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2011 and Prior Tax Years Withholding Tax Forms (Payroll)

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Name Description  
IL-941 Illinois Withholding Income Tax Return and Instructions (R-12/09)
Note to Annual Filers: IL-941-A is obsolete, use IL-941 to file your annual return.
IL-941-X Amended Illinois Withholding Tax Return (R-12/10)
Note to Annual Filers: IL-941-A-X is obsolete, use IL-941-X to amend a previously filed IL-941-A.
UI-WIT-X Amended Illinois Income Tax Withholding Return for Household Employers (R-06/08)
Note: For tax years on or before 2010. Beginning with 2011, file your household withholding tax on your IL-1040. Click here for more information.