Do soundproof windows qualify for the new federal tax credit?
Most soundproof windows are super-energy efficient, so it’s likely that they qualify for the new federal tax credit for energy-efficient home-improvement products. To double-check, visit the Web site of your product’s manufacturer. For any product that qualifies for the tax credit, the manufacturer will have a certificate that you can download that proves its eligibility. Save that certificate, along with your sales receipt and the label on the product from the National Fenestration Rating Council (NFRC), which reveals the product’s U-factor and solar heat gain coefficient. The IRS has said you must have that label to claim your credit.
