Motor vehicle sales tax rates differ greatly while in the United States in the 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 is useful in determining where and when to buy. However, if you are trying in order to avoid the car tax from your own home address, go ahead and acquire a house to park your car in because unless your very own a house or live the state in question you risk tax evasion. Car ...