|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Note to Annual Filers: IL-941-A is obsolete, use IL-941 to file your annual return.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Note to Annual Filers: IL-941-A-X is obsolete, use IL-941-X to amend a previously filed IL-941-A.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.