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Step by step

Mass Save heat pump rebate: steps and dates

Install by December 31, 2026 for $2,650 per ton. Forms are due February 28, 2027. Here is the order to do everything in.

  • Checked: November 2026

Start with photos

A heat pump outdoor unit on a pad with a copper line set and a disconnect box
  1. 1NowGet proposalsTwo or three installers in the Mass Save network. Ask each for a firm install date.
  2. 2By Dec 31, 2026Heat pump installedThe install date sets the rate. $2,650 per ton, up to $8,500 (whole-home).
  3. 3Jan 1, 2027New rate startsInstalls on or after this date: $2,350 per ton, up to $7,500 (whole-home).
  4. 4By Feb 28, 2027Rebate form inForm and paperwork for 2026 installs must reach Mass Save. Allow about eight weeks.

The six steps

  1. Find your utility. Your electric bill names it. Eversource, National Grid, Unitil or Cape Light Compact is a Mass Save electric sponsor. A town light plant is not: use the light plant guide. Replacing natural gas? The gas sponsor and your gas account count instead.
  2. Check the weatherization rule (whole-home). You pass if the home was built in 2000 or later, or a Home Energy Assessment recommends under $1,000 of weatherization, or recommendations made in 2013 or later have been completed. Fail it and a partial-home rebate may still apply. Five-plus unit buildings are exempt.
  3. Get two or three proposals. Mass Save recommends 2 to 3. The installer must be in the Mass Save Heat Pump Installer Network, so check the name on Mass Save's list. Ask each one for the heating-load calculation and a written install date.
  4. Pre-verify (optional). Mass Save's online portal lets you complete a pre-verification form to check the project is eligible before you buy.
  5. Install. Equipment must meet ENERGY STAR cold climate and be on Mass Save's qualified products list. Partial-home projects that keep oil, propane or gas in a zone need a Mass Save qualified integrated control. The install date sets the rate: $2,650 per ton through December 31, then $2,350 per ton.
  6. Submit and wait. Send the rebate form and documentation online or by mail so it arrives by February 28, 2027. Mass Save asks for about eight weeks. If you are picked for an inspection, schedule it or the rebate stalls.

Edge cases

  • Summer home or an addition. Not replacing fossil or electric resistance heat? You are in basic-rebate territory: $250 per ton, up to $2,500 in 2026. Heat pumps in an addition can add the basic rebate to a whole-home or partial-home rebate, capped at $8,500 per account in total.
  • Existing heat pump. Replacing a heat pump with a heat pump is not eligible for partial or whole-home. Basic may apply.
  • Renting. Rebates run through an account. Call Mass Save on 1-888-855-0340 before you start.
  • Municipal gas. Mass Save says customers using municipal gas for heating are ineligible for basic heat pump rebates unless a Mass Save sponsor serves them for electricity.
  • Slipping into January. A project that finishes on or after January 1, 2027 falls under the 2027 rate. Ask for a firm install date and a plan B in writing.

Where we fit

You choose the system and sign the quote with Aurion. We handle the quote, contract and payment, and licensed Massachusetts technicians do the licensed work. We help with rebate paperwork. Mass Save sets the amounts and decides eligibility. Need a panel upgrade first? See panel upgrades and the Boston electrical permit guide.

Common questions

What is the last day to install a heat pump for the 2026 Mass Save rebate?

December 31, 2026. Mass Save says equipment must be installed between January 1, 2026 and December 31, 2026. The rebate form and supporting documents must reach Mass Save by February 28, 2027.

How do I apply for the Mass Save heat pump rebate?

Submit the rebate form online through Mass Save's application portal, or print and mail it, with the supporting documentation. You can pre-verify the project through the portal first. Whole-home projects also need the signed Whole-Home Heat Pump Verification Form.

Do I need a Home Energy Assessment?

For a whole-home rebate, only if your home does not already pass the weatherization test: built in 2000 or later, or an assessment recommending less than $1,000 of work, or recommendations from 2013 or later completed. Otherwise the assessment is how you show the second or third.

Will my project be inspected?

Some projects are chosen at random. Mass Save emails you, and you have to schedule the inspection for the rebate to be processed.

Can a renter or a landlord apply?

The rebate is applied for through a residential electric or gas account. If the account holder is not the owner, call Mass Save at 1-888-855-0340 before you start. Multi-family buildings of five or more units do not need the weatherization step.

What if my home already has a heat pump?

Mass Save says installations that replace existing heat pumps with new heat pumps are not eligible for partial-home or whole-home rebates, but may get the basic rebate. Talk to Mass Save or your installer before you start.

Is there an instant discount at the contractor?

Possibly. Mass Save notes that instant incentives may be available through distributors and contractors at the point of sale through the New England Heat Pump Accelerator, a state-led initiative that Mass Save does not administer. Ask your installer.

Call (781) 210-8400 or send two photos and your town.

Start before the year ends.

Send two photos and your town. We look at them and get back to you with a price. Or call (781) 210-8400.

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