Geothermal Heat Pump Tax Credits

In December 2020, the tax credit for geothermal heat pump installations was extended through 2023. Geothermal equipment that meets ENERGY STAR requirements, and that uses stored solar energy from the ground for heating and cooling purposes IS eligible for the tax credit. 

US Tax Credit Through 2023

The energy tax credit can be combined with solar and wind credits as well as energy efficiency upgrade credits. From now through December 31, 2022 a federal tax credit for residential ground source heat pump installations has been extended. For the year 2023, the incentive will be lowered to 22% for systems that are installed, so act quickly to save more!

26% Tax Credit through 2022

22% Tax Credit through 2023


The Energy Credit: Learn More 

Property is usually considered to be placed in service when installation is complete and equipment is ready for use. However, if the system is part of the construction or renovation of a house, it’s considered placed in service when the taxpayer takes residence in the house. To save the most on your installation, you’ll want to act quickly.

  • 26% of total system cost in 2021 and 2022
  • 22% of total system cost in 2023
  • No limit to credit amount
  • Can be used to offset alternative minimum tax (AMT)
  • Can be used for more than one year
  • Can be combined with solar and wind tax credits
  • Can be combined with energy upgrade credits


What’s eligible?

Geothermal equipment that uses stored energy from the ground for heating and cooling AND that meets ENERGY STAR requirements at the time of installation is eligible for the tax credit. Covered expenditures include labor for onsite preparation, assembly, or original system installation and for piping or wiring to connect a system to the home.

What’s Not

The credit can’t be claimed for spending on equipment used solely for hot tub or pool conditioning, nor on previously used equipment. Rental home installations also cannot be claimed. As of November 2013, electric strip heat and ductwork distribution systems are no longer included in the tax circulation.

How to Claim the Credit

Use IRS Form 5695 to claim the Residential Energy Efficient Property Credit. For property placed in service after 2009, there’s no limit on the credit amount. The tax credit can be used to offset both regular income tax and alternative minimum taxes (AMT). The the federal tax credit exceeds liability, the excess amount may be carried forward into future years. Spending on geothermal heat pump property adds to your home’s cost basis but also must be reduced by the amount of the tax credit received.

Geothermal: The Smart Choice 

Even without incentives, installing a geo system just makes sense. It’s the only type of system that will pay you back! Most homeowners save more on monthly bills that they pay for the system when installation costs are financed. Any added investment over traditional equipment is usually recovered in just a few years, and many homeowners see a return on investment of 10-20% over the life of the system.

Check For More Local Incentives

In addition to the federal tax credit, state, local, and utility incentives may be available in your area for even more savings on installing a geothermal heat pump. Check out the Database of State Incentives for Renewable & Efficiency (DSIRE) website to find policies and incentives in your area.

GEO—the Geothermal Exchange Organization—is a non-profit 501(c)(6) trade association representing the interests of all businesses involved in the geothermal heat pump industry across the United States. GEO provides outreach to the industry, public and government about the economic, national security, and environmental benefits of geothermal heat pump systems for residential, institutional and commercial applications. For more information, visit Phone: (888) 255-4436. Email:

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