February 18, 2016 @ 12:00 am - February 19, 2016 @ 12:00 am Deposit payroll tax for payments on Feb 10-12 if the semiweekly deposit rule applies.
February 17, 2016 @ 12:00 am - February 18, 2016 @ 12:00 am Begin withholding on employees who claimed exemption from withholding in 2015 but did not file a W-4 to continue withholding exemption in 2016.
February 16, 2016 @ 12:00 am - February 17, 2016 @ 12:00 am File a new Form W-4 if you claimed exemption from income tax withholding in 2015.