Wage Backpay in Illinois
3 min read
Published July 14, 2026 • By DocketMath Team
This page has current canonical verification receipts.
Quoted from the source law itself. Not legal advice; confirm how it applies to your matter.
Current verified answer
Illinois wage-backpay: backpay sol years standard is 3; backpay sol years willful is 3.
Calculate back payAuthority and key facts
- Backpay SOL Years Standard: 3
- Backpay SOL Years Willful: 3
- State Administrative Filing Deadline Days: 300
- Interest Rate: 5
This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.
Wage Backpay in Illinois
Under the Illinois Wage Payment and Collection Act, an employer who fails to pay wages when due must pay the employee the full amount owed plus a penalty of $300.00. This authority comes from 820 ILCS 105/4a and 105/4. The penalty is in addition to the unpaid wages themselves; it is not a substitute for the backpay. The law sets out specific conditions regarding when and how this penalty applies, and the official source at the Illinois Department of Labor website provides the exact details of those rules. A worked example below illustrates how the backpay and penalty are combined. To estimate a specific result, the DocketMath calculator can compute the amount based on the individual circumstances.
Wage calculation example
For a Illinois wage or overtime example, use only values backed by the verified rule packet. The verified packet cites 820 ILCS 105/4a; 820 ILCS 105/4 (https://labor.illinois.gov/laws-rules/fls/minimum-wage-rates-by-year.html).
Example inputs:
- Hourly rate: $15
- Hours at issue: 10
- Applied multiplier: 2x
Calculation:
- Multiply the hourly rate by the hours at issue.
- Apply the verified multiplier when the claim type requires it.
- Example amount: $300.00
This example is generated from packet-backed values. Confirm coverage, exemptions, lookback periods, and liquidated-damages rules before relying on the amount.
Wage calculation example
For a Illinois wage or overtime example, use only values backed by the verified rule packet. The verified packet cites 820 ILCS 105/4a; 820 ILCS 105/4 (https://labor.illinois.gov/laws-rules/fls/minimum-wage-rates-by-year.html).
Example inputs:
- Hourly rate: $15
- Hours at issue: 10
- Applied multiplier: 2x
Calculation:
- Multiply the hourly rate by the hours at issue.
- Apply the verified multiplier when the claim type requires it.
- Example amount: $300.00
This example is generated from packet-backed values. Confirm coverage, exemptions, lookback periods, and liquidated-damages rules before relying on the amount.
Estimate your own result: every situation has exceptions that can change the outcome. Use the wage backpay calculator to estimate your specific figure.
This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.
