I own a single-member LLC registered in Illinois. It is for selling items online on Etsy. The business is run by my family members, who are residents of South Carolina (not members of LLC), and they handle the shipping of the items and day-to-day operations. Do I need to file state tax in both states?
Yes. If the operations are physically taking place in SC, then you would need to file a return for SC.
Then since you are a resident (I am assuming since it is registered in IL) you will need to file the IL return to report your income as ALL income from ALL sources must be reported on your resident return.
When filing you will need to complete your non-resident state first and then your resident state claiming a credit on your resident state for taxes paid to your non-resident state.
Ok. thanks. Do i need to register the LLC in SC also? By operating, they ship items from there. Does that change anything?