Montana Residential Alternative Energy Tax Credit

Montana Department of Revenue

Closed Solar & Renewable

About This Program

Montana state income tax credit for residential alternative energy systems including solar, wind, and geothermal installations. Credit equals the lesser of $500 or the actual cost of the system.

Tax credit of up to $500 for qualifying renewable energy system installation

Data last verified 2026-06-09. How we verify our data.

Key Details

  • State tax credit up to $500
  • For solar, wind, and geothermal systems
  • Applies to residential installations
  • Claim on Montana state tax return
  • Can combine with federal solar tax credit

How to Apply

Get free help applying Visit Official Program Page Track this program

(866) 859-2254

A grant-savvy contractor in Whitefish, MT can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Whitefish early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Your federal tax return for the year of the work (this benefit is claimed on your taxes, not through a separate application).
  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • A recent utility bill for the home (energy and weatherization programs use it to confirm service and usage).
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Claim on annual state tax return

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