The worker’s comp will renew. You hired two persons in the previous year; still nobody was seriously hurt, and you get the premiums that have gone up. Or maybe you’re shopping for the first policy, plus the three insurers that have given you those three distinct numbers for that same business.
Does that sound familiar? Then you’re not alone. Worker’s compensation for the insurance costs for most business owners will pay each year without even seeing how the numbers that are built. There's great news for math that's a mystery. Once you can understand a handful of inputs behind your premium that you can check and question, and most of the cases, then lower that.
For this guide, we will be breaking down how exactly the worker’s compensation that’s calculated for the U.S. can drive the costs up or down, for the real estate rates that can look like, and how it is for getting a quote that you can actually trust.
The Short Answer
There’s no type of flat price for those worker’s comp. The premiums that are charged for every $1000 of payroll, plus the rate, will depend on the kind of work that the employees can do, the state that they can work in, and your claims history. For the most recent national comparison, the main median state premiums for that index were $1.09 and $100 for payroll, but the state rates ranged from 50 cents for North Dakota to $2.52 for Hawaii for the individual job classifications that will sit far above or below averages.
Key Takeaways
- Major workers compensation that’s priced for the payroll, not just the headcount.
- The major formula for (Payroll ÷ 100) for the class code rate × experience modification factor is followed for the credits, discounts, and state charges.
- The class codes plus the experience mod for those two biggest layers towards the influence.
- Claims that are getting fewer but much more expensive: The NCCI will estimate the lost-time claim frequency that falls about 2% for 2025, while indemnity and medical costs for each claim can rise about 4%.
- For accurate quote needs for those accurate inputs, payroll based on job type, job descriptions, subcontractor certificates, or the loss runs.
What Workers' Comp Covers, and Why the Price Matters
Worker’s compensation that can pay those medical bills plus share those lost wages when the employee gets hurt or becomes ill because of their job, no matter who exactly was at fault. For the exchange, employees will generally give up the right to sue the employer for the injury. Most of the policies do include the employer’s liability coverage for the lawsuits that can still happen.
Almost each state does require employees to carry in once they can reach the set number for employees. Texas is the noticeable exception, where most of the private employers that will choose are opting out. If you’re still working out whether you require a policy at all, just start from this article on common worker’s comp myths.
Why does the cost deserve any kind of attention? As the stakes are actually real. Those private employers actually reported around 2.5 million nonfatal injuries plus illness for 2024, a rate of the 2.3 cases for 100 full-time workers, according to the U.S. Bureau of Labor Statistics. Another of the 5,070 workers died from those work-related injuries for the year, about each of the 104 minutes. The claims for these are the workers' comp rates that are built on.
How Workers' Comp Premiums Are Calculated
Here’s the basic formula for insurers that are built for most states:
Premium = (Payroll ÷ 100) × Class Code Rate × Experience Mod
After that, the insurer can apply for any of those schedules, debits or credits, expense constants, premium discounts, and state assessments. Let’s walk through each price, because for one of the places for your premium, that can go wrong or right.
Step 1: Payroll
Payroll is the major starting point. The insurers can divide the annual payroll for each type of job category by 100, because the rates get quoted for $100 of the payroll. The payroll here actually means "remuneration," and it has specific rules. Under these NCCI rules, for example:
- Included: Wages and salaries, bonuses, and commissions, plus the value of meals that’s provided as the major part to pay (for the extent that’s shown for your records).
- Excluded: The tips and gratuities that are received for the employees and the employer contributions for group insurance or those group pension plans.
Note: States that can run for their own rating bureaus, like New York and California, that can set their own payroll rules, plus the treatment of items like overtime that can differ from the state. Keeping payroll for records that’s broken down clearly for the auditor, plus asking the broker how exactly the state counts each of the items.
Step 2: Class Codes and Rates
Each job that’s assigned for the classification code can reflect on how risky that work is. For an office worker and roofer that might work for that work, for their payroll, that’s rated each of them in a different way. Each of these codes has its own rate for $100 payroll that's set for the years of claims data for that type of work for your state.
