Quick Answer
Yes, you can claim up to $600 per year for qualifying energy-efficient windows under the Residential Clean Energy Credit. The credit covers 30% of costs through 2032, with a maximum of $200 per window and $600 total annually for exterior doors, windows, and skylights combined.
Best Answer
Robert Kim, Tax Return Analyst
Best for homeowners planning significant energy upgrades who want to maximize their tax savings
How much can you save with the window tax credit?
Yes, you can claim a federal tax credit for energy-efficient windows, but the rules are specific. Under the Residential Clean Energy Credit (formerly Section 25C), you can claim 30% of the cost of qualifying windows, up to $200 per window and $600 total per year for all exterior doors, windows, and skylights combined.
Example: $8,000 window replacement project
Let's say you're replacing 8 windows at $1,000 each ($8,000 total). Here's how the credit works:
The credit phases down after 2032: 26% in 2033, 22% in 2034, then expires unless extended by Congress.
What windows qualify for the credit?
Windows must meet specific Energy Star requirements:
Key factors that affect your credit
What you should do
Before purchasing windows, verify they meet Energy Star requirements and ask your contractor for the manufacturer's certification statement (required by the IRS). Use Form 5695 to claim the credit when filing your tax return.
[Use our return scanner to check if you've missed this or other energy credits →]
Key takeaway: Energy-efficient windows can earn you up to $600 per year in tax credits, but plan multi-year projects carefully due to the annual cap.
*Sources: [IRS Publication 5695 Instructions](https://www.irs.gov/pub/irs-pdf/i5695.pdf), [Energy Star Window Requirements](https://www.energystar.gov/products/building_products/residential_windows_doors_skylights)*
Key Takeaway: Energy-efficient windows qualify for a 30% tax credit up to $200 per window, with a $600 annual cap for all exterior doors, windows, and skylights combined.
Window replacement costs and maximum tax credits by project size
| Project Size | Total Cost | Per-Window Credit | Maximum Annual Credit | Years to Claim Full Benefit |
|---|---|---|---|---|
| 2 windows | $1,400 | $200 each | $400 | 1 year |
| 3 windows | $2,100 | $200 each | $600 (capped) | 1 year |
| 6 windows | $4,200 | $200 each | $600 (capped) | 2 years |
| 10 windows | $7,000 | $200 each | $600 (capped) | 4 years |
More Perspectives
Diana Flores, Tax Credits & Amendments Specialist
Best for homeowners doing smaller window projects who want to understand the credit limits
Smart planning for smaller window projects
If you're replacing just a few windows, the per-window limit works in your favor. For a $500 Energy Star window, you'd get the full 30% credit ($150). But for a $1,000 window, you still only get $200 due to the per-window cap.
Example: 3-window project
Replacing 3 windows at $700 each ($2,100 total):
The key insight: You don't need expensive windows to maximize the credit. Focus on meeting Energy Star requirements rather than premium features that don't increase your tax benefit.
Timing strategy for multiple projects
If you're also considering a new front door (up to $250 credit) or skylights, spread installations across tax years to avoid hitting the $600 annual cap. Install windows in Year 1, door in Year 2 to maximize total credits.
Key takeaway: Smaller window projects can be more tax-efficient per dollar spent, and strategic timing helps you claim the maximum credit across multiple years.
Key Takeaway: Smaller window projects often provide better tax efficiency per dollar, and timing installations across tax years maximizes total credit potential.
Diana Flores, Tax Credits & Amendments Specialist
Best for retirees who want to understand how energy credits work with limited tax liability
How energy credits work when you owe little tax
The window credit is "nonrefundable," meaning it can only reduce your tax liability to zero—you won't get a refund if the credit exceeds what you owe. However, unused credits carry forward to future tax years.
Example: Retiree with $300 tax liability
You install $2,000 worth of Energy Star windows, earning a $600 credit:
Planning considerations for retirees
Key takeaway: Even with low tax liability, energy credits carry forward and can offset future taxes from Roth conversions or other planning strategies.
Key Takeaway: Energy credits carry forward indefinitely for retirees with low tax liability and can offset future taxes from Roth conversions or other income.
Sources
- IRS Form 5695 Instructions — Residential Energy Credits
- Energy Star Window Requirements — Efficiency standards for qualifying windows
Reviewed by Robert Kim, Tax Return Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.