Is workers' compensation required for my business?

It depends on the state, the number of employees, the type of work, and sometimes the entity structure. Most states require it once a business has employees, but thresholds and exemptions differ, and Texas is elective for most private employers. Confirm with your state's workers' compensation agency, or ask us to verify for each state you operate in.

Are volunteers covered by workers' compensation?

Generally no. Workers' compensation responds to employees, and volunteers usually are not employees. Some states permit an employer to elect coverage for volunteers, and some organizations address the exposure through other means, but it should never be assumed. Any organization relying on volunteers should confirm this specifically.

What is an experience modification factor?

The experience mod is a multiplier comparing your actual past losses to the losses expected for a business of your size and classification. Better-than-expected history produces a mod below the neutral value; worse-than-expected produces one above it. Because it is built from prior years, today's claims affect premium for years to come. It does not apply in the monopolistic fund states.

Why did I receive a bill after my premium audit?

Workers' compensation premium is based on actual payroll, and the deposit collected at the start of the term is only an estimate. At audit the carrier reconciles to real payroll by class code. Payroll growth, misassigned classifications, or uninsured subcontractors being added into your payroll all produce additional premium.

Part of our guides to commercial insurance and nonprofit insurance.

Coverage

Workers' Compensation Insurance in Missouri

Workers' compensation pays an injured employee's medical bills and part of their lost wages, and in exchange shields you from most work-injury lawsuits. Whether you must carry it depends on your employee count and industry.

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Covers employee injuries and work-related illnesses — medical care and a portion of lost wages. Requirements vary by state, employer size, and industry.

What It Covers

•Medical treatment for work-related injuries
•Rehabilitation services
•Disability payments (temporary and permanent)
•Death benefits for families
•Return-to-work programs
•Employer liability protection

Example Scenarios

•A staff member slips and breaks their leg while working—medical bills and lost wages are covered
•An employee develops carpal tunnel from computer work—treatment and rehab are covered
•An employee is permanently injured on the job and qualifies for long-term disability benefits

Who Needs It

•Organizations with employees (required in most states, though rules vary)
•Organizations with volunteers (some states require coverage)
•Nonprofits in high-risk fields (healthcare, services, outdoor work)

What It Pays For

✓Medical and hospital costs
✓Rehabilitation services
✓Lost wages (typically 66% replacement)
✓Permanent disability benefits
✓Death and burial benefits

What's Not Covered

✕Injuries an employee causes on purpose, or while intoxicated
✕Injuries that happen commuting to and from work
✕Volunteers, in most states, unless you elect to cover them
✕Independent contractors and 1099 workers
✕Pain-and-suffering damages beyond the statutory benefits
✕Injuries from horseplay or violating clear safety rules

Commonly misunderstood: Nonprofits frequently assume volunteers are automatically covered. In most states they are not — volunteer coverage usually has to be elected and added deliberately.

Why It Matters

Where a state requires it, workers' compensation is not optional. It pays for work-related injuries and, in exchange, is generally the exclusive remedy — which is what protects your organization from being sued directly by an injured employee.

Typical Coverage Limits

Statutory limits (set by state)

Typical Cost Range

Varies by organization — ask for a quote

Availability, eligibility, limits, exclusions, conditions and coverage terms vary by insurer, policy form, endorsement, jurisdiction and individual risk. This is general information, not insurance, legal or tax advice.

Underwriting and cost considerations

Workers' compensation insurance pays for medical care and a portion of lost wages when an employee is injured on the job or develops a work-related illness, under the rules of the applicable state workers' compensation system.

