Missouri Workers' Compensation Insurance
The Allen Thomas Group, an independent, family-owned agency licensed in Missouri since 2003, places full workers' compensation coverage directly with 15+ A-rated carriers, including Travelers, Liberty Mutual, Hartford, Cincinnati, Auto-Owners, AmTrust, and Employers, since Missouri is a private-carrier state, not a monopolistic state-fund state, so we can shop your actual policy rather than only offering a coverage gap fix. We build that program around Missouri's one-employee construction threshold, its NCCI experience rating system, and the assigned risk pool employers fall back on when the voluntary market won't write them.
Carriers We Represent
Last Updated: August 6, 2026
What Is Missouri Workers' Compensation Insurance?
Missouri workers' compensation insurance covers medical benefits and lost wage replacement for employees injured on the job, purchased from a private carrier under a system rated by the National Council on Compensation Insurance (NCCI). Unlike Ohio and three other remaining monopolistic-fund states, Missouri employers buy this coverage directly from carriers like Travelers, Liberty Mutual, and Hartford, or self-insure if they qualify. There is no state fund standing between the employer and the market. That means The Allen Thomas Group can place the entire policy for a Missouri employer, not just a coverage gap around a state-run program.
Missouri also sets a construction-specific threshold that catches many small contractors off guard: coverage is required at just one employee in the construction industry, compared to five employees for most other Missouri businesses.
What Does Workers' Compensation Insurance Cost in Missouri?
Cost is driven by payroll, NCCI class code, and your experience modification factor, not a flat state rate. A construction employer with a poor claims history can pay several times more per $100 of payroll than an office-based business with the same headcount. The table below is a benchmark, not a quote.
| Employer Type | Typical Rate per $100 Payroll | Driven Mostly By |
|---|---|---|
| Office / clerical | $0.20 – $0.60 | Low injury frequency class code |
| General/light manufacturing | $2.00 – $5.00 | Class code + experience mod |
| Construction trades | $6.00 – $18.00+ | High-hazard class code, one-employee threshold, e-mod |
Missouri's NCCI loss costs for 2026 rose only 1.3% statewide, the second increase in six years, per the Missouri Department of Commerce and Insurance, with Manufacturing up 2.9%, Office & Clerical up 2.1%, Contracting up 0.3%, and Goods & Services up 0.4%.
What a Missouri Workers' Compensation Policy Should Include
- ✓Medical & Indemnity Benefits, for injured-employee medical care and lost wage replacement
- ✓Employer's Liability (Part B), civil-suit protection automatically bundled into a Missouri private-market policy
- ✓Correct NCCI Class Codes, since misclassified payroll drives premium errors both ways
- ✓Experience Mod Review, to confirm your e-mod factor is calculated correctly before renewal
Is Workers' Compensation Insurance Required for Missouri Employers?
Yes, and the threshold depends on your industry. RSMo § 287.030 requires construction industry employers to carry workers' compensation once they have just one employee, while most other Missouri businesses aren't required to carry it until they reach five employees. The Missouri Department of Labor and Industrial Relations confirms employers who skip required coverage remain exposed to civil lawsuits from injured employees outside the workers' comp system entirely, the exact protection the policy is built to prevent.
How Does Missouri's NCCI Experience Rating Affect My Premium?
Your claims history relative to your industry average moves your rate up or down from a neutral 1.00. Missouri is an NCCI experience-rating state: a policy has to generate more than $7,000 in annual premium (or more than $3,500 for two consecutive years) to qualify for its own experience modification factor, and a brand-new business starts at the neutral 1.00 mod until it has enough claims history to be rated individually. Self-insured Missouri employers must obtain their own annual Missouri-only experience mod directly from NCCI, per the Missouri Division of Workers' Compensation. A mod below 1.00 lowers your premium; a mod above 1.00 raises it, and one severe claim can move it for three years.
What Is the Missouri Workers' Compensation Assigned Risk Pool?
It's the coverage of last resort for employers the voluntary market won't write. The Missouri Workers' Compensation Assigned Risk Pool, governed by 20 CSR 500-6.960, is administered under contract by Travelers Property Casualty Company of America. Employers land here after being declined by standard-market carriers, typically due to a poor claims history, a high-hazard class code with limited carrier appetite, or too little operating history to underwrite confidently. Assigned risk premiums generally run higher than voluntary-market rates, which is exactly why shopping the voluntary market first, before assuming assigned risk is the only option, is worth the extra step.
What Happens If a Missouri Employer Doesn't Carry Required Workers' Compensation Insurance?
The employer loses the protection the system is built around and stays exposed to a direct lawsuit. An employer who fails to carry required coverage can be sued directly by an injured employee in civil court, without the exclusive-remedy protection a compliant workers' comp policy provides, and can face separate penalties from the state. For a construction employer at the one-employee threshold, this exposure attaches almost immediately once that first hire is made.
Why Missouri Employers Choose The Allen Thomas Group
Because Missouri is a private-carrier state, we can place your actual workers' compensation policy directly, not just a stop-gap fix around a state fund. As an independent, family-owned agency, we shop your program across 15+ A-rated carriers, review your NCCI classification and experience mod for errors, and help you avoid landing in the assigned risk pool when a voluntary-market option is available.
Frequently Asked Questions
Can The Allen Thomas Group actually place my Missouri workers' comp policy?
Yes. Unlike Ohio and the three other monopolistic-fund states, Missouri is a private-carrier state, so The Allen Thomas Group places the full policy directly through carriers like Travelers, Liberty Mutual, Hartford, Cincinnati, Auto-Owners, AmTrust, and Employers, not a workaround coverage.
Do I need workers' comp if I only have one employee?
If you're a construction employer, yes. RSMo § 287.030 requires coverage at just one employee for construction trades. Most other Missouri industries aren't required to carry it until they reach five employees.
What is an experience modification factor?
It's a multiplier NCCI applies to your base premium based on your claims history relative to your industry average. A new business starts neutral at 1.00; a mod below that lowers your premium, a mod above it raises it, and one severe claim can affect it for up to three years.
What if no carrier will write my business?
The Missouri Workers' Compensation Assigned Risk Pool, administered by Travelers under 20 CSR 500-6.960, exists as coverage of last resort. Premiums there generally run higher than the voluntary market, so it's worth shopping the standard market first.
Can I self-insure my Missouri workers' comp?
Qualified employers can self-insure through the Missouri Division of Workers' Compensation, but self-insured employers must obtain their own Missouri-only NCCI experience mod annually and administer claims directly, a real administrative lift most small and mid-size employers don't take on.
How much did Missouri workers' comp rates change for 2026?
NCCI's approved 2026 loss cost filing raised statewide rates by just 1.3%, only the second increase in six years, according to the Missouri Department of Commerce and Insurance, with the increase varying by industry class.
Get the Right Workers' Compensation Coverage for Your Missouri Business
The Allen Thomas Group works with 15+ A-rated carriers to find the right workers' compensation program for your Missouri operation, whether that's standard voluntary-market coverage, experience mod review, or a path out of the assigned risk pool.
Missouri Business Hubs We Serve
The Allen Thomas Group places workers' compensation coverage for employers across Missouri's major business and industrial centers.