To file a workplace discrimination claim in Illinois, you must submit a charge with either the Illinois Department of Human Rights (IDHR) or the Equal Employment Opportunity Commission (EEOC) within 300 days of the discriminatory act if you want to preserve both state and federal options. Missing this deadline typically means losing your right to sue — so acting fast is critical. This guide walks you through every step of the process under Illinois and federal law.
What Laws Protect Illinois Workers From Workplace Discrimination?
Two primary bodies of law protect Illinois employees from workplace discrimination:
The Illinois Human Rights Act (IHRA, 775 ILCS 5/) covers employers with one or more employees and prohibits discrimination based on race, color, religion, sex, sexual orientation, gender identity, national origin, ancestry, age (40+), physical or mental disability, marital status, military status, order of protection status, and pregnancy (including childbirth and related conditions).
Federal Laws — including Title VII of the Civil Rights Act of 1964, the Age Discrimination in Employment Act (ADEA), the Americans with Disabilities Act (ADA), and the Pregnancy Discrimination Act — provide overlapping protections for employees at companies with 15 or more employees (20 or more for age discrimination claims). The IHRA is often broader than federal law and covers smaller employers.
What Counts as Workplace Discrimination in Illinois?
Discrimination occurs when an employer takes an adverse action — firing, demotion, pay cut, denial of promotion, failure to hire, or other significant changes to employment terms — based on a protected characteristic. Harassment that creates a hostile work environment also constitutes discrimination when it is severe or pervasive enough to alter the conditions of employment.
Discrimination can be direct (a supervisor explicitly stating a biased reason) or circumstantial (a pattern of facts suggesting the real reason was discriminatory). Many successful discrimination cases rely on indirect evidence.
How Do I File a Discrimination Charge in Illinois?
Step 1: Act within the deadline. You must file with the IDHR within 300 days of the discriminatory act to preserve dual state/federal filing rights. If you only wish to pursue a state claim under the IHRA, you have 365 days from the discriminatory act to file with the IDHR.
Step 2: Gather your evidence. Before filing, document the discriminatory conduct: dates, times, who was involved, what was said or done, and any witnesses. Save emails, text messages, performance reviews, and any documentation that shows disparate treatment compared to similarly situated employees outside your protected class.
Step 3: File your charge. You can file with the IDHR online, by mail, or in person at their Chicago or Springfield offices. Filing with the EEOC automatically cross-files with the IDHR (and vice versa) through a work-sharing agreement, so you typically only need to file at one agency. The charge must describe the discriminatory conduct, identify the employer, and specify the protected class you believe triggered the discrimination.
Step 4: The investigation. After filing, the agency will notify your employer and begin an investigation. This may include a request for documents, witness interviews, and a mediation offer. Most charges are resolved at this stage — either through a settlement, a “no probable cause” finding, or a “substantial evidence” finding.
Step 5: Right to sue. If the investigation does not resolve your charge, you can request a Right to Sue letter from the EEOC (after 180 days) and proceed to federal court, or request a hearing before an IDHR administrative law judge. In federal court, you must file your lawsuit within 90 days of receiving your Right to Sue letter.
Do I Need a Lawyer to File a Discrimination Claim?
You are not required to have an attorney to file a charge with the IDHR or EEOC. However, the process involves legal deadlines, evidentiary standards, and agency procedures that can significantly affect your outcome. An experienced employment discrimination attorney can help you build the strongest possible charge, negotiate a favorable settlement, and represent you at a hearing or in court if necessary. Most employment attorneys handle discrimination cases on a contingency fee basis — meaning no upfront cost to you.
What Remedies Are Available for Workplace Discrimination in Illinois?
Successful discrimination claimants in Illinois may recover: back pay (lost wages since the discriminatory act), front pay (future lost wages if reinstatement is not feasible), reinstatement to the former position, compensatory damages for emotional distress and out-of-pocket losses, punitive damages in federal cases involving intentional discrimination by larger employers, and attorney’s fees and court costs.
Frequently Asked Questions
How long do I have to file a discrimination claim in Illinois?
You have 300 days from the discriminatory act to file with the EEOC (which cross-files with the IDHR), or 365 days to file solely with the IDHR. These deadlines are strictly enforced. Missing the window almost always results in losing your right to pursue the claim.
What protected classes does the Illinois Human Rights Act cover?
The IHRA protects employees from discrimination based on race, color, religion, national origin, ancestry, sex, sexual orientation, gender identity, age (40+), disability, marital status, military status, order of protection status, and pregnancy. Illinois law covers more protected classes than federal law and applies to employers with even one employee.
Can I sue my employer directly without going through the IDHR or EEOC?
For most discrimination claims, you must first file an administrative charge and exhaust the agency process before suing in court. Skipping this step will result in your lawsuit being dismissed. There are limited exceptions, so consult with an employment attorney to understand your specific options.
What is the difference between the IDHR and the EEOC?
The IDHR (Illinois Department of Human Rights) enforces the Illinois Human Rights Act at the state level. The EEOC (Equal Employment Opportunity Commission) enforces federal anti-discrimination laws. The two agencies have a work-sharing agreement, so filing with one typically preserves your rights under both. The IDHR can cover smaller employers and additional protected classes that federal law does not include.
What happens after I file a discrimination charge?
The agency notifies your employer, investigates the charge, and may offer mediation. If mediation fails and the investigation finds merit to your claim, the agency may proceed to a hearing or issue a Right to Sue letter allowing you to file in court. The process typically takes one to two years, though cases can settle much earlier through negotiation.
What evidence do I need to prove workplace discrimination?
Evidence can include emails, text messages, performance reviews, witness statements, and statistical patterns showing differential treatment. Discrimination is often proved circumstantially — for example, by showing that a similarly situated employee outside your protected class was treated more favorably under comparable circumstances.
Contact Atlas Law Center for a free consultation at (630) 394-6350 (Employment Law). We represent Illinois workers in discrimination claims before the IDHR, EEOC, and in state and federal court.