We last updated Illinois Form Subgroup Schedule (UB) in January 2024 from the Illinois Department of Revenue. This form is for income earned in tax year 2023, with tax returns due in April 2024. We will update this page with a new version of the form for 2025 as soon as it is made available by the Illinois government.
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-PTR | Property Tax Rebate Form |
| Form IL-1040 | Individual Income Tax Return Tax Return |
| Schedule ICR | Illinois Tax Credits Tax Credit |
| Form IL-1040-V | Payment Voucher for Individual Income Tax Voucher |
| Form Schedule IL-WIT | Illinois Income Tax Withheld |
View all 76 Illinois Income Tax Forms
Disclaimer: While we do our best to keep Form Subgroup Schedule (UB) 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 Is this form missing or out-of-date?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!
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