Illinois HR Compliance Guide for Employers

Illinois ranks among the three most heavily regulated states for employers in the United States, alongside California and New York. If you are expanding from Texas or Florida, the compliance gap is significant. If you are moving from California, you will find familiar territory but with different specifics. Either way, Illinois has several requirements that catch employers off guard regardless of their experience level.

The five that matter most: BIPA makes Illinois the only state with a private right of action for biometric data misuse with statutory damages up to $5,000 per violation. PLAWA requires all employers (including those with one employee) to provide 40 paid hours of leave annually for any purpose. Every employer with one employee must conduct annual sexual harassment training. Secure Choice auto-enrolls employees into a Roth IRA if you do not have a retirement plan. And Chicago operates as a separate compliance jurisdiction with its own minimum wage, leave rules, scheduling ordinance, and harassment training requirements. FirstHR was built to handle exactly this complexity for small business teams without a dedicated HR department.

Illinois Employment Law Fundamentals

At-Will Employment and Its Exceptions

Illinois is an at-will employment state. Either party may end the employment relationship at any time, for any or no reason. Illinois courts recognize three exceptions: the public policy exception (established in Palmateer v. International Harvester), which prohibits firing employees for refusing to commit an illegal act or for exercising a legal right; the implied contract exception, which applies when handbook language or verbal statements create a reasonable expectation of continued employment; and statutory anti-discrimination protections under the IHRA. Illinois does not recognize the covenant of good faith and fair dealing as an employment doctrine.

Illinois is not a right-to-work state. The Workers' Rights Amendment, passed by Illinois voters in November 2022, is a constitutional provision that permanently prohibits right-to-work legislation in Illinois. Employers may enter union security agreements requiring employees to pay dues as a condition of employment. In public sector employment, mandatory fees are prohibited following Janus v. AFSCME (2018).

Illinois WARN Act: 75 Employees, Not 100

Illinois has its own WARN Act (820 ILCS 65/, effective January 1, 2005) that applies at a lower threshold than the federal law. Illinois WARN covers employers with 75 or more full-time employees working 20 or more hours per week for 6 or more months. It requires 60 days' advance notice before a plant closing or mass layoff. The mass layoff trigger is 33 percent of the workforce plus at least 25 employees, or 250 or more employees at a single location. These thresholds are lower than the federal WARN Act. Notify affected employees, the Department of Commerce and Economic Opportunity (DCEO), local elected officials, and the IDOL. Penalties include back pay for up to 60 days plus a $500 per day civil penalty.

Worker Classification: The ABC Test

For unemployment insurance purposes, Illinois uses the ABC test (820 ILCS 405/212), which is stricter than the federal IRS right-to-control test. All three conditions must be satisfied: the worker is free from control and direction in performing the work; the service is performed outside the usual course of business or outside all places of business; and the worker is engaged in an independently established trade, occupation, profession, or business. For the construction industry specifically, the Employee Classification Act (820 ILCS 185) creates a presumption of employee status with additional factors including a $50,000 liability insurance policy and a separate business address.

Hiring and Onboarding Requirements

E-Verify: Illinois Prohibits Mandatory Use

Under the Right to Privacy in the Workplace Act (820 ILCS 55/12), Illinois prohibits employers from requiring employees to participate in E-Verify beyond what federal law mandates. E-Verify is voluntary for most Illinois private employers. If you do voluntarily enroll, SB 3208 (effective January 1, 2025) adds requirements: you must notify employees of deficient documents within 5 business days, provide an opportunity for employees to contest findings, and cannot terminate based on a tentative non-confirmation until the full resolution process is complete. Willful violations carry a $500 fine per employee plus attorney's fees. The state prohibition applies even if federal executive orders encourage E-Verify use.

Background Checks: Ban-the-Box at Two Levels

Illinois has two overlapping ban-the-box frameworks. The Job Opportunities for Qualified Applicants Act (JOQAA, 820 ILCS 70, effective January 1, 2015) applies to employers with 15 or more employees and prohibits asking about criminal history before the applicant has been determined to be qualified for the position or invited to an interview. SB 1480 (effective March 23, 2021) amended the IHRA to make it a civil rights violation to use a conviction record as a disqualifying factor without conducting a mandatory individualized assessment of the relationship between the conviction and the specific job duties. For contractor onboarding that requires background checks, see the contractor onboarding guide.

