In most states, when you buy a car from a private seller, you are not required to pay sales tax. However, there may be exceptions depending on the state where the car is being purchased. Some states require you to pay sales tax on the purchase of a vehicle from a private seller. It is important to check with your local tax authorities to determine if you are required to pay sales tax on a private vehicle purchase.
Additionally, it is important to note that even if you are not required to pay sales tax, you may still be required to pay other taxes, such as registration fees and title fees. Be sure to research all of the fees and taxes associated with buying a car from a private seller in your state before you make a purchase.