Short answer
South Carolina taxes vehicle sales at 5% IMF (max $500). South Carolina taxes the price after the trade-in is deducted. South Carolina collects tax at the buyer's home-state rate, capped at South Carolina's own rate. South Carolina credits sales tax legally paid to another state, so the same dollars are not taxed twice. The rules above cover retail dealer sales; most states handle leases and private-party sales separately.
South Carolina car sales tax quick facts
Last verified August 23, 2026| Sales tax rate on vehicles | 5% IMF (max $500)[1] |
| Trade-in credit | South Carolina taxes the price after the trade-in is deducted.[2] |
| Selling to an out-of-state buyer | South Carolina collects tax at the buyer's home-state rate, capped at South Carolina's own rate.[2] |
| Credit for tax paid to another state | South Carolina credits sales tax legally paid to another state, so the same dollars are not taxed twice.[3] |
| Dealer doc fee | No statutory cap[4] · Taxability: Not yet verified against an official source. Confirm with the South Carolina Department of Motor Vehicles. Official site → |
| Temp tag for the drive home | Dealers must issue a 45-day traceable temporary plate at the point of sale to every retail buyer, including buyers who will register the vehicle in another state (system effective January 18, 2024). (valid 45 days)[5] |
| Out-of-state buyer registration | A person without an SC credential can register a vehicle (complete SCDMV Form TI-006, Statement of Vehicle Operation). County vehicle property tax must be paid first and the paid receipt brought to the SCDMV; a vehicle the owner previously registered in another state owes a flat $250 IMF at titling.[6] |
From the desk
South Carolina's Infrastructure Maintenance Fee replaced sales tax on vehicles and is capped at a fixed maximum, which turns expensive-vehicle math upside down versus neighboring states. The desk quoting a Georgia or North Carolina buyer needs all three systems straight.
Selling to an out-of-state buyer in South Carolina
South Carolina collects tax at the buyer's home-state rate, capped at South Carolina's own rate.[2]
On paper that means Form ST-385, filled out at delivery. If the form never gets signed, the dealer eats the tax, not the buyer.
Then comes the part nobody staples to the deal jacket: moving the title, issuing the temp tag, and getting the registration done in the buyer's state. That handoff chain is what Voltra's title tracking was built to watch.
Buying in South Carolina from out of state
If you live in another state and buy in South Carolina, the deciding rule is where the vehicle gets registered: your home state's tax applies at registration, and what happens at the South Carolina sale depends on the row above. South Carolina credits sales tax legally paid to another state, so the same dollars are not taxed twice.[3]
Registration and temp tags
A person without an SC credential can register a vehicle (complete SCDMV Form TI-006, Statement of Vehicle Operation). County vehicle property tax must be paid first and the paid receipt brought to the SCDMV; a vehicle the owner previously registered in another state owes a flat $250 IMF at titling.[6] Dealers must issue a 45-day traceable temporary plate at the point of sale to every retail buyer, including buyers who will register the vehicle in another state (system effective January 18, 2024). Validity: 45 days.[5]
Bordering states
Cross-border deals from South Carolina most often involve Georgia and North Carolina. Treat each pairing as its own problem and put it through the out-of-state checker.
Vehicle-type exceptions
Items not subject to the IMF (aircraft, boats, boat and watercraft motors, horse trailers, and similar non-SCDMV-registered items) fall under the sales-tax Max Tax regime instead, taxed at 5% capped at $500 per item, so the effective ceiling matches the IMF.[7]
How South Carolina actually levies this
South Carolina charges a one-time Infrastructure Maintenance Fee (IMF) instead of sales tax on vehicles that will be titled or registered with the SCDMV: 5% of the purchase price, never more than $500 per vehicle, collected by the SCDMV at titling/registration.[1]
Sources
- dmv.sc.gov/Vehicle-Owners/Buying-Or-Selling-A-Car · verified 2026-08-23
- dor.sc.gov/resources-site/lawandpolicy/Advisory%20Opinions/RR18-1.pdf · verified 2026-08-23
- dor.sc.gov/sites/dor/files/Documents/Policy%20Manuals/sales-and-use-tax-auto-and-truck-dealers-guide.pdf · verified 2026-08-23
- consumer.sc.gov/business-resourceslaws/licensing/registered-creditors/motor-vehicle-dealers · verified 2026-08-23
- dmv.sc.gov/news/dealers-licensing-and-transaction-laws-are-changing · verified 2026-08-23
- dmv.sc.gov/vehicle-owners/moving-to-sc · verified 2026-08-23
- dor.sc.gov/sales-use-tax-index/maximum-tax-max-tax · verified 2026-08-23