What are the income tax rates in Illinois?

Asked 2 years ago
Illinois has a flat income tax rate for individual taxpayers. As of my last knowledge update in October 2023, the income tax rate for individuals is set at 4.95 percent of their taxable income. It is important to note that this rate applies uniformly, meaning that all taxpayers, regardless of their income level, pay the same percentage on their taxable income. For corporations, the state imposes a different rate. The corporate tax rate is 9.5 percent on the net income of the corporation. Additionally, there is a Personal Property Replacement Tax that corporations and other business entities must pay. This tax amounts to 2.5 percent of their net income. Illinois also offers various tax credits and exemptions that can help reduce the overall tax burden for qualifying individuals and businesses. Tax credits may include those for property taxes, education expenses, and various other areas that can alleviate some of the tax responsibilities. It is essential for taxpayers to stay informed about any changes in legislation that may affect these rates, as state tax policies can evolve. For the most current and precise information regarding tax rates, deductions, and credits, it is advisable to refer to the official website of the Illinois Department of Revenue. This site provides a wealth of resources that can assist individuals and businesses in understanding their tax obligations and options.
Christian Allen is the editor / author responsible for this content.
Answered Jun 30, 2025

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