After you file

@ Lounabrnl 

When that 2-factor authentication screen crops up that asks for the second method of authentication, is there any link about authenticating another way?

 

If not, here's how to phone TurboTax Support for assistance.  You'll see a phone number when you expand the FAQ.    Tell them you can't use the second step of the 2-factor authentication.

 

FAQ: What's the TurboTax phone number?

https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/turbotax-phone-number...