Where is my completed e-file form 8879? It doesn’t appear to be in my pdf containing all the other forms

Your tax return is self-prepared using tax preparation software so there will not be Form 8879 included with your return.

If you e-filed the tax return there will be an Electronic Postmark Report which will have the date/time the tax return was transmitted and the date it was accepted by the IRS, if accepted.

You will need to use Print Center and the option for all worksheets to get the Report.

To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/

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 2024 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

If you used the desktop CD/Download editions installed on your computer, the only copy of your tax data file and any PDF's will be on the computer where the return was created.  TurboTax does not store online any returns completed using the desktop editions.

Form 8879 is used to authorize a paid tax preparer to e-file your tax return for you. It is not used when you file your tax return yourself with TurboTax. You don't have to authorize yourself to file your own tax return. If the bank is asking you for Form 8879, either they think you paid someone to do your tax return, or they don't understand how tax returns are filed.

You could try explaining to the person who's asking for it that you filed by yourself, and show them the Electronic Postmark, which shows that you filed your tax return. If that doesn't work, try asking to speak to a supervisor or other higher-level person who knows more about tax return filing. If they still insist on getting Form 8879, consider switching to a competent bank.