When one claim blows past your other limits.
A single bad day — a serious multi-vehicle accident, a severe injury lawsuit — can run past a one-million-dollar limit and keep going, straight into the assets of the business. A commercial umbrella is the layer that catches it: it stacks additional limits on top of your general liability, commercial auto, and employers' liability all at once, and it's surprisingly affordable for what it does. Here's how it works, why the schedule of underlying matters, and how it differs from plain excess coverage. Placed through an independent agency that represents Auto-Owners.
The short answer
A commercial umbrella adds excess liability limits above your primary policies — and it sits over general liability, commercial auto, and employers' liability all at once. When a big claim exhausts an underlying limit, the umbrella pays the rest, up to millions in additional coverage. It requires you to maintain the underlying limits in its schedule, it generally follows the form of the policies beneath it, and a true umbrella can drop down for certain gaps. For what it protects, it's relatively inexpensive. Backed by an A+ (Superior) carrier and placed only through an independent agent like Cribb.
One layer above your whole liability program.
An umbrella's value is that it extends several policies at once — not just one.
General liability
Adds limit above your general liability for a large third-party injury, property-damage, or advertising-injury claim that exceeds the primary per-occurrence or aggregate limit.
Commercial auto
Adds limit above your commercial auto liability — the exposure most likely to produce a catastrophic claim, since a serious multi-vehicle accident can blow past a primary limit fast.
Employers' liability
Adds limit above the employers' liability section of your workers' comp — the part that responds to employee-injury suits that fall outside the workers' comp system.
Millions in extra limit
Umbrella limits typically run from one million to twenty-five million dollars or more, built in one-million-dollar layers — and each added layer usually costs less than the one below it.
Drop-down for gaps
Beyond adding limit, a true umbrella can drop down to cover certain claims the underlying denies or excludes — subject to a self-insured retention you pay first — acting almost like primary coverage there.
Protection for the business
Above all, it keeps a shock loss from reaching past your insurance into the assets you've built — the reason any business with something to lose carries one.
A single claim can outrun a million-dollar limit.
A severe injury lawsuit or a bad multi-vehicle accident can settle well beyond a primary one-million-dollar limit. Without an umbrella, the business pays the difference — out of its assets.
The gap between your limit and a big verdict is yours.
Primary liability limits are built for ordinary claims, not catastrophes. A workplace injury, a customer's severe harm, or a highway accident involving a company truck can produce a judgment of several million dollars — and everything above your general liability or commercial auto limit lands on the business. For a company with vehicles, employees, and public interaction, that's not a remote scenario.
The umbrella exists precisely for that gap. Because it pays only after the underlying limits are used up, it's leveraged — a relatively modest premium buys a large amount of protection where you're least able to absorb the loss yourself. It's the coverage business owners are gladdest to have on the worst day, and never think about otherwise.
The schedule of underlying is the whole game.
An umbrella lists the primary policies it covers and the minimum limits you must keep on each. Let one slip below the requirement and you fund that gap yourself before the umbrella responds.
Only as broad as the coverage beneath it.
You can't buy an umbrella on its own — it requires active underlying policies, listed in a schedule of underlying insurance, each maintained at a minimum limit (commonly a million dollars per occurrence on general liability, matching limits on auto, and set employers' liability limits). If you drop below those, you become responsible for the difference before the umbrella pays.
Just as important, an umbrella generally follows the form of the policies beneath it — so it's only as broad as your weakest underlying policy. If your general liability excludes something, the umbrella usually excludes it too, unless it drops down. That's why the underlying coverage and endorsements have to stay aligned with the umbrella: the layers only work as one coordinated tower, and keeping that tower straight is exactly what an independent agent does.
Three things to get right on a commercial umbrella.
First, maintain the underlying limits the schedule requires — a lapsed or reduced primary limit turns into a gap you self-fund. Second, schedule every policy it needs to sit over, remembering that a BOP includes general liability but not commercial auto, so the auto policy has to be scheduled too. Third, size the limit to your assets and contracts, not a round number — the goal is enough to survive your worst realistic day.
What a commercial umbrella won't do.
It extends limits — but it isn't a catch-all, and a few exposures need their own coverage.
Broaden your scope
An umbrella extends limits, not scope. If a claim type is excluded on the underlying policy, it's generally excluded above too. The fix is fixing the underlying, not relying on the umbrella.
Professional, cyber & management liability
Professional liability (E&O), cyber, and directors-and-officers coverage usually aren't scheduled under a standard umbrella. Those catastrophic layers are handled by their own policies or dedicated excess.
Your property & comp benefits
An umbrella is liability-only. It doesn't extend your commercial property limits or the statutory benefits of workers' comp, and standard exclusions like pollution apply.
Backed by an A+ (Superior) carrier.
AM Best rates the members of Auto-Owners Insurance Group — the companies behind your Arkansas commercial umbrella — with a Financial Strength Rating of A+ (Superior) and a Long-Term Issuer Credit Rating of "aa" (Superior), stable outlook, per its rating action dated October 31, 2024. A+ (Superior) is the second-highest of AM Best's rating levels and sits in its top "Superior" category. For excess coverage that may only be called on in a catastrophe, the insurer's long-term strength matters. A financial strength rating is an opinion about an insurer's ability to pay claims — not a grade of how a specific claim is handled, and not a recommendation. The current rating is at ambest.com.
Where we earn it on a commercial umbrella.
