Idaho Residential Alternative Energy Tax Deduction

Idaho State Tax Commission

Available Solar & Renewable

About This Program

Idaho Residential Alternative Energy Tax Deduction is available to homeowners in Twin Falls, ID.

Idaho income tax deduction for 40% of costs (up to $5,000 per year, $20,000 total over 4 years) for installing qualifying alternative energy devices including solar, wind, and geothermal systems. Can be combined with federal tax credits.

State tax deduction value based on typical solar installation and maximum annual deduction

Official source site checked live on 2026-06-22.

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

In Twin Falls, ID, you can combine this program with other local help to cut your cost:

Key Details

  • 40% deduction for renewable energy systems
  • Up to $5,000 per year for 4 years
  • Covers solar, wind, geothermal installations
  • Can combine with 30% federal tax credit
  • Available to all Idaho homeowners

How to Apply

Get free help applying Visit Official Program Page Track this program

(208) 334-7660

A grant-savvy contractor in Twin Falls, ID 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 Twin Falls 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 Idaho tax return

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

Email us about this program

Frequently asked questions

How much can Idaho Residential Alternative Energy Tax Deduction provide in Twin Falls, ID?

Up to $20,000 deduction over 4 years.

Who qualifies for Idaho Residential Alternative Energy Tax Deduction in Twin Falls?

Idaho Residential Alternative Energy Tax Deduction is open to homeowners in Twin Falls, ID. It has no income limit.

How do I apply for Idaho Residential Alternative Energy Tax Deduction in Twin Falls, ID?

Apply directly with Idaho State Tax Commission using the official program link on this page or call (208) 334-7660. There is no middleman and no fee.

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse Twin Falls, ID contractors

Find More Programs in Twin Falls, ID

This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.

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