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• Create Date September 30, 2015
• Last Updated February 17, 2021

IL-W-4 Employee's and other Payee's Illinois Withholding Allowance Certificate

The IL-W-4 must be completed by employees so employers know how much state income tax to withhold from wages. This form should be maintained in conjunction with the federal Form W-4.

Instructions on completing the IL-W-4 are included in the document.

Attached Files