and one meter, which can work against both the metering requirement and the per-account structure. Separate systems per unit cost more upfront and keep that structure clean.
One more distinction. Buildings with five or more units sit in a different category, where weatherization is encouraged but not required.
Qualifying is less about paperwork volume than about a few specific conditions.
The equipment has to be on the list. Systems must be ENERGY STAR certified and appear on the Mass Save Heat Pump Qualified Products List. Efficient is not the same as listed.
Whole-home rebates need a signed form. A Whole-Home Heat Pump Verification Form must be completed and signed. This is the step that separates a whole-home claim from a partial-home one.
Weatherization recommendations must be done. If a Home Energy Assessment recommends insulation or air sealing, that work needs completing. Heat pumps installed for whole-home heating that miss this requirement may still be eligible for partial-home rebate amounts, which is a meaningful fallback rather than a rejection.
The home has to be lived in. Rebates are only available to residences occupied full time during the winter heating season. For a landlord, that means an occupied unit, not a vacant one held between tenants.
Brockton sits in National Grid territory. Your sponsoring utility is the one that pays the claim. Stoughton, Easton and Abington all have investor-owned utilities too, so the same rules apply in each town.
The rebate covers part. The HEAT Loan covers more of the balance at 0% APR, up to $25,000.
It applies to qualifying efficiency upgrades, not just the heat pump itself, so insulation work bundled with the install can often go on the same loan. A bank still has to approve you.
For an owner converting more than one unit, the financing conversation is worth having early. Sequencing the work across seasons sometimes fits budgets better than doing an entire building at once.
How much is the Mass Save heat pump rebate?
A whole-home system earns $2,650 per ton, capped at $8,500. Partial-home installs earn $1,125 per ton against that same cap, and the newer Basic tier pays $250 per ton up to $2,500. There is also an enhanced path for income-qualified households, reaching $16,000.
Does Mass Save cover a two- or three-family house?
Yes. The rules state that equipment must be installed in individually metered 1-4 unit buildings or townhouses to receive the whole-home rebate. So a triple-decker qualifies, provided each unit has its own meter. Buildings of five or more units fall under different requirements.
Do ductless mini-splits qualify for the rebate?
Yes. Mass Save treats ducted and ductless air-source systems the same way. What matters is that the equipment is ENERGY STAR certified and listed on the Heat Pump Qualified Products List, and that the installation meets the conditions for whole-home or partial-home status.
Is there still a federal tax credit for heat pumps in 2026?
No. The Section 25C credit no longer applies. For most Massachusetts households, Mass Save is now the incentive to plan around. Older guides that stack a federal credit on top of the state rebate are describing a situation that has ended.
Do I need a Home Energy Assessment before installing?
For a whole-home rebate, effectively yes. Weatherization recommendations made during an assessment must be completed. Skipping it does not always disqualify you, since systems that miss the requirement may still earn partial-home rebate amounts instead.
The Mass Save heat pump rebate is worth more to Brockton owners than most of them realize. The headline numbers are strong on their own, at $2,650 per ton and up to $8,500 per home.
The part that changes the math here is the multi-family rule. In a city where a quarter of the housing sits in two- to four-family buildings, the fact that individually metered buildings qualify for the whole-home rebate, and that the cap applies per customer account, is the difference between one rebate and a very different conversation.
Two things to settle before you commit. Confirm how your building is metered, because that condition is not negotiable. And book the Home Energy Assessment early, since completing its recommendations is what protects your whole-home claim.
Program terms change. Confirm current rules with Mass Save before you buy equipment.
Fast, honest help for Brockton-area mini-split installation and repair.
