By the Lapera Insurance Team · Reviewed by Joe Lapera, Licensed Illinois Insurance Agent (IL Lic #100722394)
You searched for what business insurance costs in Illinois and got five different "averages" from five different websites, none of which match. That is not an accident. There is no single real number. Here is what Illinois business insurance cost is built from, the honest benchmarks that do exist, and what moves the price on each line of coverage.
There is no official average cost of business insurance in Illinois, but the best state benchmark is workers' compensation: Illinois's premium rate index of $1.34 per $100 of payroll ranked 13th-highest of 51 in Oregon's 2024 Workers' Compensation Premium Rate Ranking (rates as of January 1, 2024). Every other line, general liability, BOP, commercial auto, is priced on your own industry, payroll or revenue, property, vehicles and claims. A real quote on your business is the only number that fits.
We understand why people want one number. You are building a budget, maybe writing a business plan for a lender, and "it depends" is not a line item. So this guide gives you the benchmarks that come from sources we trust, a regulator, a government rate study and the rating organization for Illinois workers' compensation, and shows how each coverage is priced. What it will not do is hand you a made-up average that falls apart the minute an underwriter looks at your payroll.
Why Is There No Single Average Cost for Business Insurance in Illinois?
TL;DR: Because commercial insurance is priced on each business's industry, payroll, revenue, property, vehicles and claims, so an Illinois average would blend a home office with a roofing crew and describe neither.
With a car or a house, a statewide average at least describes something real. Business insurance is different. A two-person bookkeeping firm and a twelve-person landscaping company with four trucks are both "small businesses in Illinois," but they share almost none of the same exposures, and their premiums are built on different foundations.
We looked for a regulator or industry body that publishes an average small business insurance premium for Illinois, and we could not find one from a source we would put our name behind. That tracks with how the National Association of Insurance Commissioners small business guide (accessed September 2026) describes pricing: premiums are based on risk, and the factors differ by coverage. Liability is commonly rated on sales and payroll estimates and the type of business, while workers' compensation reflects payroll, number of employees, type of work and, for established businesses, workplace safety history.
This is also why the "average cost" figures you see online vary so much. Each rate website prices its own sample business, with its own industry mix, employee count, revenue, limits and deductibles, and some use their own customers' purchases as the data. For the same coverage in the same state, published figures can differ widely. They are answering a question about somebody else's business.
Lapera Insurance Agency is a Farmers Insurance agency at 530 Barron Blvd in Grayslake, Illinois. Our team has written coverage for Illinois small businesses since 1993, with over 40 years of combined experience, from single-owner service operations to contractors, restaurants and small retail. We place most business coverage with Farmers and have additional markets when an operation needs something different. Every guide on this site is reviewed by a licensed Illinois agent before it publishes.
The one line with published, government-sourced Illinois benchmarks is workers' compensation, which is also the coverage almost every Illinois employer must carry. So we start there. If you are still sorting out which coverages you need, our guide to what Illinois requires of a small business covers that before you get to price.
How Is Workers' Compensation Priced in Illinois?
TL;DR: Workers' compensation premium starts with your payroll divided by 100, multiplied by the rate for each job classification, then adjusted by your experience modification and other rating factors.
Workers' comp is the most formula-driven coverage you will buy, which means you can see exactly where your premium comes from and where it can go wrong.
- Payroll by class, divided by 100. Each employee's work is assigned a classification code that describes the job, not the business name on the door. A contractor's office manager and a contractor's field crew belong in different classes.
- Multiplied by the class rate. Each classification carries a rate per $100 of payroll. The National Council on Compensation Insurance (NCCI) puts it simply in its experience rating primer: each $100 of payroll is multiplied by the rate to arrive at the premium for each classification.
- Multiplied by your experience mod. Once a business qualifies for experience rating, NCCI compares its actual payroll and loss history, usually the latest available three years, with what is expected for its classes. A mod of 1.00 is neutral; below 1.00 is a credit and above 1.00 is a debit.
