You don't have to cancel anything. Simply log out of your account, and you can return at any time to complete your data entry and e-filing.
"Can I Save My Work and Return Later?"
https://ttlc.intuit.com/replies/3301211
*** 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.***
