Illinois Unpaid Wages Demand Letter
820 ILCS 115 (Illinois Wage Payment and Collection Act)
next scheduled payday
next scheduled payday
2% per month penalty on amount owed
When your employer fails to pay wages you've earned, Illinois law gives you real tools to fight back. Under 820 ILCS 115 (Illinois Wage Payment and Collection Act), employers must deliver your final paycheck by next scheduled payday if you were terminated, or by next scheduled payday if you resigned. These deadlines aren't suggestions — missing them can make the employer liable for additional penalties on top of the wages owed.
A demand letter is almost always the right first step. It formally documents what you're owed, cites the specific Illinois statute your employer violated, and gives them a deadline to pay or respond. Many employers — especially small businesses — pay promptly once they receive a professionally formatted legal demand. Even if yours doesn't, the letter becomes critical evidence if you need to escalate to a labor board complaint or small claims court.
DemandFast generates a Illinois-specific demand letter that cites 820 ILCS 115 (Illinois Wage Payment and Collection Act), states the exact amount owed, and demands payment within a reasonable period. The letter is formatted for certified mail so you have proof it was delivered. If your employer ignores it, your next step is a formal complaint with the Illinois Department of Labor.
Overtime note: Federal FLSA overtime applies. If your wage dispute involves overtime, note this in your letter and include the calculation of hours worked.
Frequently Asked Questions
How quickly must an employer pay final wages in Illinois?
Under 820 ILCS 115 (Illinois Wage Payment and Collection Act), Illinois employers must pay final wages by next scheduled payday if you were fired, and by next scheduled payday if you quit. Failing to pay on time can expose the employer to additional penalties.
What penalties can I claim for unpaid wages in Illinois?
2% per month penalty on amount owed. A written demand letter documents your claim and gives your employer a formal opportunity to pay before you escalate to the Illinois Department of Labor.
Should I send a demand letter before filing a wage complaint in Illinois?
A demand letter is often the fastest path to resolution. It puts your employer on formal notice that you know your rights, establishes a paper trail, and frequently results in payment without the need to file a formal complaint. If your employer ignores the letter, you can file with the Illinois Department of Labor.