All due dates assume that the date falls on a business day. If the due date falls on a holiday or weekend, the due date will be the next business day.
- This event has passed.
October 14, 2018 - October 15, 2018
File Form 1120 or 1120-A and pay any tax due. This due date applies only if you timely requested an automatic 6-month extension. Otherwise, see April 15.