Possible online services disruption due to Internet related outage
A worldwide technology outage is causing disruption to some State of Illinois online systems. We are aware of this issue and are diligently working on restoration.
2023 Individual Income Tax Forms
If Line 30 is greater than Line 24, subtract Line 24 from Line 30.
If Line 24 is greater than Line 30, subtract Line 30 from Line 24.