The Nonbusiness Energy Property Credit for residential exterior doors and windows, insulation, heat pumps, furnaces, central air conditioners, and water heaters expired at the end of 2017. As of this date the Congress has not renewed the credit for tax year 2018.
The Residential Energy Efficient Property Credit for qualified solar electric property, solar water heating property, small wind energy property, geothermal heat pump property, and fuel cell property is available for tax year 2018.
