Illinois Printable Income Tax Forms 76 PDFS
Illinois has a flat state income tax of 4.95% , which is administered by the Illinois Department of Revenue. TaxFormFinder provides printable PDF copies of 76 current Illinois income tax forms. The current tax year is 2021, and most states will release updated tax forms between January and April of 2022.
Printed all of your Illinois income tax forms? Head over to the Federal income tax forms page to get any forms you need for completing your Federal Income Tax return in April.
Illinois Income Tax Form Addresses
Illinois has multiple mailing addresses for different tax forms and other forms of correspondence. Make sure you send your completed tax forms to the correct address - some forms may have a different mailing address specified in the form instructions.
Here are two of the most important Illinois Department of Revenue mailing addresses for tax returns and general correspondence:
Springfield, IL 62726-0001
PO Box 1040
Galesburg, IL 61402-1040
Disclaimer: While we do our best to keep this list of Illinois income tax forms up to date and complete, we cannot be held liable for errors or omissions. Is a form on this page missing or out-of-date? Please let us know so we can fix it!