You
can downgrade using the clear and start over feature. However, you will be
required to restart your return. Please keep in mind that our
various TurboTax programs handle different tax situations and their
associated forms.
In
order to clear your return and select a different TurboTax edition follow these
steps:
1.
Sign in and select continue my return
2. Select My account and click on Clear and Start Over
3. It will ask if you are sure you want to clear you return? If you want to
clear your return click yes this will start your tax process all over.
4.
Start a new return with the correct edition of TurboTax selected.
https://ttlc.intuit.com/replies/4248526