1. Completely log out of your Turbo Tax account.

2. Clear your browsing history.

3. Log back into your account and click on "Take me to my return".

4. If the form comes back, you can delete all entered information and start over,

https://ttlc.intuit.com/replies/4248526

To delete Schedule H in TurboTax Online:

1. Go to "My Account" in the top right corner

2. Select "Tools"

3. Under "Tools Center" select "Delete a Form"

4.  Navigate to "Schedule H" (Renter's Certificate) and select "Delete" next to it.