Drug Testing and Cannabis

Cannabis is a lawful product under Illinois law since the Cannabis Regulation and Tax Act (CRTA, 410 ILCS 705/10-50, effective January 1, 2020). Employers may maintain reasonable and non-discriminatory drug-free workplace policies and may test applicants and employees for cannabis. A positive drug test alone is not proof of impairment. The CRTA impairment standard requires a good faith belief based on articulable symptoms of impairment such as speech, coordination, or behavioral indicators. Employers must give employees a reasonable opportunity to contest a finding of impairment before taking adverse action. Carve-outs exist for DOT-regulated positions and federal Drug Free Workplace Act contractors. For a full onboarding checklist, see the onboarding checklist guide.

Pay Transparency: Two Layers Since 2019

Illinois has two pay-related restrictions. The salary history ban (820 ILCS 112, effective September 29, 2019) applies to all employers and prohibits asking about a candidate's current or prior compensation. Employers with 100 or more employees must also obtain an Equal Pay Registration Certificate (EPRC) from the IDOL, renewable every two years. Since January 1, 2025, employers with 15 or more employees must include the pay scale or salary range in every job posting (internal and external), along with a general description of benefits and other compensation. Promotional opportunities must be posted and current employees notified within 14 days. Records must be retained for 5 years. First-violation penalty: up to $500 with a 14-day cure period. Subsequent violations: up to $10,000.

Wages, Hours, and Pay Rules

Minimum Wage Rates

The $15.00 statewide rate is the final step in a phased increase enacted by Public Act 101-0001 (2019). No further automatic increases are scheduled at the state level. Cook County mirrors the state rate. Chicago adjusts annually on July 1 by the lesser of 2.5 percent or the CPI increase. Domestic workers in Chicago receive the full Chicago rate without any tip credit. For the complete new hire setup process, see the new hire documents guide and the employee onboarding plan.

Overtime: Illinois Differences from the FLSA

Illinois overtime follows the weekly FLSA trigger of 1.5x for hours over 40 per week. There is no daily overtime. However, Illinois's Minimum Wage Law (820 ILCS 105/4a) does not recognize the FLSA's Highly Compensated Employee exemption. An employee who earns more than $107,432 per year may be exempt from federal overtime but is still entitled to overtime under Illinois law. Preliminary and post-shift activities that are compensable under FLSA are similarly compensable under Illinois law.

One Day Rest in Seven Act (ODRISA)

The ODRISA (820 ILCS 140), updated by SB 3146 effective January 1, 2023, requires employers to provide 24 consecutive hours of rest in every 7-day work period. For shifts of 7.5 hours or more, a 20-minute meal break must be provided no later than 5 hours into the shift. Shifts of 12 hours or longer require an additional 20-minute break. Reasonable toilet breaks are required separately from the meal break. Penalties are up to $250 per violation for employers with fewer than 25 employees and up to $500 for larger employers.

Wage Payment and Collection Act (IWPCA)

The IWPCA (820 ILCS 115) governs wage payment timing and deductions. Non-exempt employees must be paid at least semi-monthly (twice per month), no later than 13 days after the close of the pay period. Executives, administrators, and professionals may be paid monthly. Final wages for any separation are due on the next regular payday. All deductions except legally required withholdings require written employee authorization. Vacation is treated as earned wages: use-it-or-lose-it policies are prohibited in Illinois, and accrued vacation must be paid out at termination. Enhanced pay stub requirements effective January 1, 2025 (PA 103-0953) require itemized hours, rates, overtime, and deductions; employees may request copies twice per year; records must be retained for 3 years. For the complete employee exit process, see the employee exit process guide.

