Illinois Overtime Calculator
Updated November 2026 · Free · No sign-up
Calculate Illinois overtime — Weekly 40 + One Day Rest in Seven Act. Weekly 40 at 1.
Quick answer: Illinois overtime: Weekly 40 + One Day Rest in Seven Act. Weekly 40 at 1.5x plus ODRISA: 24 hours of rest per week and meal-break rights with penalties.
The Illinois Rule
Weekly 40 + One Day Rest in Seven Act. Weekly 40 at 1.5x plus ODRISA: 24 hours of rest per week and meal-break rights with penalties.
Worked Examples
Example 1 — weekly OT. $22/hour, 46 hours: 6 OT hours × $33 = $198 premium on top of straight time — the federal baseline that applies in every state.
Example 2 — the daily dimension. A 12-hour day in a 38-hour week earns no OT here — only the weekly 40 counts, however long the day.
Example 3 — the regular rate. Nondiscretionary bonuses and shift differentials fold into the rate BEFORE the 1.5x — a $22 base with $2 differential makes OT $36, not $33; systematic base-only OT is recoverable back pay.
Who Is Exempt in Illinois
Salary alone exempts no one: the duties tests (executive/administrative/professional) plus the salary threshold decide — check the line. Misclassified salaried staff recover 2-3 years of OT.
Claims and Records
Keep personal hour logs (courts accept reasonable employee reconstructions), compare payslips against this math, and file with the state labor agency or federal DOL — FLSA adds liquidated-damages doubling. For daily-rule comparisons, California remains the strictest (its ladder here).
Frequently Asked Questions
When is overtime owed in Illinois?
Weekly 40 + One Day Rest in Seven Act — at 1.5x the regular rate including differentials and nondiscretionary bonuses.
Does Illinois have daily overtime?
No — only the weekly 40-hour federal trigger applies; long days alone earn nothing extra.
Can salaried employees get overtime in Illinois?
Yes if below the applicable salary threshold or failing the duties tests — titles don’t decide; misclassification claims recover years.
What goes into the overtime rate?
The regular rate: base plus shift differentials, nondiscretionary bonuses, and commissions for the week — then × 1.5.
How do I claim unpaid overtime?
Document hours, demand in writing, then the state labor agency or US DOL — 2-3 year lookbacks plus federal liquidated damages.
✓ Formula verified • Last updated: November 3, 2026