If you find that you may made a mistake and just wish to start over, you can use the Clear and Start Over (see article below) feature to wipe all the information from your return. You may also wish to use this feature in order to downgrade from a higher version of TurboTax or if you no longer wish to use TurboTax. Please note that if you have already paid or registered your TurboTax product, then you will not be able to use this feature and would need to create a new account.