« All Events Event Series Event Series: Forms 1040, 1041, 1120, 3520/FinCen, unless a 6 month extension was filed Forms 1040, 1041, 1120, 3520/FinCen, unless a 6 month extension was filed April 15, 2027 « Forms 1065 & 1120S (Calendar Year) unless an extension filed 1st Qtr Payroll Due » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: April 15, 2027 Series: Forms 1040, 1041, 1120, 3520/FinCen, unless a 6 month extension was filed
