1. On line 1, fill in the cost of your system as it is listed on your final invoice.
2. Fill in line 5 and 6. Line 6 should match the amount of your federal tax credit as it was listed on your proposal.
3. Fill in any other parts of the form if you have additional residential energy credits for which to apply.
4. Fill in line 16 only if you do not have the tax liability to use the entire credit this year and want some to roll over next year.
5. On page 2, line 17a, select "Yes" then fill in your address on line 17b. Select "No" for 17c.
6. File this form with your federal taxes.