how to delete a return already started - start fresh

[VolvoGirl]

Are you using the Online version?  If you haven't filed, registered or paid you can try to clear and start over

https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-clear-and-start-over-in-turbotax-onli...

Or if it doesn't let you clear and you haven't paid you could just start a new account.  Online is only good for 1 return per account.  But you can use the same email address for 5 accounts.   How to start another return in the Online version

https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...

[old12guy]

Not online version - 

[VolvoGirl]

In the Desktop program just start a new return.  Go up to File-New.  You can still transfer from 2019 again if you want.  You might want to save the new return with a name to tell it apart from the wrong one.  You can delete the wrong return using your computer from your Documents.  The tax files end in .tax2020 and should be in your Documents.