Complete the U.S. Census Before September 30, 2020 visit
View up to date information on how Illinois is handling the Coronavirus Disease 2019 (COVID-19) from the
State of Illinois Coronavirus Response Site
To register your business you may choose one of the following options:
For more information about who is required to withhold, see
Publication 130, Who Is Required to Withhold Illinois Income Tax.
If you have additional inquiries, you may submit them to the Questions, Comments, or Request form.