How to File a Sexual Harassment Claim in Illinois: Step-by-Step Guide (2026)

If you've experienced sexual harassment at work in Illinois, you have the right to file a formal complaint with government agencies or pursue a lawsuit. Understanding the filing process, deadlines, and what to expect can help you protect your rights and hold your employer accountable. This guide walks you through filing a sexual harassment claim under the Illinois Human Rights Act (IHRA).

Your Filing Options in Illinois

You have multiple options for filing a sexual harassment claim in Illinois, and you can file with more than one agency.

Illinois Department of Human Rights (IDHR)

Primary state agency for harassment claims

Coverage:

• Employers with 1+ employees (for sexual harassment)
• Broadest coverage in Illinois

Filing deadline: 300 days from last harassment incident

Contact:

• Website: www2.illinois.gov{rel="nofollow"}
• Chicago office: 312-814-6200
• Springfield office: 217-785-5100

Equal Employment Opportunity Commission (EEOC)

Federal agency enforcing Title VII

Coverage:

• Employers with 15+ employees

Filing deadline: 300 days in Illinois

Contact:

• Website: eeoc.gov{rel="nofollow"}
• Phone: 1-800-669-4000
• Chicago District Office: 230 S. Dearborn Street, Suite 1866

Chicago Commission on Human Relations (CCHR)

City agency for Chicago employees

Coverage:

• Employers in Chicago
• All sizes (no minimum employees)

Filing deadline: 365 days (longer than IDHR/EEOC)

Contact:

• Website: chicago.gov{rel="nofollow"}
• Phone: 312-744-4111
• Address: 740 N. Sedgwick, Suite 400

Can You File with Multiple Agencies?

Yes. You can cross-file with IDHR and EEOC simultaneously. This preserves both state and federal claims.

Dual filing benefits:

• Preserves all remedies
• Two investigations running
• More options if one agency dismisses

IDHR and EEOC have worksharing agreement—filing with one typically results in automatic cross-filing with the other.

Before You File: Preparation Steps

Document Everything

Create a detailed timeline:

• Date and time of each harassment incident
• Exactly what was said or done
• Where it occurred
• Who was present (witnesses)
• How you responded
• Impact on your work and well-being

The more specific your documentation, the stronger your case.

Gather Evidence

Collect all relevant materials:

• Emails, texts, or voicemails with harassing content
• Photos of offensive materials or workplace postings
• Performance reviews (especially before and after harassment)
• Company policies on harassment
• Your written complaints to employer
• Witness contact information
• Medical records if you sought counseling
• Documentation of any retaliation

Report to Your Employer First

Why report internally:

• Required in many cases to establish employer liability
• Gives employer chance to correct situation
• Creates paper trail of complaint
• Protects against retaliation claim

How to report:

• Follow company procedures if they exist
• Report to HR, supervisor, or designated person
• Put complaint in writing
• Request response in writing
• Keep copies of everything

Exception: Don't report if the harasser is the owner of a small company with no HR department, or if reporting would be futile or dangerous.

Consult an Attorney

Before filing, talk to an employment lawyer:

• Evaluate strength of your case
• Advise on which agency to file with
• Help gather evidence
• Ensure you meet deadlines
• Guide you through process
• Potentially negotiate resolution before formal filing

Most employment attorneys offer free consultations and work on contingency (no upfront fees).

Filing with IDHR: Step-by-Step

Step 1: Determine If You're Within the Deadline

You must file within 300 days of the last incident of harassment.

The clock runs from:

• The last harassing act
• Last adverse employment action
• Continuing violation (ongoing harassment) extends deadline

Don't wait to file. Gathering information and preparing your charge takes time.

See our guide on statute of limitations for sexual harassment claims.

