Yes, at least for a limited time. Congress made it a little easier to upgrade your windows while reducing your taxes. The Energy Policy Act of 2005 offers consumers a tax credit for replacing old appliances and home products with energy efficient models. The tax credit is up to $200 with the purchase of qualified doors, windows, and skylights. Look for the ENERGY STAR label. The Department of Energy and the Environmental Protection Agency developed the designation for products meeting certain performance criteria. The tax credit is good for purchases made in 2006 or 2007 but does not include installation costs.