Sexual Orientation Discrimination Laws in Illinois

Last reviewed: June 2026

Quick Answer

Yes, discrimination based on sexual orientation is illegal in Illinois under the Illinois Human Rights Act (IHRA), 775 ILCS 5/1-101 et seq. Employers with one or more employees are prohibited from discriminating in hiring, promotion, compensation, termination, and terms of employment. Victims can file a charge with the Illinois Department of Human Rights (IDHR) within 300 days of the discriminatory act.

Key Facts

•Yes, discrimination based on sexual orientation is illegal in Illinois under the Illinois Human Rights Act (IHRA), 775 ILCS 5/1-101 et seq.
•Employers with one or more employees are prohibited from discriminating in hiring, promotion, compensation, termination, and terms of employment.
•You have 300 days from the date of the discriminatory act to file a charge with the Illinois Department of Human Rights.

Federal Law: The Baseline

Federal law does not explicitly prohibit sexual orientation discrimination under Title VII of the Civil Rights Act of 1964, 42 U.S.C. § 2000e. However, the U.S. Supreme Court's decision in Bostock v. Clayton County, 140 S. Ct. 1731 (2020), held that discrimination based on sexual orientation constitutes sex discrimination in violation of Title VII, covering employers with 15 or more employees. The Equal Employment Opportunity Commission (EEOC) enforces Title VII claims and investigates charges filed within 180 days (or 300 days in certain jurisdictions with state deferral agreements) of the discriminatory act. Remedies under federal law include back pay, front pay, compensatory damages for emotional distress, punitive damages (capped at $300,000 for large employers), and attorney's fees and costs.

Illinois Law: What's Different

Illinois provides stronger protections than federal law through the Illinois Human Rights Act (IHRA), 775 ILCS 5/1-101 et seq., which explicitly lists sexual orientation as a protected class. The IHRA applies to employers with even one employee, whereas Title VII requires 15 or more employees, making Illinois law significantly more protective of small business workers. Illinois defines sexual orientation to include heterosexuality, homosexuality, and bisexuality. The law prohibits discrimination in all aspects of employment: hiring, compensation, job placement, promotion, demotion, transfer, recall, layoff, termination, rates of pay, hours of employment, and other terms and conditions of employment. Unlike the federal Bostock framework (which frames sexual orientation as sex discrimination), Illinois treats sexual orientation as its own distinct protected class. The Illinois Department of Human Rights (IDHR) enforces the IHRA. Remedies available under Illinois law are broader than federal remedies and include actual damages (including lost wages and benefits), compensatory damages for humiliation and emotional distress, punitive damages (without statutory cap), injunctive relief, and attorney's fees and costs. Additionally, Illinois permits unlimited compensatory and punitive damages, unlike the federal Title VII caps. An employee filing with IDHR can also pursue administrative remedies before seeking court action.

Key Numbers & Thresholds

You have 300 days from the date of the discriminatory act to file a charge with the Illinois Department of Human Rights. Illinois law covers employers with 1 or more employees (compared to 15 or more under federal Title VII). The statute of limitations for filing a civil action after receiving a right-to-sue letter from IDHR is generally 2 years from the date of injury or discovery. There is no cap on compensatory or punitive damages under the IHRA.

Exceptions & Special Cases

The IHRA contains limited exceptions. The law does not apply to the federal government, state government, or local government employers (though they remain subject to federal law and state constitutional protections). Religious organizations may be exempt from the prohibition on sexual orientation discrimination if the discrimination is based on a bona fide occupational qualification (BFOQ) directly related to a specific religious function, but courts narrowly construe this exception. The IHRA does not protect independent contractors, only employees. At-will employment doctrine still applies; employers can terminate employees for lawful reasons unrelated to sexual orientation. However, in Illinois, an employer cannot terminate an at-will employee for a reason that violates public policy, including discrimination based on sexual orientation. Seniority systems and merit systems that are applied uniformly and not used as a pretext for discrimination are lawful. Union contracts and collective bargaining agreements must comply with the IHRA; any provision allowing sexual orientation discrimination is void. Employers may impose uniform grooming and dress codes, but these cannot be applied differently based on sexual orientation stereotypes or to discourage employees from expressing their sexual orientation. Small employers (1-14 employees) are fully covered under the IHRA, unlike federal law, so they cannot claim the small employer exception.

What to Do If Your Rights Are Violated

Step 1: Document Everything. Keep detailed records of discriminatory incidents, including dates, times, locations, what was said or done, witnesses present, any emails or messages related to the discrimination, your job performance evaluations, your compensation compared to similarly situated coworkers, and any adverse employment actions (denial of promotion, termination, reduced hours). Save all communications with supervisors and HR in writing; follow up verbal conversations with email summaries. Take screenshots of messages or comments from coworkers or supervisors. Medical records, if the discrimination caused stress or other harm, should be documented.

Step 2: Report to Your Employer. Most Illinois employers have an internal complaint procedure, often handled by Human Resources or an Employee Relations department. File a written complaint with HR detailing the discrimination, the date it occurred, witnesses, and the impact on your employment. Keep a copy of your complaint and any response. Reporting internally does not waive your right to file with IDHR and may demonstrate that your employer had notice. If your employer retaliated against you for reporting discrimination (such as termination, demotion, or hostile treatment), that retaliation itself is illegal under the IHRA.

Step 3: File with the Illinois Department of Human Rights. You must file a charge of discrimination within 300 days of the discriminatory act with IDHR, either online at www.cyberdriveillinois.com/departments/index/human_rights/home.html, by mail to Illinois Department of Human Rights, 100 W. Randolph St., Suite 10-100, Chicago, IL 60601, or by phone at (877) 236-7341. Provide your name, contact information, the employer's name and address, detailed description of the discrimination, dates of incidents, names of witnesses, and any supporting documentation. Filing a federal EEOC charge simultaneously does not waive your right to pursue state remedies. IDHR will assign an investigator to your case.

