The Federal Government offers a tax credit for homeowners who install new energy efficient windows. This tax credit is worth up to 10% of the cost of the windows (including installation costs), up to a maximum of $200. This tax credit can be used to offset the cost of the windows and is available for any energy efficient windows installed between January 1, 2020 and December 31, 2020. In order to qualify for this tax credit, the windows must meet certain energy efficiency standards established by the U.S. Department of Energy. The windows must be ENERGY STAR certified and have a U-Factor and Solar Heat Gain Coefficient rating of 0.30 or lower. The windows must also be installed in an existing home, and must be used as the primary source of heating and cooling for the home. This tax credit can help homeowners offset the cost of new energy efficient windows and make them more affordable. It is important to note that this credit is only available until December 31, 2020, and can only be used to offset the cost of the windows and their installation.