Federal Energy Efficient Home Improvement Tax Credits

Due to the passage of the Big Beautiful Bill in 2025, the Federal Energy Efficient Home Improvement Tax Credits are now set to expire on December 30, 2025.

Homeowners with qualifying SoftLite purchases should use the Cornerstone Building Brand four-digit QM code: C3N5 in their tax preparation to claim this credit. 

Efficiency tax credits took effect on Jan. 1, 2023, and were initially set to expire on Dec. 31, 2032. The tax credit amount is limited to 30% of the project cost (the previous lifetime cap of $500 was changed to an annual cap of either $1,100 to $2,000, depending on the efficiency improvements). This means homeowners could claim credit for more projects, especially if they were spread out over multiple years.

These Energy Efficiency Home Improvement credits were applicable on several products to help homeowners maximize their savings, including windows/skylights and exterior doors, which now must meet ENERGY STAR Most Efficient criteria. 

For more information and to stay up to date on available tax credits, visit ENERGY STAR’s page on Federal Tax Credits.

All of SoftLite’s product lines include energy-efficient windows, with many being ENERGY STAR certified. If you purchased ENERGY STAR Most Efficient SoftLite windows, you are eligible for a tax credit to offset some of your costs of your window purchase (excludes installation). Reference our Manufacturer’s Certificate PDF to find your specific model number. To claim the credits, submit Form 5695 with your tax return.

For tax years prior to January 1, 2023, energy tax credits were good for up to 10% of cost up to $500 or a specific amount from $50-$300. The product must have been placed in service in an existing home (principal residence). New construction and rentals did not apply.