So the total New York tax that you had withheld from your unemployment, plus any other New York tax that you had withheld anywhere else, was not enough to cover your total New York tax for the year. It's not specifically for the unemployment. The total tax on your tax return is calculated on all your income: unemployment plus any other income that you had. The total tax that was withheld from all sources is applied to the total tax on all your income. Since we can't see your tax return, we have no way of knowing where you might have had inadequate state withholding.
