Tax Dodger
Sorry, I just could not resist.You would not have any use taxes, but you could have transit fees for locks as appropriate. A luxury, property, or excise tax levied by Canada or a province is entirely different from what amounts to a vehicle registration. I'm not aware of what identification of having paid your tax you may have to display, I'm sure you have seen the annual stickers that New York and Vermont require their boat owners to display. I think that a lack of same or similar would prompt more than a few boardings and inspections during a long trip with stops in many busy ports and would not be worth the hassle, nor easy to rectify away from home. I would not expect the US Coast Guard, or marine patrols from various government jurisdictions to be understanding of a lack of proof of any current registration or taxes paid, etc., regardless of the practice of authorities in the area you most often frequent. Also, keep in mind that many of these police authorities are looking for illegal arms and drug trafficking. An unregistered boat or one with less than complete papers would be a fine target.I would pay the taxes and have all of the papers and proof of the boat being properly registered and fees paid before embarking on any trip. And by the way, unlimited towing insurance is the next best assurance of limiting liability of a huge towing claim if you are so unfortunate.