You can clear and start over by following the
instructions in the TurboTax FAQ below:
https://ttlc.intuit.com/replies/4248526
However,
there are some times when the clear and start over feature will not work. Please see the following
TurboTax FAQ for more information if you are unable to clear and start over:
https://ttlc.intuit.com/replies/5719850
