Salary Transparency Laws in Illinois: What Employers Must Disclose

Illinois's Salary Transparency Act, codified primarily in 820 ILCS 112/3, is significantly stronger than federal law because it affirmatively requires salary range disclosure rather than merely prohibiting discrimination. The law applies to all employers with 15 or more employees operating in Illinois, including private companies, nonprofits, and public sector employers. Illinois law requires salary ranges to be disclosed in all job postings (online, print, or otherwise), whether the posting is made internally or externally.

For existing employees, employers must provide wage range information for the employee's current position and any other position the employee applies for, within 7 business days of a written request. The wage range must be based on the employer's reasonable estimate of the compensation that would be paid to a new hire or existing employee performing the same role. Unlike federal law, which focuses on sex-based discrimination, Illinois's law applies broadly to all employees regardless of protected class, though it was designed partly to address gender pay gaps.

Illinois also prohibits retaliation against employees who request wage information or disclose their own wages (820 ILCS 112/3(d)). The law is enforced by the Illinois Department of Labor and through private lawsuits. An employer that violates the disclosure requirement is liable for liquidated damages of $500 to $1,000 per violation per employee, plus reasonable attorney's fees and costs. This damages framework is separate from and potentially more generous than federal EPA remedies in some cases.

The Illinois Salary Transparency Act contains limited exceptions. First, the law does not require disclosure of benefits, bonuses, equity, or commission structure—only the base wage or salary range. Second, independent contractors and certain categories of workers may fall outside the definition of 'employee' under Illinois law, though the statute defines 'employee' broadly to include most workers on a payroll.

Third, the law applies only to positions that will be performed, at least in part, in Illinois. A position based entirely outside Illinois with no Illinois duties would not trigger the disclosure requirement. Fourth, small employers with fewer than 15 employees are exempt from the posting requirement, though they remain subject to the equal pay laws under 820 ILCS 112/1.

Employers may also argue that providing wage ranges creates internal pay disputes or that ranges are genuinely difficult to estimate for highly specialized roles. However, Illinois courts have not recognized a broad business-necessity exception. Employers must maintain reasonable wage ranges and update them regularly; stale or unreasonably wide ranges may invite challenge. Additionally, the law does not prevent employers from paying above or below the posted range, provided the actual wage paid complies with minimum wage and equal pay requirements. The Act also does not override confidentiality agreements that were lawfully in place before the law's effective date, but employers cannot enforce new wage secrecy agreements going forward.

**Step 1: Document Everything.** Collect copies of all job postings (online, internal, email, print) for positions you applied for or held. Note the date each posting was published. Screenshot or photograph postings before they are removed, as they may be taken down after hiring. Save all internal communications with HR or hiring managers about salary. Document the date you requested wage information in writing (email is acceptable) and keep a copy of that request. Note the date you received (or failed to receive) the employer's response. Record any adverse employment action taken after you requested wage disclosure, such as termination, demotion, reduced hours, or negative performance reviews—timing matters for retaliation claims.

**Step 2: Use Your Internal Complaint Process.** Before filing externally, submit a written request for wage range information to your HR department or manager if you have not already done so. Retain a dated copy of this request (send it via email to create proof of delivery). Give the employer 7 business days to respond. Document any non-response or inadequate response. If you believe the employer has violated the law, file an internal complaint with HR, documenting the violation clearly: what wage information was not disclosed, when you requested it, and the date of non-response. Keep records of any meeting notes or responses from HR. This step may prompt the employer to comply and creates evidence of your good-faith attempt to resolve the issue internally, which strengthens any later legal claim and demonstrates that retaliation (if it occurs) was in response to your assertion of rights.

**Step 3: File with the Illinois Department of Labor.** The Illinois Department of Labor (IDOL) is the primary administrative enforcement agency for the Salary Transparency Act. You can file a wage claim or complaint at: www.cyberdriveillinois.com/departments/labor or call 217-782-9077. However, note that Illinois law also permits private lawsuits directly in court without exhausting administrative remedies first (820 ILCS 112/3(c)). If you file with IDOL, describe the specific violation(s): missing wage range in posting, failure to disclose upon request within 7 days, retaliation, etc. Include dates, job titles, position details, and any evidence of the posting. IDOL has limited resources and may not investigate quickly; if administrative resolution is slow, you may proceed to file a private lawsuit in Circuit Court simultaneously or instead.

**Step 4: Understand the Investigation and Process Timeline.** If you file with IDOL, an investigator will typically contact the employer and request information about wage practices, job postings, and wage ranges for the position(s) at issue. The employer usually has 10–14 days to respond. IDOL may then review evidence and issue a determination of violation or non-violation. The process can take 2–6 months. If IDOL finds a violation, it may issue a notice of violation and attempt to obtain voluntary compliance or penalties. Employers dissatisfied with IDOL's determination can request an administrative hearing. Alternatively, if you file a private lawsuit in Illinois Circuit Court, discovery will be more extensive; the employer must produce job postings, HR records, and pay data. Litigation typically takes 1–2 years to resolution through trial, though settlement is common once evidence is exchanged.

**Step 5: Consult an Attorney.** Given the complexity of wage claims and the potential for retaliation, consult an employment law attorney licensed in Illinois before or concurrent with filing a complaint. An attorney can assess whether you have a strong claim, advise on damages (which range from $500–$1,000 per violation per employee), and help draft demand letters that may prompt settlement. Many Illinois employment attorneys work on contingency (paid from the award) for wage claims. Look for an attorney who specializes in employment law and has experience with Illinois wage transparency claims. An attorney can also advise on retaliation protections and help document any adverse action taken in response to your complaint.