What do you want----a copy of the extension request form--or you just want to continue work on the 2023 tax return so that you can finish preparing the return and e-file it?
If you started your return, you need to access it by using exactly the account and user ID that were used when you started it. There is no place on the Form 1040 to say you have an extension---but the IRS knows. You do need to make sure that any estimated payment you made is entered:
When you requested your extension you were supposed to pay your estimated tax due. Did you enter the payment you made into your tax return? Go to Federal>Deductions and Credits>Estimates and Other Taxes Paid>Other Income Taxes
You have until October 15 to e-file your 2023 return. After that, e-filing will close and the return will have to be filed by mail.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**