If you have not paid for the online edition you are using, have
not filed your tax return or registered the Free edition, then you can clear
your return and start over with a lower priced edition.
- Click on Tax
Tools on the left side of the program screen while working on the 2017
online tax return.
- Click on Clear & Start Over.
See the following TurboTax FAQ for more information: https://ttlc.intuit.com/replies/3288495