This is an income tax forum. You'll probably not find an answer here. When you register the vehicle in you home state, they may give you a credit for the tax paid in the other state (or waive the home state use/sales tax because you paid in the other state). If you paid in both states, you could contact the original state about a refund. If you live in a state with no sales tax (Alaska, Delaware, Montana, New Hampshire, and Oregon) you probably cannot get a refund.