That’s why the industry can matter a lot. A construction crew, the auto repair shop, and the law firm that will see each of the different pricing. We will cover the different industry details for our guides for workers' compensation in construction and auto repair technicians, plus the law firms.
Note: Misclassification is one of the most common plus expensive workers’ comp mistakes. If the employees that are placed for the higher-related code for their actual duties can justify, you can easily overpay each year. If they are placed for the lower-related code, then you can face a major bill for the audit. Simply review the codes for those real job duties for each renewal.
Step 3: Your Experience Modification Rate (EMR)
Once the business becomes bigger enough for qualification, the rating bureau will compare the claims history, generally over the years, with what has been expected for the businesses for the type and size. The result is your experience modification rate, or mod.
- A mod of 1.0 means the claims are in line with the expectations.
- A mod of below 1.0 means better than the expected results for a lower premium.
- A mod over 1.00 directed towards worse results as well as higher premiums. The calculation separation for each claim towards the "primary" portion for an “excess” portion plus gives the primary portion a higher weight. Under simple terms, how much of the claims matters more than how big a single claim is. A constant trickle of small injuries will hurt your MOD much more than a major unlucky accident. NCCI has moved the state-specific split points plus caps for large claims, so the exact threshold can vary by state.
Step 4: Credits, Discounts, and Charges
The numbers after the mod get quite the final amount. That depends on the state and insurer. You can also debits or credit factors like the management quality or safety programs, a great discount for those larger policies, or an expense constant, plus the state assessment and the surcharges.
From Payroll to Premium – The Building Blocks of Your Workers' Comp Bill
Let's Do Some Maths: A Working Example
Numbers can make this real, so here are some of the basic instances through the use of the 2024 National Median Index Rate of $1.09 for every $100 of the payroll from the state of Oregon for the premiums rates that apply. Imagine a business that has $500,000 for annual payroll.
- Divide payroll for 100: $500,000 ÷ 100 = 5,000 units.
- Applying Rate: 5,000 × $1.09 = $5,450 (Annual Premium)
- Applying Experience Mod: Those same businesses that can pay for different amounts that can depend on the mods.
- Mod 0.85: $4,632.50
- Mod 1.00: $5,450
- Mod 1.25: $6,812.50
Those same payrolls, the same rate, the same state, and the major difference of around $2,182 for a year—that's purely based on the claims history. Because that type of mod generally looks back for three years, that type of gap will repeat for multiple renewals.
Note: The examples are just an instance, not an actual quote. The basic median index can blend 50 job classifications under one figure for the actual premiums that depend on the class codes, the state rates, plus the mod for the insurer credits plus chargers.
How Much Does Workers' Comp Cost by State?
Location can change everything. The Department of Consumer and Business Services in Oregon has published highly cited comparisons for workers' comp rates, applying the same mix of 50 job classifications for each of the state’s rates for January 2004. Here’s exactly what that exactly looks like, along with the same $500,000 that can cost for each of the index rates.
Workers' Comp Premium Index Rates For State (Rates in Effect Jan. 1, 2024)
Note: For four states, Ohio, North Dakota, Wyoming, and Washington, the compensation for workers is provided for the state fund rather than the private insurers. For Texas, most private employees will opt out of the system for the "non-subscribers," but they can face direct employee lawsuits and must file different notices with the different states. For the Houston commercial insurance guide that can cover Texas rules in more detail.
Why One Claim Can Change Your Premium
The rates that are built for the claims can help for knowing what type of claims will actually cost. Based on the National Safety Council, through the use of NCCI data, the average compensation of workers for the compensation claims for the injuries for 2022 and 2023 can cost $47,316. The same causes that will cost much more.
The basic national trend that makes prevention highly valuable. The NCCI’s 2026 State of the Line found for those lost time claims that the frequency fell for the estimated 2% for 2025, which will continue the long decline. But the costs of each claim will go high; medical and indemnity severity does rise about 4% for 2025. That's since, for 2014, the medical severity has risen 28% for the indemnity severity of 71%. Under fewer claims, but the ones that can are actually more expensive.
