The Short Version
The federal Energy Efficient Home Improvement Credit does not apply to windows placed in service in 2026. The IRS says the credit was available for qualifying improvements made through December 31, 2025.
If qualifying windows were installed in 2025, you may still be able to claim the credit on the applicable 2025 federal return. For a 2026 installation, do not build your budget around the former 30% federal credit.
What Changed
Why Older Articles Say the Credit Runs Through 2032
The Inflation Reduction Act originally extended Section 25C. Later federal legislation ended the credit early for property placed in service after December 31, 2025. Articles and contractor pages that still advertise a 2026 window credit may be relying on the older schedule.
The installation date matters. Purchasing windows in 2025 for installation in 2026 does not make the 2026 project eligible under the expired federal credit.
2025 Projects
What If My Windows Were Installed in 2025?
For qualifying exterior windows placed in service in 2025, the prior rules generally allowed 30% of eligible product cost up to the windows-specific annual limit of $600. Eligibility depended on the home, product certification, installation date, and documentation.
Keep:
- Your itemized invoice
- Proof of the date the windows were placed in service
- Manufacturer and product documentation
- Any Qualified Manufacturer Identification Number required for the 2025 tax year
Use the IRS instructions for the applicable tax year and consult a tax professional when needed. Allwin does not provide tax advice.
Other Savings
Are Other Window Incentives Available in Houston?
Utility, manufacturer, or local incentive programs can change during the year. Check the current program terms directly rather than assuming an offer applies. A rebate may have product, contractor, date, funding, or preapproval requirements.
Even without a federal credit, window performance still matters. Compare the full installed price, Low-E glass package, U-factor, solar heat gain coefficient, warranty coverage, and expected comfort improvement for your home.
Allwin provides an itemized written quote and product-performance documentation so you can compare options clearly.
Frequently Asked Questions
Q.Is there a federal tax credit for replacement windows installed in 2026?
No. Current IRS guidance says the Energy Efficient Home Improvement Credit applied to qualifying improvements made through December 31, 2025.
Q.Can I claim the credit if I bought windows in 2025 but installed them in 2026?
Generally, the relevant date is when the qualifying property was placed in service. A 2026 installation is outside the period listed in current IRS guidance. Confirm your facts with a tax professional.
Q.Can I still claim qualifying windows installed in 2025?
You may be able to claim a qualifying 2025 installation on the applicable 2025 return, subject to the 2025 rules and documentation requirements.
Q.Does ENERGY STAR certification automatically create a tax credit?
No. ENERGY STAR performance and federal tax eligibility are separate questions. An efficient window can be a good fit for Houston even when no federal credit is available.
Q.Where should I verify the current rule?
Use the IRS Energy Efficient Home Improvement Credit page and the tax-year-specific Form 5695 instructions. For advice about your return, consult a qualified tax professional.
Q.Are utility or manufacturer rebates still possible?
Possibly. Those programs change independently, so verify current availability, product requirements, dates, and funding directly with the program provider before relying on them.
