Free Illinois Hourly Paycheck Calculator

The salary calculator will help you automatically calculate your annual salary, weekly salary, and also the number of hours you work per week, the frequency of payments, the taxes of the different states where you are located, in addition to showing you the salary breakdown, it will also provide you with charts to access, all you need to do is to fill out the calculator below to get your answer.

All-in-One Paycheck Calculator

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Used to calculate yearly salary if only hourly wage is given How often you receive your paycheck Used to apply state income tax (default flat rate per state) % of income contributed to retirement savings (optional) Health, dental, or other deductions

How We Ensure Your Calculations Are Accurate at HnKey

Verified Data:In order to ensure that the accuracy of our calculations is our main priority, our team frequently checks the tax information, and policies of the IRS to review our calculations in a timely manner.

Regularly Updated:It is important to note that these data, not our guesses, come from official sources such as the IRS and state tax offices.

Disclaimer: This tool is for estimation purposes only and does not constitute financial advice. Please consult a qualified professional for personalized financial guidance.

Calculating your hourly paycheck in Illinois involves understanding your gross pay, applicable taxes, and other deductions. This guide provides a clear overview of the key factors affecting your take-home pay, including federal and state taxes, how they are calculated, and official resources to ensure accuracy.

Gross Pay Calculation

Your gross pay is determined by multiplying your hourly wage by the number of hours worked in a pay period. For example, if you earn $20 per hour and work 40 hours per week, your weekly gross pay is $ pay, if applicable, is calculated at times your regular rate for hours worked over 40 in a workweek, as mandated by the Fair Labor Standards Act (FLSA).

Federal Income Tax

Federal income tax is withheld from your paycheck based on your earnings, filing status (e.g., single, married filing jointly), and the number of allowances claimed on your IRS Form W- IRS uses a progressive tax system, meaning higher earnings are taxed at higher rates. For 2025, federal tax brackets range from 10% to 37%, depending on your taxable income. The IRS Publication 15 provides detailed withholding tables employers use to calculate federal tax deductions. To estimate your withholding, you can use the IRS Tax Withholding Estimator.

Illinois State Income Tax

Illinois applies a flat state income tax rate of on all taxable income, as outlined by the Illinois Department of Revenue. Unlike federal taxes, this rate does not vary by income level. For example, if your gross pay is $800 per week, the state tax withheld would be approximately $ ($800 × Exemptions or credits, such as those for dependents, may reduce your taxable income, as detailed in the IL-1040 Instructions.

Other Payroll Taxes

In addition to income taxes, your paycheck will reflect deductions for Social Security and Medicare, known as FICA taxes. For 2025, the Social Security tax rate is on income up to $168,600, and the Medicare tax rate is on all earnings, with an additional for high earners (over $200,000 for single filers). These rates are set by the Social Security Administration. For a $800 weekly paycheck, FICA deductions would total approximately $ ($ for Social Security + $ for Medicare).

Additional Deductions

Your employer may withhold other amounts, such as contributions to retirement plans (e.g., 401(k)), health insurance premiums, or union dues. These vary by employer and your elections. Illinois does not have local income taxes, but certain municipalities may impose other payroll-related fees, though these are rare. Check with your employer or the Illinois Department of Revenue for specifics.

How to Estimate Your Net Pay

To calculate your net pay (take-home pay), start with your gross pay and subtract federal and state income taxes, FICA taxes, and any other deductions. For accuracy, consider your filing status, exemptions, and any pre-tax contributions. Tools like the calculator provided on this page can simplify this process by automating the math based on your inputs.

Official Resources and Tips

For precise calculations, refer to your pay stub, which details all withholdings. The Illinois Department of Revenue offers guidance on state tax obligations, while the IRS website provides federal tax resources. Review your W-4 annually, especially after major life events like marriage or having a child, to ensure accurate withholding. Consulting a tax professional can also help if your financial situation is complex.

Using a reliable paycheck calculator tailored for Illinois ensures you understand your earnings and deductions clearly, helping you plan your finances effectively.

The above information is reviewed by our team of tax experts, all of them have an average of about 10 years of experience in the U.S. tax, if you have any questions, you can submit the form to us, our experts will be within 24 hours, reply to you.

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