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Window Replacement Tax Credit in 2026: What Ended and What Is Left for Oklahoma Homeowners
The federal credit is gone for windows installed this year. Here is exactly what ended, what PSO really offers, and what to do instead of waiting.
No. The federal tax credit for replacement windows ended on December 31, 2025, and windows installed in 2026 do not qualify. The IRS instructions for Form 5695 say it plainly: you cannot claim energy efficient home improvement credits for expenditures or property placed in service after that date. If a website, a mailer, or a salesperson is telling you in October 2026 that your new windows will earn a credit, they are working from an old page.
This matters because it changes how you should plan a project. We replace windows across Tulsa, Broken Arrow, Owasso, Jenks, and the rest of Northeastern Oklahoma, and “what about the tax credit?” is still one of the first questions people ask. Here is the real status of everything that touches it.
What the Federal Credit Was, and What Happened to It
For installations between January 1, 2023 and the end of 2025, the Energy Efficient Home Improvement Credit covered 30 percent of the cost of qualifying exterior windows and skylights, capped at $600 total. You claimed it on Form 5695. Congress ended it early, so it expired with 2025 instead of running for several more years.
If you installed windows in 2025, you can still claim it on your 2025 tax return, subject to the rules above. We are a window company, not tax advisors, so bring your invoice to your tax preparer and have them confirm the details for your situation.
If you are installing in 2026 or later, there is no federal credit for windows. The ENERGY STAR certification on a window still tells you it meets efficiency criteria, which is worth having for your electric bill, but it no longer earns a tax credit.
The $600 Credit Was Never That Big
Even when it existed, the credit was smaller than most people assumed. The cap was $600 for all windows combined, and a whole-house window project is far larger than that.
At $700 to $1,100 per window installed, 15 windows come to $10,500 to $16,500. A $600 credit against that is between 3.6 and 5.7 percent of the project. It was a nice bonus, not a reason to replace windows, and its absence is not a reason to stall a replacement you needed anyway. Our 2026 window cost breakdown shows what moves the price within those ranges.
What PSO Actually Offers Right Now
Most of Tulsa is served by Public Service Company of Oklahoma, and several rebate-directory websites list a PSO rebate for replacement windows, with figures like $50 per window or up to $200 or $500. We checked PSO’s own residential rebate page for existing homes in October 2026, and we did not find a window replacement rebate on it. What it does list is a mix of smaller and larger items:
| PSO residential rebate (existing homes) | Amount listed |
|---|---|
| Door seals, door sweeps, weatherstrip | $2 each |
| Programmable Wi-Fi thermostat | $85 |
| Attic or ceiling insulation (thin existing insulation) | $600 |
| Air infiltration (sealing air leaks) | $600 |
| Heat pump water heater | Up to $750 |
Programs change from year to year, so confirm the current list on the PSO rebates page before you spend money counting on any of it. We also could not find an Oklahoma state credit for homeowners replacing windows in an existing home. The state energy credit we found is aimed at builders of new energy-efficient homes.
The Honest Advice: Check the Attic First
Look at that table again. PSO pays $600 toward attic insulation in homes with thin existing insulation, and $600 for sealing air leaks, but nothing for replacing a working window. That lines up with how energy savings usually work in Oklahoma homes. Attic insulation and air sealing generally pay back faster than new windows, because they stop larger and cheaper losses.
So if your goal is a lower bill and your attic is thin, that is the better first dollar. Replace windows when they are failing: a dead seal fogging the glass, rot, windows that will not stay open, or drafts you can feel. A glass-only fix runs $500 to $750 per opening and a full replacement runs $700 to $1,100 per window. Our guide to the signs a window needs replacing shows how to tell which situation you are in.
Should You Wait for the Credit to Come Back?
We would not. Tax law can change, but there is no enacted replacement for the expired credit, and a failing window costs you every month you hold off. It is also a bad sign when a company offers a limited-time “credit” to pressure you into signing, because there is no federal credit to expire. Our best time of year to replace windows guide covers the timing factors that do matter in Oklahoma.
How to Pay for It Without a Credit
Plan the project at full price and judge it on the windows, not on a refund that is not coming. Replacement work is backed by our 5-year workmanship warranty, and financing is available for qualifying projects. Our financing guide walks through the options in plain terms. Free estimates are no-pressure, and we will tell you which windows are worth replacing and which can wait.
Get a Straight Number
If you want to know what your windows would actually cost, with no credit math involved, call Morgan Windows at (918) 400-2326 or request a free in-home estimate. We are a locally owned Oklahoma company serving Tulsa, Broken Arrow, Owasso, Jenks, Bixby, Sand Springs, Catoosa, and Claremore, and we will give you the real price and the real picture. You can also read more about our window replacement service.