S.C. Code Ann. § 9-5-420

Each participating employer may, in consideration of the employee's retention in, or entry upon, employment after February 17, 1955, collect the contributions required of its employees under Section 9-5-410. Contributions so collected shall be paid into the contribution fund in partial discharge of the liability of such participating employer under Section 9-5-430. Failure to deduct such contribution shall not relieve the participating employer of liability therefor.