I am having the same problem. It appears to be a logic error in schedule ICR , Step 2, Section A , line 5, when comparing lines 3 and 4g. Line 3 is current IL tax due. Line 4g is IL Property tax credit which is 5% of IL property tax paid to an IL county. I have met all the requirements to qualify for the credit on line 4g in Section A.
In my case line 3 is almost 6 times greater than the computed tax credit on line 4g. Both non-zero integers. Line 5 compares lines 3 & 4g and the lesser number is to be reported on line 5. Yet the comparison result is zero and not the lesser number on line 4g.
I checked last year's return which has the same comparison logic and the lessor number is correctly calculated and entered as a property tax credit.
This is clearly a logic error.
