S.C. Code Ann. § 12-4-550: Requirement for public officers, and for all persons, to furnish information in connection with taxes.

The department shall:

(1) require municipal, county, and other public officers to report information as to the assessment of property, collection of taxes, receipts from licenses and other sources, and information necessary in the work of the department in the form the department prescribes; and

(2) require all persons to furnish information concerning their capital, bonded or other debts, current assets and liabilities, value of property, earnings, operating and other expenses, taxes, and other facts necessary for the department to ascertain the value and relative tax burden borne by all kinds of property.