Illinois overtime calculator
A free Illinois overtime calculator. Illinois counts overtime by the week, so type the hours for each day and the hourly rate to see the pay for the week.
Illinois requires time and a half of the regular rate for hours worked over 40 in a workweek. The state FAQ sets the rule by the workweek.
Gross pay, before tax. Rule from the Illinois Department of Labor (labor.illinois.gov), checked 31 October 2026. Exemptions and special cases are not applied here; check the source before relying on this.
- Regular hours
- 40 hours ($800.00)
- Overtime hours, time and a half
- 10 hours ($300.00)
Nothing you type here is saved or sent anywhere.
What the illinois overtime calculator works out
Most US states follow the federal rule: overtime after 40 hours in a week. Illinois sets overtime by the workweek, with no daily limit. This calculator adds up one week of hours and pays the hours past 40 at time and a half.
How it is calculated
Add up the week
Add the hours worked on each day of the workweek. Every day counts the same; there is no daily limit.
Split at the weekly limit
The first 40 hours are regular hours. Hours past 40 in the week are overtime at time and a half.
Worked example
At $20 an hour: five days of 10 hours make 50 hours. The first 40 are regular, the last 10 are overtime. Pay is 40 x $20 = $800, plus 10 x $30 = $300: $1,100 for the week.
Know the hours before you pay them
Wrkbase records hours as people work: attendance logs sign-in, breaks and sign-off for each day, and a task timer starts when a task moves to In progress. Both are on the Free plan, for up to 5 people.
See attendanceGood to know before you rely on it
When is overtime owed in Illinois?
Illinois requires time and a half of the regular rate for hours worked over 40 in a workweek. The state FAQ sets the rule by the workweek.
What if my employer pays double time?
The Illinois Department of Labor says an employer must honor a policy that pays a higher rate, such as double time. This calculator applies time and a half only, so add the difference by hand if your employer pays more.
Does this cover every case?
No. It applies the weekly rule to hourly pay. Exemptions, alternative work schedules, and rules for particular industries or a seventh day of work in a row are not applied. Check the state labor office page linked above.
Does Wrkbase calculate overtime pay?
Daily overtime, yes, on the Team plan. Hours past a daily threshold you set are paid at one multiplier, 1.5 times by default. It does not apply weekly thresholds, double time or any state rule, so use this calculator for the full amount and add the difference to the pay run as a bonus.