If I move elsewhere in MA, to which town do I pay my bill?

First and foremost notify the Registry of Motor Vehicles as soon as you move and notify them of your new address. Excise in Massachusetts is not prorated based on moving from one town to another. You pay one city or town a year. It is whichever the vehicle was being registered from on January 1^st, or in the case of a newly registered vehicle, on the date of registration. Unlike insurance, excise rates do not vary throughout the state. If you are billed from the incorrect community, call the Assessor's Office in that community, and ask what is required in terms of getting the bill corrected.