2021 Withholding (Payroll) Tax Forms

Click here to file your IL-941 return or pay your IL-501 in MyTax Illinois
Click here for information about filing your W-2s and 1099s

Name     Description
     Payment Coupon and Instructions                                        Due Dates
​IL-941                  Instructions
    Illinois Withholding Income Tax Return                                Due Dates
​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 

    ​Illinois Withholding Tax Tables Booklet - effective January 1, 2021 - December 31, 2021
    Statement by Person Receiving Gambling Winnings
    Employee's Illinois Withholding Allowance Certificate
IL-W-5      Certificate of Residence in Illinois
IL-W-5-NR      Employee's Statement of Nonresidence in Illinois
​    Certificate of Days Worked in Illinois for Non-Residents

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

    Withholding Income Tax Payment and Return Due Dates