What underwriters evaluate

Payroll broken out by governing classification code for each job function, not a single blended figure
The experience modification factor and the actual loss history sitting behind it
Prior loss runs read for frequency, for open reserves, and for claims that have not yet fully developed
A written safety program and evidence that it is actually implemented through documented training
Return-to-work and light-duty capability, since lost-time duration drives severity more than claim count
Owner, officer and partner inclusion or exclusion elections, which differ from state to state
Use of subcontractors, temporary staffing and 1099 labor, and whether certificates are collected and current
Class-specific hazards such as work at height, confined space, heavy equipment, driving and chemical handling

What affects the premium

Payroll by classification code, applied against each state's rate or loss cost for that class
The classification codes assigned, which is where most disputes and most legitimate savings live
The experience modification factor, built from the employer's own prior losses versus expected losses
State of operation, since rates, benefit levels and system rules differ substantially between states
Any schedule credit or debit and carrier pricing programs, where the state permits them
Claim frequency and lost-time duration, which feed the experience mod for years afterward

Common claim types

Strains and sprains from lifting, pushing, pulling and repetitive motion
Slips, trips and falls, including falls from ladders, scaffolds and elevated surfaces
Struck-by and caught-in incidents involving equipment, tools or materials
Motor vehicle accidents occurring while an employee is driving in the course of employment
Cumulative trauma and occupational illness claims that surface long after the exposure

Common gaps and misunderstandings

Requirements vary by state, employer size and industry; Texas is elective for most private employers
A few states use monopolistic funds, where coverage must be bought from the state rather than a private carrier
Volunteers are generally not covered by workers' compensation, including at nonprofits
Owners, officers and partners are frequently excluded by default and must elect in where the state allows it
Work performed in a state not listed on the policy, or payroll assigned to the wrong class, creates real exposure

Commonly purchased alongside

General Liability
Employment Practices Liability
Hired & Non-Owned Auto Liability
Commercial Property
Umbrella / Excess Liability

Frequently asked questions

Is workers' compensation required for my business?: It depends on the state, the number of employees, the type of work, and sometimes the entity structure. Most states require it once a business has employees, but thresholds and exemptions differ, and Texas is elective for most private employers. Confirm with your state's workers' compensation agency, or ask us to verify for each state you operate in.
Are volunteers covered by workers' compensation?: Generally no. Workers' compensation responds to employees, and volunteers usually are not employees. Some states permit an employer to elect coverage for volunteers, and some organizations address the exposure through other means, but it should never be assumed. Any organization relying on volunteers should confirm this specifically.
What is an experience modification factor?: The experience mod is a multiplier comparing your actual past losses to the losses expected for a business of your size and classification. Better-than-expected history produces a mod below the neutral value; worse-than-expected produces one above it. Because it is built from prior years, today's claims affect premium for years to come. It does not apply in the monopolistic fund states.
Why did I receive a bill after my premium audit?: Workers' compensation premium is based on actual payroll, and the deposit collected at the start of the term is only an estimate. At audit the carrier reconciles to real payroll by class code. Payroll growth, misassigned classifications, or uninsured subcontractors being added into your payroll all produce additional premium.

Coverage, exclusions and limits vary by carrier and policy form. Review the applicable policy language, and confirm requirements for your state and operations.

Nonprofit Workers' Comp: Employees vs. Volunteers
Who counts as an employee, how volunteers are usually treated, classification traps, and what drives a premium audit. Rules vary by state.
Does an Auto Repair Shop Need Workers' Comp Insurance?
Whether workers compensation is legally required depends on your state and your headcount — Missouri sets the threshold at five employees, Kansas at $20,000 of payroll. What you give up by staying uninsured is exclusive-remedy protection.
Auto Repair & Services Insurance Requirements in Kansas
A Kansas auto repair shop needs a layered insurance program—garagekeepers liability, commercial auto, general liability, and workers' compensation—because personal auto policies exclude business operations entirely.
Workers' Comp for Roofing Contractors: A Practical Guide
Roofing is one of the hardest classes in the workers' comp market. Here is what the policy actually pays, how state requirements differ, what underwriters look at, and how an uninsured sub becomes your problem at audit.
Contractors Insurance: What You Need and What It Covers
A working guide to contractor insurance from an underwriting perspective: which coverages you actually need, how they interact, and the gaps that show up on real jobs.

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