Two scenarios here: I live in MA. 1. Buying a used truck in NH. I will probably trade my current into the dealership and swap plates for the used truck I purchase. If the dealer doesn't have a service that makes the registry run for me the day of purchase, can I legally swap the plates to the truck I purchase and drive back into MA to the registry with the paperwork, get it inspected, etc? I believe I have 7 days if that is the case? 2. Leasing a brand new truck in MA. I got a quote from the dealer per month which included excise tax. I thought excise tax was paid out once a year? But this dealer is telling me they roll the excise tax into the lease payments that way you don't have to pay one lump sum every year. Is this true? I'd hate to have them roll the excise tax payment into the lease, then also get billed the excise tax once a year for the three years I lease. Thank you.