Residential Clean Energy Credit Guide – The Residential Clean Energy Credit (also known as Section 25D) offers a powerful federal tax incentive for U.S. homeowners who installed qualified clean energy systems like solar panels, geothermal heat pumps, or battery storage. While the credit has expired for new installations after December 31, 2025, millions of Americans who acted before the deadline can still claim it on their 2025 tax returns or carry forward unused amounts.
This comprehensive guide breaks down eligibility, qualifying expenses, claim steps, and current 2026 rules based on the latest IRS guidance. Whether you installed solar in 2025 or have a carryforward from prior years, here’s how to maximize your savings.
What Is the Residential Clean Energy Credit?
The Residential Clean Energy Credit is a nonrefundable federal income tax credit equal to 30% of the qualified costs of new clean energy property installed in your U.S. home. It was significantly expanded and extended by the Inflation Reduction Act of 2022, allowing the full 30% rate with no annual or lifetime dollar cap (except for fuel cells) for installations from 2022 through 2025.
Unlike rebates, this is a dollar-for-dollar reduction in your federal tax bill. Any unused credit can be carried forward to future tax years. The credit applies to both new and existing homes, and you claim it in the tax year the property is placed in service (when installation is complete and ready for use).
Current Status of the Residential Clean Energy Credit in 2026
Important update: The credit is no longer available for any property placed in service after December 31, 2025. This termination was enacted as part of the One Big Beautiful Bill (Public Law 119-21) in July 2025.
- New installations in 2026 or later: Not eligible.
- 2025 installations: Fully eligible at 30% if placed in service by December 31, 2025.
- Carryforward: Any unused credit from 2025 (or earlier years) can be carried forward to 2026 and beyond on Form 5695.
- Filing in 2026: Use the 2025 Form 5695 when filing your 2025 tax return (due April 2026, or October with extension).
Homeowners who installed qualifying systems before the deadline can still benefit significantly this tax season.
Who Qualifies for the Residential Clean Energy Credit?
To claim the credit, you must meet these IRS requirements:
- The property must be installed in a home located in the United States that you use as a residence (main home, second home used part-time, or even a rented home where you live).
- You must own the home (or be a renter claiming improvements you paid for).
- Landlords or non-resident property owners generally do not qualify.
- Fuel cell property is limited to your main home only.
- Business-use portion: If the home is used for business more than 20%, only the non-business share of costs qualifies.
The credit has no income limits, making it accessible to a wide range of U.S. taxpayers.
Qualifying Clean Energy Technologies and Expenses
Qualified expenses include the cost of the equipment plus labor for onsite preparation, assembly, and original installation, as well as related piping or wiring. Subtract any rebates, subsidies, or incentives that reduce your out-of-pocket cost.
Eligible technologies (must meet specific performance standards):
- Solar electric property (photovoltaic panels that generate electricity for the home).
- Solar water heating property (must provide at least half the energy from the sun; certified by Solar Rating Certification Corporation or equivalent).
- Small wind energy property (wind turbines generating electricity for the home).
- Geothermal heat pump property (must meet ENERGY STAR requirements in effect at purchase).
- Battery storage technology (minimum 3 kilowatt-hour capacity; qualifies even if paired with solar).
- Fuel cell property (must have at least 0.5 kilowatt capacity and >30% efficiency; installed on main home).
What does NOT qualify: Used equipment, traditional roofing/structural components (unless they are solar shingles/tiles that also generate energy), swimming pools/hot tubs used primarily for storage, or property installed after December 31, 2025.
Keep manufacturer certifications and receipts—do not attach them but retain for your records.
How Much Is the Residential Clean Energy Credit Worth?
For 2022–2025 installations, the credit is a straightforward 30% of qualified costs with no annual or lifetime maximum (except fuel cells).
Fuel cell example: Limited to $500 per half-kilowatt of capacity (or $1,000 per full kilowatt), with a combined limit across all residents of $1,667 per half-kilowatt.
Example calculation:
A $20,000 solar panel and battery system installed in 2025 qualifies for $6,000 credit (30% × $20,000), assuming no rebates subtracted.
The credit is limited by your tax liability but carries forward any excess.
Step-by-Step: How to Claim the Residential Clean Energy Credit?
Follow these IRS steps to claim your credit:
- Confirm your installation was completed and placed in service by December 31, 2025.
- Gather documentation: Receipts, manufacturer certifications, and proof of qualified costs (subtract rebates).
- Complete Form 5695, Residential Energy Credits (Part I for the clean energy credit).
- Calculate your credit (30% of qualified costs + any carryforward from prior years).
- Apply the tax liability limit using the worksheet in the Form 5695 instructions.
- Transfer the credit amount to Schedule 3 (Form 1040), line 5a.
- File your return (electronically or by mail). Carry forward any unused amount to next year.
You can file Form 5695 even if you have zero tax liability this year to preserve the carryforward.
Important Limitations and Tax Rules
- Nonrefundable: Can’t create or increase a refund beyond what you owe.
- Basis adjustment: Reduce your home’s cost basis by the credit amount for future capital gains calculations.
- No double-dipping: Can’t claim the same costs under both this credit and the Energy Efficient Home Improvement Credit.
- Subsidies: Public utility rebates or third-party incentives reduce your qualified costs.
- Multiple homes: Total costs go on one Form 5695; attach a statement if needed.
Always consult a tax professional for your specific situation.
How the Residential Clean Energy Credit Interacts with Other Home Energy Incentives?
This credit is separate from the Energy Efficient Home Improvement Credit (Section 25C), which covers items like heat pumps, insulation, windows, and doors (with its own caps through 2025).
You can claim both in the same year for different expenses. Many states and utilities offer additional rebates, grants, or performance-based incentives that can stack with the federal credit—check your local programs via DSIRE (Database of State Incentives for Renewables & Efficiency) or your utility.
Common Mistakes to Avoid with the Residential Clean Energy Credit
- Installing after December 31, 2025 (no credit available).
- Forgetting to subtract rebates or subsidies from costs.
- Claiming used equipment or non-qualified items.
- Missing the carryforward—file Form 5695 every year until used.
- Not keeping records for IRS audit (keep for at least 3 years).
Frequently Asked Questions About the Residential Clean Energy Credit
Can I still claim the credit in 2026?
Yes—if you installed qualifying property by December 31, 2025, or have a carryforward from prior years.
Does the credit apply to second homes?
Yes for most technologies, but fuel cells are limited to your main home.
What if my credit exceeds my tax liability?
Carry the unused portion forward to 2026 and future years.
Do I need a specific certification?
Yes—rely on manufacturer statements for geothermal, solar water heaters, and battery systems.
Final Tips for USA Homeowners
The Residential Clean Energy Credit has helped thousands of American families lower energy bills and reduce carbon footprints through 2025 installations. Even after expiration for new projects, eligible homeowners should act now to claim what they’ve earned on their 2025 taxes.
For the most accurate advice, visit IRS.gov/credits-deductions/residential-clean-energy-credit or consult a qualified tax advisor or CPA familiar with energy credits. Tax laws can be complex—professional guidance ensures you maximize every dollar.
Start your claim today and secure your share of clean energy savings while they last.