June 9, 2026 / in Windows and Doors  / by design

The Federal Window Tax Credit Just Expired – Las Vegas Homeowners Who Replaced Their Windows in 2025 Can Still Claim Up to $600 on This Year’s Return

The federal window energy tax credit is a provision under the Inflation Reduction Act. The federal window energy tax credit (Section 25C) allowed claims up to $600 for qualified installations placed in service by December 31, 2025, but expired thereafter and cannot be claimed for work completed after 2025. If you replaced windows at your Nevada home in 2025, you may still have money on the table before you file.

This guide focuses specifically on Nevada homeowners who completed window replacements in 2025 and want to maximize their federal tax credit before the deadline.

Federal Window Tax Credit Definition: A non-refundable federal tax credit equal to 30% of qualified energy-efficient window costs, capped at $600 per year, available to homeowners who installed eligible windows in their primary residence during the 2025 tax year.

The most common mistake we see is homeowners assuming the credit expired before their project qualified. It didn’t. The credit covers windows installed and placed in service through December 31, 2025, meaning if your project was completed this calendar year, you can still claim it on your 2025 return filed in early 2026. The key is having the right documentation ready before filing.

What the Federal Window Tax Credit Actually Covers in 2025

Under the Inflation Reduction Act’s ENERGY STAR tax credit guidelines, the credit applies to 30% of qualified window costs, up to a $600 annual cap. That’s separate from other home improvement credits, meaning you can potentially stack this with insulation or door credits in the same year.

What qualifies:

• Windows must meet ENERGY STAR Most Efficient criteria for your climate zone
• Nevada falls in Climate Zone 3 (Hot-Dry), so your windows need a U-factor of 0.25 or lower and SHGC of 0.25 or lower
• Must be installed in your primary U.S. residence
• New construction does not qualify – replacements only
• Rental properties are not eligible

What does not qualify:

• Storm windows added over existing frames
• Window repairs or re-glazing only
• Windows that don’t meet ENERGY STAR requirements for Nevada’s climate zone

According to the IRS Energy Efficient Home Improvement Credit page, you’ll file using Form 5695 with your 2025 return. Keep your product certification statements and receipts – you don’t submit them, but you must keep them in case of an audit.

Claiming vs. Waiting: What Happens If You Miss the 2025 Filing Window

Where claiming in 2025 succeeds: You capture the full 30% credit (up to $600) for work already completed. The credit directly reduces what you owe dollar-for-dollar.

Where claiming in 2025 fails: It’s non-refundable, so if your tax liability is under $600, you only get back what you owe – you can’t receive a refund beyond your liability.

Where waiting fails: The credit under the Inflation Reduction Act was originally through 2032 but was terminated after December 31, 2025, by the One Big Beautiful Bill Act, and work completed in 2025 must be claimed on the 2025 return. You can’t defer it to 2026 for a project already done.

Where doing nothing fails: You leave real money unclaimed. A typical Nevada window replacement of $3,000-$6,000 with qualifying products could yield $600 back – that’s not nothing.

The verdict: If your windows were installed and qualified in 2025, file Form 5695 with your 2025 tax return. There’s no strategic reason to delay.

Thinking about whether your project qualifies? Let’s talk. The team at Desert King Windows in Las Vegas NV can pull your product documentation and help you understand what to bring to your tax preparer – no pressure.

Nevada-Specific Context: State Incentives That Stack With the Federal Credit

Nevada doesn’t currently offer a state income tax credit for window replacements (there’s no state income tax), but there are two additional programs worth knowing about in 2025.

ProgramTypeAmount (2025)Who QualifiesFederal IRA Window CreditFederal tax creditUp to $600Primary homeowners, qualifying productsNV Energy RebateUtility rebateVaries by projectNV Energy residential customersWAP (Weatherization Assistance)Federal grantIncome-basedLow-income households in NevadaHERO / PACE FinancingFinancing programN/A – financing onlyQualifying NV homeowners

Check directly with NV Energy for current rebate availability, as program funding changes throughout the year. Rebates and credits can often be combined, meaning your out-of-pocket cost could be lower than your initial estimate.

