Illinois — Illinois Income Tax Instructional Booklet
More about the Illinois Income Tax Instructions
We last updated Illinois Income Tax Instructions in January 2019 from the Illinois Department of Revenue. This form is for income earned in tax year 2019, with tax returns due in April 2020. We will update this page with a new version of the form for 2021 as soon as it is made available by the Illinois government.
Other Illinois Individual Income Tax Forms:
In addition to information about Illinois' income tax brackets, Tax-Brackets.org provides a total of 76 Illinois income tax forms, as well as many federal income tax forms. Here's a list of some of the most commonly used Illinois tax forms:
|Form Code||Form Name|
|Form IL-1040||Individual Income Tax Return|
|Schedule ICR||Illinois Tax Credits|
|Form IL-1040-ES||Estimated Income Tax Payments for Individuals|
|Form IL-1040-V||Payment Voucher for Individual Income Tax|
|Income Tax Instructions||Illinois Income Tax Instructional Booklet|
Disclaimer: While we do our best to keep Income Tax Instructions up to date and complete on Tax-Brackets.org, we cannot be held liable for errors or omissions. Is this form missing or out-of-date? Please let us know so we can fix it!