Illinois Paycheck Calculator 2026 - Take Home Pay Calculator

Illinois Paycheck Calculator: Calculate Your 2026 Take-Home Pay

Our Illinois Paycheck Calculator helps you estimate your net (take-home) pay after federal and state taxes, FICA (Social Security and Medicare), and pre-tax deductions. Whether you are paid weekly, biweekly, semi-monthly, or monthly, this tool provides a detailed breakdown of your earnings and deductions for the 2026 tax year. Estimate your gross earnings with our Gross Pay Calculator and plan taxes with the Income Tax Calculator.

How Illinois State Income Tax Works

Illinois uses a flat 4.95% individual income tax rate on all taxable income. Unlike states with progressive brackets, everyone pays the same rate regardless of income level. Illinois does not allow a federal standard deduction but does offer a personal exemption of $2,425 per exemption (for the taxpayer, spouse, and each dependent). Retirement income (including Social Security, pension, and IRA distributions) is generally exempt from Illinois tax.

Key features of Illinois state income tax:

Flat 4.95% rate on taxable income
Personal exemption of $2,425 per eligible individual
No standard deduction (only personal exemptions)
Retirement income is generally exempt
No local wage taxes in most municipalities

Federal Tax and FICA Deductions

This calculator applies the 2026 federal income tax brackets based on your filing status. The standard deduction for 2026 is $16,100 for single filers, $32,200 for married filing jointly, and $24,150 for head of household. FICA taxes include Social Security at 6.2%, Medicare at 1.45%, and Additional Medicare at 0.9% for high earners.

Pre-Tax Deductions

Contributions to a traditional 401(k), HSA, and pre-tax health insurance premiums reduce your taxable income. This calculator accounts for these deductions to give you a more accurate take-home pay estimate.

How This Is Calculated

This calculator is based on 2026 IRS federal tax brackets and FICA, plus each state's latest published income-tax schedule.

Sources:

Frequently Asked Questions

What is the Illinois state income tax rate for 2026?

Illinois has a flat 4.95% income tax rate for 2026. Unlike states with progressive tax brackets, all taxable income in Illinois is taxed at this single rate regardless of filing status or income level.

Does Illinois tax retirement income?

Illinois generally exempts retirement income from state income tax. This includes Social Security benefits, pension income, IRA distributions, and 401(k) distributions. The calculator does not apply Illinois tax to retirement income, in accordance with state law.

How does pay frequency affect my Illinois tax withholding?

Your total annual tax liability is determined by your annual income, not how often you are paid. Switching from biweekly to monthly simply divides the same annual take-home into fewer, larger payments. The per-paycheck amount changes but your annual net pay remains the same.

What is the personal exemption in Illinois for 2026?

Illinois offers a personal exemption of $2,425 per eligible individual in 2026. This includes the taxpayer, their spouse (if filing jointly), and each dependent. The exemption is subtracted from your federal adjusted gross income before applying the 4.95% tax rate.

Does Illinois have local or city wage taxes?

Most municipalities in Illinois do not impose a local wage tax. Chicago has a city-level tax, but it applies primarily to businesses (corporate-level), not individual wages. The calculator focuses on state-level income tax.

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Illinois Paycheck Calculator

Illinois Paycheck Calculator: Calculate Your 2026 Take-Home Pay

How Illinois State Income Tax Works

Federal Tax and FICA Deductions

Pre-Tax Deductions

How This Is Calculated

Frequently Asked Questions

Frequently Asked Questions

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