Illinois HB 3773 AI Employment Discrimination Law 2026: Compliance Guide
Illinois has joined the small group of states directly regulating AI in employment decisions by amending its Human Rights Act. If your company uses AI anywhere in recruiting, screening, promotion, or termination — and employs people in Illinois — HB 3773 creates new notice duties and discrimination exposure you need to account for.
What Changed in the Illinois Human Rights Act
Before HB 3773, the Illinois Human Rights Act prohibited discrimination in employment based on protected classes, but did not specifically address how that prohibition applies when an algorithm — rather than a human manager — makes or materially influences the decision. HB 3773 closes that gap by amending the Act to explicitly state that using AI to discriminate against an employee or applicant based on a protected class is a civil rights violation, whether the discrimination is intentional or the result of a disparate impact the employer failed to identify.
The law also adds a notice requirement: covered employers must inform employees and applicants when AI is being used to make or support employment decisions that affect them, and — where zip code or similar proxy data is used as an input — restricts using it in a way that functions as a proxy for a protected class such as race or national origin.
Which Employment Decisions Are Covered
Recruitment & Sourcing
MEDIUM RISKAI tools that rank, filter, or target job postings to candidates, including AI-driven ad targeting for recruitment campaigns.
Hiring & Screening
HIGH RISKResume screening algorithms, AI video-interview analysis, automated skills or personality assessments used to shortlist candidates.
Promotion & Performance
HIGH RISKAI-assisted performance scoring, promotion-readiness algorithms, and productivity-monitoring tools that feed into advancement decisions.
Discipline & Termination
HIGH RISKAI systems used to flag performance issues, generate disciplinary recommendations, or support reduction-in-force selection criteria.
Compliance Checklist for Employers
Inventory Every AI Tool Touching Employment Decisions
List every AI or algorithmic tool used across recruiting, screening, performance management, and termination — including features bundled inside your existing HR/ATS platform that you may not think of as 'AI.'
Add Employee and Applicant Notice
Update job postings, offer letters, and internal HR communications to disclose where AI is used in a decision-making process affecting the individual.
Test for Disparate Impact, Not Just Intent
Run outcome analysis on AI-assisted hiring and promotion decisions across protected classes. Good intentions do not satisfy a disparate-impact standard — you need to actually check the outcomes.
Scrutinize Proxy Variables
Review whether zip code, school name, or similar variables used by your AI tools could function as a proxy for race, national origin, or other protected characteristics.
Get Vendor Documentation
Request bias-testing documentation and model-card style disclosures from any third-party AI hiring or HR vendor — you retain responsibility for the outcome even if you did not build the model.
How Illinois Compares to Other AI Employment Rules
Illinois joins New York City's Local Law 144 (mandatory independent bias audits for automated employment decision tools) and Colorado's AI Act as part of a growing patchwork of state and local AI employment rules. Employers operating across multiple jurisdictions should treat this as a compliance floor that keeps rising rather than a one-time project — a tool that passes muster in one jurisdiction's framework may still need adjustment for another's notice or audit requirements.
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Scan Your Site for Free →Frequently Asked Questions
Does HB 3773 apply to remote employees living in Illinois for an out-of-state company?
The Illinois Human Rights Act generally applies based on where the employee works, which under current guidance includes Illinois-based remote employees even if the employer is headquartered elsewhere. Companies with distributed workforces should confirm coverage for their specific Illinois-based headcount.
Is a small business exempt from HB 3773?
The Illinois Human Rights Act has historically applied a minimum employee-count threshold for coverage, similar to other state civil rights statutes. Employers near that threshold should confirm current applicability rather than assuming exemption, since thresholds and definitions are subject to change through subsequent amendments and agency guidance.
What counts as 'using AI' in an employment decision?
Guidance under similar laws has generally treated both fully automated decisions and AI tools that materially assist or influence a human decision-maker as covered — a resume-ranking score that a recruiter relies on, for example, is unlikely to escape coverage just because a human made the final call.
How does this relate to NYC Local Law 144?
Local Law 144 requires a mandatory independent bias audit and public posting of results for covered automated employment decision tools used in New York City. HB 3773 does not impose an identical audit mandate but shares the underlying goal of preventing discriminatory AI-assisted employment decisions, so documentation built for one can support compliance efforts for the other.