Monopolistic State (Workers Comp)
Also known as: Monopolistic State Fund, Mono-State
In a monopolistic state, the state government operates the ONLY source of Workers Compensation insurance — no private carrier (Hartford, Travelers, AMTrust, Berkshire Hathaway, etc.) can write WC in that state. Four US states are currently monopolistic: Ohio (Ohio Bureau of Workers' Compensation), North Dakota (Workforce Safety & Insurance), Washington (Department of Labor & Industries), Wyoming (Department of Workforce Services). The District of Columbia + Puerto Rico are also monopolistic.
Critical premium-strategy implications: In monopolistic states, carrier shopping is impossible. The state fund's published rates are the only rates available. Premium-reduction options are limited to: (1) Experience Modifier improvement via claims management; (2) safety + return-to-work programs (some states offer dividends/credits up to 25%); (3) accurate class code assignment (monopolistic states use proprietary class systems, NOT NCCI codes); (4) ensuring correct payroll segregation between operational + clerical employees. There is no competitive state fund option, no MGA option, no E&S option.
Federal-mandate WC (longshoremen, federal employees, DBA) operates under separate federal programs even in monopolistic states. Employers Liability (Part B of a standard WC policy in 46+ states) is NOT covered by monopolistic state funds — businesses operating in monopolistic states must purchase a Stop-Gap Employers Liability endorsement via a separate carrier (typically attached to the GL policy) to fill that protection gap.
Real-world scenario
Marcus is a hypothetical small-business owner; his scenario illustrates how monopolistic-state WC interacts with private-carrier Stop-Gap EL. It is not based on a specific real customer, claim, or quote from any carrier.
Marcus, electrical contractor — Columbus, OH (hypothetical). 18-person crew (12 journeyman electricians + 4 apprentices + 1 master electrician + 1 office admin), ~$3.4M annual revenue, residential + light-commercial wiring. Marcus operates exclusively in Ohio — a monopolistic state — so he MUST purchase Workers Comp from the Ohio Bureau of Workers' Compensation (BWC). He cannot shop Hartford, Travelers, or AMTrust no matter how clean his loss history is.
His 2025 WC premium math via Ohio BWC: Annual payroll = $1,650,000 (17 field employees averaging $92K base wages + benefits + overtime, with $52K office admin separated as clerical NCCI 8810). Ohio BWC's electrician manual class rate = $4.18 per $100 payroll. EMR (Ohio's equivalent to Experience Modifier) = 0.89 (10 years clean loss history, one $4,200 cumulative-trauma claim closed in 2022). Calculation: ($1,598,000 ÷ 100) × $4.18 × 0.89 = $59,433 base WC premium. Ohio BWC's Drug-Free Workplace credit (-7%) = -$4,160. Group-Rated Plan discount (-15%) via the local trade association = -$8,915. Final BWC premium: $46,358 ($3,863/month average), billed semi-annually.
Because Ohio BWC does NOT include Employers Liability coverage, Marcus also carries a Stop-Gap EL endorsement via his GL carrier (Cincinnati Insurance): $100,000 per accident / $500,000 disease policy / $100,000 disease per employee at $485 annual. Without Stop-Gap, third-party-over actions, dual-capacity claims, and intentional-act allegations from his employees would have NO defense or indemnity coverage — leaving Marcus personally exposed to potentially $500K+ liability per incident.
In May 2025 an apprentice suffers a $32,000 ladder-fall injury (8 weeks lost time + surgery). Ohio BWC pays statutory benefits directly to the apprentice + medical providers. Total claim cost to Marcus: $0 out-of-pocket (covered by BWC premium). 18 months later the apprentice's spouse files a third-party-over loss-of-consortium claim against Marcus personally for $250,000 alleging negligent supervision — Marcus's Stop-Gap EL responds, providing $48,000 in defense costs + a $35,000 settlement within the $100K-per-accident limit. Total covered exposure across both incidents: $115,000 — none out of Marcus's pocket. Without the Stop-Gap endorsement, Marcus would have funded the $48,000 defense + $35,000 settlement personally.
How it affects your premium
Workers Comp premium in monopolistic states is driven by very different factors than in private-carrier states:
- State-fund manual class rates — published by the state, NOT NCCI. Ohio BWC, ND WSI, WA L&I, and WY all maintain their own class-code systems. Rates are updated annually + reflect the state fund's overall loss experience. No carrier shopping = no rate competition.
- State-specific Experience Rating — Ohio uses EMR (Experience Modification Rate, similar to NCCI's mod factor). Washington uses Experience Factor + Retro programs. Wyoming uses base rate adjustments. North Dakota uses risk-rated dividend programs. All operate similarly but the math + minimum-premium calculations vary by state.
