Did you file a New Jersey resident return and pay the tax due?
If not, why not?
If yes, why do they ask for more tax payment?
You can always amend.
Since NJ and NY have funny rules, for best results, you must be careful to do it correctly.
NJ does not have a part-year resident filing status,
If your NY return is correct, just apply the tax paid to NY as a credit on your amended NJ Resident return.
That's Schedule NJ-COJ.
