Mass Save Heat Pump Rebate
For 2026, the Mass Save heat pump rebate offers as much as $8,500 toward an air source heat pump and as much as $13,500 toward a ground source one. If your household falls into the moderate-income range, the caps rise to $16,000 for air source and $25,000 for ground source. Your equipment has to go in during 2026, and Mass Save must receive your finished paperwork no later than February 28, 2027.
Check what your address gets in Massachusetts
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Who sends your electric bill?
What are you putting in?
- Heat pump rebate (any income)
- Up to $8,500 $2,650 per ton up to $8,500
- If your income qualifies
- Up to $16,000 Up to $16,000 or up to no cost through Turnkey Services
- Heat pump water heater
- $1,500 $1,500 per system
- Federal 25C tax credit
- Ended No credit for heat pumps installed after 31 December 2025
Apply and check the current rules on the official page: Mass Save Air Source and Ground Source Heat Pump Rebates
Rebate Amounts by System Type
Air source rebates are usually calculated per ton. A ton describes the cooling a heat pump can produce, and one ton equals 12,000 BTUs. The size of the system appears on the quote your installer gives you.
| What you install | Rebate | Who | Conditions |
|---|---|---|---|
| Whole-Home air source heat pump | $2,650 per ton up to $8,500 | Any income | Sole heating/cooling source; home sufficiently weatherized and Whole-home Verification Form signed; replaces oil, propane, electric resistance (electric sponsor) or natural gas (gas sponsor); installed Jan 1-Dec 31, 2026; one per account |
| Partial-Home air source heat pump | $1,125 per ton up to $8,500 | Any income | Existing boiler/furnace kept as backup with an integrated control from the Mass Save QPL; $500 weatherization bonus and $500 sizing bonus available |
| Whole-Home ground source heat pump | $13,500 per home | Any income | Sole source of heating and cooling; ENERGY STAR; decreases to $12,000 per home for installs on or after Jan 1, 2027 |
| Partial-Home ground source heat pump | $2,000 per ton, up to $13,500 | Any income | |
| Enhanced (income-based) air source heat pump, whole- or partial-home | Up to $16,000 or up to no cost through Turnkey Services | Income-qualified | Income verified in the Enhanced Incentive range; pre-existing fuel oil, propane or electric; weatherization recommendations completed |
| Enhanced (income-based) ground source heat pump | Up to $25,000 | Income-qualified | Limit one rebate per customer account, maximum of $25,000 |
| Heat Pump Water Heater (incl. 120V/15A) | $750 per unit | Any income | ENERGY STAR certified (UEF 3.30; 2.20 for 120V); replaces electric, propane, gas or oil water heater; 1-4 unit home; licensed plumber |
| Split-System Heat Pump Water Heater | $1,500 per system | Any income | ENERGY STAR certified UEF 2.20 |
According to the Mass Save program data, a whole-home air source install averaged roughly $22,000 in 2022. A whole-home ground source installation averaged roughly $44,000. No rebate can exceed the installation price you actually paid. It cannot be stacked with another Mass Save incentive on the same equipment either.
Partial-home projects qualify for two additional $500 payments: one for weatherization and one for correct system sizing. The basic rate handles situations such as swapping out an existing heat pump or central air, a newly built addition, or a summer house.
About Mass Save
The program is a joint effort by Massachusetts's major gas and electric utilities to help residents cut their energy use. Its sponsors are National Grid, Eversource, Cape Light Compact, and Unitil, plus Berkshire Gas and Liberty. Heat pump rebates are open for 2026.
Which utility account you use depends on what heats your home now:
- Homes heated with oil, propane, or electricity: use your residential electric account. Your power company must be Eversource, National Grid, Unitil, or Cape Light Compact.
- Homes heated with natural gas: use your residential gas account. Your gas provider must be Liberty, Berkshire Gas, Eversource, National Grid, or Unitil.
If a town-owned municipal light plant supplies your power, Mass Save heat pump rebates will not apply to you. Whole-home and partial-home payments also require that someone occupy the home as their main residence throughout the winter months when heating is needed.
Extra Help Based on Household Income
Bigger payments are available when your household income sits within certain ranges. For a four-person household, here are the limits:
| Yearly income (family of four) | Payment you can receive |
|---|---|
| $103,049 or less | No-cost heat pumps and weatherization via the Income Eligible Program |
| From $103,050 up to $137,399 | As much as $16,000 for air source or $25,000 for ground source, or a turnkey service that may cost you nothing |
For households in this middle band, the enhanced offers can additionally cover the full price of an electrical panel upgrade a heat pump calls for. To claim the enhanced air source rebate, you need verified income, your previous fuel must have been oil, propane, or electricity, and you must finish all recommended weatherization work.
