Estimate Illinois overtime pay with 2026 federal brackets, the 4.95% flat state tax, status-aware payroll taxes, and annualized take-home projections.
Illinois follows the federal FLSA overtime rule: covered non-exempt workers earn 1.5× pay after 40 hours in a workweek. The Illinois Department of Labor also says the state minimum wage is $15.00 per hour, with overtime paid after 40 hours per week at time and one-half.
This calculator turns a single pay period into an annualized planning estimate. It applies the 2026 federal standard deduction and bracket table for the filing status you choose, adds Illinois's flat 4.95% income tax, and layers in employee Social Security, Medicare, and Additional Medicare taxes. It also estimates the current federal overtime deduction for the half-portion of qualified overtime compensation.
Use it to sanity-check a paycheck or compare overtime scenarios, but treat the result as a planning estimate rather than payroll software or a filed return.
Illinois's flat 4.95% tax makes the state side predictable, but federal brackets, payroll taxes, and the current overtime deduction still change take-home pay. This calculator shows the annualized impact of extra hours instead of asking you to guess at withholding percentages.
Regular Pay = min(hours, 40) × Rate Overtime Pay = max(hours − 40, 0) × Rate × 1.5 Annual Gross = Pay Period Gross × Pay Periods Per Year Federal Taxable Income = Annual Gross − 2026 Standard Deduction − Qualified Overtime Deduction Illinois Tax = Annual Gross × 4.95% Payroll Taxes = Social Security + Medicare + Additional Medicare when applicable Net Pay = (Annual Gross − Federal Tax − Illinois Tax − Payroll Taxes) ÷ Pay Periods Per Year
Result: $994.44 weekly net pay / $51,111 annual net
At $24/hr for 48 hours, weekly gross pay is $1,248. Annualized at weekly pay, that is $64,896. After the 2026 single standard deduction, the current qualified-overtime deduction estimate, 2026 federal brackets, Illinois tax, Social Security, and Medicare, the take-home estimate is about $994.44 per week or $51,110.62 per year.
For most covered non-exempt workers, Illinois overtime follows the federal rule: time and a half after 40 hours in a workweek. The state does not replace that standard with a daily overtime rule, so the weekly total is the main trigger.
The calculator annualizes your selected pay period, then applies 2026 federal ordinary-income brackets, the 2026 standard deduction for the chosen filing status, Illinois's flat 4.95% income tax, and employee payroll taxes. It also estimates the current federal overtime deduction so the federal side is closer to current law than a flat withholding guess.
It does not model every tax credit, pretax benefit, local tax edge case, or payroll system detail. If your situation includes unusual deductions, multiple jobs, or other income, use the result as a planning estimate and not as the final number on a tax return or paycheck record.
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This calculator starts with regular pay for the first 40 hours and overtime pay at 1.5× for hours above 40. It then annualizes the selected pay period using the pay frequency, applies the 2026 federal standard deduction and bracket table for the filing status you choose, and estimates the federal overtime deduction based on the half-portion of qualified overtime compensation. The federal estimate uses the current 2026 Social Security wage base, Medicare rate, and Additional Medicare thresholds.
Illinois tax is modeled as a flat 4.95% of gross income, because that is the practical state-level planning assumption for wages. The result is intentionally a planning estimate, not payroll software. It does not attempt to reconstruct every W-4 election, pretax benefit, local withholding rule, or non-wage income source, so treat it as a clear estimate rather than a filing-ready number.
Illinois uses a flat individual income tax rate of 4.95% on net income. That keeps the state portion simpler than in progressive-bracket states.
No. Illinois uses the federal 40-hour workweek rule for overtime: covered non-exempt employees earn time and a half for hours over 40 in a workweek.
Choose the federal filing status you expect to use on your return. It changes the standard deduction, bracket thresholds, and the additional Medicare threshold used in the estimate.
It uses the 2026 Social Security wage base of $184,500, the 6.2% employee Social Security rate, the 1.45% Medicare rate, and the current Additional Medicare thresholds by filing status.
Yes, it includes a planning estimate for the current federal deduction on the half-portion of qualified overtime compensation, capped under the current IRS rules and phased out at higher income levels.
No. It is a planning estimate. Real payroll can differ because of W-4 elections, pretax benefits, local rules, other income, and employer-specific withholding setup.