How does Illinois’s tax code compare? Illinois has a flat 4.95 percent individual income tax rate. Illinois also has a 9.50 percent corporate income tax rate. Illinois has a 6.25 percent state sales tax rate, a 4.75 percent max local sales tax rate, and an average combined state and local sales tax rate of 8.82 percent. Illinois’s tax system ranks 36th overall on our 2023 State Business Tax Climate Index.
Each state’s tax code is a multifaceted system with many moving parts, and Illinois is no exception. The first step towards understanding Illinois’s tax code is knowing the basics. How does Illinois collect tax revenue? Click the tabs below to learn more! You can also explore our state tax maps, which are compiled from our annual publication, Facts & Figures: How Does Your State Compare?
Get facts about taxes in your state and around the U.S.
Twenty-one states and D.C. had significant tax changes take effect on January 1, including five states that cut individual income taxes and four states that saw corporate income tax rates decrease.
17 min read
States are unprepared for the ongoing shift to remote and flexible work arrangements, or for the industries and activities of today, to say nothing of tomorrow. In some states, moreover, existing tax provisions exacerbate the impact of high inflation and contribute to the supply chain crisis.
40 min read
The pandemic has accelerated changes in the way we live and work, making it far easier for people to move—and they have. As states work to maintain their competitive advantage, they should pay attention to where people are moving, and try to understand why.
5 min read
While there are many ways to show how much is collected in taxes by state governments, our State Business Tax Climate Index is designed to show how well states structure their tax systems and provides a road map for improvement.
169 min read
Under the House Democrats’ tax plan, companies in 21 states and D.C. would face a higher corporate tax rate than in any country in the OECD.
1 min read
The six counties with the highest median property tax payments all have bills exceeding $10,000—Bergen, Essex, and Union Counties in New Jersey, and Nassau, Rockland, and Westchester counties in New York. All six are near New York City, as is the next highest, Passaic County, New Jersey ($9,881).
3 min read
It is important to understand how the SALT deduction’s benefits have changed since the SALT cap was put into place in 2018 before repealing the cap or making the deduction more generous. Doing so would disproportionately benefit higher earners, making the tax code more regressive.
6 min read
Neither Anchorage, Alaska, nor Portland, Oregon, impose any state or local sales taxes. Honolulu, Hawaii, has a low rate of 4.5 percent and several other major cities, including Milwaukee and Madison, Wisconsin, keep overall rates modest.
13 min read
Thirteen states have notable tax changes taking effect on July 1, 2021, which is the first day of fiscal year (FY) 2022 for every state except Alabama, Michigan, New York, and Texas. Individual and corporate income tax changes usually take effect at the beginning of the calendar year for the sake of maintaining policy consistency throughout the tax year, but sales and excise tax changes often correspond with the beginning of a fiscal year.
11 min read