Workers' Comp in Ohio, North Dakota, Washington, and Wyoming: Why You Can't Shop for Private Coverage

If one of your employees gets hurt on the job in Ohio, North Dakota, Washington, or Wyoming, your private workers' compensation policy is worthless paper — it cannot legally pay the claim. These four states force you to buy coverage from a state-run fund, and the policy that fund sells you quietly omits the employer's liability protection that every standard policy includes everywhere else. Here is how each state bills you, the lawsuit-shaped hole in the state coverage, and the endorsement that closes it.

What "Monopolistic" Actually Means for Your Business​

Most states run a competitive market: you can buy workers' compensation from any licensed private carrier, and in states with a competitive state fund you can also buy from the state. You get quotes, compare, and pick the fit.

Monopolistic states work the opposite way. In Ohio, North Dakota, Washington, and Wyoming, private insurers are not allowed to write workers' compensation coverage at all. If you have employees working in one of these states, you must buy coverage directly from the state fund:

• Ohio — Ohio Bureau of Workers' Compensation (BWC)
• North Dakota — Workforce Safety & Insurance (WSI)
• Washington — Department of Labor & Industries (L&I)
• Wyoming — Department of Workforce Services

This applies whether your business is headquartered there or you simply have people working there — including a single remote employee. There is no shopping around on price, no bundling discount with your other policies, and no private-carrier alternative. Very large employers may be able to qualify for self-insurance in some of these states, but for a typical small business the state fund is the only door in.

Note the asymmetry: if you are based in a monopolistic state but have workers elsewhere, the state fund does not cover those out-of-state workers either. You need separate coverage for every other state where you have employees.

How Each State Fund Bills You​

The four funds all sell the same product — statutory workers' compensation benefits — but they bill, classify, and report differently. Getting the cadence wrong is one of the most common ways small employers rack up penalties.

Ohio: Prospective Billing With an Annual True-Up​

Ohio runs on a policy year of July 1 through June 30 for private employers. To get covered, you apply to the BWC (the U-3 application) and pay a minimum, non-refundable application fee.

Ohio bills prospectively: before the policy year starts, the BWC estimates your premium from your expected payroll and you pay it in installments. After the policy year ends, you reconcile reality against the estimate in a process Ohio calls the true-up — you report your actual payroll for the year ended June 30, and the BWC bills you for the difference or credits the overpayment. Private employers must complete the true-up by August 15.

Ohio uses National Council on Compensation Insurance (NCCI) classification codes, and your premium reflects your industry risk plus your own claims history through an experience modifier. Miss the true-up and the BWC will not just wait politely — it can calculate your premium from your estimated payroll plus an additional assessment, which is an expensive way to learn the deadline.

Washington: Quarterly Reports Priced by the Hour​

Washington is the outlier of the four. Instead of pricing premiums purely on payroll dollars, the Department of Labor & Industries prices most risk classes per hour worked. Each quarter you file a report showing worker hours (and payroll) broken out by risk classification, and the premium follows the hours.

Three things surprise newcomers:

1. Washington built its own risk classification system tailored to the state's industries — NCCI codes do not apply.
2. You get an annual rate notice listing your assigned risk classes, your experience modification factor, and the base rate per hour for each class. New employers start without claims history and earn their modifier over time.
3. Your employees help pay. Washington is unusual in requiring workers to contribute a share of the workers' compensation premium through a payroll deduction. Your payroll system needs to withhold the worker share and remit the full premium to L&I — one more line item to set up correctly from the first paycheck.

Premiums for a calendar quarter are due by the last day of the month following the quarter. Track hours by risk class every pay period, not at quarter-end when memories have faded.

North Dakota: State Fund With Its Own Playbook​

North Dakota coverage comes from Workforce Safety & Insurance (WSI), and you apply directly to WSI to open an account. Like Washington, North Dakota runs its own classification system rather than NCCI's — WSI publishes its own classification manual, and your premium depends on getting every employee into the right class.

WSI bills on payroll, applies experience rating as your claims history develops, and offers premium discount programs for employers with strong safety records. Because the classification system is state-specific, a class code that served you well in another state may not exist or may mean something different in North Dakota. Verify every code against the WSI manual when you set up, and re-verify when you add new job roles.

Wyoming: NAICS-Based Classes Through Workforce Services​

Wyoming coverage runs through the state insurance fund administered by the Department of Workforce Services. Wyoming keys its workers' compensation class codes to the North American Industry Classification System (NAICS), so your industry code pulls double duty.

Wyoming employers report payroll and remit premiums on the state's schedule, with rates set by classification and adjusted for experience. As with the other three funds, the private workers' compensation policy you carry for the rest of your workforce cannot satisfy Wyoming's requirement — Wyoming payroll needs Wyoming fund coverage, period.

The Employer's Liability Gap: What the State Fund Doesn't Cover​

Here is the part that catches even careful owners off guard. A standard workers' compensation policy has two parts: Part One pays the statutory benefits to injured workers, and Part Two — employer's liability insurance — defends you when someone sues you as the employer over a workplace injury.

The four monopolistic state funds sell Part One only. Employer's liability coverage is not included, which leaves you exposed to suits such as:

• A third-party-over action, where an injured worker sues a third party (say, an equipment manufacturer), and that third party drags you into the suit seeking contribution.
• A spouse or family member suing for loss of consortium or consequential injury.
• Dual-capacity claims, where you are sued not as the employer but in another role, such as the manufacturer of the product that caused the injury.
• Claims for injury or occupational disease that fall outside what the state workers' compensation law covers.

