South Carolina https://dor.sc.gov/tax/sales South Carolina chart of South Carolina sales tax filing due dates South Carolina Carolina del Sud Carolina del Sur South Carolina Dept of Revenue South Carolina South Carolina South Carolina www.dor.sc.gov/tax/sales South Carolina South Carolina Carolina del Sur South Carolina Department of Revenue SC Counties by Zip Code. South Carolina South Carolina www.dor.sc.gov/tax/sales South Carolina South Carolina South Carolina Department of Revenue Carolina del Sur Karolina Południowa South Carolina Department of Revenue South Carolina South Carolina