South Carolina Reverse Sales Tax Calculator.

South Carolina has a state sales tax rate of 6%, and counties can add local sales taxes that bring combined rates in many parts of South Carolina to 7%–9%. South Carolina's local option taxes include the Local Option Sales Tax (LOST), the Capital Project Sales Tax, the Transportation Sales Tax, and the Education Capital Improvement Sales Tax.

Charleston County has a combined rate of approximately 9% (6% state + county add-ons). Greenville County is approximately 6% with limited local add-ons. Richland County (Columbia) has a combined rate around 8%. South Carolina's local tax rates vary considerably by county.

South Carolina provides some significant exemptions. Unprepared grocery food is exempt from the 6% state sales tax in South Carolina. However, local county sales taxes may still apply to groceries depending on the county. Prescription drugs are fully exempt. Agricultural inputs including farm equipment, seed, and fertilizers are exempt.

South Carolina has a cap on sales tax for certain high-value purchases. Motor vehicles, boats, aircraft, and self-propelled equipment have a sales tax cap of $500 per transaction — meaning the maximum sales tax on these items is $500 regardless of the purchase price. This makes South Carolina an attractive state for purchasing boats, cars, and aircraft compared to states with no cap.

The South Carolina Department of Revenue administers the state sales tax. Economic nexus threshold is $100,000 in annual South Carolina sales. South Carolina participates in SST. Marketplace facilitator laws are in effect.