Energy Efficient Home Improvement Credit (25C)

IRS / U.S. Federal Government

Closed Home Repair

About This Program

Note: Congress ended this federal tax credit for installations after December 31, 2025. Projects placed in service by that date can still be claimed on your 2025 federal return (IRS Form 5695).

The 25C Energy Efficient Home Improvement Credit provides up to $3,200 per year (30% of costs) for qualifying energy efficiency upgrades. Breakdown: up to $2,000 for qualified heat pumps, biomass stoves, or heat pump water heaters; up to $1,200 for insulation, air sealing, windows, exterior doors, and energy audits ($150 max for audits). Annual limit, can claim each year for different qualifying improvements. Note: Verify current availability after the One Big Beautiful Bill as the credit was scheduled for installations completed by December 31, 2025 but recent legislation may affect 2026+ claims.

Annual credit limit resets each year. Claim on IRS Form 5695. 30% of cost up to per-category caps. Verify 2026 credit availability after recent tax legislation.

Verified against IRS / U.S. Federal Government's official page on 2026-06-17.

Data last verified 2026-04-03. How we verify our data.

This is a national program. In Phoenix, AZ, you can stack it with local programs like these:

Key Details

  • Up to $3,200/year in federal tax credits for energy efficiency upgrades
  • Up to $2,000 for heat pumps, biomass stoves, or heat pump water heaters
  • Up to $1,200 for insulation, windows, exterior doors, energy audits
  • Annual limit resets, claim each year for new qualifying improvements
  • Claim on IRS Form 5695; verify 2026 availability after recent tax legislation

How to Apply

Get free help applying Visit Official Program Page Track this program

A grant-savvy contractor in Phoenix, AZ 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 Phoenix 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: Ended December 31, 2025 (federal law change)

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