Your 2025 Window Tax Credit Action Plan

1. Step 1 – Confirm your windows are ENERGY STAR certified: Check your product documentation or contact your installer. The certification label or manufacturer’s certificate is what the IRS requires you to retain.
2. Step 2 – Gather receipts and installation records: You need the total amount paid for windows and installation labor for the year. Material costs and installation both count toward the 30%.
3. Step 3 – Verify your primary residence status: The home must be your primary U.S. residence. Vacation homes and rentals don’t qualify.
4. Step 4 – Calculate your potential credit: Multiply your total qualifying costs by 30%, up to $600. If you also replaced doors or added insulation in 2025, those have separate credit caps that stack.
5. Step 5 – File Form 5695 with your 2025 return: Give your tax preparer all documentation by the time you file in early 2026. The form is straightforward but easy to miss if your preparer doesn’t ask.

Documentation Checklist Before You File

• ☐ Manufacturer’s certification statement showing ENERGY STAR compliance
• ☐ Itemized receipt showing window costs and installation costs separately
• ☐ Contract or invoice from your installer with completion date in 2025
• ☐ Proof of primary residence (mortgage statement, utility bill, or similar)
• ☐ IRS Form 5695 (your tax preparer will have this)

Key Takeaways for Nevada Homeowners in 2025

• The deadline is your 2025 tax return – work completed this year must be claimed when you file in early 2026
• 30% back, up to $600 – on qualifying ENERGY STAR certified windows for Nevada’s climate zone
• Documentation matters – keep manufacturer certifications and receipts, even if you don’t submit them
• Nevada has no state income tax, so the federal credit is your primary incentive, but NV Energy rebates may also apply
• Non-refundable means dollar-for-dollar – the credit reduces your tax bill, not a direct payment if you owe nothing

If you replaced windows this year through Desert King Windows in Las Vegas NV, located at 4224 Arcata Way Unit H, North Las Vegas, NV 89030, your installer should be able to provide the manufacturer certification statement you need. If you’re still planning a window project before year-end, there’s still time to qualify for the 2025 credit. Contact us to confirm product eligibility before you buy.

Frequently Asked Questions

Does the federal window tax credit apply to Nevada homeowners in 2025?

Yes, the federal window energy tax credit fully applies to Nevada homeowners who installed qualifying windows in 2025. Nevada has no state income tax, so this federal credit is your primary tax-based incentive. The credit equals 30% of eligible costs, up to $600.

What ENERGY STAR rating do windows need to qualify in Nevada?

For Nevada’s Climate Zone 3 (Hot-Dry), qualifying windows need a U-factor of 0.25 or lower and a Solar Heat Gain Coefficient (SHGC) of 0.25 or lower. Always confirm the specific product meets ENERGY STAR’s Most Efficient designation before purchasing.

Can I claim the credit if I financed my window installation?

Yes, financing doesn’t affect your eligibility for the window tax credit. The credit is based on the cost of the qualified property placed in service in 2025, regardless of how you paid for it.

What if my tax liability is less than $600?

The credit is non-refundable, meaning it can only reduce your federal tax liability to zero – it won’t generate a refund beyond what you owe. If you owe $300 in federal taxes and qualify for a $600 credit, you’d receive $300 in savings, not a $600 check.

Do I need a permit to replace windows in North Las Vegas?

Window replacement in North Las Vegas typically requires a building permit for structural or size changes, but like-for-like replacements in the same opening often don’t. Check with the City of North Las Vegas Building Department or ask your contractor before starting work.

How do I get the manufacturer certification statement for my windows?

Your window installer or the manufacturer’s website can provide the certification statement showing your product meets ENERGY STAR requirements. Keep this document with your tax records – you don’t mail it to the IRS, but you’ll need it if your return is questioned.

Is there a Nevada state rebate for energy-efficient windows?

Nevada doesn’t offer a dedicated state tax credit for windows since the state has no income tax, but NV Energy does offer residential energy efficiency rebates that may apply. Contact NV Energy directly at nevadaenergy.com to check current program availability and funding status.

About the Author

The Desert King Windows Team, window installation professionals serving the North Las Vegas and greater Las Vegas, Nevada area. We help homeowners find the right window products and provide the documentation needed for tax credit claims. Visit our homepage or explore our services to learn more.