Review your W-4

It is time for employees to review their current Form W-4 (Employee’s Withholding Certificate) status for preferred changes in filing status and/or withholding needed for tax year 2021.

  • To Review your current withholdings:
  • To Change your withholdings:
    • Ensure you are on the Illinois State University network
      • You will need to use VPN if you are off campus – call the IT Help Desk at (309) 438-4357 if you require assistance setting up your VPN.
    • Go to
    • Login using your ULID and Password
    • Select iPeople
    • Select Tax Forms
    • Complete the W-4 Tax Data section
    • Complete the Claim Exemption (if applicable)
    • Select Submit

Did you claim tax exempt status in 2020?

All employees who claimed total exemption from income tax withholding in 2020 must submit a new 2021 Form W-4 by February 15, 2021, to continue to claim exemption from withholding in the new year. After that date, Illinois State must begin withholding income tax if the 2021 Form W-4 is not submitted.

W-4 requirements for Non-US Citizen Employees

Non-US Citizen Employees must not fill out a new W-4 or make changes to an existing W-4 without guidance from a tax specialist in the University Payroll Office. If applicable, treaty benefits need to be renewed each calendar year. Please contact the university tax specialist by calling (309) 438-3106 or e-mail to schedule an appointment.

IRS resources