In many of my communications with seller(s), the questions always lead to closing costs.  As I speak with many "Non-Resident Sellers", many are not aware SC imposes a 7% Withholding Tax on the gain from a sale.  It is SC's way of ensuring you file a SC tax return acknowledging the sale for that year.  Upon filing of the return, the 7% is returned to the seller.  

Please copy and paste this link in your browser to learn more on this important issue:

fhttps://dor.sc.gov/resources-site/lawandpolicy/Advisory%20Opinions/RR09-13.pdfiling