Leave Requirements: PLAWA and More

Paid Leave for All Workers Act (PLAWA): The Most Important Illinois Leave Law

The PLAWA (820 ILCS 192, effective January 1, 2024) is one of the most expansive paid leave laws in the country. It applies to all private Illinois employers regardless of size, and to all workers including part-time, temporary, and seasonal employees. Every employee accrues 1 hour of paid leave for every 40 hours worked, up to 40 hours per year. Alternatively, employers may frontload 40 hours at the start of the year or benefit period. Employees may begin using the leave after 90 days of employment. Crucially, the leave can be used for any purpose. You cannot require documentation, ask for a reason, or deny a request on the basis that you disagree with the purpose. Unused accrued hours carry over to the next year (frontloaded hours do not). Payout at termination is not required unless the employer classifies the leave as vacation. Chicago and Cook County employees follow their local ordinances, which have separate rules. Details at labor.illinois.gov/laws-rules.html.

VESSA: Domestic and Sexual Violence Leave

The Victims' Economic Security and Safety Act (VESSA, 820 ILCS 180) applies to all employers with one or more employees and provides job-protected leave for victims of domestic violence, sexual violence, gender violence, or any violent crime. The leave is unpaid and the amount scales with employer size: 4 weeks for employers with 1 to 14 employees, 8 weeks for 15 to 49 employees, and 12 weeks for 50 or more employees. Since 2024, an additional 2 weeks of bereavement leave is available when a family member is killed as a result of a violent crime. Strict confidentiality of all VESSA-related information is mandatory, and reasonable accommodations for ongoing safety concerns are required. For onboarding best practices that include communicating leave policies, see the onboarding best practices guide.

Anti-Discrimination: IHRA and Mandatory Training

Illinois Human Rights Act (IHRA): 20+ Protected Classes

The IHRA (775 ILCS 5/) provides the broadest anti-discrimination framework of any state in this guide. Since January 1, 2025, it covers 20 or more protected classes, two of which were added that year: family responsibilities (the status of being a parent, caregiver, or guardian of a minor child or adult with a disability) and reproductive health decisions. The IHRA complaint filing deadline was extended from 300 days to 2 years effective January 1, 2025 (SB 3310). The IHRA applies to employers with 1 or more employees for sexual harassment and pregnancy discrimination, and 15 or more employees for most other protections. For filing complaints, see the Illinois Department of Human Rights.

Annual Sexual Harassment Training: Required for All Employers

SB 75 (775 ILCS 5/2-109, effective January 1, 2020) requires all Illinois employers with one or more employees to provide annual interactive sexual harassment prevention training to every employee, including part-time, seasonal, and intern workers. The training deadline is December 31 of each calendar year. Content must include a definition of sexual harassment, examples of unlawful conduct, a review of applicable Illinois and federal law, the remedies available to victims, and the employer's responsibilities. A free model training is available at dhr.illinois.gov/training. Restaurants and bars must conduct an additional specialized training and provide a written harassment policy in both English and Spanish. Employers must report adverse judgments related to harassment to IDHR annually. For a compliant onboarding process that includes training documentation, see the compliance onboarding guide.

Pregnancy Accommodations and Genetic Information

Illinois requires reasonable pregnancy accommodations for all employers with one or more employees (775 ILCS 5/2-102(I)-(K)). This includes schedule modifications, additional bathroom breaks, light duty assignments, temporary transfer, and private space for expressing breast milk. An interactive accommodation process is mandatory, and employers cannot force employees onto leave when a reasonable accommodation is available. The Illinois Genetic Information Privacy Act (410 ILCS 513) prohibits conditioning employment or its terms on genetic information, with a private right of action and liquidated damages that exceed even BIPA levels. Class actions under GIPA have increased significantly since 2023.

BIPA: Illinois Biometric Data Law

The Biometric Information Privacy Act (740 ILCS 14/, effective 2008) is the strictest biometric privacy law in the United States and the only one with a private right of action and statutory damages. Before collecting any biometric identifier (fingerprint, retinal scan, iris scan, face geometry, hand geometry, voiceprint), you must: publish a written retention and destruction policy and make it publicly available; and obtain a written or electronic consent from each individual specifying the purpose for collection and the duration for which it will be retained. You cannot sell, lease, profit from, or disclose biometric data without separate consent. You must protect biometric data using a reasonable standard of care.

