S.C. Code Ann. § 12-6-5600: Residency of individuals and businesses; boundary clarification.

For South Carolina income tax purposes:

(A) An individual whose state of residency changes as a result of the boundary clarification from North Carolina to South Carolina or from South Carolina to North Carolina, as contained in the amendments to Section 1-1-10, effective January 1, 2017, must be treated as though the individual moved to or from South Carolina on January 1, 2017.

(B) For businesses whose property location changes from North Carolina to South Carolina or from South Carolina to North Carolina as a result of boundary clarification, for income tax purposes, the property is treated as though the property moved into or out of South Carolina on January 1, 2017.