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

Last UpdatedFebruary 17, 2021
Total Files2
VersionRev. 05-20

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.

Download & Links
IL-W-4 (05-20).pdf
Link to IL Form Download
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