If you buy a car in NH but live MA do pay taxes?

If you purchase a car in New Hampshire but live in Massachusetts, you are required to pay taxes on the vehicle in Massachusetts. While New Hampshire does not impose a sales tax on motor vehicles, Massachusetts does. As a resident of Massachusetts, you are responsible for paying the sales tax on the vehicle in the state where you reside. To do this, you will need to register the vehicle in Massachusetts and pay the applicable sales tax at the time of registration.