Sc Form 1120S - 1) that s corporations must withhold 5 percent of the south carolina taxable income of. The purpose of form sc1120s is to report the income, deductions, and credits of an 's' corporation in south carolina. Web the dor provides:
1) that s corporations must withhold 5 percent of the south carolina taxable income of. Web the dor provides: The purpose of form sc1120s is to report the income, deductions, and credits of an 's' corporation in south carolina.