« All Events This event has passed. Event Series Event Series: Forms W2 & 1099 Due Forms W2 & 1099 Due January 31 « Form 1041ES – 4th Qtr Forms 1065 & 1120S (Calendar Year) unless an extension filed » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: January 31 Series: Forms W2 & 1099 Due