Step 4: Investigation Process. IDHR will notify the employer of your charge and conduct an investigation, which typically takes 90-180 days but can extend longer. The investigator will interview you, the employer, witnesses, and review relevant employment records. You will receive updates on the investigation status. IDHR will issue a Determination of Cause or No Cause. If IDHR finds Cause, the employer may be ordered to remedy the discrimination or the case may proceed to a civil hearing before the Illinois Human Rights Commission. If IDHR finds No Cause, you will receive a right-to-sue letter authorizing you to file a civil lawsuit in state court within 2 years.

Step 5: Consult an Attorney. Contact an employment law attorney experienced in discrimination cases under the IHRA. Many offer free initial consultations. An attorney can evaluate whether you have a strong case, explain your options (settlement negotiation, administrative remedies, or litigation), and represent you throughout the process. Look for attorneys certified in employment law or those who specialize in LGBTQ+ workplace rights. An attorney can also help you understand the value of your case, including lost wages, emotional distress damages, and punitive damages available under Illinois law.

Relevant Agency

Illinois Department of Human Rights (IDHR)

https://www2.illinois.gov/dhr/Pages/default.aspx

(877) 236-7341

If you believe you've experienced sexual orientation discrimination, connect with an Illinois employment attorney who can review your case and explain your rights under state and federal law.

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Frequently Asked Questions

Does Illinois law protect me if my employer knew I was dating someone of the same sex but didn't explicitly state sexual orientation as the reason for firing me?

Yes. Under the IHRA, you can prove sexual orientation discrimination through circumstantial evidence. If your employer made comments about your sexual orientation, personal life, or relationship status, or if you can show that similarly situated employees of different sexual orientations were treated more favorably, this demonstrates discrimination even if the employer never explicitly stated sexual orientation as the reason. The burden shifts to your employer to prove the adverse action was based on a legitimate, nondiscriminatory reason unrelated to your sexual orientation. Courts recognize that employers often use pretextual reasons to mask discrimination, so the temporal proximity of discriminatory comments to an adverse action, inconsistent application of policies, or changes in the employer's stated reason for termination all support an inference of discrimination.

If my employer fires me after I come out as gay or transition, is that automatically illegal in Illinois?

Coming out or transitioning cannot be a lawful reason to terminate employment in Illinois. An employer firing you solely because you disclosed your sexual orientation or gender identity violates the IHRA. However, an employer might claim the termination was for another reason (poor performance, misconduct unrelated to your identity, restructuring). Your task is to show that the stated reason is pretextual—that the employer applied the same policy inconsistently, ignored prior similar misconduct by others, or changed its story about why you were fired. Courts and IDHR examine the timeline: if you come out on Friday and are fired on Monday, that timing strongly suggests discrimination. If you can show other employees who did similar things were not fired, or that your performance evaluations were positive until you came out, those facts support your case.

Can a religious nonprofit or religious school in Illinois fire me for being gay?

Most likely no, even for religious employers. While the IHRA includes a limited religious exemption, it applies only to discrimination based on a bona fide occupational qualification (BFOQ) directly related to a specific religious function. Illinois courts and IDHR interpret this exemption narrowly. For example, a church might invoke it for a minister position, but not for administrative, janitorial, or secular roles. A religious school typically cannot fire a teacher, counselor, or administrator simply for being gay or having a same-sex spouse, even if the organization is religiously affiliated. Courts look at whether the position involves religious instruction or functions essential to the organization's religious mission. The burden is on the religious organization to prove the BFOQ applies. If a religious employer fires you, file a charge with IDHR and let the investigator determine whether the BFOQ exception applies to your position.

What if my employer created a hostile work environment by allowing coworkers to make homophobic comments or jokes directed at me?

Hostile work environment based on sexual orientation is illegal under the IHRA. If coworkers or supervisors made homophobic slurs, jokes, comments about your sexual orientation, or excluded you based on your sexual orientation, and this conduct was severe or pervasive enough that it altered the terms and conditions of your employment (making work unbearable, causing emotional distress, or affecting your job performance), you have a claim. You do not need to be fired; a hostile environment itself is a violation. Your employer is liable if management knew or should have known about the hostile conduct and failed to take prompt, effective corrective action. Report the conduct to HR in writing, specify the offensive language or conduct, dates, witnesses, and state that it is unwelcome. If HR fails to remedy it, that strengthens your case. Document the ongoing harassment. File a charge with IDHR describing the environment, the frequency and severity of comments, and how it affected your work.

Can my employer refuse to use my correct name and pronouns if I am transgender?

Consistent, intentional refusal to use an employee's correct name and pronouns can constitute sexual orientation or gender identity discrimination under the IHRA, contributing to a hostile work environment. While Illinois law does not explicitly define transgender or non-binary identity within the statutory definition of sexual orientation, courts and IDHR have recognized that discrimination based on gender identity or failure to recognize gender transition is closely related to sexual orientation discrimination and can violate public policy and the IHRA's protections. Request in writing that your employer use your correct name and pronouns; give your employer a reasonable opportunity to comply. If the refusal continues after you have made a clear request, and the refusal is intentional and habitual rather than occasional mistakes, document specific instances and report to HR. If not remedied, file a charge with IDHR. The more egregious the misgendering (especially if coupled with other negative employment actions or hostile comments), the stronger your case.

Sources & References

U.S.C. § 2000e.

Informational only. Not legal advice. Laws change — always verify with a licensed attorney.

Editorial standards: This guide is reviewed against primary government sources and cites 1 statute. Last reviewed June 2026. Scheduled for re-verification by June 2027.

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