S.C. Code Ann. § 12-37-255
(b) The notification shall be given by the person liable for payment of the taxes on the homestead in the year of change and in each successive year that the exemption is improperly granted. The amount of any tax exemption granted by reason of the failure to give the notification and a penalty equal to twenty-five percent of the amount thereof shall be due and payable for each year in which the exemption is granted by reason of the failure to give notice. The penalty and the amount of tax shall be added to the current year's duplicate and shall be collected in the same manner as other taxes.
A lien is hereby created for the tax and penalty upon the property exempted by reason of the failure to give notification, which shall have priority over all other liens.