Homeowners going green should also check out a second tax credit designed to spur investment in alternative energy equipment. The residential energy efficient property credit, equals 30 percent of what a homeowner spends on qualifying property such as solar electric systems, solar hot water heaters, geothermal heat pumps, wind turbines, and fuel cell property. Generally, labor costs are included when calculating this credit. Also, no cap exists on the amount of credit available except in the case of fuel cell property.

Not all energy-efficient improvements qualify for these tax credits. For that reason, homeowners should check the manufacturer’s tax credit certification statement before purchasing or installing any of these improvements. The certification statement can usually be found on the manufacturer’s website or with the product packaging. Normally, a homeowner can rely on this certification. The IRS cautions that the manufacturer’s certification is different from the Department of Energy’s Energy Star label, and not all Energy Star labeled products qualify for the tax credits.