This is a solved problem. For example, reside in NY state for more than half the year and they'll figure it out and send you a bill for owed income taxes. It wi

This is a solved problem. For example, reside in NY state for more than half the year and they'll figure it out and send you a bill for owed income taxes. It will then be your burden to prove that you were not in the state, not theirs to prove you were.