Complete this form so that University Payroll can withhold the correct federal income tax from your pay. For security purposes, do not email this completed form containing your social security number and other personally identifiable information. Use this form only if you do not have access to online tax information at my.uncc.edu. For instructions on how to establish or change your Form W-4 online, see this FAQ. Otherwise, securely deliver your forms to the Payroll Office using one of the three delivery methods mentioned in the FAQ.