February 5, 2016 @ 12:00 am - February 6, 2016 @ 12:00 am Deposit payroll tax for payments on Jan 30-Feb 2 if the semiweekly deposit rule applies.
February 3, 2016 @ 12:00 am - February 4, 2016 @ 12:00 am Deposit payroll tax for payments on Jan 27-29 if the semiweekly deposit rule applies.
February 1, 2016 @ 12:00 am - February 2, 2016 @ 12:00 am File Forms 940, 941, 943, 944 and/or 945 if you did not deposit all taxes when due.