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How do I make changes to my individual income tax return?

Answer #13 -- ( Published 07/29/2005 10:41 AM | Updated 07/12/2017 10:41 AM )

How do I make changes to my individual income tax return?

If you discover that you made an error on your return after it was filed or if your federal return was adjusted by the Internal Revenue Service (IRS), you should file an amended Illinois return using Form IL-1040-X, Amended Individual Income Tax Return. 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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