No, there has not been any change in the reporting of NY wages for a NJ resident. You'll have to ask your employer to explain the amounts on your W-2. Normally box 16 for New York should be exactly equal to box 1 (federal wages), not just close. That is a New York requirement. If you worked only in New York, there shouldn't be a NJ line on your W-2 at all. You have no income from New Jersey. Was any NJ tax withheld (NJ box 17)? That would be the only reason to have a NJ line at all. It sounds like your W-2 is wrong, and your employer has been filling out your W-2 incorrectly for years.