Workers Compensation Insurance: Cost, Requirements & Quotes

What workers compensation insurance actually covers

Workers compensation is a two-part policy. Part One pays the benefits your state requires when an employee is hurt or becomes ill because of work. Part Two — employers liability — covers certain employee-injury lawsuits that fall outside the normal workers comp benefit system.

The distinction matters because employers liability is not a substitute for general liability, commercial auto, or professional liability. Those policies cover third parties. Workers comp and employers liability cover your employees.

Part One: state-law benefits for injured employees

When an employee is injured on the job, Part One pays for medical care, lost wages, permanent injury benefits, and death benefits. Employees who accept workers comp benefits typically waive negligence lawsuits against the employer.

Benefits and claim handling vary by state. The policy responds to the state statute where the employee works, not where your business is headquartered.

Part Two: employers liability

Employers liability can respond when an employee-injury claim does not fit neatly into the workers comp statute. Examples include third-party-over actions, dual-capacity claims, and consequential bodily injury claims by a spouse or dependent. These are uncommon but can be expensive.

What workers comp does not cover

Workers comp pays for specific costs when an employee is hurt or becomes ill because of work. It does not replace GL, auto, or professional liability. Most contractors need both workers comp and general liability as separate policies.

When contractors are required to carry workers comp

Workers comp requirements are state law. There is no single national employee-count threshold. Most states require coverage once you have employees, but the exact trigger depends on where you work, what you do, and who you hire.

State employee-count thresholds vary

New Jersey requires all employers not covered by federal programs to carry workers compensation coverage or be approved for self-insurance.

Colorado requires employers with one or more employees to maintain workers compensation insurance at all times, including part-time, full-time, and family-member employees.

Other states set higher thresholds or allow exemptions for certain industries. Employee-count rules and exemptions vary by state.

Construction subcontractor rules add obligations

Construction businesses that use subcontractors often face additional compliance duties. Colorado requires construction businesses to either provide coverage to contractors or get proof of workers compensation compliance from everyone with whom they have a direct contract.

GC and contract requirements as a trigger

Even in states that exempt sole proprietors, a GC or project owner may require a workers comp certificate before you can start work. The contract requirement creates a practical obligation regardless of state law.

Sole proprietors and officer elections

Some states let sole proprietors, partners, and corporate officers elect to exclude themselves from coverage. Others require inclusion. Check your state rules and your contract language before relying on an exclusion.

Answer a few questions about your employees, state, subcontractors, and contracts to find out whether you need workers comp coverage right now.

How carriers price a workers comp policy

Workers comp is not priced from a flat national rate. Four factors combine to produce your premium, and each one can raise or lower what you pay.

Class codes group work by risk level

Every employee is assigned to a classification based on the work they perform. A roofer falls under a different class code than an office manager. The class code carries a rate that reflects the injury frequency and severity for that type of work.

Payroll is the premium base

Premium is calculated per $100 of payroll under the assigned class code. More payroll means more premium. New Jersey identifies employee work classifications, employer claims experience, and payroll as the premium bases.

Experience modification compares your losses to peers

NCCI explains that experience rating compares an individual employer's actual payroll and loss data with similarly classified employers over a period of time. Better-than-average experience earns a credit mod below 1.0. Worse-than-average experience carries a debit mod above 1.0.

A mod of 0.85 cuts your premium by 15%. A mod of 1.25 adds 25%. The mod is the single biggest variable for established contractors with payroll above the state eligibility threshold.

State loss costs and carrier filings set the rate level

Each state publishes loss costs or advisory rates. Carriers file their own multipliers on top of those loss costs. Filed rating support can include loss cost multiplier actuarial exhibits.

Renewals can change even when payroll is stable because state filings, carrier loss cost multipliers, and experience modification all move independently.

What workers comp costs for contractors

The Hartford reports that many small businesses pay about $81 per month for workers compensation, and some policies can start as low as $13 per month for low-risk businesses.

