If you’re planning to make your home more comfortable and cheaper to heat this winter, there’s good news and a change worth knowing about. The change first: the federal tax credit that used to help pay for energy-efficient windows and doors ended on December 31, 2025. The good news: Wisconsin energy rebates still put real money on the table for the upgrades that actually move the needle on a heating bill, especially insulation and air sealing. Here’s a plain-English look at what’s still available in 2026, who qualifies, and where windows fit in.
Key Takeaways
- The federal 25C tax credit for windows, doors, and insulation expired at the end of 2025 and is no longer available.
- Focus on Energy rebates are still available to nearly all Wisconsin utility customers, regardless of income, mostly for insulation, air sealing, and efficient equipment.
- Income-qualified households can access much larger HOMES and HEAR rebates, worth up to $8,000 and $14,000 respectively.
- In 2026, the rebates favor insulation and air sealing over windows themselves, so that’s where the fastest payback usually is.
- New windows still cut drafts and improve comfort. They just aren’t directly rebated the way they were through 2025.
The Big Change: The Federal Windows Credit Ended
For years, homeowners could claim a federal tax credit (the 25C Energy Efficient Home Improvement Credit) toward energy-efficient windows, doors, and insulation. That credit expired on December 31, 2025. If you’ve read older articles promising a tax break on new windows, that’s why they no longer apply in 2026. We’re leaving it out of this guide on purpose, because the goal here is what actually pays out today.
The upside is that Wisconsin’s energy rebates, offered through state and utility programs, are still running, and they’re generous, especially for the upgrades that save the most energy in an older Madison-area home.
Energy Rebates Still Available in 2026
Focus on Energy is Wisconsin’s statewide, utility-funded efficiency program, and it’s available to nearly every residential utility customer regardless of income. It offers cash rebates for insulation, air sealing, smart thermostats, heat pumps, and efficient water heaters. For most homeowners, this is the first place to look, because there’s no income test to participate.
HOMES (Home Efficiency Rebates) and HEAR (Home Electrification and Appliance Rebates) are the larger, income-qualified programs funded through the Inflation Reduction Act and administered in Wisconsin by Focus on Energy. They remain active in 2026. HOMES rewards whole-home efficiency projects with rebates up to $8,000 for the deepest energy savings, and HEAR provides up to $14,000 total toward efficient electric equipment, insulation, air sealing, and electrical upgrades. Lower-income households receive the largest amounts.
Eligibility for HOMES and HEAR is based on your income relative to the Area Median Income for your county. In Dane County, for a family of four, that ballpark is roughly $72,650 at 80% AMI and about $136,200 at 150% AMI. Those figures shift by household size, so the only way to know your tier is to check.
Where Do Windows Fit In?
Honestly, in 2026 windows are more of a comfort-and-value upgrade than a rebate play. With the federal credit gone, there’s no direct rebate for replacing windows the way there is for adding insulation. That doesn’t make new windows a bad idea. In a drafty older home, quality windows noticeably cut cold spots, reduce outside noise, and stop the winter draft you feel near the glass. They also lift curb appeal and resale value.
The practical takeaway: if your budget is limited and your goal is a lower heating bill, insulation and air sealing usually deliver more savings per dollar than windows, and they’re the pieces the current rebates reward. If your goal is comfort, drafts, and the look of the home, windows earn their place. Many Madison-area homeowners do both over time, starting with whichever solves their biggest problem.
How Beckman Builders Helps
Beckman Builders installs quality replacement windows and doors and handles insulation and whole-home comfort upgrades across the greater Madison area, including Windsor, DeForest, Sun Prairie, and throughout Dane County. We’ll help you plan a project that makes sense for your home and budget, rather than paying for the wrong upgrade first. For rebate specifics, the best source is Focus on Energy directly, and we’d point you to reach out to the program to confirm what you qualify for. We’re licensed and insured in Wisconsin. See more on our doors and windows page, or, if drafts and cold rooms trace back to an unfinished or uninsulated basement, our basement remodeling page.
A quick note: energy rebates change their amounts and rules over time, so treat the figures here as a starting point and confirm the current details before you plan around them.
Frequently Asked Questions
Is there still a tax credit for energy-efficient windows in Wisconsin in 2026?
No. The federal 25C tax credit that covered energy-efficient windows, doors, and insulation expired on December 31, 2025. There is no direct replacement for the windows credit in 2026.
What home energy rebates are still available in Wisconsin?
Focus on Energy rebates are available to nearly all Wisconsin utility customers regardless of income, mainly for insulation, air sealing, and efficient equipment. Income-qualified households can also access the larger HOMES (up to $8,000) and HEAR (up to $14,000) rebate programs.
Do the rebates cover new windows?
Mostly no. The current Wisconsin rebates favor insulation, air sealing, and efficient heating and cooling equipment. New windows still improve comfort and value, but in 2026 they generally aren’t directly rebated the way insulation is.
What gives the best return on a heating bill?
For most older Madison-area homes, insulation and air sealing deliver more energy savings per dollar than window replacement, and they’re the upgrades the current rebates reward. Windows are better justified by comfort, drafts, and appearance.
How do I know if I qualify for HOMES or HEAR?
Eligibility depends on your household income relative to your county’s Area Median Income. In Dane County the thresholds are roughly $72,650 (80% AMI) and $136,200 (150% AMI) for a family of four, adjusted by household size. Focus on Energy can confirm your tier.
Not sure which upgrade to tackle first? Beckman Builders will help you plan a comfort-and-efficiency project that fits your home and takes advantage of what’s actually available in 2026. Request a free consultation or call (608) 846-3341.
