I have installed a solar panel for my primary home this year. I own the solar but finance it which cost me $33648.00. how much credit I will get ? what form I fill out?

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The Residential Energy Efficient Credit is "non-refundable."  That means the credit cannot exceed the amount of tax you owe.  What you cannot use this year carries forward. 

To claim the solar credit, please follow these steps:

• In TurboTax, open your tax return
• Click on Federal in the left-hand column, then on Deductions & Credits on top of the screen
• Scroll down to All Tax breaks, locate the section Your Home and click on Show more
• Click Start next to Home Energy Credits (see screenshot)
• Follow the interview to enter your information.

Also, here’s the federal solar tax credit’s value :

• 2018: 30%
• 2019: 30%
• 2020: 26%
• 2021: 26%
• 2022: 26%

Here are some examples of what you can claim:

• Solar Products
• Permitting Services and Fees
• Installation Costs
• Engineer Fees
• Electrician Fees
• Shipping Costs
• Solar Consulting Fees
• Tools Purchased or Rented
• General Equipment Costs (Fork-list, Safety Harnesses, etc.)
• Any Miscellaneous Costs and Fees (For Solar)

This guide covers it in-depth

Comment removed...all updated now.

Installing solar panels earns you a federal tax credit. That means you'll get a credit for your income taxes that actually lowers your tax bill. ... In 2021, the ITC will provide a 26% tax credit for systems installed between 2020 and 2022, and 22% for systems installed in 2023.