I am a U.S. citizen living in a foreign country and a resident of that country, however my employer is in the U.S. - do I have to file a state tax return?

[Leonard]

What state did you live in before living overseas ?

[cupidboots]

south carolina

[Leonard]

Yes if you moved from South Carolins it is unlikely you will be released from your filing obligation.  you must prove that you will not return to the state. If you cannot prove this, you must file a state income tax return. They look at several different factors to determine if you may return to the state at some time. These factors among others include property mortgages, leases, voter registration, driver's license, and utility bills.