Step 2: Complete the Charge Form

How to obtain the form:

• Download from www2.illinois.gov/dhr
• Call IDHR to request by mail
• Visit IDHR office in person

Information you'll need:

• Your name and contact information
• Employer's name and address
• Number of employees (if known)
• Dates of harassment
• Description of what happened
• Basis of discrimination (sex/gender)
• Whether you've filed with other agencies

Step 3: Describe the Harassment

Be specific but concise:

• Identify the harasser by name and position
• Describe specific incidents with dates
• Explain how this was sexual in nature
• Note whether you reported to employer
• Describe employer's response (or lack thereof)
• Mention any retaliation

Example of effective description: "On June 15, 2026, my supervisor John Smith said, 'You'd get a promotion if you went out with me.' I reported this to HR on June 18. On June 25, I was demoted from Project Manager to Administrative Assistant. When I asked why, I was told 'We're restructuring.'"

Step 4: Submit Your Charge

Three ways to file:

1. Online: Through IDHR website portal
2. By mail: Send to appropriate IDHR office
3. In person: Visit Chicago or Springfield office

IDHR Offices:

• Chicago: 100 W. Randolph Street, 10th Floor, Chicago, IL 60601
• Springfield: 222 S. College, Room 101-A, Springfield, IL 62704

Keep copies of everything you submit.

Step 5: IDHR Investigation Process

What happens after filing:

1. Charge accepted: IDHR reviews for timeliness and jurisdiction
2. Employer notified: Your employer receives copy of charge
3. Employer response: Employer has 30 days to respond
4. Investigation: IDHR investigates claims (may take 6+ months)
5. Finding: IDHR issues finding of "substantial evidence" or "no substantial evidence"

During investigation:

• IDHR may request additional information from you
• You may be interviewed
• Witnesses may be contacted
• Documents will be reviewed

Step 6: After IDHR's Finding

If substantial evidence found:

• Case referred to Illinois Human Rights Commission for hearing
• Settlement conference may be scheduled
• You can proceed to formal hearing
• Or request Right-to-Sue letter to file lawsuit in court

If no substantial evidence found:

• Case dismissed by IDHR
• You can request Right-to-Sue letter
• You have right to file lawsuit in court anyway

You can request Right-to-Sue letter at any time after 365 days from filing charge.

Filing with EEOC: The Process

EEOC Process Is Similar to IDHR

1. File charge within 300 days
2. EEOC investigates (or issues immediate Right-to-Sue if dual-filed with IDHR)
3. Determination: EEOC finds cause or no cause
4. Mediation option: EEOC may offer mediation
5. Right-to-Sue letter: Required before filing federal lawsuit

EEOC and IDHR share information through worksharing agreement, so filing with one often results in automatic dual-filing.

Filing EEOC Charge

How to file:

• Online through EEOC Public Portal: publicportal.eeoc.gov{rel="nofollow"}
• Schedule interview: 1-800-669-4000
• Visit EEOC office in person

EEOC Chicago District Office:

• 230 S. Dearborn Street, Suite 1866, Chicago, IL 60604
• Phone: 312-626-6200

Filing with Chicago Commission on Human Relations

For Chicago workers only:

Advantages:

• 365-day deadline (longer than IDHR/EEOC)
• Local jurisdiction familiar with Chicago employment issues
• Additional remedies under Chicago ordinance

Process similar to IDHR:

1. File complaint
2. Investigation
3. Hearing before Administrative Law Judge
4. Commission decision

File online or in person:

• 740 N. Sedgwick Street, 4th Floor, Chicago, IL 60654
• Phone: 312-744-4111

What Happens During the Investigation

Agency Will Investigate Your Claim

Investigation may include:

• Requesting documents from employer
• Interviewing you and witnesses
• Reviewing company policies
• Examining emails, texts, and other evidence
• On-site investigation (rarely)

Your Cooperation Is Essential

You must:

• Respond promptly to agency requests
• Provide additional information when asked
• Make yourself available for interviews
• Preserve evidence
• Keep agency informed of address changes

Failure to cooperate can result in dismissal of your charge.

Timeline Expectations

IDHR/EEOC investigations take time:

• Simple cases: 6-12 months
• Complex cases: 12-24+ months
• COVID-19 created backlogs at many agencies

You can request Right-to-Sue letter after 365 days if investigation isn't complete and you want to proceed with lawsuit.

