If you are "fixing" a rejected return, there is no additional charge to re-submit the return after making the correction.
Additionally, if you are AMENDING a return you've already filed, there is no charge to amend a current-year return in TurboTax Online.
*** 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.***