S.C. Code Ann. Regs. 67-1514 – Self-Insurance Tax.

A. Each self-insured employer and each self-insurance fund shall file a Form 10, Self-Insurance Tax Return, and make payment of its tax liability according to the Act.
B. The Commission may assess a penalty and institute revocation proceedings for failure to pay the tax within fifteen days of its due date as required by the Act.
C. A sixty day extension of time in which to file a Form 10 may be requested in writing before the Form 10 is due. An extension of time in which to file the Form 10 may be granted by the Self-Insurance Division provided the estimated tax liability is paid at the time of the request for an extension is made.
D. If an employer or fund withdraws its self-insurance privileges, self-insurance privileges are revoked, or an employer or fund ceases to operate, the self-insured or the self-insurance fund shall continue to file the Form 10 for a minimum of three years and continue to file the Form 10 until notified by the Self-insurance Division that there exist no other contingent liabilities arising during the period of self-insurance and the Form 10 is no longer required to be filed.