Mass Save Heat Pump Rebate Calculator
Estimate your likely Mass Save rebate, federal 25C tax credit, and after-rebate cost range. Takes under 3 minutes.
How much is the Mass Save heat pump rebate in Massachusetts?
Massachusetts homeowners replacing oil or propane heat with a whole-home heat pump may qualify for Mass Save rebates ranging from roughly $2,000 to $10,000 or more, depending on system size, utility, current heating fuel, and equipment eligibility. Homes heating with natural gas typically qualify for lower tiers — generally in the $500–$3,000 range for whole-home replacement, subject to current program rules. A federal 25C tax credit of up to $2,000 can generally be stacked with Mass Save rebates. Use the calculator below to estimate the likely rebate range for your specific situation — final eligibility depends on AHRI-certified equipment and weatherization status.
Can I rely on a contractor's Mass Save rebate estimate?
A contractor's rebate estimate can be a useful starting point, but it should not be treated as final until the quote includes the specific equipment AHRI reference number, your utility's current rebate tier for that fuel type and system size, and confirmation that your home meets the weatherization requirements for the rebate path being claimed. Rebate amounts depend on program rules that change annually — a number a contractor quoted six months ago may not match the current program.
Use the quote checker to identify missing information before assuming the rebate claim is accurate.
Check your contractor quote →Where is your home?
We use this to verify Massachusetts eligibility.
Rebate tiers and program rules differ by utility. Check your electric bill if unsure.
The most important factors are your electric utility (rebate tiers differ by program sponsor), your current heating fuel (oil and propane homes typically qualify for higher tiers), whether you are replacing whole-home or partial-home heating, the system size in tons, and whether the proposed equipment has an eligible AHRI rating. Income-qualified households may access enhanced rebate tiers. Homes that need weatherization work may need to complete it before qualifying for certain rebate paths.
Massachusetts heat pump tax credit 2025: how it works alongside Mass Save
The federal 25C Energy Efficient Home Improvement Credit allows homeowners to claim 30% of the installed cost of a qualifying air-source heat pump, capped at $2,000 per tax year. This credit is separate from Mass Save rebates — both can generally be claimed on the same installation, though rebates that reduce your out-of-pocket cost may affect the amount you use as the credit basis.
The credit is non-refundable — it reduces what you owe in federal income taxes but does not generate a refund beyond your tax liability. It resets annually, so if your installation spans a tax year, equipment commissioning dates may determine which year the credit applies.
This information is for planning purposes only and is not tax advice. Eligibility depends on your individual tax situation and the specific equipment installed. Verify with a qualified tax professional before filing.
IRS 25C source ↗Does the calculator guarantee I qualify for these rebates?
No. The calculator provides estimates based on publicly available Mass Save program data. Actual eligibility depends on your specific utility, equipment model (AHRI number), home conditions, and program availability. Use this as a starting point, not a final answer.
Why does my utility matter so much?
Mass Save is administered by multiple utility companies including Eversource, National Grid, Unitil, and Cape Light Compact. Each has slightly different program structures, rebate tiers, and waiting periods. Your utility determines which rebate path you access.
What is the federal 25C tax credit and how does it stack with Mass Save?
The 25C tax credit allows homeowners to claim 30% of the installed cost of a qualifying heat pump, capped at $2,000 per year. It is separate from Mass Save rebates and can generally be stacked with them. However, rebates that reduce your out-of-pocket cost may affect the basis for the credit. Consult a tax professional.