How much is the Mass Save heat pump rebate in 2026?

The whole-home rebate is $2,650 per ton capped at $8,500, down from $3,000 per ton in 2025, plus $500 bonuses for documented correct sizing and for pairing with weatherisation. Income-qualified households can reach $16,000. The HEAT Loan carries 0% interest up to $25,000 over seven years.

Why do R-410A heat pumps no longer qualify for Mass Save?

As of January 2026 Mass Save pays a rebate only on systems using R-32 or R-454B refrigerant. R-410A equipment is excluded entirely. An installer clearing 2025 R-410A stock can quote a lower sticker price that costs thousands more once the rebate is denied. Ask which refrigerant is in the quote before you sign.

Mass Save heat pump rebates, 2026

Whole-home cap $8,500HEAT Loan 0% to $25,000R-32 and R-454B only

2026 CHANGE

Heat pumps charged with R-410A no longer qualify for any Mass Save rebate as of January 2026 — only R-32 and R-454B do. Ask which refrigerant is in the quote before you sign. The 2026 figures

Every 2026 figure

Incentive	2026 amount	Notes
Whole-home heat pump rebate	$2,650 per ton	down from $3,000/ton in 2025
Whole-home cap	$8,500	per home
Correct-sizing bonus	+$500	when the installer documents a load calculation
Weatherisation bonus	+$500	when paired with insulation or air sealing
Partial-home rebate	$1,125 per ton	capped at $8,500
Basic tier	$250 per ton	capped at $2,500
Income-qualified ceiling	up to $16,000	or no-cost via the Turnkey programme
HEAT Loan	0% to $25,000	over 7 years, no fees
R-410A equipment	EXCLUDED	since January 2026 — only R-32 and R-454B qualify

The whole-home rate fell from $3,000 per ton in 2025 to $2,650 in 2026, so the same system earns less than it would have last year — though the $8,500 cap is unchanged.

The refrigerant trap

The single most expensive mistake available to a Massachusetts homeowner in 2026 is accepting a quote for R-410A equipment. Since January it has been excluded from every Mass Save rebate — only R-32 and R-454B qualify.

Installers still holding 2025 R-410A stock have an obvious incentive to move it, and the sticker price will look competitive. It is not: losing an $8,500 rebate to save a few hundred on equipment is a five-figure swing in the wrong direction. Ask which refrigerant is in the quote, in writing, before signing.

Frequently asked

How much is the Mass Save heat pump rebate in 2026?: The whole-home rebate is $2,650 per ton capped at $8,500, down from $3,000 per ton in 2025, plus $500 bonuses for documented correct sizing and for pairing with weatherisation. Income-qualified households can reach $16,000. The HEAT Loan carries 0% interest up to $25,000 over seven years.
Why do R-410A heat pumps no longer qualify for Mass Save?: As of January 2026 Mass Save pays a rebate only on systems using R-32 or R-454B refrigerant. R-410A equipment is excluded entirely. An installer clearing 2025 R-410A stock can quote a lower sticker price that costs thousands more once the rebate is denied. Ask which refrigerant is in the quote before you sign.