February 29, 2016 @ 12:00 am - March 1, 2016 @ 12:00 am File Form 730 and pay the tax on wagers accepted during January.
February 29, 2016 @ 12:00 am - March 1, 2016 @ 12:00 am Farmers and fishermen: File Form 1040 and pay any tax due. However, you have until Apr 18 to file if you paid your 2015 estimated tax payments by Jan 15, 2016.
February 29, 2016 @ 12:00 am - March 1, 2016 @ 12:00 am File Form W-3 with Copy A of all Forms W-2 issued for 2015.