- Then other adjustments. The Oregon premium rate study (June 2025) lists the other factors that move an individual employer's price: premium discounts, deductibles, retrospective rating, insurer deviations and schedule rating plans.
Who sets those class rates? In Illinois, NCCI is a licensed rating organization authorized to make recommended advisory rate, loss cost and assigned risk rate filings on behalf of workers' compensation insurers, according to NCCI's summary of its Illinois filing effective January 1, 2026. Insurers build their own pricing from that foundation, which is why two carriers can quote the same business differently.
The $1.21 figure is the Illinois Department of Insurance's estimate of the average manual rate, the starting rate per $100 of payroll before experience mods and other adjustments, for voluntary-market policies effective in 2023. The Department calculated it as a weighted average of NCCI rates based on Illinois payroll, so it blends every classification in the state, from clerical work to roofing, so it is not the rate for your class and not a quote. Use it for scale and trend. The number that matters is your class rates applied to your payroll, which only a real quote on your business produces.
Two things stand out. The voluntary rate went down between 2022 and 2023, so Illinois workers' comp has not followed the auto and home story. And the assigned risk market, the coverage of last resort for employers that cannot get a voluntary policy, averaged more than three times the voluntary rate. Staying insurable in the voluntary market, with clean payroll reporting and a claim history you manage, is one of the most valuable things you can do for your workers' comp bill.
How Do Illinois Workers' Comp Rates Compare With Other States?
TL;DR: Illinois ranked 13th-highest of 51 jurisdictions in Oregon's 2024 study, with a premium rate index of $1.34 per $100 of payroll, 123% of the national median.
The best apples-to-apples comparison comes from an unusual place: the State of Oregon. Every two years, Oregon's Department of Consumer and Business Services publishes a Workers' Compensation Premium Rate Ranking that prices the same mix of 53 industry classifications in every state and the District of Columbia, weighted by Oregon's payroll so states compare fairly. The 2024 edition, published June 2025, analyzes rates effective through January 1, 2024, and is the latest available.
| Jurisdiction | 2024 index (per $100 payroll) | 2024 rank (1 = highest) | Compared with median |
|---|---|---|---|
| Illinois | $1.34 | 13 (19 in 2022) | 123% of median |
| Study median | $1.09 | Lowest median in the study's history | |
| Wisconsin | $1.42 | 7 | 130% of median |
| Missouri | $1.31 | 16 | 120% of median |
| Iowa | $1.21 | 19 | 110% of median |
| Kentucky | $0.76 | 41 | 70% of median |
| Indiana | $0.71 | 45 | 65% of median |
Source for the table: the Oregon DCBS 2024 study report. Three takeaways. Illinois sits in the higher-cost third of the country, worth knowing if you are budgeting for a first hire. Illinois moved from 19th to 13th even though its own index dipped, from $1.39 in the 2022 study, because other states got cheaper faster; the national median fell to the lowest level in the study's history. And near the state line, Indiana's index was about half of Illinois's, while Wisconsin's was higher.
The study's own caution applies: the rate listed for a class will often differ from what an individual employer pays. The index tells you where Illinois stands, not what your business will pay.
What Changed for Illinois Business Insurance Costs in 2026?
TL;DR: NCCI's Illinois filing effective January 1, 2026 proposed a 1.2% decrease in voluntary loss costs and a 0.8% increase in assigned risk rates, and the Illinois dram shop damage caps rose with inflation.
The biggest scheduled change was on the workers' comp side. According to NCCI's summary of its proposed Illinois filings, filed with the Illinois Department of Insurance on July 30, 2025 for an effective date of January 1, 2026:
- Voluntary market loss costs: a proposed 1.2% decrease in the overall loss cost level.
- Voluntary market advisory rates: a proposed 0.1% decrease.
- Assigned risk rates: a proposed 0.8% increase.
