Essential Takeaways:

• Workers’ comp premiums are based on a consistent three-part formula, not carrier discretion.
• Payroll is at the heart of the calculation, and it’s applied per $100 of wages.
• Classification codes assign a risk rate to every type of job in the business.
• The experience modification rate reflects your claim history and is within the owner’s control.
• Connecticut assessments add line items most owners cannot recognize without guidance from a broker.

Most Connecticut business owners receive a workers’ comp quote and either accept it or shop around for a lower rate. Neither approach, however, verifies whether the calculation behind the premium is correct in the first place.

Every workers’ compensation insurance CT premium is calculated using a defined formula based on three factors.

• Payroll divided by 100, then multiplied by a classification code rate
• Preceding result then multiplied by the experience modification rate
• Addition of Connecticut-specific assessments

Understanding these three inputs gives business owners a better framework for evaluating a quote rather than simply accepting it.

The Three Components of the Calculation

Component 1: Your Payroll Determines the Starting Point of Every Quote

Payroll is at the center of workers’ comp premiums because your exposure to risk rises as your workforce grows in size and wages. With rates applied per $100, larger payrolls will naturally have a larger base, even before other factors are taken into account.

Workers’ comp policies are written based on estimated payroll at the beginning of the year. However, this is not an exact science, so it must later be reconciled at an annual audit. If the actual payroll comes in higher than projected, the audit will result in additional premium being owed. As a result, reporting wages accurately at the quote stage is one of the simplest ways to avoid an unpleasant surprise.

Component 2: Classification Codes Assign a Risk Rate to Every Job in Your Business

NCCI classification codes are applied to every job function to indicate the physical hazard involved in that work. After all, a warehouse employee will be exposed to much more risk than an administrative employee at the same company. Unfortunately, misclassifying workers is very common and has significant consequences. On the flip side, however, if you find that a job category is miscoded and your business has been overpaying, you could see retroactive savings by filing a successful reclassification request with the NCCI. Code reviews can be worth the effort when job functions shift. 

Component 3: The Experience Modification Rate Reflects Your Claim History Compared to the Industry

The experience mod is based on your business’s actual claims history during the previous three years compared to what would be expected of a business in the same classification of a similar size. If your e-mod is below 1.0, your premium will be lower; e-mods higher than 1.0 raise premiums. Claims frequency and severity are therefore one of the most directly controllable variables in the formula. By implementing a documented safety program and a formal return-to-work policy for injured employees, you can keep these potentially costly factors in check.

How the Three Components Combine in Practice

Following is what each component reflects and where the business owner has leverage:

Component	What It Reflects	Who Controls It
Payroll	Size of the workforce and total wages	Business owner, through accurate reporting
Classification Code Rate	Risk level assigned to each job type	NCCI, appealable if incorrect
Experience Mod	Claim history vs. industry average	Business owner, through safety and claims management

How Connecticut-Specific Factors Affect the Final Number

Connecticut uses state-mandated rate filings, and the classification code rates they set are not the same as those used in other states. This means that if you have operations across the border in New York or Massachusetts, the same role could see different rates. This is related to the jurisdiction, not the insurance carrier.

In addition to the base calculation, Connecticut-specific assessments, minimum premium thresholds, and state surcharges are separate line items. Business owners who receive a first quote might not be able to recognize these charges without having a broker break them down. These are required additions, and they apply across the board. 

What Connecticut Business Owners Can Do To Lower Their Workers’ Comp Cost

The formula for determining workers’ comp rates may be fixed, but the inputs are not. Following are two concrete steps that can make a measurable difference:

Review Your Payroll Classifications at Every Renewal

Overclassification has a way of compounding quietly. A single miscoded category can overstate your premium every year without flagging itself. When job functions have changed or expanded, a classification review through a broker can make a big difference.

Build a Safety Program and a Return-to-Work Policy

These approaches can reduce the frequency and severity of claims, which pushes the experience mod down over time. A documented return-to-work policy is particularly effective because returning an injured employee to modified duty sooner results in a smaller claim, and smaller claims improve the mod at the next three-year review.

Understand What You Are Paying and Why With JMG Insurance

A business owner who understands the workers’ comp formula will find themselves in a stronger position at renewal time than one who simply accepts the number. Having a full grasp of what drives each line of the quote means knowing which questions to ask and where adjustments could be made.

Contact JMG Insurance today for a full review of your workers’ compensation insurance premium in CT. Founded in 1916 and offering multiple convenient locations, our highly skilled staff will break down every component of the calculation, identify where changes could reduce your costs, and make sure your business is not paying more than the formula requires.