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2020 Withholding (Payroll) Tax Forms

Name Description
IL-501
  Payment Coupon and Instructions
IL-941
Instructions Illinois Withholding Income Tax Return
IL-941-X Instructions Amended Illinois Withholding Income Tax Return   
Schedule P CSV Instructions
Illinois Withholding Payroll Schedule
​Schedule WC
Instructions
​Withholding Income Tax Credits
Schedule WC-I

​Withholding Income Tax Credits Information and Worksheets
IL-700-T  
Illinois Withholding Tax Tables Booklet
​IL-W-6

​Certificate of Days Worked in Illinois for Non-Residents
IL-W-6-WS

​Worksheet to Report Days Worked in Illinois for Non-Residents