Picking a Heat Pump That Qualifies
Your equipment must carry the ENERGY STAR Cold Climate label and appear on the Qualified Products List maintained by Mass Save, its own roster of heat pump models approved for rebates. A contractor belonging to the Mass Save Heat Pump Installer Network has to perform the work, or the project will not qualify.
Keeping your boiler or furnace as backup also requires an integrated control picked from the list Mass Save approves. This device manages the switch between the heat pump and the backup system.
To earn the whole-home rebate, your house needs to be weatherized, insulated and sealed well enough to hold heat in. Your home counts as weatherized if any of the following applies:
- Its construction year was 2000 or later.
- A Home Energy Assessment uncovered under $1,000 of recommended weatherization work.
- The recommended weatherization work is done.
A Whole-Home Verification Form also needs your signature. The Home Energy Assessment costs nothing, whether it happens at your house or over a video call. On approved jobs, insulation runs 75% to 100% cheaper, and air sealing for targeted spots comes free.
Steps and Deadlines for the 2026 Rebate
Follow the sequence Mass Save prescribes, so each requirement is met before the next stage begins.
- Check your eligibility. A voluntary pre-verification form online can confirm this ahead of time.
- Confirm the home is weatherized, a must for the whole-home rebate. This may already be true, for example if it was built in 2000 or later.
- Ask for a few proposals, two or three, from Mass Save Heat Pump Installer Network contractors, letting you weigh prices and system sizes.
- Buy and put in equipment listed on the Qualified Products List. Partial-home projects also need an integrated control.
- File the rebate form online or by mail along with the required documents. Either you or the installer can submit it.
- Should your home be picked for a random verification inspection, arrange a visit.
Most of the rebates described here are paid through the installer or hinge on the installer's forms, which makes the quote the place where payment gets settled.
Starting October 1, 2026, every application must come with pictures of the nameplate carrying the serial number on each unit. Snapping those photos during installation day spares you a return trip. Anything installed during 2026 requires the form and documents to reach Mass Save before the deadline of February 28, 2027.
Is There a 0% Loan from Mass Save?
Yes. Through the Mass Save HEAT Loan, you can borrow between $500 and $25,000 interest-free, meaning you repay only the amount you took out. It can handle the share of a heat pump project the rebate leaves uncovered.
Terms of the Zero-Interest Loan
Repayment stretches across as many as seven years, and the money comes through participating lenders rather than straight from Mass Save. Beyond heat pumps, the loan also applies to heat pump water heaters, weatherization work, windows, and batteries. Before you can finance a whole-home heat pump, you must complete a Home Energy Assessment.
Questions People Often Ask
Do the rebates continue once 2026 ends?
You can claim these rebates for all of 2026, but the amounts shrink for equipment installed once 2027 begins.
| Type of system | Installed in 2026 | Installed in 2027 |
|---|---|---|
| Whole-home air source | $2,650 for each ton, capped at $8,500 | $2,350 for each ton, capped at $7,500 |
| Partial-home air source | $1,125 for each ton, capped at $8,500 | $1,000 for each ton, capped at $7,500 |
| Whole-home ground source heat pump | $13,500 | $12,000 |
Does Mass Save pay a rebate on heat pump water heaters?
Yes. A heat pump water heater pays $750 per unit, while a split-system model brings $1,500. The installation must be handled by a licensed plumber. The cash can reach you instantly via your plumber's distributor, a code you can use in-store at Home Depot or Lowe's, or the Mass Save online marketplace. Each gas or electric account is limited to one rebate.
Is Massachusetts adding more heat pump rebates?
The state intends to fold federal Home Energy Rebates funding into the Mass Save income-based programs. Per the Mass Save FAQ, the sponsors continue seeking approval of $71.8 million; no separate application will be needed.
Is a federal tax credit still available for heat pumps?
Not for anything installed in 2026. Under a federal law signed July 4, 2025, the home energy credit has ended for equipment that goes into service after December 31, 2025.
Compare Quotes From Participating Massachusetts Installers
Most rebates on this page are paid through the installer or need the installer's paperwork, so the quote is where the money is settled. Tell us the ZIP code and what you want installed, and installers who work with these programs send a written price with the rebates taken off.
Related pages
Every heat pump rebate in Massachusetts
The other utility and state programs in Massachusetts, side by side.
Mass Save Home Energy Assessment
The no-cost visit that comes before the insulation rebates and the 0% HEAT Loan.
Heat pump cost after rebates
Typical installed prices with the largest rebate taken off.