South Carolina Code of Laws — Title 12 (Taxation)
S.C. Code Ann. § 12-6-5095 — Rounding to nearest whole dollar on tax returns
For purposes of a return filed pursuant to this chapter, all amounts may be rounded by the department or the taxpayer to the nearest whole dollar. An amount of fifty cents or more may be rounded to the next dollar. An amount of less than fifty cents may be eliminated.
Source: official text