Mass Save Heat Pump Rebates 2026: Amounts, Requirements and the 2027 Change
Figures checked on masssave.com on November 10, 2026.
Short answer: in 2026, Mass Save pays up to $8,500 for a whole-home air-source heat pump ($2,650 per ton), up to $16,000 or a no-cost installation for income-qualified homes, and 0% financing up to $25,000 through the HEAT Loan. Rebates drop on January 1, 2027, so systems installed by December 31, 2026 get the current amounts.
2026 Mass Save air-source heat pump rebates
| Rebate | 2026 amount | Who it is for |
|---|---|---|
| Whole-Home | $2,650 per ton, up to $8,500 | Heat pumps become the only heating and cooling system |
| Partial-Home | $1,125 per ton, up to $8,500 | You keep your boiler or furnace as backup |
| Basic | $250 per ton, up to $2,500 | Not replacing oil, propane, gas or electric resistance heat (for example, replacing central AC) |
| Income-based enhanced | Up to $16,000, or up to no cost through Turnkey Services | Income-qualified homes heating with oil, propane or electric resistance |
Tons are based on the equipment’s AHRI cooling capacity divided by 12,000 BTU. Partial-home projects can add a $500 weatherization bonus and a $500 sizing bonus.
What changes on January 1, 2027
Mass Save has announced lower rebates for projects installed on or after January 1, 2027:
- Whole-Home: $2,350 per ton, capped at $7,500 (down from $8,500).
- Partial-Home: $1,000 per ton, capped at $7,500.
What counts is the installation date, so if you are already planning a heat pump, there is a real reason to install before the end of 2026.
Requirements for the whole-home rebate
- Heat pumps as the sole heating and cooling source. The old system is removed or disconnected; a signed Whole-Home Heat Pump Verification Form is required.
- A sufficiently weatherized home. Your home qualifies if it was built in 2000 or later, if a Mass Save Home Energy Assessment recommends less than $1,000 of weatherization, or if recommendations from 2013 or later were completed.
- Qualified equipment from the Mass Save Heat Pump Qualified Products List.
- A Heat Pump Installer Network contractor. Nexis Power is a Mass Save HPIN installer.
Income-based enhanced rebates also require income verification, and all weatherization recommended in the Home Energy Assessment must be completed first. That weatherization is free for income-verified customers.
Deadlines for 2026 rebates
- Equipment installed between January 1 and December 31, 2026.
- Rebate paperwork submitted by February 28, 2027.
- Since October 1, 2026, equipment serial numbers are required on every application.
The 0% HEAT Loan
The Mass Save HEAT Loan finances qualifying heat pumps and weatherization at 0% interest, up to $25,000 combined across your projects. Apply before installation, and use a Heat Pump Installer Network contractor. More on our Mass Save rebates and HEAT Loan page.
Example: a 3-ton whole-home system
3 tons x $2,650 = $7,950 rebate in 2026. The same system installed in January 2027 would get 3 x $2,350 = $7,050. A 4-ton system reaches the cap: $8,500 in 2026, or $7,500 in 2027.
Estimate your own with our Mass Save heat pump rebate calculator, and see what the whole project costs in heat pump installation cost in Massachusetts.
How Nexis handles it
We size the system with a room-by-room load calculation, pick qualified equipment, install it, and file the rebate and HEAT Loan paperwork for you. Book a free assessment to see your rebate before you commit.
Sources
- Mass Save, Air Source Heat Pumps (2026 rebates and 2027 changes): masssave.com/residential/rebates-offers-services/heating-and-cooling/heat-pumps/air-source-heat-pumps
- Mass Save, 0% Interest Financing (HEAT Loan): masssave.com/residential/rebates-offers-services/financing
- Mass Save, Enhanced Heat Pump Rebates: masssave.com