Illinois Biweekly Pay Calculator
Calculate your Illinois take-home pay for every two-week pay period. Illinois has a flat state income tax rate of 4.
✓ 26 pay periods per year
✓ IL tax: 4.95% flat rate
✓ Per-paycheck net shown
Illinois Paycheck Calculator
2026 tax year · estimate
$
Federal Withholding
Biweekly Pay in Illinois
Biweekly pay means you receive a paycheck every two weeks—26 times per year. Illinois has a flat state income tax rate of 4.95% applied to all taxable income, regardless of income level.
Biweekly Gross Pay by Salary
| Annual Salary | Biweekly Gross | Monthly Equivalent |
|---|---|---|
| $40,000 | $1,538.46 | $3,333 |
| $50,000 | $1,923.08 | $4,167 |
| $65,000 | $2,500.00 | $5,417 |
| $80,000 | $3,076.92 | $6,667 |
Biweekly vs. Semi-Monthly Pay
Biweekly = every 2 weeks (26 paychecks/year). Semi-monthly = 1st and 15th of each month (24 paychecks/year). Biweekly paychecks are slightly smaller but you get 2 extra per year. This makes a significant difference for budgeting and tax withholding calculations.
Use the calculator above to see your exact Illinois biweekly take-home pay.
Frequently Asked Questions
How do I calculate biweekly pay in Illinois?▾
Divide your annual salary by 26, then subtract federal tax, state tax, FICA, and deductions.
How many biweekly paychecks per year?▾
26 biweekly pay periods per year (52 weeks ÷ 2).