To claim energy tax credits, you have to fill out special forms when you file your federal income taxes:
Use Form 5695 to claim the Energy Efficient Home Improvement Credit and Residential Clean Energy Credit. You have to claim the credit for the tax year when the appliance or other equipment was installed (not just purchased). Use Form 8911 to calculate your credit for Alternative Fuel Vehicle Refueling Credit. Individual taxpayers may not need to complete or file the form — review the instructions for details.
Certain eligibility requirements apply depending on the program, so it’s wise to consult a tax professional if you’re unsure if you qualify.