Unfortunately, as a resident of GA, you are required to file a GA resident state income tax return to report all income from all sourced (including SC wage income). However, you will get a state income tax credit in GA for any SC taxes paid on your SC nonresident state income tax return for income that is taxed in both SC and GA.
You
will want to work on your nonresident SC state income tax return first. You
will then take a tax credit from your nonresident SC state income taxes on your
resident GA state income tax return. (Please note that you will only get a tax
credit for your SC state income taxes up to the amount of GA state income taxes
that would have been paid if the income was earned in GA). The credit for
taxes paid to another state section will be at the end of your residence
state's interview process.
Just
follow the TurboTax guide when working on your states (remembering to do your
nonresident state return first) and TurboTax will do all the calculations and
credits to your resident states return
Here
is additional information about filing in multiple states (select "see
more answer" to view the entire attachment)
https://ttlc.intuit.com/replies/3300797
