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2018 IL-941-X Amended Illinois Withholding Income Tax Return

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STOP:

Are you filing the 2017 Form IL-941-X to correct your 2017 Form IL-941 for withholding made during calendar year 2017 (January 1, 2017 through December 31, 2017)?

If so, click here:

2017 IL-941-X, Illinois Withholding Income Tax Return

or

Are you filing your 2018 Form IL-941-X to correct your 2018 Form IL-941 for withholding made during calendar year 2018 (from January 1, 2018 through December 31, 2018)? If so, click here:

2018 IL-941-X, Illinois Withholding Income Tax Return