S.C. Code Ann. § 12-36-1330: Tax on storage, use, or consumption of tangible personal property.

(A) Every person storing, using, or otherwise consuming in this State tangible personal property purchased at retail, is liable for the use tax, until the tax is paid to the State.

(B) A receipt from a retailer:

(1) maintaining a place of business in this State; or

(2) authorized by the department to collect the use tax, is sufficient to relieve the purchaser from further liability for tax to which the receipt refers.

(C) For the purposes of this chapter, a retailer authorized by the department to collect the use tax is regarded as a retailer maintaining a place of business in this State.