That $13 figure applies to low-risk office or retail businesses with minimal payroll. Contractors typically pay more because construction class codes carry higher rates. A framing contractor with $250,000 in annual payroll pays far more than a solo bookkeeper.

Injury rates differ by trade

BLS reported a 2024 total recordable injury rate of 2.2 cases per 100 full-time workers for specialty trade contractors overall. But rates vary widely by segment.

Higher injury rates mean higher class code rates, which means higher premiums for the same payroll. A framing contractor pays roughly 2-3 times the rate of a painting contractor per $100 of payroll because the expected claim frequency and severity are higher.

Your actual premium depends on your specific class code, payroll, state, and experience mod. Published averages rarely match what a specific contractor pays.

What GCs and owners require on your workers comp certificate

Construction contracts commonly require specific workers comp and employers liability terms on the certificate of insurance. Here is what two real public-entity contracts require.

Statutory workers compensation on the certificate

"Statutory" means the workers comp benefits required by your state's law. Workers comp certificates typically show "statutory" in the limits column rather than a dollar amount, because the benefit schedule is set by state statute, not by a policy limit you choose.

Employers liability limits: $100K vs $500K vs $1M

Basic employers liability limits are usually $100,000 per accident, $500,000 disease-policy limit, and $100,000 disease-each employee. Policyholders often increase limits because of contractual requirements or umbrella-carrier requests. Limits of $500,000/$500,000/$500,000 or $1,000,000/$1,000,000/$1,000,000 are common.

Waiver of subrogation and when contracts require it

A waiver of subrogation is an insurer's acknowledgment that it has no right to subrogate against a liable third party after paying a covered loss. In construction, the upstream party (GC or owner) asks for this so your workers comp carrier cannot sue them to recover claim payments if the upstream party contributed to the injury.

Not every policy includes waiver of subrogation automatically. You may need to request the endorsement and name the party. Ask your carrier before the certificate is issued.

Certificate timing and proof before work starts

Both Yolo County and Chicago require certificates before work starts. If your policy is not yet in force or your carrier cannot issue the certificate in time, you cannot mobilize. Order the policy early enough to get the certificate issued and delivered before your start date.

How uninsured subcontractors raise your premium at audit

A premium audit can add thousands to your bill if subcontractor records are missing. Here is how it works.

Uninsured sub payroll becomes your chargeable payroll

When you hire a subcontractor who does not carry workers comp, your carrier can treat the payments to that sub as your payroll at audit. The auditor applies your class code rate to those payments. If you paid a sub $80,000 and your class code rate is $15 per $100 of payroll, that is $12,000 in additional premium you did not budget for.

What proof to collect from every subcontractor

Before a sub starts work, collect a current certificate of insurance showing workers comp coverage for the dates they will be on your job. If the sub is a sole proprietor who has elected out of coverage, get the state rejection or exemption form. Keep these on file for the auditor.

Tracking payroll by class during the policy term

Separate your payroll records by class code throughout the year. If employees do multiple types of work, split their payroll across the correct codes. Clean records make the audit faster and reduce the chance of misclassification that inflates your premium.

Use this checklist to organize your records before or during a premium audit. It covers payroll by class code, subcontractor certificates, officer elections, and employee job descriptions.

Not every carrier insures every contractor class

Carriers do not insure every contractor class in every state. A carrier that quotes electricians may decline tree service, demolition, roofing, or other higher-hazard work. Class code, state, payroll size, and loss history all affect which carriers will consider your account.

This matters because workers comp prices can vary even when two carriers review the same payroll and class code. Comparing more than one carrier gives you a better chance of finding a policy that fits your trade, state, and contract requirements.

Compare workers comp quotes matched to your trade

Submit one quick form. The marketplace compares your account with carriers that insure your kind of work, and licensed insurance professionals can review the options.

Your workers comp premium depends on your class code, payroll, state, and experience mod. A published average cannot tell you what you will pay. Carriers that insure your specific type of work can.

Compare carriers that insure your trade. Get a smart match in minutes, free.