Hi caravanqs,
To downgrade, you would have to clear and start over. Here are the instructions:
In TurboTax Online, you can erase your return and start from scratch as long as you haven't submitted payment, deducted the TurboTax fee from your refund, or registered.
- If you haven't already done so, sign in at TurboTax.com and select the Take me to my return button.
- On the welcome back screen, in the left-side menu, select Tax Tools, and then Clear & Start Over (select the menu icon in the upper-left corner if you don't see this menu).
- Answer Yes in the pop-up to confirm.