Where is my refund?
Visit the Where's my refund to find out if the Illinois Department of Revenue has initiated the refund process. The Income Tax Refund Status Inquiry System should provide you an estimated date for when you will receive your refund. For more specific information about the status of your refund after the Illinois Department of Revenue has finished processing it, you can check the Illinois Comptroller's Find Your Illinois Tax Refund System.
Refund Instructions