To qualify for a window tax credit, the homeowner's windows have to meet requirements for the ENERGY STAR program, be installed in the homeowner's main home and have been installed between Jan. 1, 2012 and Dec. 31, 2014, according to ENERGY STAR. The credit also applies to doors and skylights.
The tax credit a person receives might be equal to 10 percent of the cost of the window up to a limit of $200, notes ENERGY STAR. Homeowners can receive as much as $500 for qualifying doors. While windows installed before 2012 might qualify for a tax credit, homeowners should consult a certified tax professional or refer to Form 5696 for residential energy credits.
For a window to meet ENERGY STAR program requirements, it has to be made by an ENERGY STAR partner; be officially certified and tested by the National Fenestration Rating Council, or NFRC; and have ratings that qualify for the energy-efficient standards from the U.S. Department of Energy, explains ENERGY STAR. Certified ratings from the NFRC and specific climate zones are used to determine the performance criteria for energy-efficient windows.
In addition to energy-efficient windows, homeowners can install a wind turbine, solar hot water heater and solar electric equipment to qualify for a tax credit, notes the Internal Revenue Service. Some equipment does not have to be installed in the taxpayer's main home, but the property does have to be located in the United States.