I have not received my refund, should I include it on my IL-1040-X?

Yes. You must:

Include all previous overpayments, refunds, and credit carryforward (even if you have not received it) from your original Illinois Income Tax return, previously filed Form IL-1040-X, or for any other reason. Do not include interest that you have received.
Include your original voluntary contributions to state funds. You may not change the amount of your voluntary contributions to state funds made on your original Illinois Income Tax return.
Include use tax reported on your original Form IL-1040.

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