Moving from Administrative Charge to Lawsuit

When You Can File a Lawsuit

You must obtain Right-to-Sue letter before filing lawsuit in court.

Three ways to get Right-to-Sue:

1. After substantial evidence finding by IDHR (if you don't want Commission hearing)
2. After no substantial evidence finding by IDHR (dismissed cases)
3. Request after 365 days from filing charge (regardless of investigation status)

Deadline to File Lawsuit After Right-to-Sue

EEOC Right-to-Sue: 90 days from receipt to file federal lawsuit

IDHR Right-to-Sue: 90 days from receipt to file state court lawsuit

Don't miss this deadline. It's strictly enforced.

Filing in Court

Once you have Right-to-Sue letter:

• Federal claims: File in U.S. District Court (under Title VII)
• State claims: File in Illinois Circuit Court (under IHRA)
• You'll need an attorney for court proceedings

Retaliation Is Illegal

Illinois law prohibits retaliation for filing harassment charges.

Employer cannot:

• Fire you for filing IDHR/EEOC charge
• Demote or discipline you
• Reduce pay or hours
• Create hostile work environment
• Take any adverse action because you filed

If retaliated against:

• Document the retaliation
• Report to the investigating agency
• File separate retaliation charge if needed
• Consult attorney immediately

Learn more about workplace retaliation protections in Illinois.

Remedies You Can Recover

If you win your case (through agency or court), you can recover:

Economic damages:

• Back pay (lost wages from termination or demotion)
• Front pay (future lost earnings)
• Lost benefits
• Out-of-pocket expenses

Compensatory damages:

• Emotional distress
• Mental anguish
• Harm to reputation
• No statutory caps under IHRA

Other relief:

• Reinstatement to your job
• Promotion you were denied
• Policy changes at employer
• Injunction against further harassment
• Attorney's fees and costs

Punitive damages available in some cases under IHRA (no caps).

Frequently Asked Questions

How much does it cost to file with IDHR or EEOC?

Filing charges with IDHR or EEOC is free. There are no filing fees for administrative complaints.

Do I need a lawyer to file with IDHR or EEOC?

No, you can file on your own. But consulting an attorney helps ensure you present your case effectively and meet all requirements.

Can I still file if I signed an arbitration agreement?

It depends. You can always file with IDHR or EEOC regardless of arbitration agreements. Whether you must arbitrate instead of filing a lawsuit is a separate question—consult an attorney.

What if I already quit my job?

You can still file a charge. Your claim is based on the harassment that occurred while you were employed. If you quit because the harassment was so severe you felt forced to resign, you may have a "constructive discharge" claim.

Can I file anonymously?

No. You must identify yourself to file a charge. Your employer will be notified of your complaint and provided with your charge.

What if the harasser no longer works there?

You can still file. Your claim is against the employer for allowing the harassment and failing to prevent it, not just against the individual harasser.

Get Legal Help

Filing a sexual harassment claim involves navigating complex procedures and strict deadlines. An experienced employment attorney can guide you through the process, maximize your recovery, and protect your rights.

Free resources:

• Illinois Department of Human Rights: www2.illinois.gov/dhr | 312-814-6200 (Chicago), 217-785-5100 (Springfield)
• EEOC: eeoc.gov{rel="nofollow"} | 1-800-669-4000
• Chicago Commission on Human Relations: chicago.gov/cchr | 312-744-4111

Related Resources

• Illinois Sexual Harassment Law Overview
• Hostile Work Environment Harassment
• Quid Pro Quo Harassment
• Statute of Limitations for Sexual Harassment Claims
• Employer Liability for Sexual Harassment

Legal Disclaimer

This article provides general information about filing sexual harassment claims in Illinois and is not legal advice. Filing procedures and requirements are subject to change. For advice about your specific situation, consult a licensed Illinois employment attorney.

Official Resources:

• Illinois Department of Human Rights: www2.illinois.gov/dhr{rel="nofollow"} | 312-814-6200
• EEOC: eeoc.gov{rel="nofollow"} | 1-800-669-4000
• Chicago Commission on Human Relations: chicago.gov/cchr{rel="nofollow"} | 312-744-4111