Where do you show that you extended the federal return on the federal input sheets? The state input sheets has a box that shows the return has been extended.

[DoninGA]

A federal tax return, Form 1040, does not require entry of an extension request.  Any taxes owed on the 2023 tax return had to be paid on or before April 15, 2024 to avoid a failure to pay penalty.

[VolvoGirl]

Did you make a payment with the extension?   If your extension payment did not automatically show up on your 1040 or state return you need to enter it.  So make sure it's not already there before you enter it!

For 2023 Federal Extension payments should be on scheduled 3 line 10. And go to 1040 line 31.

You can type estimates paid in the search box at the top of your return and click Find and it will give you a link to Jump To the screen where you enter Extension Payments.

To enter the amount you paid with an extension (including state extension)  go to

Federal Taxes (or Personal for desktop H&B version)

Deductions and Credits

Then scroll way down to Estimates and Other Taxes Paid

Other Income Taxes - Click the Start or Update button

Next page second section Payments with Extension

Either Visit All or Click Start or Update by the extension you paid