How Much Is Workers’ Comp Insurance?

Workers' compensation premiums for small businesses depend on several factors, but some are within your control.

Updated Apr 8, 2022 · 7 min read Written by Whitney Vandiver

Whitney Vandiver
Writer | Home services, Home warranties

Whitney Vandiver writes for NerdWallet, currently focusing on home services, and has been published in the The Washington Post, the Los Angeles Times, The Seattle Times and The Independent. When she's not writing, she enjoys reading with a good cup of coffee and spending time with her husband and son. She is based in Houston.

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Rick VanderKnyff
Senior Assigning Editor | Los Angeles Times; University of California, San Diego; Microsoft

Rick VanderKnyff leads the news team at NerdWallet. Previously, he has worked as a channel manager at MSN.com, as a web manager at University of California San Diego, and as a copy editor and staff writer at the Los Angeles Times. He holds a Bachelor of Arts in communications and a Master of Arts in anthropology.

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MORE LIKE THIS Small Business

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Annual premiums for workers' compensation insurance can cost a small business anywhere from a few hundred dollars to a few thousand dollars per $100,000 in payroll, depending on factors like the business’s industry, location and claims history.

While your final cost for workers’ compensation insurance is up to experienced actuaries, understanding how it is calculated can simplify the insurance process for your small business — and save you money along the way.

Which factors affect premiums?

Multiple factors go into calculating insurance premiums. Here are the most common considerations for workers’ compensation insurance.

State requirements

Many states have requirements for when a business must provide workers’ compensation insurance to employees. Some states require coverage with just one employee, while others don’t require it until a business hires a minimum number of employees.

Some states have requirements for which types of employees you have to cover. For example, California requires all employees to receive workers’ comp benefits. [0]

In states where there is a distinction between which types of employees must be covered, your employees’ classifications can directly affect your workers’ compensation premiums.

Takeaway: Understand workers' compensation insurance requirements by state , particularly in the states where you do business.

Type of work/industry

The type of work a small business performs has a significant influence on workers’ compensation insurance premiums. Because some industries have more risk — think of the dangers of crab fishing compared with those of data entry — certain types of businesses will always have higher premiums than others.

The good news is that small-business insurance companies have a consistent way to evaluate industries’ potential risk. Each industry is assigned a classification code based on its type of work. Farming, for instance, can be broken up into multiple industries based on the final products, such as vegetables, eggs or flowers. Because each type of farming has its own methods that carry its own risks, each type is given its own classification code.

For each of these codes, the National Council on Compensation Insurance analyzes historical data to determine the average cost of each industry’s workers’ compensation claims in each state, says Jeff Eddinger, senior division executive with the NCCI. This allows insurance agencies to determine the financial risk of a business’s industry, which is represented as a rate per $100 of payroll. For example, if pet sitting has a rate of $2.19, that means an insurer can expect to lose that much in workers’ compensation claims for every $100 a pet-sitting business pays its employees. But even that isn’t always straightforward.

Industry rates can become more complicated for businesses that hire employees to perform different types of work. A pest control company, for example, might hire four employees to treat residential areas but also have two clerical employees in the office to handle the paperwork.

In cases like these, Eddinger says, where a business has employees that perform different types of work, it will fall under a governing classification that most closely captures its primary industry, but each employee is rated for premiums based on their type of work.

If the pest control company is based in Georgia, the four employees that spray yards will be rated around $2.82 for every $100 of payroll. However, because the office staff has much less risk when it comes to potential workplace injuries, these two employees will be rated only around 8 cents for every $100 of payroll. This not only allows insurers to more comprehensively assess a small business’s risk but it also fairly prices workers’ compensation premiums.

Keep in mind, Eddinger says, that for the majority of states these costs consider losses only and don't take into account insurance companies’ internal expenses. The additional costs added to these industry rates will vary when insurers calculate premiums.

Additionally, some states use their own industry rates instead of the NCCI rates, which creates even more variety among industry rates — and premiums — between states. [0]

National Council on Compensation Insurance . NCCI State Map. Accessed Apr 6, 2022.

Takeaway: Industries with a higher risk of injury have higher premiums.

Additional workplace activities

If employees are doing additional activities that can increase their risk of a workplace injury, this can mean higher workers’ compensation premiums as well. This is especially relevant for businesses where employees drive to worksites.

"If there’s a plumber who also drives a decent amount as part of their job, they’re not just working on one site," says Sandra Kipust, senior director and actuary with Liberty Mutual Insurance. "They’re traveling from house to house to house doing their work."

Vehicle accidents can also lead to workers’ compensation claims, Kipust says, which is why driving is considered a riskier activity. So the more employees who spend time on the road, the higher your premiums are likely to be.

Takeaway: Driving to job sites and other additional activities can raise premiums.

Size of payroll

The more employees a small business employs, the more potential exposure it has to workplace injuries. It makes sense then that the more employees a business has, the higher its premium will be.

Payroll also affects premiums with respect to wages. If an employee is unable to report to their job because of a workplace injury, workers’ comp insurance can pay the employee for lost wages. How much an employee can receive as part of lost wage replacement is a matter of state requirements and the employee’s current pay rate, which means higher salaries can lead to higher losses for insurance companies.

Takeaway: More employees means more risk and higher premiums.

Claims history

Insurance providers also look at a business’s risk as an individual company by calculating its experience modification rate, or EMR. An EMR looks at how many previous workers’ comp claims a business has and how severe they were in terms of cost, then quantifies those in terms of risk.

"An EMR looks at frequency and severity separately so that it’s a fair calculation and fair assessment," Kipust says. "Prior loss experience is probably the most predictive variable for future losses."

But claim frequency doesn't communicate the same risk to insurance companies as the severity of previous claims. Because multiple workers’ compensation claims indicate a less safe workplace, a high number of workers’ comp claims can impact your premiums, even if they were for small payouts. This means, with all other factors being equal, if two companies provide identical services, the company with 10 claims for $3,000 each will be considered a greater risk than the company with one claim for $30,000.

"If there’s a higher potential for loss, then premiums are higher," Kipust says. "It really does go hand in hand."

Takeaway: Because of how workers' compensation works , your company’s workers’ comp claims history will affect premiums.