On the bright side, the compensation to the workers' comp market is good and healthy. The NCCI reports around 90.6%, which is combined for the ratio for 2025, the line for the 12th consecutive year of the underwriting profit. For the employers. For the employers that have great safety records, that simply means a competitive market plus the room for negotiation.
8 Practical Ways to Lower Your Workers' Comp Premium
- Audit the Class Codes: Make sure that each of the employees has the code that can match those real duties, plus split the payroll in a correct manner for one person for two kinds of work, where the state’s rules can allow it.
- Keep The Payroll Records Audit-Ready: Documents excluded, separate tips plus tracking payroll for class throughout the year.
- Collect certificates from subcontractors If the subcontractor got no coverage for their own, their payroll will be added under the policy for audit.
- Invest in safety where claims actually happen: Use your own loss runs for targeting the different injuries that you witness most, plus learn from the OSHA guidance. The article on OSHA compliance and proactive risk management is a perfect starting point.
- Report injuries the same day Any type of prompt reporting that can get employees the right type of care faster plus helps keep the claims growing.
- Build a return-to-work program: Light-duty or modified roles will help those injured employees recover while they can stay connected for work, which can shorten lost time.
- Choose pay-as-you-go billing: Payment of premiums that’s based on real payrolls for each pay period that can avoid large deposits plus audit surprises.
- Review the Mod worksheet for Every year: Errors in claim values, payrolls, or certain class codes will inflate your mod. Closed claims that are still reserved are worth asking about.
For those high-hazard operations, the guide for workers’ comp for high-risk industries can go deeper for lost control.
How to Get an Accurate Workers' Comp Quote
A quote is only great for the information under it. Give the insurer a rough guess as to what you get for a rough number back, followed by the adjustment in audit. Before you can request quotes, simply gather:
- Estimate of payrolls for the 12 months, broken down as in job type.
- A basic short description of what each of the groups of employees does.
- Loss runs based on the past three to five years for the prior or current insurer.
- The current experience mod worksheet, if you need one.
- Certificates of insurance for each subcontractor type that you use.
- The states where employees live and work, which includes the remote staff.
- Details of the safety programs, training, and return-to-work practices.
When the quotes arrive, compare these to the bottom line. Check each of the insurers that’s used for class codes as well as the payroll, look at exactly how the premium gets billed, and ask for whatever comes from the policy, like the safety consulting plus claims support. The guide for comparing business insurance quotes without overpaying will walk you through the process, and the business insurance renewal checklist will help you prepare for the next year.
Note: The premiums are for the quote for the estimates. Most of the workers' comp policies that are audited for the policy year end are for the final premium that’s backed by the payroll that’s actually paid. If the business grows, then expect additional bills; if this shrinks, you can receive the refund.
Frequently Asked Questions
How much does workers' comp cost per employee?
The workers’ comp is actually not priced for each employee. This is priced at $100 for the payroll for each of the job classifications. The two businesses for the same number of employees can pay for very different amounts for the payroll, job types, or those claims that histories will differ.
What is the average cost of workers' comp?
There’s no basic single national price, but for the 2024 Oregon Premium, that can be a rate study for the median state index rate for $1.09 for $100 of the payroll, through the state indexes that range from $0.50 for North Dakota to $2.52 in Hawaii. The basic rate that will depend on the class codes and state as well as the experience mod.
Why did my workers' comp premium go up?
The common reasons will include those higher payroll for audits, a basic change for class codes, the increase for your experience mod for the claims, uninsured subcontractors for the payroll, or those rate changes for your state.
What is a good experience modification rate?
For the mod below, the 1.00 premiums for claims history are better than expected for the businesses for your size plus type, which can lower the premium. A mod above the 1.00 increases that. Some of the clients plus those general contractors that look for the mod before you can award work.
