If you want to delete the unwanted return, select "View all tax returns" from under "My Returns", and delete the unwanted return by clicking the small trash can next to it (in the right side of your screen).
Note: If you only have one return, you'll need to start a new return before you can delete the existing return.
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I have the same issue where my tax tool option is not available, and the little garbage can button is also not available. Only available on the return that I filed, but not the in progress one.
Note that when you delete a return, you won't be able to access it again and we won't be able to retrieve the information for you.
The steps below outline how to delete a return for TurboTax Online:
Sign in to TurboTax Online for the tax year of the return you’d like to delete
On the Great to see you again! screen, locate the return
If the return you want to delete has a trash can beside it:
Select the trash can icon
When prompted to confirm the deletion, select Delete
If the return you want to delete doesn't have a trash can beside it:
You will need to start a new return. On the page that displays your tax returns, you'll see two returns: the blank return you just created, and the return you want to delete. Locate the return you want to delete and select its corresponding trash can icon. When prompted to confirm the deletion, select Delete.
Thank you for choosing TurboTax.