Short answer: the federal Energy Efficient Home Improvement Credit (Section 25C) does not apply to equipment placed in service after December 31, 2025. It was ended early by Public Law 119-21, signed July 4, 2025. For a 2026 installation, a quote should not count on that federal credit. State, local and utility rebates are separate and may still be available.
Guide
HVAC tax credits and rebates in 2026
If a 2026 quote promises a federal tax credit, check it. Here is what changed and where rebates may still apply.
What changed
- Federal credit
- Energy Efficient Home Improvement Credit (Section 25C) Source verified November 1, 2026
- End date
- Not allowed for property placed in service after December 31, 2025 Source verified November 1, 2026
- Law
- Public Law 119-21, signed July 4, 2025 Source verified November 1, 2026
- Claim form for earlier installs
- Form 5695, for equipment placed in service by the end of 2025 Source verified November 1, 2026
What this means for your quote
The date that matters is when the equipment is placed in service, which generally means installed and ready to use, not when you sign. If a quote for a 2026 installation lists a federal tax credit as a saving, ask the contractor which credit they mean and where its terms are published, and check with a tax professional before relying on it.
Our checker flags a federal tax credit promised for a 2026 or later install as a high-priority question.
State, local and utility rebates
Rebates from states, cities and utilities are separate from the federal tax credit and change often. They usually have their own equipment requirements, application steps and deadlines, and some must be reserved before installation. Ask the contractor to write any promised rebate into the quote, including who applies, the amount and when it is paid.
Your utility's website and your state energy office are the best places to confirm what is currently offered.
Questions about this guide
My system was installed in 2025. Can I still claim 25C?
Equipment placed in service by December 31, 2025 may be claimed on the 2025 return using Form 5695, subject to the credit's rules. Check with a tax professional.
Are utility rebates affected by the federal change?
Utility and state rebates are separate programs. Check each program's current terms directly.
Sources
- IRS, Energy Efficient Home Improvement Credit verified November 1, 2026
- IRS, FAQs on changes to sections 25C and 25D under Public Law 119-21 verified November 1, 2026
- IRS, Instructions for Form 5695 verified November 1, 2026
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