State tax filing

By trial and error, I found that Line 18 on Schedule 1 (IA 1040), is filled in by the amount you enter on the third screen, last line:

2022 Federal Extension Payments made with form 4868.

This makes sense because the extension payment for tax year 2022 is made in early 2023, when you actually file the extension.

On the desktop version of TurboTax, there are three different screens that address parts of this issue.