In South Carolina, the at-fault party in a crash holds the responsibility for the cost of a rental car. This means that the at-fault driver’s insurance company should cover the rental car cost.
You may have to pay for the rental car initially because it takes time to investigate a crash and determine who is at fault. However, if you’re determined to not be at fault, the at-fault party’s insurance will absorb any rental car costs you may have accrued.