Who Qualifies for the Mass Save Heat Pump Rebate? 2026 Eligibility Explained for Boston Homeowners

Who qualifies for the Mass Save heat pump rebate?

You generally qualify for the Mass Save heat pump rebate if you are a residential customer of a participating Massachusetts utility — such as Eversource, National Grid, Unitil, Cape Light Compact, Berkshire Gas, or Liberty Utilities — and you complete the required steps: a no-cost Mass Save Home Energy Assessment, installation of qualifying equipment, and use of an approved installer. In other words, eligibility is less about who you are and more about following the program's process correctly.

For Greater Boston homeowners, the practical starting point is your utility bill. If you receive gas or electric service from a sponsoring utility, you're almost certainly in the eligible pool — the assessment then confirms the specifics for your home.

What are the income requirements for the rebate?

There are no income requirements to qualify for the standard Mass Save heat pump rebate — every eligible residential customer can access the base incentive. However, income determines how large your rebate can be. In 2026, standard rebates reach up to $8,500 for a whole-home air-source heat pump, while income-qualified households (those below certain thresholds) can receive significantly more — often $10,000 or more, with the highest incentives reserved for the lowest-income households.

If you think your household may fall into an income-qualified tier, it's worth flagging during your assessment, because the difference in rebate value can be thousands of dollars.

What equipment qualifies for the rebate?

To qualify, your heat pump must appear on the Mass Save Heat Pump Qualified Product List and meet current efficiency and refrigerant standards. As of 2026, this means the system must be ENERGY STAR Cold Climate certified and use a next-generation refrigerant such as R-32 or R-454B — systems using the older R-410A refrigerant are no longer eligible for rebates. This matters because Boston's winters demand equipment rated for genuine cold-weather performance, not just any heat pump.

The rebate amount also depends on whether the system heats your whole home or only part of it. Whole-home systems — where the heat pump is the primary heating source — earn the top rebate (up to $8,500, calculated at $2,650 per ton). Partial-home installations, where the heat pump supplements existing heating, earn a smaller per-ton incentive.

Do you need a specific contractor?

Yes — to qualify for the heat pump rebate, your system must be installed by a contractor in the Mass Save Heat Pump Installer Network (HPIN). This isn't optional: an installation by a non-network contractor, even a fully licensed one, will not qualify for the rebate. HPIN membership signals that the installer is trained on the program's requirements, proper sizing, and the documentation needed to secure your incentive.

This is one of the most common places Boston homeowners get tripped up — hiring a good contractor who simply isn't in the network, and losing the rebate as a result. Boston Climate Co. connects Greater Boston homeowners specifically with licensed, HPIN-enrolled specialists so the rebate stays intact from the start.

What is the first step to claim the rebate?

The first and non-negotiable step is scheduling a no-cost Mass Save Home Energy Assessment. This assessment produces the recommendations that make your project eligible, and starting work before completing it can disqualify you from the rebate entirely. After the assessment, you get a proposal from an HPIN installer, the work is completed with qualifying equipment, and the rebate is processed through the program.

The sequence matters more than almost anything else: assessment first, then approved installer, then qualifying equipment, then rebate. Get the order wrong and you can forfeit thousands of dollars. For a full picture of the rebate amounts, see our guide to Mass Save heat pump rebates in Boston, and to finance the balance, our guide to the 0% Mass Save HEAT Loan.

Eligibility, income-tier, and rebate figures are current as of the date shown and are subject to change. Program terms, amounts, and eligibility are set by Mass Save and other third parties and can change at any time — verify current details directly with the official program at masssave.com before making decisions. This content is general information, not professional, financial, or tax advice.