Serving the St. Louis Metro Area Since 1996
FAQ - Illinois Personal (Form IL-1040) Income Tax Return: (Information is current as of February 1, 2016)
Where is my Illinois State Refund?
How to make a payment to Illinois Department of Revenue? Four options.
Illinois Department of Revenue
Springfield, IL 62726-001
In the MEMO area of your check, include the SSN of the Primary taxpayer and the TAX YEAR for which this check is to be applied.
What is the Illinois Individual Income Tax Rates?