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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.

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Information for Claiming Disaster Relief

Disaster Tax Relief Information

When taxpayers are affected by a natural disaster, the counties affected may be declared as disaster areas. This may also result in the tax filing and payment due dates being extended. For current disaster declarations and due date extensions for Illinois, please see news releases and informational bulletins.  
 
Taxpayers are also able to request penalty relief based upon reasonable cause due to the disaster. For instructions, see How do I request a waiver of penalty due to reasonable cause? (illinois.gov).