S.C. Code Ann. § 12-2-85

Notwithstanding any other provision of law, if a failure of a computer, software program, network, or database resulting from a "Year 2000" date change causes any kind of notice or bill, issued by the State or a political subdivision of the State, requiring payment to be made by a taxpayer to be mailed or forwarded late or otherwise untimely provided to the taxpayer, the taxpayer may not be penalized or assessed any penalties or interest for making a late payment.