Problem with IL CR Form is it totals and attempts to match 1040 1z for all the wages entered in box 16 of the W-2 and duplicates what is reported on the respective states.
To resolve the error, this is what I found works if you are reporting IL resident wages and other non resident states wages on the same return:
Enter the W2 exactly as it appears on the form
For reporting the Non-Resident State return:
Navigate to add the first non resident state
Add the employer and wages as whole numbers only (no cents)
Allocate any self-employment income whole numbers only (no cents)
For reporting the IL State return:
Follow the flow of the interview. Allocate IL wages as -0- because it has already flowed from the federal to the state. Allocate business or self-employment income since these are not used in Form IL CR's calculation.
You will see what appears to be a duplication if you have self-employment income on a line that reads "business income". The same will appear on a line for "self-employment income". Do not make and adjustment it is a system error.
If you have done this correctly, when you reach the page that asks about wages in non IL SE income, it should be zero.
I hope this helps to reduce some of the frustration this may have been causing without some really complicated workaround.
