Free Illinois (IL) Financial Calculators

Illinois (IL) has a top marginal income tax rate of 4.95%, which applies to all taxable income as a flat rate. Understanding your effective tax rate is important for budgeting and financial planning in Illinois.

Housing costs: The median home price in Illinois is $250,000 with an effective property tax rate of 2.07%.At 2.07%, property taxes in Illinois are above the national average of approximately 1.1%. Homeowners should factor these costs into their monthly housing budget.Use our mortgage calculator to estimate your full monthly payment including property taxes and homeowners insurance.

Income and cost of living: The median household income in Illinois is $72,200. With a cost of living index of 93 (national average = 100), Illinois is7% below the national average, meaning your dollars go further for everyday expenses like groceries, utilities, and transportation.

Tools for Illinois residents: Use the calculators above to estimate your income taxes, mortgage payments, auto insurance costs, and more using Illinois-specific data.We also have financial tools for 5 cities in Illinois, including Chicago, Aurora, Naperville, Joliet.All calculators are free to use with no account required, updated with current rates and data for the 2026 tax year.