Depending on which state you live in then you may have to pay sales tax on a used car. There are 5 states that do not have sales tax. The states that do not have sales tax include Delaware, New Hampshire, Alaska, Oregon and Montana. You can buy a car in one of those states, but you have to register the car in your home state. If you dont live in one of the 5 states then you would pay the tax
. when you register your car. You can't register a car in a state if you do not have an address there.
