When Should You File? Your tax return is due April 18, 2022. If you file after this date and owe tax, you will owe interest on the unpaid amount and you may owe penalty, too.
Fiscal year tax returns are due by the fifteenth (15) day of the fourth (4th) month after the close of the fiscal year. You must complete the fiscal year filing period information at the top of the Form IT-40.
