I received an IDOR-1-RCN Return Correction Notice indicating a math error in Illinois, do I need to file an amended state return or just pay the difference?

Question

Kohari Gonzalez Oneyear & Brown · Accepted Answer

An Illinois IDOR-1-RCN Return Correction Notice often points to a math adjustment, and the next step can depend on whether the notice reflects only a calculation change or also a broader issue on the return. In many cases, the key factors are what the notice says was changed, whether the state accep For an answer applied to your exact numbers, bring this question to a licensed KGOB CPA in a focused session and leave with a clear next step.