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.
| 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 2026-09-26) |
| 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 2026-09-26) |
| 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 2026-09-26) |
| 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 2026-09-26) |
| 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 2026-09-26) |
| 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 2026-09-26) |
| 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 2026-09-26) |
| 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) |
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.
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.
No. The 25C and 25D credits ended for spending after December 31, 2025.
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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