How do you find the federal extension application form if you've already filed? I need to print it out as proof but can't find the document through Turbo tax.

 

After you file

Form 4868 for the extension will be included in the download from Print Center 

 

When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.  

This will take you back to the 2018 online tax return.

Click on Tax Tools on the left side of the online program screen.  Then click on Print Center.  Then click on Print, save or preview this year's return.  Choose the option Include government and TurboTax worksheets