Energy-efficient windows and doors can make a big difference in your home’s comfort, energy use, and long-term value. They help keep heat inside during winter, block unwanted heat in summer, and reduce outside noise. But replacing windows and doors can be a major investment—so it’s worth exploring the financial incentives available to help offset the cost. Here’s a guide to the programs and tax credits you can take advantage of in the U.S., and what to keep in mind along the way.

Why Energy-Efficient Windows and Doors Pay Off

Older windows and doors are often among the biggest sources of energy loss in a home. Upgrading to modern, ENERGY STAR®–certified models can help you:

• Lower your energy bills – high-performance glass and frames reduce heat loss and drafts.
• Improve indoor comfort – fewer cold spots and more consistent temperatures year-round.
• Increase your home’s value – energy upgrades are attractive to future buyers.
• Reduce your carbon footprint – using less energy means fewer greenhouse gas emissions.

While the upfront cost can be significant, federal and state incentives can make the project much more affordable.

What Incentives Are Available?

There are several ways U.S. homeowners can get financial help for energy-efficient upgrades, depending on the type of project and where you live.

1. Federal Tax Credits (Energy Efficient Home Improvement Credit)

Under the Inflation Reduction Act, homeowners can claim a federal tax credit for qualifying energy-efficient improvements, including windows and doors.

Here’s how it works:

• You can claim 30% of the cost of eligible windows and doors, up to $600 for windows and $500 for doors per year.
• The products must meet ENERGY STAR® certification requirements.
• You’ll need to keep receipts and manufacturer certification statements for your tax records.
• Claim the credit when you file your federal tax return using IRS Form 5695.

This credit is available through 2032, so you can plan upgrades over several years if needed.

2. State and Local Rebates

Many states, cities, and utility companies offer their own rebates or low-interest financing for energy-efficient home improvements.

To find local programs:

• Visit the Database of State Incentives for Renewables & Efficiency (DSIRE) at dsireusa.org.
• Check your utility provider’s website for rebate programs.
• Some local governments also offer property tax incentives or energy efficiency grants.

These programs vary widely, so it’s worth checking what’s available in your area before starting your project.

3. Utility and Manufacturer Rebates

Some window and door manufacturers, as well as energy utilities, offer cash-back rebates for installing qualifying products. These are often time-limited promotions, so ask your contractor or retailer if any apply to your purchase.

Choosing the Right Windows and Doors

When selecting new windows and doors, look for the ENERGY STAR® label and check the National Fenestration Rating Council (NFRC) ratings for performance.

• U-Factor measures insulation—lower numbers mean better efficiency.
• Solar Heat Gain Coefficient (SHGC) measures how well the window blocks heat from sunlight—lower is better in hot climates, higher can be better in cold ones.
• Frame materials like fiberglass, vinyl, or wood-clad options offer different balances of insulation, durability, and maintenance.

If you’re unsure which products are best for your home, consider getting an energy audit to identify where upgrades will have the biggest impact.

Documentation and Requirements

To qualify for tax credits or rebates, you’ll need to document your purchase and installation properly:

• Keep itemized invoices showing product details and costs.
• Save manufacturer certification statements confirming ENERGY STAR® compliance.
• Take before-and-after photos if required by your rebate program.
• File all paperwork before the stated deadlines.

Proper documentation ensures you receive the full benefit you’re entitled to.

Combine Upgrades for Greater Savings

Replacing windows and doors can be part of a larger energy-efficiency plan. Combining this project with insulation upgrades, heat pump installation, or solar panels can lead to even greater savings—and may qualify you for additional incentives.

An energy audit or home energy assessment can help you prioritize improvements and maximize your return on investment.

Do It Right – and Enjoy the Benefits for Years

Energy-efficient windows and doors are an investment that pays off in comfort, savings, and sustainability. With the right products and proper installation, you’ll enjoy a more comfortable home and lower energy bills for years to come.

Before you start, take time to explore all available incentives, choose a qualified installer, and keep your documentation organized. With a little planning, you can make your home more efficient—and get rewarded for doing it.