Workers' Compensation

Workers' compensation is mandatory for all Illinois private employers with one or more employees (820 ILCS 305/), beginning on the first day of hire. Coverage is available only through private insurers or court-approved self-insurance arrangements. Illinois has no state workers' comp fund. The employer must report workplace deaths to the IWCC within 2 business days and injuries resulting in 3 or more lost workdays within 1 month using Form 45. Coverage requirements and forms are available at iwcc.illinois.gov/about/insurance.html.

Penalties for operating without required coverage are severe. Negligent failure to insure is a Class A misdemeanor with fines up to $2,500. Knowing failure to insure is a Class 4 felony with fines up to $25,000 and imprisonment of 1 to 3 years. Daily fines apply: up to $500 per day for first knowing violations (minimum $10,000), up to $1,000 per day for repeat violations (minimum $20,000). Corporate officers and agents face personal liability for WC obligations. The IWCC can issue a work-stop order requiring complete cessation of business operations until coverage is obtained.

Illinois has no state OSHA plan for private sector workers. Federal OSHA has full direct jurisdiction over all private Illinois employers in the state. Illinois OSHA covers only state and municipal government employees.

Employee Privacy and Data Protection

Right to Privacy in the Workplace Act

The Right to Privacy in the Workplace Act (820 ILCS 55) protects employees' lawful off-duty activities. Employers cannot discharge or discipline employees for using legal products outside of work. Section 10(b) prohibits employers from requiring passwords or access to employees' personal social media accounts. Section 10(a) prohibits asking about workers' compensation claims made at previous employers. E-Verify remains voluntary under Section 12. For employees who are notified of termination, the offboarding best practices guide covers the complete separation process.

Personal Information Protection Act (PIPA)

The Illinois PIPA (815 ILCS 530) requires data breach notification. Private companies must notify affected individuals within a reasonable time without undue delay. There is no specific day limit for private companies (a 45-day deadline exists only for state agencies). If the breach affects 500 or more Illinois residents, you must also notify the Attorney General. Personal information covered includes Social Security numbers, driver's license numbers, financial account credentials, medical information, biometric data, and usernames with passwords. An encryption safe harbor applies: if data was encrypted and the encryption key was not compromised, notification is not required. Penalties include up to $50,000 per violation when the failure was with intent to defraud.

The Worker Freedom of Speech Act, effective January 1, 2025, prohibits employers from requiring employees to attend meetings where the employer's views on religious or political matters are communicated (captive audience meetings). The Workplace Transparency Act (820 ILCS 96) limits mandatory nondisclosure agreements in settlements involving harassment and discrimination, with restrictions on jurisdiction and statute of limitations waivers expanding further on January 1, 2026.

Termination, Non-Competes, and Separation

Final Paycheck and Termination

Under the IWPCA (820 ILCS 115/5), the final paycheck is due on the next regular payday for all separations, whether voluntary or involuntary. Illinois has no accelerated rule (unlike California's same-day requirement). The final paycheck must include all earned wages, commissions, bonuses, and the monetary equivalent of accrued vacation. You cannot withhold a final paycheck because an employee failed to return equipment. Vacation accrued under your policy must be paid out since use-it-or-lose-it vacation policies are unenforceable in Illinois. Sick pay is not required to be paid out unless your policy says otherwise. Officers and agents of the company face personal liability for IWPCA violations. For the full separation process, see the offboarding best practices guide.

Freedom to Work Act: Non-Compete Reform

Beyond income thresholds, Illinois non-compete requirements include a 14-day review period before signing and written advice to consult an attorney. If a non-compete is signed after employment begins, continued employment is only sufficient consideration when the employee has worked for the employer for 2 or more years (per Fifield v. Premier Dealer Services). Courts will apply these requirements strictly. The Attorney General may impose fines of $5,000 per violation ($10,000 for repeat violations) for non-compete agreements entered in violation of the Freedom to Work Act. If a non-compete is successfully challenged by an employee, the employer must pay the employee's attorney's fees. The Act is not retroactive and applies only to agreements entered after January 1, 2022. For a sample employee handbook that covers non-compete policy language, see the sample employee handbook.

