Yes — if your employer failed to pay you overtime, you can sue under both federal and Illinois law. The Fair Labor Standards Act (FLSA) and the Illinois Minimum Wage Law (820 ILCS 105/) both require that eligible employees receive at least 1.5 times their regular hourly rate for every hour worked over 40 in a workweek. Illinois law provides a three-year lookback period — longer than the FLSA’s two-year window — and allows you to recover double damages plus attorney’s fees.
Who Is Entitled to Overtime Pay in Illinois?
Under the FLSA and Illinois Minimum Wage Law, most hourly and non-exempt salaried employees are entitled to overtime. You are likely entitled to overtime unless your employer has properly classified you as “exempt.” Common exemptions include:
Executive employees who manage a department, direct two or more employees, and earn at least $684 per week (the current federal salary threshold).
Administrative employees who perform office work directly related to management or business operations and exercise independent judgment on significant matters.
Professional employees who work in a field requiring advanced knowledge — such as law, medicine, engineering, or accounting — and earn at least $684 per week.
These are the “white collar” exemptions. Many employers misapply them — labeling employees as managers or professionals without meeting the legal tests — specifically to avoid paying overtime. Misclassification is one of the most widespread forms of wage theft in Illinois.
What Is the Overtime Rate in Illinois?
Overtime must be paid at one-and-one-half times (1.5x) your regular rate of pay for all hours worked beyond 40 in a single workweek. This applies to each workweek independently — you cannot average hours across multiple weeks.
The “regular rate” includes more than just your base hourly wage. It must incorporate most forms of additional compensation you receive, including non-discretionary bonuses, shift differentials, and commissions, before the 1.5x multiplier is applied.
How Far Back Can I Recover Unpaid Overtime in Illinois?
The statute of limitations for unpaid overtime claims is a key advantage of filing under Illinois state law. Under the Illinois Minimum Wage Law (820 ILCS 105/12), you have three years from the date of each violation to file a claim. The federal FLSA provides only two years (three years for willful violations).
Filing under Illinois law allows you to recover up to three years of unpaid overtime — meaning if your employer has been shortchanging you for years, the lookback period can make the damages substantial.
What Damages Can I Recover in an Illinois Unpaid Overtime Lawsuit?
Illinois law is particularly employee-friendly when it comes to overtime damages. Under 820 ILCS 105/12, successful claimants are entitled to:
All unpaid overtime wages — the full amount you should have been paid for every overtime hour worked over the lookback period.
Punitive damages equal to 2% of the underpaid wages per month that the wages remained unpaid — which can significantly increase the total recovery the longer the employer delayed payment.
Attorney’s fees and court costs — meaning you typically pay nothing upfront; your attorney is paid from the recovery.
Under the FLSA, you may also be entitled to “liquidated damages” equal to 100% of the unpaid overtime amount, effectively doubling your recovery in many cases.
Can My Employer Retaliate Against Me for Filing an Overtime Claim?
No. Both the FLSA and the Illinois Minimum Wage Law prohibit retaliation against employees who file wage complaints, participate in investigations, or exercise their rights to unpaid wages. If your employer fires, demotes, reduces your hours, or otherwise punishes you for pursuing an overtime claim, you have an additional legal claim for retaliation.
What Other Illinois Wage Laws Should I Know About?
The Illinois Wage Payment and Collection Act (IWPCA, 820 ILCS 115/) provides additional protections, requiring employers to pay wages on a regular schedule and prohibiting unlawful deductions. If your employer is deducting money from your paycheck without authorization — beyond taxes and legally required withholdings — that may be a separate violation of the IWPCA.
Frequently Asked Questions
My employer says I am salaried and not entitled to overtime — is that true?
Not necessarily. Being salaried does not automatically exempt you from overtime. You must also meet the duties tests for executive, administrative, or professional exemptions AND earn at least the required salary threshold. Many employees are mislabeled as “exempt” when they legally qualify for overtime. An attorney can review your job duties and determine your correct classification.
Can I file an unpaid overtime claim if I am an independent contractor?
If you are a true independent contractor, you are not covered by the FLSA or Illinois overtime laws. However, many workers labeled as “independent contractors” are actually employees under the law — a determination made by examining the economic reality of the relationship, not just what the contract says. Misclassification as an independent contractor to avoid overtime is illegal.
What is the three-year lookback period for Illinois overtime claims?
Under Illinois law, you can recover unpaid overtime for the three years preceding your claim. For example, if you file a claim today, you can seek wages owed going back three years. Each week that unpaid overtime occurred within that window is recoverable.
Can I file an overtime claim on behalf of other employees at my company?
Yes. Under the FLSA, wage claims can proceed as “collective actions” where similarly situated co-workers join together. Under Illinois law, class action lawsuits are also available. Group litigation is often more efficient and increases leverage against employers who have underpaid many workers.
What should I do if I think my employer owes me overtime pay?
Document your hours — keep personal records of the time you actually worked, especially if your employer’s timekeeping system doesn’t capture all your hours. Gather pay stubs and any written communications about your schedule or pay. Then contact an employment attorney to evaluate your claim before the three-year window closes.
Contact Atlas Law Center for a free consultation at (630) 394-6350 (Employment Law). Our attorneys fight for Illinois workers who have been denied the overtime pay they earned.