New windows may qualify for a federal energy efficiency tax credit, but eligibility rules change each year.
New windows may qualify for a federal energy efficiency tax credit, but eligibility rules change each year.
Tax credits tied to energy-efficient upgrades are available in some years — always consult a qualified tax professional for the most current guidance before filing.
What Homeowners in Merrimack County Should Know Before Tax Season
- Credits, not deductions: Energy-efficient window tax incentives are typically structured as credits, not deductions. A credit reduces your tax bill dollar-for-dollar, which is more valuable than a standard deduction.
- ENERGY STAR requirement: To qualify for most federal energy credits, windows generally need to meet ENERGY STAR certification standards. The most efficient products carry a 0.1 CFM draft rating and meet strict U-value requirements.
- Annual changes apply: Tax credit rules shift frequently based on federal legislation. What applied last year may not apply this year — a tax professional can confirm what’s currently available for your situation.
- Energy savings still count: Even without a tax credit, ENERGY STAR certified windows reduce heating and cooling costs by up to 13%. Upgrading from double- to triple-pane windows can improve energy efficiency by 40% or more.
- Water damage risk: Delaying window replacement due to cost concerns can lead to water damage around window frames, rot, and mold. Local window replacement companies that offer financing make it easier to move forward now rather than later.
- Financing options available: The average cost of window replacement in the U.S. is $21,922. Coastal Windows & Exteriors offers financing options based on credit approval, making full replacement more accessible for Capital Region homeowners.
Making the Right Move for Your Home
Top Pick: Full window replacement with ENERGY STAR certified products for Concord area homeowners who want energy savings, potential tax benefits, and long-term protection from water intrusion. Contact Coastal Windows & Exteriors for energy efficient and ENERGY STAR certified exterior remodeling products!
Worth Knowing: Financing up to 20 years based on credit approval makes replacing all windows at once more practical than phasing the project over time.
Always first: Speak with a licensed tax professional before claiming any home improvement credit — rules vary by year, product, and income level.
Ready to replace your windows and start saving? Coastal Windows & Exteriors is the #1 woman-owned exterior remodeling contractor in New England, with 7,000+ installations across Massachusetts, New Hampshire, and Maine.
Request a free window replacement estimate from Coastal Windows & Exteriors.
Browse our complete windows FAQ guide from Coastal Windows & Exteriors.
Explore our Windows Exterior Remodeling Home Improvement Help Center.
Last Updated: April 2026
Sources:
- ENERGY STAR certified windows, doors, and skylights can reduce heating and cooling costs by up to 13% compared to non-certified products. ENERGY STAR Residential Windows, Doors, and Skylights ENERGY STAR’s product guidance on certified window performance standards, draft ratings, and estimated annual energy savings. (Accessed April 2026)
- Upgrading from double- to triple-pane windows can improve energy efficiency by 40% or more. PNNL How Triple-Pane Windows Stop Energy and Money Flying Out the Window Pacific Northwest National Laboratory’s research on energy performance improvements from triple-pane window upgrades in residential homes. (2025)
- The average cost of window replacement in New England is $21,922. JLC Online Cost vs. Value 2025 — New England JLC Online’s regional Cost vs. Value data on window replacement project costs for New England homeowners. (2026)
