S.C. Code Ann. § 24-27-150

If a prisoner does not have a trust account, or if the prisoner's trust account does not contain sufficient funds to make the first-time payments required by this chapter, the civil action may still be filed, but the prisoner shall remain responsible for the full payment of filing fees and court costs. Payments of ten percent of the preceding month's income of the prisoner's trust account, as set forth in this chapter, shall be made from the prisoner's trust account as soon as a trust account is created for the prisoner and funds are available in the account.