Can I file only an amended federal return and not be charged for the state return the state return /

[xmasbaby0]

You are not charged to prepare an amended federal return, nor are you charged to amend your state return if amending is necessary.   The only time you are charged for amending your return is if you have to upgrade to a higher version of the software---and then you pay the difference between the original fee and the upgraded version's fee.