Illinois Tax Bracket 2025

Illinois Tax Bracket 2025. Unlike the federal government and many other states, illinois has no tax brackets that increase rates with income. For comparison purposes, however, your illinois tax bracket is the tax bracket in which your last earned dollar in any given tax period falls.

This free webinar provides information about form changes for individual income tax, business income tax, withholding income tax, and sales tax. Our calculator has recently been updated to include both the latest federal tax.