@Mike9241 - not an expert here, but aren't there rules that vary by state, that if your job is in NJ but you moved to NC (temporarily) for the covienence of COVID, then you are still required to pay full year tax in NJ...
it is not clear from the @taxhelpplz what the circumstances were that he was in NC for part of the year. Was that a permanent move or temporary due to COVID???? is it possible that the employer expects the work to occur in NJ and therefore didn't not adjust to NC withholdings as they never approved the move, even for the convenience of remote working due to COVID?
