Can i cancel my return It is wrong and wont efile

[DoninGA]

A TurboTax online account cannot be canceled or deleted.  You can clear the tax return and start over.

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 2019 online tax return. Click on Clear & Start Over.

Note - If you have forms and schedules that have not yet been finalized for filing then the tax return cannot be filed.  Click on Review to see the availability dates.

[Critter]

If you actually transmitted the return there is nothing you can do now but wait for the return to either be rejected or accepted sometime after the IRS starts pulling returns for processing on 1/27.   If rejected you can make the corrections and resend it.   BUT  if it gets accepted you MUST WAIT until the return is fully processed before you can amend it.