- Why: NCCI said the filing reflects Illinois experience from policy years 2022 and 2023, which showed slight improvement over the data behind the prior filing, plus the estimated effect of the Illinois medical fee schedule effective January 1, 2025. Across all NCCI states, it added, claim frequency fell faster in 2024 than its long-term average.
A 1.2% decrease is a statewide average across all classifications. Your class can move more or less, and your premium also moves with your payroll. A business that gave raises or added staff in 2026 can see its workers' comp bill rise in a year when statewide loss costs fell, simply because there is more payroll to rate.
On the liquor side, the Illinois Liquor Control Commission reports that the Dram Shop Act caps adjusted 2.68% for inflation. For judgments or settlements on or after January 20, 2026, recovery is capped at $90,411.55 per person for injury to person or property and $110,503 in aggregate for loss of means of support or society. Our guide to Illinois dram shop liability and liquor coverage explains why those caps shape a claim but do not make it small.
What Drives the Price of Each Type of Business Insurance?
TL;DR: Each line has its own rating base: payroll and class for workers' comp, industry and revenue or payroll for general liability, property values for a BOP, and vehicles, drivers and use for commercial auto.
| Coverage | Required in Illinois? | Rated mainly on | What moves your price |
|---|---|---|---|
| Workers' compensation | Yes, for nearly all employers | Payroll per $100, by job class | Class codes, experience mod, payroll accuracy, safety record |
| General liability | Not by law | Industry class plus revenue or payroll | Type of work, location, limits, claims, contract requirements |
| Business owner's policy (BOP) | Not by law | Property values plus liability exposure | Building construction and age, contents values, business type, theft and fire exposure |
| Commercial auto | Yes, on business vehicles | Each vehicle and driver | Vehicle type, driving records, radius, use, where it is parked, limits |
| Professional liability | Depends on profession and contracts | Profession, revenue, services | Type of advice or service, claims history, contract size, limits |
| Liquor liability | Often a license condition | Alcohol sales | Share of revenue from alcohol, hours, entertainment, claims, training |
| Cyber liability | Not by law | Revenue and data held | Records stored, payment handling, security controls, limits |
| Commercial umbrella | Not by law | The policies beneath it | Underlying limits, industry, vehicles, overall exposure |
General liability
Rated on industry class and an exposure base, usually revenue or payroll. In an NAIC example rated per $1,000 of sales, a toy manufacturer might pay up to twice a florist's rate.
Business owner's policy
Farmers explains that BOP rates rest on the underwriter's assessment of the business's risk and the coverage level you choose: size, limits, building characteristics and theft and fire exposure.
Commercial auto
Priced vehicle by vehicle and driver by driver, by radius, cargo and use. Illinois minimum liability is 25/50/20 (IDOI), far below a serious commercial limit.
Professional liability
Rated on what you do and how much of it. An accountant and an engineer carry very different exposure to advice-based claims, which general liability does not cover.
Liquor liability
Rated largely on alcohol sales and operations: late hours, entertainment and claims push it up.
Cyber liability
Driven by how much data you hold and how you protect it, including customer records and card payments.
Notice what appears in almost every row: classification. In our experience, the most common reason a business overpays, or gets a surprise later, is that the policy's description of operations does not match what it actually does. A landscaper who adds snow removal or a consultant who starts doing installation work has changed its exposure, and the policy needs to know.
The other word worth noticing is auditable. Workers' comp and many general liability policies are priced on estimated payroll or revenue, then trued up by a premium audit after the policy ends. If the estimate was low, you owe the difference.
A small Illinois contractor estimates $150,000 in field payroll for the year. Using an illustrative class rate of $5.00 per $100 of payroll and an experience mod of 0.90, the estimated workers' comp premium is $150,000 divided by 100, times $5.00, times 0.90, or $6,750. The business has a strong year and actual field payroll comes in at $220,000. At audit, the same math produces $9,900, and the owner receives a bill for the $3,150 difference. Meanwhile the office manager's $45,000 salary, part of that $220,000, had been reported in the field class; moved to a clerical class with a much lower rate, it would have cut the premium on that payroll substantially. These figures are illustrative, not Illinois class rates, not a quote and not a premium any business will pay. Actual rates depend on the classification, the carrier and the business's own history.
The lesson is not "estimate high." It is "estimate honestly and update mid-year." If your payroll is growing fast, tell us, and the audit becomes a formality instead of a surprise.
What Does It Cost to Go Without Workers' Comp in Illinois?
TL;DR: Far more than the premium: the Illinois Workers' Compensation Commission can fine a knowingly uninsured employer up to $500 per day with a $10,000 minimum, issue a work-stop order and pursue criminal charges against officers.
Some owners look at a workers' comp quote and wonder whether they can wait. In Illinois, the answer is no. The Illinois Workers' Compensation Commission (accessed September 2026) states that Illinois law requires employers to provide workers' compensation insurance for almost everyone who is hired, injured, or whose employment is localized in Illinois. Its description of the consequences, which track Section 4(d) of the Workers' Compensation Act (820 ILCS 305/4):
- Civil fines. An employer that knowingly and willfully fails to obtain insurance may be fined up to $500 for every day of noncompliance, with a minimum fine of $10,000.
- Personal liability for officers. Corporate officers can be held personally liable if the company fails to pay the penalty.
- Criminal exposure. Officers who negligently fail to obtain insurance are guilty of a Class A misdemeanor; knowingly failing is a Class 4 felony.
- Work-stop orders. The Commission may order a business that knowingly failed to insure to stop operating.
- Lawsuits outside the comp system. An uninsured employer loses the protections of the Act, and the Commission notes that injured employees may sue in civil court.
For an employer that knowingly goes without coverage, the fine starts at $10,000, before officer liability, a work-stop order or a single injury claim. If cash flow is the reason coverage is on hold, talk to us about payment options and an accurate payroll estimate. Waiting is the most expensive option on the table.
The same logic applies to subcontractors. If you hire one who has not insured their own workers, the Act can make you responsible for their employees' injuries. Collect a current certificate of insurance before work starts.
How Can an Illinois Business Lower Its Premium Without Cutting the Wrong Coverage?
TL;DR: Fix classification and payroll reporting, manage claims and safety to improve your mod, package coverage sensibly and choose deductibles you can afford, rather than cutting limits or skipping coverages.
The wrong way to bring a business insurance bill down is to drop business income coverage, carry the Illinois auto minimum on a work truck, or skip employment practices liability because nobody has sued you yet. Here is what actually works.
- Get the class codes right. Clerical and sales staff who never go to a job site often belong in lower-rated classes than the field crew.
- Report payroll accurately, and update it. A mid-year update when you add staff keeps the bill in step with the business.
- Manage your experience mod. Report injuries promptly, support return-to-work and invest in safety. The mod uses several years of history, so today's improvements pay off over time.
- Package where it fits. Farmers writes property, liability, auto, workers' compensation and umbrella coverage for businesses, and one carrier across lines can make an umbrella simpler to place.
- Choose deductibles you can actually pay. A higher deductible only helps if the business has the cash to absorb it.
- Use an umbrella for high limits. Stacking an umbrella over general liability and commercial auto is usually more efficient than buying very high limits on each underlying policy.
- Read contracts before you sign. Additional insured and waiver of subrogation wording can require coverage you do not carry.
A note on umbrellas, because owners mix these up: a personal umbrella generally excludes business activities, so it will not protect the business, as our overview of how a personal umbrella works in Illinois explains. A business needs a commercial umbrella over its commercial policies. If you are pricing the personal side too, our breakdown of Illinois umbrella insurance cost covers that separately.
What Do You Need for an Accurate Business Insurance Quote?
TL;DR: Your payroll by job type, annual revenue, a clear description of operations, property and vehicle details, prior policies and several years of claims history.
A business quote is only as accurate as the information behind it, because a wrong payroll or classification carries straight through to the audit. Gather these before you call.
- A plain description of what you do. Every service, including side work. It sets your classifications.
- Payroll by type of work. Office, sales, field, drivers, part-time and seasonal, plus any owners who will be covered.
- Annual revenue, current and projected, and how much comes from each type of work.
- Property details. Owned or leased, construction, year built, and the replacement value of equipment, inventory and improvements.
- Vehicles and drivers. VINs, use, radius, and license information for everyone who drives for the business.
- Current declarations pages and loss runs. Your existing policies plus your carrier's claims history report.
- Contracts and leases. The insurance sections, so the quote matches what you have promised.
Opening a new business? You will not have loss runs or a mod yet, and that is fine. We work from projected payroll and revenue and revisit the estimates once you have real numbers.
Ready for a number that is actually yours? Start on our Illinois business insurance page or request a business insurance quote, and our Grayslake team will build it from your real payroll, classes and contracts. If you own the building your business operates from, the Illinois landlord coverage guide covers the property side.
The Bottom Line
There is no honest single number for what business insurance costs in Illinois. What does exist is a clear set of benchmarks and formulas. Illinois workers' compensation ranked 13th-highest in the country in Oregon's 2024 study at $1.34 per $100 of payroll, the Department of Insurance put the average voluntary manual rate at $1.21 for 2023, and NCCI's filing for 2026 proposed a modest decrease in loss costs. Everything else is priced on your class, payroll or revenue, property, vehicles and claims.
Control the cost by getting those inputs right: correct classifications, honest payroll, a managed claim record and limits that match what you have signed. Bring us your current declarations pages, loss runs and the insurance section of your lease, or call (847) 223-4747, and we will show you what your coverage actually costs and why.
Related Questions
What is the average workers' comp rate per $100 of payroll in Illinois?
The Illinois Department of Insurance's 2024 Workers' Compensation Oversight Report estimated the average voluntary-market manual rate for policies effective in 2023 at $1.21, down from $1.31 in 2022. It blends every job classification before experience mods and adjustments, so your own rates can be much higher or lower.
Why do online business insurance cost estimates for Illinois disagree so much?
Each website prices its own sample business with its own industry mix, employee count, revenue, limits and deductibles. No regulator publishes an official Illinois small business average, so those figures describe different businesses. A quote built on your own payroll, classes and property is the only reliable number.
Can a premium audit raise my business insurance cost after the policy ends?
Yes. Workers' compensation and many general liability policies are priced on estimated payroll or revenue and then audited after the policy period. If actual payroll or revenue was higher than estimated, or employees were in the wrong classification, you can owe additional premium. Updating your estimate mid-year helps avoid a large audit bill.
What is the fine for not carrying workers' comp in Illinois?
According to the Illinois Workers' Compensation Commission, an employer that knowingly and willfully fails to obtain coverage may be fined up to $500 for every day of noncompliance, with a minimum fine of $10,000. Officers can be held personally liable for unpaid penalties, face misdemeanor or felony charges, and the Commission may issue a work-stop order.
How does an experience mod change my Illinois workers' comp premium?
The experience modification compares your business's actual payroll and losses, usually over the latest three available years, with what is expected for your classifications. A mod of 1.00 is neutral, below 1.00 lowers the premium and above 1.00 raises it. Because it uses several years of history, claims and safety improvements affect premiums for years.
Are Illinois workers' comp rates higher than neighboring states?
In Oregon's 2024 Workers' Compensation Premium Rate Ranking, Illinois's index was $1.34 per $100 of payroll, 13th-highest nationally. Wisconsin was higher at $1.42, Missouri and Iowa were somewhat lower, and Indiana and Kentucky were much lower at $0.71 and $0.76. Individual employers' premiums still depend on their own classes and experience.
Last reviewed September 2026 by Joe Lapera, Licensed Illinois Insurance Agent (IL Lic #100722394). Figures verified against the sources linked above on that date.