Illinois business insurance requirements

Illinois expects workers' compensation from almost every business with an employee, and it treats going without as a crime: a knowing failure is a felony, each day counts separately, and the Commission can shut down a job site. There is no state disability or paid family leave insurance program, but every employer owes up to 40 hours of paid leave a year. Auto minimums are 25/50/20. On the liability side, the Biometric Information Privacy Act and partial joint and several liability matter more to Illinois premiums than the statutes of limitations.

Workers' compensation requirements

The Illinois Workers' Compensation Act works by industry rather than headcount. Section 3 applies the Act "automatically and without election" to employers in businesses it declares extra hazardous: building and demolition, construction and electrical work, trucking with more than two employees, warehousing, manufacturing, any business using power-driven equipment, bars, restaurants with slicers or fryers, beauty shops, and "any business or enterprise in which goods, wares or merchandise are sold or in which services are rendered to the public at large" once annual payroll tops $1,000. In practice that is nearly everyone, and the definition of employee covers anyone in service "under any contract of hire," so part-time staff count.

The carve-outs are narrow. Sole proprietors, partners and LLC members are outside the Act unless they elect coverage. A bona fide president, vice president, secretary or treasurer of a corporation may withdraw by written notice to the insurer, effective when the carrier receives it. Farms with fewer than 400 working days of agricultural labor per quarter (not counting the owner's resident family), household domestic workers below 40 hours a week for 13 weeks, and commission-only real estate licensees are also outside it. Most carriers will add an exempt owner by endorsement if a contract demands it.

Enforcement sits in Section 4(d), and it has teeth. A Commissioner who finds after a hearing that an employer knowingly failed to insure can order all operations at the site to stop; for extra-hazardous businesses, an emergency order can issue before the hearing. The individual owner, officers, partners or LLC members face a Class 4 felony for a knowing failure and a Class A misdemeanor for a negligent one. The Commission can add a civil penalty of up to $500 a day with a $10,000 minimum, doubling to $1,000 a day and a $20,000 minimum for repeat violators, and Department of Insurance investigators can write citations of $500 to $10,000. An uninsured employer also loses the Act's protection and is sued in court without the defenses of assumption of risk, contributory negligence or co-employee fault.

Contractors carry their subs' risk. Under Section 1(a)3, a business that engages a contractor or subcontractor to do covered work is liable for comp to that contractor's employees if the contractor is uninsured, so a certificate and a coverage check belong in every subcontract file.

There is no state fund. Employers buy from private carriers, self-insure with Commission approval, or go to the assigned risk market. NCCI files advisory loss costs and rates. For January 1, 2026 it proposed a 1.2% decrease in voluntary loss costs, a 0.1% decrease in advisory rates and a 0.8% increase in assigned risk rates (NCCI); your carrier applies its own loss cost multiplier on top. See workers' compensation insurance: how it works.

Disability and paid leave mandates

Illinois has no state temporary disability insurance program and no state paid family and medical leave insurance program as of 2026. It does have a paid leave mandate. Under the Paid Leave for All Workers Act, in effect since January 1, 2024, workers earn one hour of paid leave for every 40 hours worked, up to 40 hours a year, usable for any reason after 90 days, and employers may not demand a reason (Illinois Department of Labor). Chicago and Cook County employers follow their own paid leave ordinances instead (FAQ). This is an employer-paid wage obligation, not an insurance program; income protection beyond it comes from voluntary group disability insurance. See state disability and paid family leave programs: every mandate in 2026 for multistate staff.

Commercial auto requirements

Every motor vehicle operated or registered in Illinois must carry liability insurance (625 ILCS 5/7-601) of at least $25,000 per person and $50,000 per accident for bodily injury and $20,000 for property damage (7-203). Those limits disappear fast after a serious crash, which is why most commercial accounts carry a $1 million combined single limit with an umbrella above it. Interstate for-hire carriers of general freight need at least $750,000 under 49 CFR 387.9. See FMCSA insurance requirements and filings for motor carriers and commercial auto insurance: what it covers and what it leaves out.

The business insurance market in Illinois

Illinois is a deep, competitive commercial market and home to several of the country's largest insurers. Property pricing is driven by hail and tornado losses rather than hurricanes; see severe convective storms: hail, tornadoes and rising insured losses. The Illinois FAIR Plan Association, formed by all admitted property insurers under Article XXXIII of the Insurance Code, makes basic property insurance available on real and tangible personal property at a fixed location to owners the voluntary market declines; Public Act 104-0645 rewrites the article effective January 1, 2027, requiring applications to come through an Illinois-licensed agent registered with the Association (215 ILCS 5/Art. XXXIII; SB 2910). See FAIR Plans and residual markets for commercial property.

Surplus lines placements carry a 3.5% tax for policies effective July 1, 2003 or later, reported twice a year (215 ILCS 5/445), plus fire marshal tax on the fire portion of the premium and a Surplus Line Association of Illinois stamping fee of 0.04% for policies effective January 1, 2023 or later (SLAI). The law allows all three to be passed to the insured. See surplus lines taxes, stamping fees and diligent search.

Liability law that affects premiums

Illinois bars a plaintiff whose fault is "more than 50%" and reduces everyone else's recovery by their share (735 ILCS 5/2-1116). Joint and several liability is partly intact: every liable defendant is jointly liable for medical expenses, and a defendant at 25% or more of total fault is jointly liable for all other damages (2-1117). The plaintiff's employer is left out of that calculation, which is how a contractor found 25% at fault can be on the hook for the entire non-medical award.

The Biometric Information Privacy Act gives a private right of action with liquidated damages of $1,000 per negligent violation and $5,000 per intentional or reckless one, plus attorney fees. A 2024 amendment (P.A. 103-769, effective August 2, 2024) made repeated collection of the same person's biometrics by the same method a single violation, which ended per-scan damages theories for timeclocks but left the per-person exposure. Read the CGL, EPL and cyber policies for biometric exclusions before assuming any of them responds; see Biometric privacy (BIPA) lawsuits and insurance.

In construction, any promise to indemnify another party for that party's own negligence is void (740 ILCS 35), so owners and GCs rely on additional insured status instead. Filing deadlines: two years for personal injury (13-202), five years for damage to property (13-205), and 10 years on a written contract (13-206).

Insurers based in Illinois

Based on NAIC 2025 market share data and each company's own site:

• Zurich North America runs Zurich North America from Schaumburg ($14.62 billion in 2025 commercial premiums), and CNA is headquartered in Chicago ($13.47 billion).
• State Farm ($9.35 billion) and COUNTRY Financial ($691.8 million) are based in Bloomington; Allstate is in Northbrook ($3.24 billion).
• Old Republic is headquartered in Chicago ($7.57 billion), and specialty carrier RLI in Peoria ($1.83 billion).

Where to get help

• Illinois Department of Insurance (idoi.illinois.gov): consumer assistance and complaints 866-445-5364; main office 217-782-4515 in Springfield. File complaints online through the Department's help center; it also licenses carriers and producers.
• Illinois Workers' Compensation Commission (iwcc.il.gov): 312-814-6500 (Chicago), 217-785-7087 (Springfield), 618-346-3484 (Collinsville). Its employer coverage search shows whether a business has a policy on file.
• Illinois Department of Labor (labor.illinois.gov) handles Paid Leave for All Workers Act questions and complaints.

Confirm your obligations with the Commission or a licensed broker, and compare states with the workers' comp and benefits requirements by state.