That's a god question...I dunno but I'd like to know in case my family decides to move. Hummmm....anyone know the answer or advice?
I would think if your other ducks are in order for moving, filing ahead of time shouldn't be a problem. When you move, you want everything in place, to be able to go from one state to the other, and get right into your new lives. It wouldn't make sense if everyone's school's and jobs were changed ahead of time, but you wouldn't be allowed to file an exemption in time for when you arrive.