State tax filing
You need to go back through your Massachusetts return and make sure that you enter the gambling losses in the correct spot. There are two places in the return where the program asks for gambling information.
The fist one asks about specific Massachusetts lottery winnings, you should not enter anything there. Then there is a question about Massachusetts, select "Had gambling losses incurred at certain licensed establishments." In the next question enter the losses.
See the images below for your reference:
