Illinois Paycheck Calculator

Estimate your 2025 take-home pay after federal and IL state taxes.

Estimated Paycheck Summary

Gross Pay $0.00
Federal Income Tax $0.00
Illinois State Tax (4.95%) $0.00
Social Security (6.2%) $0.00
Medicare (1.45%) $0.00
Net Pay (Take-Home) $0.00

How to Use Our Paycheck Calculator

Our free and easy-to-use paycheck calculator helps you estimate your take-home pay. Simply follow these steps:

  1. Enter Gross Pay: Input your total salary or wages per pay period before any taxes or deductions are taken out.
  2. Select Pay Frequency: Choose how often you get paid (e.g., weekly, bi-weekly, monthly). This ensures the tax calculations are accurate for your pay schedule.
  3. Choose Filing Status: Select your tax filing status (Single, Married Filing Jointly, etc.) as indicated on your IRS Form W-4.
  4. Add Deductions (Optional): Enter any pre-tax deductions like 401(k) or health insurance contributions to see how they impact your net pay.

The calculator will instantly estimate your federal and state tax withholdings, other deductions, and your final net pay amount.

Understanding Your Paycheck

Your paycheck can seem complex, but it boils down to a few key components. Here’s a breakdown of the terms you’ll see in our calculator and on your pay stub.

Gross Pay vs. Net Pay

Gross Pay is the total amount of money you earn before any deductions. Net Pay, or "take-home pay," is the amount you actually receive after all taxes, withholdings, and deductions have been subtracted.

Federal & State Income Tax

This is the money withheld from your paycheck by the federal and state governments to pay for public services. The amount is determined by your income level, pay frequency, and the information you provide on your Form W-4.

FICA (Federal Insurance Contributions Act)

FICA is a U.S. federal payroll tax that funds two major programs:

  • Social Security: For 2024, the employee tax rate is 6.2% on earnings up to the annual limit of $168,600.
  • Medicare: The employee tax rate is 1.45% on all earnings.

Pre-Tax vs. Post-Tax Deductions

Pre-tax deductions are taken from your gross pay before taxes are calculated, which lowers your taxable income. Common examples include contributions to a 401(k) retirement plan or health insurance premiums.

Post-tax deductions are taken out after taxes have already been calculated. Examples include Roth 401(k) contributions or wage garnishments.

Frequently Asked Questions (FAQ)

Is this paycheck calculator 100% accurate?

This tool provides a close estimate of your take-home pay based on the information you provide. However, it does not account for all possible factors, such as local taxes, specific company benefits, or complex wage garnishments. Your actual pay stub is always the most accurate source.

How do I change my tax withholding?

To change your tax withholding, you will need to submit a new Form W-4 to your employer's HR or payroll department. You may want to do this if you get married, have a child, or get a second job.

Does this calculator work for hourly employees?

Yes. If you are an hourly employee, simply multiply your hourly rate by the number of hours you worked during the pay period to find your "Gross Pay," then enter that amount into the calculator.

Why is my take-home pay different from what I expected?

Discrepancies can arise from several factors: changes in your benefit contributions (like health insurance), one-time bonuses or commissions being taxed at a supplemental rate, or adjustments made on your W-4 form. Always check your official pay stub for a detailed breakdown.

Disclaimer: The information provided by this calculator is for estimation and illustrative purposes only. It is not intended as financial or tax advice. Please consult with a qualified professional for advice tailored to your specific situation.