S.C. Code Ann. § 4-7-140

In case such new county is formed the county so newly created shall pay all the costs and expenses of its creation, and in no wise shall any county which has been cut for the formation of a new county be liable for any of the cost or expenses incurred in cutting the same or in the formation thereof. The auditor of the newly created county, after such county has been organized and its officers elected, shall levy a tax upon all the taxable property in his county sufficient to cover the costs and expenses of its creation.