Worse, your general liability policy will not rescue you. Every standard commercial general liability (CGL) policy carries an employer's liability exclusion, written on the assumption that Part Two lives on your workers' compensation policy. In these four states that assumption is wrong — and the exclusion still applies. That is the gap.

Stop-Gap Coverage: How to Close It​

The fix is a product literally named for the problem: stop-gap coverage (sometimes written "stop gap"). It provides the employer's liability protection the state fund omits, and it is typically sold as an endorsement added to your general liability policy. Some carriers also offer it as a standalone employer's liability policy, which can make sense if you operate only in monopolistic states.

What to get right when you buy it:

• Match your footprint. You need stop-gap protection in every monopolistic state where you have employees. Tell your agent exactly which of the four states you operate in.
• Mind the limits. Employer's liability limits are commonly expressed as three numbers (per accident, per employee for disease, and a disease policy limit). Monopolistic-state employers should buy limits comparable to what they would carry on Part Two elsewhere — skimping here defeats the purpose.
• Coordinate with your umbrella. If you carry a commercial umbrella or excess policy, confirm it sits over the stop-gap endorsement. An umbrella that assumes underlying employer's liability exists, when yours is an endorsement with different terms, can create a coverage dispute at the worst moment.
• Revisit it as you grow. Adding your first remote hire in Washington or opening a small Ohio satellite office changes your stop-gap needs. Make "new state, new review" a habit.

Stop-gap endorsements are generally inexpensive relative to the lawsuit they defend — often a modest addition to your general liability premium. The expensive version is learning you needed it from a summons.

The Out-of-State Trap: Remote Workers and Traveling Crews​

The fastest-growing way employers stumble into monopolistic-state rules is the remote hire. You are headquartered in Texas with a standard private workers' compensation policy, and you hire a developer who works from home in Columbus. Your Texas policy cannot pay Ohio benefits — the carrier is not licensed to write workers' compensation in Ohio and cannot satisfy Ohio law. You need an Ohio BWC account covering that employee.

The same logic applies to traveling crews, temporary assignments, and multi-state projects. Key points:

• Your home state's extraterritorial provisions do not save you. Those provisions extend your existing policy to temporary out-of-state work — but they cannot create coverage a monopolistic state forbids your carrier to write. If an employee is injured while working in a monopolistic state, the claim belongs under that state's fund.
• Get the state account before the work starts. Opening a fund account takes processing time. Build it into your hiring checklist for any new state, the same way you register for withholding tax.
• Keep a certificate of coverage on file. You will need proof of state-fund coverage for client contracts, project bids, and your own records. Each fund issues its own documentation — learn where yours lives.
• Audit your headcount by state quarterly. Remote work makes your state footprint drift silently. A quarterly review of where everyone actually works catches a move to Spokane or Fargo before an injury turns it into an uninsured claim.

Mistakes That Cost Real Money​

Across all four states, the same errors show up again and again:

1. Assuming your private policy travels. It does not. Payroll in a monopolistic state needs that state's fund, full stop.
2. Skipping stop-gap coverage. The state fund plus a standard CGL policy still leaves the employer's liability exclusion unpatched. Every monopolistic-state employer needs the endorsement.
3. Misclassifying payroll. Wrong class codes mean wrong premiums — and when the fund reclassifies you on audit, the back bill comes with interest and penalties. Ohio follows NCCI, Washington uses its own risk classes, North Dakota uses the WSI manual, and Wyoming keys off NAICS. There is no universal code.
4. Missing the reporting rhythm. Ohio's August 15 true-up, Washington's quarterly hour reports, Wyoming and North Dakota payroll filings — each fund has its own calendar, and estimated assessments for non-reporting are never in your favor.
5. Forgetting subcontractors. If your subcontractor has no coverage of its own, their workers can become your premium problem. Collect certificates of state-fund coverage from every sub before they start work, and verify them.
6. Ignoring owner and officer coverage rules. Each state has its own defaults and elections for covering owners, partners, LLC members, and corporate officers. The default is not the same in all four states — check before you assume you are covered or exempt.

Keep Your Payroll Records Audit-Ready​

Every fund on this list can audit your payroll, and the audit goes smoothly only if your books already answer the auditor's questions. The winning setup is boring: separate your payroll by state and by classification from day one, rather than reconstructing it under deadline.

Practical habits that pay off:

• Track payroll by state and class code. Every pay run should be splittable into Ohio-manufacturing, Washington-office, and every other combination you report. In Washington, track hours by risk class too — hours are the premium base.
• Reconcile fund payments to the general ledger monthly. State-fund premiums, installment payments, true-up balances, and stop-gap endorsement premiums should each hit distinct accounts so the Washington worker-share withholding, for example, never mingles with the employer share.
• Keep certificates and rate notices with the books. Store each year's rate notices, true-up confirmations, quarterly filings, and subcontractor certificates alongside the payroll records they support. An auditor asking for 2025 Washington hours should get an answer in minutes.
• Calendar every fund deadline separately. Four funds, four calendars, four sets of penalties. One shared "insurance" reminder is how an August 15 true-up gets missed.

If you run your books in plain text, this kind of multi-dimensional tracking is exactly what structured accounts are for — state and class dimensions live in the account hierarchy, and every premium payment stays traceable to the filing it satisfies. The Beancount documentation shows how to structure accounts and queries so a report like "all 2026 Ohio BWC premiums by class" is one command, not one weekend.

Simplify Your Financial Management​

Operating in a monopolistic workers' compensation state means more filings, more deadlines, and more ways for sloppy payroll records to turn into penalties. Beancount.io provides plain-text accounting that gives you complete transparency and control over your financial data — no black boxes, no vendor lock-in. Get started for free and keep every premium, payroll split, and filing receipt organized from day one.