Payroll, Taxes, and Illinois Secure Choice

Illinois Payroll Taxes

Illinois income tax is a flat 4.95 percent, withheld using Form IL-W-4 in addition to the federal W-4. Register for all Illinois business taxes through MyTax Illinois (mytax.illinois.gov), which replaced the older PA-100 form in 2022. For unemployment insurance (UI) registration and quarterly wage reports, use IDES. Current SUTA rates are available at ides.illinois.gov. For a complete list of tax forms for new hires, see the tax forms for new employees guide.

Illinois Secure Choice: Mandatory Retirement Program

Illinois Secure Choice (820 ILCS 80/) is mandatory for private employers with 5 or more employees who have been in business for 2 or more years and do not offer a qualified retirement plan. Eligible plans that exempt you include 401(k), 403(b), SEP-IRA, SIMPLE IRA, and pension plans. Employees are auto-enrolled at a 5 percent Roth IRA contribution, which auto-escalates 1 percent per year up to 10 percent maximum. Employees can opt out within 30 days or adjust their contribution rate. The employer makes no contributions; the role is limited to running payroll deductions. Penalties are $250 per employee in the first year of non-compliance and $500 per employee in each subsequent year. All enrollment phases are complete. Even if you have your own retirement plan, register your exemption at employer.ilsecurechoice.com.

Required Workplace Postings

All Illinois employer posters are available free from the IDOL at labor.illinois.gov/employers/posters.html. Updated versions were released in January 2025 following the new minimum wage, pay transparency, and IHRA changes.

Employee Handbook Requirements

Illinois does not legally require a written employee handbook. But four written policies are legally required under specific Illinois statutes, and a handbook is the most practical way to satisfy them. For a complete starting template, see the employee handbook guide or start with the new hire reporting guide for multi-state reporting requirements.

Chicago: A City Within a State

Chicago is the most regulated employment jurisdiction in the Midwest. Employers with any employees working in Chicago must comply with both Illinois state law and Chicago's local ordinances simultaneously. On every major topic covered in this guide, Chicago either sets a higher standard or adds a requirement that the state does not have.

Chicago Fair Workweek Ordinance

The Chicago Fair Workweek Ordinance (MCC § 6-110) applies to employers with 100 or more employees globally (250 or more for nonprofits) operating in 7 industries: building services, healthcare, hotels, manufacturing, retail, restaurants, and warehouses. Covered employees are those earning less than $26 per hour or $50,000 per year who perform work in Chicago. Employers must post schedules 14 days in advance. Changes with more than 24 hours' notice require 1 hour of predictability pay. Cancellations or changes with less than 24 hours' notice require 50 percent pay for the affected hours. Shifts with fewer than 10 hours between them require 1.5x pay. Penalties run $300 to $500 per employee per violation, with $1,000 for retaliation.

Chicago Human Rights Ordinance

Chicago's anti-discrimination ordinance, enforced by the Chicago Commission on Human Relations (CCHR), applies to all employers with one or more employees. It covers 18 or more protected classes, including several unique to Chicago: credit history (cannot use in most hiring decisions), criminal history (subject to strict pre-offer prohibition under ban-the-box), and bodily autonomy (including reproductive health care decisions and gender-affirming care). Penalties range from $5,000 to $10,000 per violation. The CCHR filing deadline is 365 days from the alleged violation.

Key Legislative Changes 2019-2026

The volume of change in Illinois employment law over this period is substantial. The four with the most operational impact for small employers: PLAWA (all employers must track and provide 40 paid hours), BIPA SB 2979 (reduced but did not eliminate class action risk), pay transparency (new 2025 job posting requirements for 15+ employers), and the IHRA 2-year complaint window (extended litigation exposure). For comparison with other complex state environments, the New York HR compliance guide covers a similarly layered regulatory structure. The California HR compliance guide and Pennsylvania HR compliance guide provide additional state-by-state context.

Illinois vs. Federal Law vs. California

Frequently Asked Questions