Illinois has a flat 4.95 percent individual income tax rate. Illinois has a 9.50 percent corporate income tax rate (7 percent plus a 2.5 percent personal property replacement tax), a 6.25 percent state sales tax rate, and an average combined state and local sales tax rate of 8.96 percent. Illinois has a 1.88 percent effective property tax rate on owner-occupied housing value. Illinois has an estate tax. Illinois’s gas tax is 66.4 cents per gallon, and its cigarette excise tax is $2.98 per pack of 20 cigarettes.
Illinois raises tax revenue primarily through property taxes (32.3 percent of total state and local tax revenue), individual income taxes (20.7 percent), and other taxes (20.0 percent). Illinois collects $8,339 in state and local tax collections per capita, carries $10,363 in state and local debt per capita, and has a 54 percent funded ratio of public pension plans. Illinois’s tax system ranks 38th overall on the 2026 State Tax Competitiveness Index.
Each state’s tax code is a multifaceted system with many moving parts, and Illinois is no exception. Use the tabs below to compare Illinois taxes with other states and to see how Illinois raises tax revenue. You can also browse our tax maps, which are compiled from our annual publication, Facts & Figures 2026: How Does Your State Compare?
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The State Tax Competitiveness Index enables policymakers, taxpayers, and business leaders to gauge how their states’ tax systems compare. While there are many ways to show how much state governments collect in taxes, the Index evaluates how well states structure their tax systems and provides a road map for improvement.
122 min read
Facts & Figures serves as a one-stop state tax data resource that compares all 50 states on over 40 measures of tax rates, collections, burdens, and more.
2 min read
Individual income taxes are a major source of state government revenue, accounting for more than a third of state tax collections. How do income taxes compare in your state?
9 min read
Retail sales taxes are an essential part of most states’ revenue toolkits, responsible for nearly a quarter of combined state and local tax collections.
18 min read
Forty-four states levy a corporate income tax, with top rates ranging from a 2 percent flat rate in North Carolina to an 11.5 percent top marginal rate in New Jersey. Four states—Georgia, Nebraska, North Carolina, and Pennsylvania—reduced their corporate income tax rates effective January 1, 2026.
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Property taxes are the primary tool for financing local governments. While no taxpayers in high-tax jurisdictions will be celebrating their yearly payments, property taxes are largely rooted in the benefit principle of taxation: the people paying the property tax bills are most often the ones benefiting from the services.
9 min read
After a whirlwind of cuts and reforms in 2021, it looks like 2022 might be an even bigger year for state tax codes. Republican and Democratic governors alike used their annual State of the State addresses to call for tax reform, and there is already serious momentum from state lawmakers nationwide to get the job done.
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Facts & Figures serves as a one-stop state tax data resource that compares all 50 states on over 40 measures of tax rates, collections, burdens, and more.
2 min read
The FDA’s expected announcement of a national ban on menthol-flavored cigarettes and cigars with a characterizing flavor would carry significant revenue implications for both the federal government and state governments, with likely limited benefits in smoking cessation.
6 min read
Unlike other studies that look solely at tax burdens, the State Business Tax Climate Index measures how well or poorly each state structures its tax system. It is concerned with the how, not the how much, of state revenue, because there are better and worse ways to levy taxes.
4 min read
Individual income taxes are a major source of state government revenue, accounting for more than a third of state tax collections:
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While many factors influence business location and investment decisions, sales taxes are something within policymakers’ control that can have immediate impacts.
12 min read
Forty-four states levy a corporate income tax. Rates range from 2.5 percent in North Carolina to 11.5 percent in New Jersey.
8 min read
Well-designed Net Operating Loss (NOL) provisions benefit the economy by smoothing business income, which mitigates entrepreneurial risk and helps firms survive economic downturns.
24 min read
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.
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