State tax filing

You can't deduct gambling losses unless you itemize on your federal return.   The NJ return will include your losses whether you itemize or not, as long as they are entered in the federal section.   After you enter your gambling winnings in the federal section, the next question is about your losses.    Go back to the federal gambling winnings and look for the following screen to enter your losses.   It is right after wins and w-2gs.   @zmhdes