Massachusetts Rebate Calculator 2026: What Mass Save Pays for Your Home
Answer a few questions and see which Massachusetts rebates fit your home, with a source for every number.
Short answer: Mass Save pays up to $8,500 for a whole-home air-source heat pump ($2,650 per ton), $750 for a heat pump water heater and 75% to 100% off insulation after a free home energy assessment. Households that qualify for the income-based Enhanced offer can get the heat pump at no cost or up to $16,000 back. Homes in a town with its own municipal electric company use different programs.
Planning solar? Try our free Solar Roof Check: type your address to see how many panels fit your roof and which verified solar rebates apply.
How we work it out
- Every amount comes from the program's own page, linked on each result.
- We count only programs that are open today. Programs that start later or have a waitlist are listed but not added.
- Your answers stay in your browser. We only get your email if you ask us to notify you.
- Nobody pays to be included, and installers cannot change what you see.
Every Massachusetts program in this calculator
| Program | Amount | Rules |
|---|---|---|
| Mass Save: whole-home air-source heat pump | $2,650 per ton | Replaces oil, propane or electric baseboards, or gas from a Mass Save gas sponsor. ENERGY STAR cold-climate model, installed in 2026 by a Heat Pump Installer Network contractor. Needs enough weatherization. Apply by February 28, 2027. Source (active, verified 2026-10-10) |
| Mass Save: partial-home air-source heat pump | $1,125 per ton | Same equipment and installer rules. Adds a $500 weatherization bonus and a $500 sizing bonus. Integrated controls required. Source (active, verified 2026-10-10) |
| Mass Save Enhanced: whole-home heat pump | No cost, or up to $16,000 | Only for households that qualify for the income-based Enhanced offer. Not the standard amount. Source (active, verified 2026-10-03) |
| Mass Save: whole-home geothermal heat pump | Up to $13,500 | Same eligibility rules as the air-source offer. Source (active, verified 2026-09-26) |
| Mass Save: partial-home geothermal heat pump | $2,000 per ton | Same eligibility rules as the air-source offer. Source (active, verified 2026-09-26) |
| Mass Save Enhanced: geothermal heat pump | Up to $25,000 | Only for households that qualify for the income-based Enhanced offer. Source (active, verified 2026-09-26) |
| Mass Save: heat pump water heater | Up to $750 | An instant rebate when you replace an existing electric, oil, propane or gas water heater. The rebate never exceeds the cost. Source (active, verified 2026-09-26) |
| Mass Save: insulation and air sealing | 75% to 100% off | Start with the free home energy assessment. 100% off is generally for income-qualified households, 75% is standard. Also $75 per window replaced with a triple-pane window. Source (active, verified 2026-10-03) |
| Massachusetts solar tax credit | Up to $1,000 | 15% of the system cost, capped at $1,000, claimed on your state tax return. Source (active, verified 2026-09-26) |
| SMART solar program | Paid per kWh over time | MassCEC's example is about $300 a year for an 8 kW system. It is paid over time, so it is not added to your total. Only for National Grid, Eversource and Unitil customers. Source (active, verified 2026-09-26) |
| ConnectedSolutions battery program | About $1,375 a year | MassCEC's example for a 5 kW battery. It is paid for letting the utility use the battery in peak events, so it is not added to your total. Source (active, verified 2026-10-03) |
| Mass Save: appliance rebates | $50 or $500 | $50 for an ENERGY STAR clothes dryer. $500 for an induction cooktop when you switch from gas or propane. Source (active, verified 2026-09-26) |
| Mass Save: free home energy assessment | Free | A free virtual or in-person assessment. Income-qualified homes can get insulation, air sealing and heat pumps at no cost. Call 866-527-7283. Source (active, verified 2026-09-26) |
| Mass Save HEAT Loan | 0% loan up to $25,000 | For heat pumps, insulation, heat pump water heaters and more. Terms up to 7 years. Source (active, verified 2026-10-03) |
| Energy Saver Home Loan | Up to $100,000 at up to 2% | A low-interest loan for income-qualified households, up to 20 years. Source (active, verified 2026-10-03) |
| DOER MLP Z-Loan | 0% loan, $500 to $25,000 | For customers of a municipal light plant who are not eligible for Mass Save. Up to 5 years. Solar and EV chargers are excluded. Apply at myz-loan.com. Source (active, verified 2026-09-26) |
Common questions
How much is the Mass Save heat pump rebate in 2026?
Up to $8,500 for a whole-home air-source system, paid at $2,650 per ton. A partial-home system pays $1,125 per ton, up to $8,500. Households that qualify for Enhanced rebates can get the system at no cost or up to $16,000 back. Installs must be done in 2026 by a Heat Pump Installer Network contractor.
Do I qualify for Mass Save if my town has a municipal electric company?
Not for the electric programs. About 50 towns are served by municipal light plants. They use their own rebates and the 0% DOER MLP Z-Loan. If you heat with gas and the gas company is a Mass Save sponsor, some gas-side offers may still apply.
Is the federal tax credit for heat pumps still available?
No. The 25C and 25D credits ended for spending after December 31, 2025.
Can I get a battery rebate in Massachusetts?
We found no upfront Mass Save battery rebate. Batteries earn money through the ConnectedSolutions program instead, about $1,375 a year for a 5 kW battery in MassCEC's example.
Next: Massachusetts rebate guide · Top-rated installers by city · Recent rebate changes
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