Ugh sorry it was actually the lady at the DMV who told me about it go figure. But at least in the future it's something to consider especially if you give a car to your kid or whatever. Immediate family and that includes parents as well. Edit there is also a form you can still use to get some of it back if you can prove you paid tax in another state. That didn't work for us as NH has no tax but of course to make up for it a new car reg is insanely expensive for the first few years. They get ya anyway they can. Bloodsucking bastards really.