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How do I correct an error on my electronically filed Form IL-1040 return?

Answer #291 -- ( Published 09/22/2005 09:54 AM | Updated 07/12/2017 10:41 AM )

How do I correct an error on my electronically filed Form IL-1040 return?

You must file a paper Form IL-1040-X, Amended Individual Income Tax Return. However, if you filed your IL-1040 through MyTax Illinois, you may also file Form IL-1040-X through MyTax Illinois. If you are filing Form IL-1040-X due to a federal change, do not file it until you receive notification from the IRS showing it was accepted. For more information, refer to the Form IL-1040-X Instructions.

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