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.
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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.
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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?
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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.
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The latest IRS and Census data show that people and businesses favor states with low and structurally sound tax systems, which can impact the state’s economic growth and governmental coffers.
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To alleviate the regressive impact on wireless consumers, states should examine their existing communications tax structures and consider policies that transition their tax systems away from narrowly based wireless taxes and toward broad-based tax sources.
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Short FormWhat do The Rolling Stones, NFL star Tyreek Hill, and Maryland millionaires have in common? They all moved because of taxes.
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In recognition of the fact that there are better and worse ways to raise revenue, our Index focuses on how state tax revenue is raised, not how much. The rankings, therefore, reflect how well states structure their tax systems.
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In addition to the federal estate tax, with a top rate of 40 percent, some states levy an additional estate or inheritance tax.
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The differences in purchasing power can be large and they have significant implications for the relative impact of economic and tax policies across the United States.
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The state EV taxation landscape reflects the evolving transportation sector and the pressing need to address both fiscal gaps in road funding and environmental concerns.
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Any move to repeal the cap or enhance the deduction would disproportionately benefit higher earners, making the tax code more regressive.
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Property taxes are the primary tool for financing local governments and generate a significant share of state and local revenues.
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Policymakers at all levels of government should avoid the pitfalls of incentives. Instead, they should focus on creating a more efficient, neutral, and structurally sound tax code to the benefit of all types of business investment.
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