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What is a Return Correction Notice (RCN)?
- I received a Return Correction Notice (RCN). What should I do?
- What is a Notice of Tax Due?
- What is the best way for me to respond to a notice I received?
- How do I file a correction for the IL-941 or IL-941-A return?
A Return Correction Notice (RCN), is a letter we send to you when we find problems with your Illinois tax return. The letter details the problems we found, any changes we made, and the action you need to take.
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