Motor vehicle sales tax rates differ greatly inside the United Levels. Car tax by state often varies within counties and towns. If you are moving to another state, calculating car tax prior to moving possibly be useful in determining location to own. However, if you are trying to stop the car tax away from your home address, go ahead and obtain a new home to park your car in because unless or you own a house or inhabit the state in question you risk tax evasion. Car dealers and native motor ...