February 1, 2016 @ 12:00 am - February 2, 2016 @ 12:00 am Deposit any FUTA tax owed through Dec 2015.
February 1, 2016 @ 12:00 am - February 2, 2016 @ 12:00 am Furnish Forms 1098, 1099 and W-2G to recipients for certain payments during 2015. Furnish Form W-2 to employees who worked for you during 2015.
February 1, 2016 @ 12:00 am - February 2, 2016 @ 12:00 am Individuals: File your tax return if you did not pay your last installment of estimated tax by Jan 15th (see Form 1040-ES)