You don't have to e-file until you're ready. You can edit any portion of your return until you've completed filing. Just log out of your account and log back in when you're ready to continue. See below for instructions to e-file your federal return using TurboTax.
https://ttlc.intuit.com/replies/3301375
*** 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.***
