Motor vehicle sales tax rates differ greatly inside a United Nations. Car tax by state often varies within counties and towns. If you are moving to another state, calculating car tax prior to moving will be useful in determining where and when to decide to purchase. However, if you are trying to avoid the car tax from your own home address, go ahead and buying a house to park your car in because unless you have a house or live the state in question you risk tax evasion. Car dealers and nativ...