S Corps: File Form 1120S for calendar year & pay any tax due. Furnish copy of Sch. K-1 to each shareholder. For automatic 6-month extension, file Form 7004 & deposit estimated tax. File Form 2553 to elect S Corp status beginning with calendar year 2016.

When:
March 15, 2016 all-day
2016-03-15T00:00:00-04:00
2016-03-16T00:00:00-04:00