MN Sales Tax Incentive

Solar Energy Sales Tax Exemption

Administered by Department of Revenue

AI summary · 11/1/2026

Minnesota doesn't charge state sales tax on solar energy systems bought on or after August 1, 2005, including solar electric (PV), solar water heating, and solar space heating systems and all their parts like panels, wiring, pipes, pumps, and racks. To claim it, fill out Minnesota Department of Revenue Form ST3 Certificate of Exemption and give it to your seller. The exemption has no expiration date.

Sales of solar PV, solar water heating, space heating, and other solar thermal systems are exempt from Minnesota sales tax, including components such as panels, wiring, pipes, pumps, and racks, which can lower your customers' upfront cost. Have each buyer complete Department of Revenue Form ST3 Certificate of Exemption, and keep the form in your files for tax reference. The exemption applies to residential, commercial, and industrial customers and does not expire.

This is a state sales tax exemption under M.S. 297A.67, subd. 29, covering solar energy systems purchased on or after August 1, 2005, with no expiration date. It broadly covers devices that collect, convert, and store solar energy for heating, cooling, other energy-using processes, or power generation, including all system components. It is open to residential, commercial, and industrial buyers, who claim it by submitting Form ST3 Certificate of Exemption, which sellers must retain; it works as foregone tax revenue rather than a funded program.

Program details

Program ID
1218
Last updated
1/12/2026

Eligibility

Sectors
commercial industrial residential
Technologies
solar water heat solar space heat solar thermal electric solar thermal process heat solar photovoltaics solar pool heating

Program summary

In Minnesota, solar-energy systems purchased on or after August 1, 2005, are exempt from the state's sales tax. Solar energy systems are defined as:

"a set of devices whose primary purpose is to collect solar energy and convert and store it for useful purposes including heating and cooling buildings or other energy-using processes, or to produce generated power by means of any combination of collecting, transferring, or converting solar-generated energy." M.S. 297A.67, subd. 29.

Thus the exemption is very broad and could apply to solar Photovoltaic (PV) systems, solar water-heating systems and solar space-heating systems. All components of these systems are exempt, including panels, wiring, pipes, pumps and racks. Buyers must complete Minnesota Department of Revenue Form ST3 "Certificate of Exemption" in order to claim the exemption. Sellers are required to keep the form in their files for tax reference. This incentive has no expiration date.

Contact & resources

Please verify current program details with the administering agency before making any financial decisions.

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