The Mass Save heat pump rebate drops on January 1, 2027
Whole-home systems go from $2,650 to $2,350 per ton, and the cap from $8,500 to $7,500. If you are close to deciding, the date matters.
- Checked: November 3, 2026
2026 against 2027, by system size
Mass Save pays by the ton of cooling capacity. Here is the whole-home rebate at three common sizes, worked out from the rates it lists.
| System size | 2026 install | From Jan 1, 2027 |
|---|---|---|
| 1 ton | $2,650 | $2,350 |
| 3 tons | $7,950 | $7,050 |
| 4 tons | $8,500 | $7,500 |
The cap bites at about 3.2 tons in 2026 and 3.2 tons in 2027, so a large system loses $1,000 at the top end.
Why it matters for a quote
Mass Save's own cost example uses an average whole-home installation of $22,000 (program data for installs finished in 2022). With the 2026 cap, that leaves $13,500. With the 2027 cap it leaves $14,500. Your own quote is what counts: put it in the calculator and switch the year.
What to do before the date
- Get a quote early. Everyone books up in the fall, and a site visit comes first. Send two photos and your town now.
- Check the network. Mass Save requires a contractor in its Heat Pump Installer Network.
- Check what you replace. Rebates are for oil, propane or electric resistance heat, or natural gas where a Mass Save gas sponsor serves you.
- Ask about the install date. The 2027 rate is tied to the date of installation.
Waiting is not always wrong: a project that is not ready is worse than a lower rebate. But if an oil boiler is already failing, the heat pump is the path Mass Save pays for. See heat pump or a new oil boiler. Which rebate applies in your town: rebates by town.
Common questions
Is the Mass Save heat pump rebate going down in 2027?
Yes, for whole-home projects. Mass Save lists $2,650 per ton up to $8,500 for 2026 and $2,350 per ton up to $7,500 for projects installed on or after January 1, 2027.
Which date counts, the contract or the install?
Mass Save words the 2027 rate by installation date: projects installed on or after January 1, 2027. Ask us for a realistic install date, and ask Mass Save how it treats a project that is signed in 2026 but finished later.
What about the partial-home rebate?
It also drops: $1,125 per ton up to $8,500 in 2026, then $1,000 per ton up to $7,500 in 2027.
Is the rebate certain?
No. These are the rates Mass Save lists. Mass Save decides eligibility, and the installer has to be in its Heat Pump Installer Network. Treat any figure here as an estimate.
Decide before the rate drops.
Send two photos and your town. We look at them and get back to you with a price.
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