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.
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.
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.