You cannot enter an amount directly on Lines 18 - 20 on the Form 5695 in Forms mode. You must enter your costs for the insulation, doors or windows in the TurboTax interview using Step-by-Step.
To enter Home Energy Credits -
Click on Federal Taxes (Personal using Home and Business)
Click on Deductions and Credit
Click on I'll choose what I work on (if shown)
Under Your Home
On Home Energy Credits, click the start or update button
