What Is Stop-Gap Coverage? A Plain-English Guide for Employers

If you’ve ever read through a commercial insurance policy and hit the phrase “stop-gap coverage” — and felt your eyes glaze over — you’re not alone. It’s one of those terms that sounds technical and vague at the same time.

But if your business operates in certain states, stop-gap coverage isn’t optional reading. It’s a critical layer of protection that most standard workers’ compensation policies simply don’t include.

Here’s everything you need to know, explained without the insurance jargon.

What Is Stop-Gap Coverage?

Stop-gap coverage — also called stop-gap employers liability insurance — is a specialized endorsement that protects employers against lawsuits filed by employees who are injured on the job.

More specifically, it closes a protection gap that exists in states where workers’ compensation is managed by a state-run monopoly fund rather than a private insurer.

Here’s why that matters: a standard workers’ compensation policy actually includes two parts:

• Part One covers the required workers’ comp benefits — medical bills, lost wages, and rehabilitation costs for injured employees.
• Part Two (employers liability coverage) protects the employer if an injured employee sues them directly, arguing the employer’s negligence caused or worsened the injury.

When you buy workers’ comp through a private insurance carrier, you typically get both parts automatically. But in monopolistic states, the state fund only provides Part One. Part Two — the employers liability protection — is left out entirely.

Stop-gap coverage fills that gap.

Which States Require Stop-Gap Coverage?

Stop-gap coverage applies in what are called monopolistic states — states where employers are legally required to buy workers’ compensation exclusively through a state-run fund rather than a private carrier.

As of 2026, these states are:

Note: West Virginia previously operated as a monopolistic state but transitioned to a competitive market. If your business has operations across multiple states, it’s worth verifying current requirements with your broker.

Because private carriers cannot write workers’ compensation in these states, the standard commercial workers’ comp policy — which would normally include employers liability as Part Two — simply cannot be issued. Stop-gap coverage is the mechanism that restores that missing protection.

What Does Stop-Gap Coverage Actually Protect Against?

Without stop-gap coverage, an employer in a monopolistic state is exposed to direct lawsuits from injured employees. These lawsuits can allege:

• Negligence — the employer failed to maintain a safe work environment
• Third-party-over actions — an employee is injured by a third-party piece of equipment, sues the manufacturer, and the manufacturer then sues the employer
• Loss of consortium — a spouse sues the employer because the employee’s injuries affected their marriage or family life
• Consequential bodily injury — a family member contracts an illness or injury as a result of the employee’s work-related condition (common in chemical exposure cases)

Without employers liability coverage in place, any of these scenarios could expose your business to an uncapped lawsuit with no insurance backstop.

Stop-gap coverage steps in as the insurer in these situations — covering your legal defense costs and any damages awarded, up to your policy limit.

How Is Stop-Gap Coverage Different from Workers’ Compensation?

This is the most common point of confusion, so it’s worth being explicit.

Workers’ compensation pays benefits directly to the injured employee. It’s a no-fault system — the employee doesn’t have to prove you did anything wrong to receive benefits. It covers medical treatment, a portion of lost wages, and rehabilitation.

Stop-gap / employers liability coverage protects the employer. It only comes into play if the employee (or their family) takes legal action against the business. It requires proof of negligence or wrongdoing on the employer’s part.

Think of it this way: workers’ comp is for the employee, stop-gap is for you.

How Is Stop-Gap Coverage Added to a Policy?

Stop-gap coverage is typically added as an endorsement to your commercial general liability (CGL) policy or your commercial package policy. It is not a standalone policy.

When your business operates in a monopolistic state, your broker should proactively add this endorsement. If you’re unsure whether your current policy includes it, look for language like:

• “Stop Gap Employers Liability Coverage Endorsement”
• “Employers Liability — Monopolistic State”
• “Stop-Gap Liability Endorsement”

If you don’t see any of those terms and your business has employees in North Dakota, Ohio, Washington, or Wyoming — that’s a conversation worth having with your insurer immediately.

What Does Stop-Gap Coverage Cost?

Stop-gap coverage is relatively modest in cost compared to the exposure it protects against. Pricing depends on:

• Payroll size in the monopolistic state(s)
• Industry classification and associated risk level
• Claim history of the business
• Coverage limits selected

For most small to mid-sized employers, stop-gap is an affordable endorsement — often a few hundred dollars per year — especially when weighed against the potential cost of an uninsured employers liability claim.

Who Needs Stop-Gap Coverage?

You need to seriously evaluate stop-gap coverage if any of the following apply to your business:

You have employees physically working in a monopolistic state. Even if your headquarters is elsewhere, any employees who perform work in North Dakota, Ohio, Washington, or Wyoming create an exposure.

You’re in the auto retail or commercial transportation industry. Dealers, fleet operators, and transportation companies often operate across state lines. If drivers or technicians work in or through monopolistic states, you have stop-gap exposure.

You self-insure workers’ compensation in a monopolistic state. Large employers who qualify for self-insurance through the state fund still lack employers liability protection. Stop-gap remains necessary.

You operate in a state-funded workers’ comp program as a matter of state law. Some employers mistakenly assume the state fund handles everything. It doesn’t.

A Real-World Example

Imagine a dealership group with locations in Ohio. An employee is seriously injured in the service bay. The state workers’ comp fund pays the employee’s medical bills and a portion of their wages — that’s handled.

But then the employee’s attorney argues that the injury was preventable and that the dealership was negligent in maintaining safe working conditions. They file a lawsuit seeking damages for pain and suffering, emotional distress, and lost future earning potential.

Without stop-gap coverage, the dealership is defending that lawsuit entirely out of pocket. Legal fees alone could run into six figures before a verdict is reached.

With stop-gap coverage in place, the endorsement responds — covering defense costs and any settlement or judgment up to the policy limit.

That’s the gap. That’s what stop-gap closes.

Common Questions About Stop-Gap Coverage

Does stop-gap coverage apply if I only have occasional workers in a monopolistic state?

Yes. Even temporary workers, traveling employees, or project-based staff who perform work in a monopolistic state create an exposure. The trigger is physical work in the state, not permanent operations.

Is stop-gap the same as general liability?

No. General liability covers third-party bodily injury and property damage — it does not cover employees. Stop-gap specifically covers the employer’s liability to employees in monopolistic states.

What limits should I carry?

Standard limits are often $100,000 per occurrence / $100,000 per disease per employee / $500,000 policy aggregate, but many businesses opt for higher limits depending on payroll size and industry risk. Your broker can model the right limits based on your exposure.

What if I have operations in both monopolistic and competitive states?

Your standard workers’ compensation policy (issued by a private carrier) covers employers liability in the competitive states. You’ll need the stop-gap endorsement specifically for the monopolistic states. A good broker will ensure both are addressed in your policy structure.

The Bottom Line

Stop-gap coverage exists because the standard workers’ compensation system has a structural hole in certain states — and most employers don’t find out about it until they need it.

If your business has any employee exposure in North Dakota, Ohio, Washington, or Wyoming, stop-gap employers liability coverage isn’t something to think about later. It’s a foundational piece of your commercial insurance program.

At CARS (Commercial Auto Retail Services), we specialize in insurance solutions built around the unique needs of auto dealers, fleet operators, and commercial transportation businesses — including employers operating across state lines in both monopolistic and competitive markets.

Have questions about your coverage structure? Contact the CARS team to review your current policy and make sure your stop-gap exposure is covered.