If you have already transmitted a tax return using TurboTax, it can’t be canceled, withdrawal, or stopped. The IRS has it and will process it.
if you transmitted an incorrect return, you have to wait for it to be processed, and then you will submit an amended return. Your paid service should be able to do this for you, if you explain to them what you have done.
If you did not transmit a turbo tax return, then you do not need to do anything in order to file with a different preparer. Your TurboTax information is not transmitted to the IRS until you request it. You can clear your data for additional security, but it is not necessary.
