Motor vehicle sales tax rates differ greatly inside the United Usa. Car tax by state often varies within counties and cities or streets. If you are moving to another state, calculating car tax prior to moving are going to useful in determining location to grab. However, if you are trying avert the car tax from your home address, then go ahead and purchase a house to park your car in because unless you keep a house or have a home in the state in question you risk tax evasion. Car dealers and ...