Once a TurboTax account is created, it cannot be deleted. You can simply abandon it.
If you'd like to clear any data that you may have entered into the program, you can use the "Clear and Start Over" feature. See instructions below.
https://ttlc.intuit.com/replies/4248526
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