- State-specific safety + dividend programs — Ohio BWC offers Drug-Free Workplace (-7%), Group-Rated Plan (up to -15% via trade associations), Group Retrospective Rating (refund-based, -10% to -50% with low losses), Safety Council Performance Bonus, and other programs that can stack to 30-50%+ premium savings. Washington L&I has Retro Plans (similar refund mechanic, ~25-30% achievable). Wyoming has dividend declarations. North Dakota has performance-based premium adjustments.
- Stop-Gap EL endorsement — typically $50-$1,500/year added to GL or via specialty carrier. Critical separate purchase since monopolistic state funds DO NOT include EL (third-party-over, dual-capacity, intentional-act exposures). Without Stop-Gap, the business has NO defense or indemnity for these exposures.
- Out-of-state employees / temporary work — businesses based in monopolistic states with employees temporarily working in another state need 'other states' coverage. Ohio BWC won't cover an Ohio company's employee injured while working at a Pennsylvania job site > 7-30 days. This requires a private-carrier wrap policy.
- Payroll segregation — same as private-carrier states. Documented clerical (Ohio class 8810 equivalent) separation can save 30-70% on the segregated portion. Outside sales, drivers, and other standard exceptions vary by state — verify with state-fund guidance.
- Owner inclusion / exclusion — state-specific rules. Ohio BWC allows sole-prop / partner exclusion (saves $0.40-$30/$100 on owner's payroll). Washington L&I requires officers + owners to be included. Wyoming + ND vary. File the right exclusion form at policy inception.
Median small-business WC premium in monopolistic states runs 10-25% higher than comparable risks in competitive-private-carrier states — primarily because of the lack of competitive pressure on base rates per NAIC + III.
Common misconceptions
Myth: Monopolistic state coverage automatically includes Employers Liability — I'm fully protected.
Reality: It does not. Ohio BWC, ND WSI, WA L&I, and Wyoming all provide statutory WC benefits ONLY. Employers Liability (Part B in a standard WC policy in 46+ states) is NOT included. Third-party-over actions, dual-capacity claims, intentional-act allegations, and loss-of-consortium suits are NOT covered by the state fund. You MUST purchase a separate Stop-Gap EL endorsement (typically $50-$1,500/year attached to your GL policy) to fill that gap. Operating in a monopolistic state without Stop-Gap leaves you personally exposed to potentially $100K-$1M+ per incident.
Myth: I can shop other carriers to lower my WC premium in a monopolistic state.
Reality: You cannot. In Ohio, North Dakota, Washington, and Wyoming, the state fund is the SOLE source of WC. No private carrier writes WC in these states. Your only premium-reduction levers are: (1) Experience Rating improvement via claims management + return-to-work programs (can reduce premium 15-30% with sustained clean history); (2) State-specific dividend + group-rating programs (Ohio Group-Rated Plan, Washington Retro, ND Risk Plan — can stack to 30-50% savings); (3) Accurate class-code assignment + payroll segregation; (4) Safety-program credits (Drug-Free Workplace, Safety Council, etc.). Carrier shopping is not on the menu.
Myth: If my business is based outside a monopolistic state but I have employees working there temporarily, my regular WC policy covers them.
Reality: Usually not after a short window. Most private-carrier WC policies include "Other States Coverage" (Item 3.C of the policy) that lists where temporary work is covered. But monopolistic states are typically EXCLUDED from Other States schedules — meaning your Hartford or Travelers policy does NOT cover an employee injured at an Ohio job site beyond 7-30 days (state varies). The compliant solution: purchase a separate Ohio BWC policy (or ND/WA/WY equivalent) covering that exposure. Failure to do so creates personal liability + potential state penalties + uninsured-claim exposure.
Myth: Texas is a monopolistic state because it has unusual Workers Comp laws.
Reality: No — Texas is the OPPOSITE. Texas is the only fully opt-in WC state — employers can legally choose NOT to carry WC at all (becoming a "non-subscriber"), though they lose the tort-suit immunity protection in exchange. If a Texas employer DOES carry WC, they can shop multiple private carriers + the Texas Mutual state fund (competitive, not monopolistic). The 4 monopolistic states are: Ohio, North Dakota, Washington, Wyoming. DC + Puerto Rico are also monopolistic. Texas is the singular opt-in jurisdiction.
Frequently asked questions
What states are monopolistic for Workers Comp?
What is Stop-Gap Employers Liability and why do I need it?
Can a monopolistic-state employer cover its temporary work in other states with the state fund?
How does Ohio BWC's Group-Rated Plan work?
Are class codes in monopolistic states the same as NCCI codes?
Sources cited
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