The quiet umbrella mistakes are underlying limits that fell below the schedule, a policy left off the schedule — most often commercial auto under a BOP-only program — an underlying gap the follow-form umbrella won't fill, and a limit sized to a round number instead of the real exposure. We build the schedule correctly, keep the underlying coverage and endorsements aligned, size the limit to your assets and contracts, and align named insureds across the whole tower. We don't adjust your claim and can't overrule an adjuster — but we make the layers work together, and we quote Auto-Owners against our other commercial markets.
A lot of protection for the money.
Because an umbrella pays only after the underlying limits are used up, it's leveraged — a modest premium buys a large amount of protection. General industry figures put the first million of coverage for many lower-risk small businesses in roughly the few-hundred-to-under-a-thousand-dollars-a-year range, with each added million typically costing less than the first. That's a general industry range, not a quote, not an Auto-Owners rate, and not your number — higher-risk operations, vehicles, and larger limits move it up. Your premium depends on your underlying coverage, risk, and the limit you choose. Send us your liability policies and we'll build the real figure with you, Auto-Owners against our other commercial markets.
The policies an umbrella sits over.
Auto-Owners commercial umbrella questions.
What is commercial umbrella insurance and how does it work?
A commercial umbrella is an extra layer of liability coverage that sits above your primary liability policies and responds when one of their limits is exhausted by a large claim. Say your general liability has a one-million-dollar per-occurrence limit and a lawsuit settles for one and a half million: the general liability pays the first million and the umbrella pays the remaining five hundred thousand.
What makes an umbrella powerful is that it sits over several underlying policies at once — typically general liability, commercial auto, and employers' liability — so a single umbrella extends the limits on all of them rather than just one. It's the coverage that keeps one catastrophic claim from reaching past your insurance and into the assets of the business.
What does a commercial umbrella sit over?
A standard commercial umbrella sits above three primary liability lines: general liability, which covers third-party bodily injury and property damage; commercial auto liability, which covers accidents involving business vehicles; and employers' liability, the liability section of your workers' compensation policy that covers employee-injury suits outside the workers' comp system. These policies are named in a schedule of underlying insurance attached to the umbrella.
Some carriers allow additional underlying schedules, such as liquor liability or garage liability, depending on the business. One practical note: because a Business Owners Policy includes general liability but not commercial auto, a well-built umbrella schedules both the BOP and the separate commercial auto policy so the excess limit sits over your whole liability program.
What's the difference between an umbrella and excess liability?
Both respond after your primary coverage is exhausted, but they differ in breadth. An excess liability policy is a pure limit extender — it strictly follows the form of one underlying policy, adds more limit, and covers nothing the underlying doesn't. A true umbrella is broader: it can sit over multiple underlying policies at once, and it can 'drop down' to cover certain claims the underlying denies or excludes, subject to a self-insured retention you pay first, functioning almost like primary coverage for those gaps.
For most small and mid-sized businesses, an umbrella is the right tool because it extends several lines and offers that drop-down flexibility. Large accounts sometimes stack excess layers above an umbrella to reach very high limits. We'll structure whichever fits your risk.
Do I have to keep my underlying limits to have an umbrella?
Yes, and it's one of the most important conditions to understand. An umbrella requires you to maintain specified minimum limits on the underlying policies listed in its schedule — commonly one million dollars per occurrence on general liability, matching limits on commercial auto, and set limits on employers' liability. If you let an underlying limit drop below what the schedule requires, you effectively become responsible for that difference before the umbrella responds.
There's a second catch: an umbrella generally follows the form of the policies beneath it, so it's only as broad as your weakest underlying policy. If your general liability excludes something, the umbrella usually excludes it too. That's why we keep your underlying coverage and endorsements aligned with the umbrella — the layers only work as a coordinated tower.
How much commercial umbrella coverage do I need?
The right amount is driven by what you have to protect and what your contracts require, not a round number. Businesses with significant assets, vehicles on the road, employees, or heavy public interaction face the possibility of a claim well beyond a primary one-million-dollar limit, and an umbrella can add anywhere from one million to twenty-five million dollars or more, usually in one-million-dollar layers.
Many leases and contracts also specify a minimum umbrella limit you must carry to do the work. A good way to think about it is your worst realistic day — a serious multi-vehicle accident or a severe injury lawsuit — and whether your primary limits would cover it. We help you size the limit to your actual exposure and any contractual requirements.
How do I get an Auto-Owners commercial umbrella quote in Northwest Arkansas?
Start at our commercial quote form or call (479) 286-1066. Because an umbrella sits over your other policies, it helps for us to see your general liability, commercial auto, and workers' compensation so we can build the schedule of underlying correctly and confirm the required limits are in place.
We'll recommend an umbrella limit sized to your assets and any contract requirements, make sure your underlying coverage and endorsements align so there are no gaps at the excess layer, and quote Auto-Owners against our other commercial markets. Because Auto-Owners only sells through independent agents, an agency like ours is the only way to buy it — and coordinating the whole tower is exactly what an independent agent is for.
If our coverage explainers are useful, mark Cribb Insurance as a preferred source so more Northwest Arkansas business owners can find our local, plain-English guides.
Put a ceiling over your worst day.
Send us your general liability, commercial auto, and workers' comp, and we'll build the schedule of underlying, size an umbrella limit to your assets and contracts, and make sure the whole tower lines up with no gaps at the top. If Auto-Owners is the right fit, we'll place it. If another of our commercial markets fits better, we'll tell you that too.
Cribb Insurance Group Inc. is an independent insurance agency licensed in Arkansas. We are not Auto-Owners, and this page is not endorsed, sponsored, reviewed, or approved by Auto-Owners. "Auto-Owners" and "Auto-Owners Insurance" are service marks or trademarks of Auto-Owners Insurance Company and its affiliates, used here nominatively to identify products we are appointed to place. Auto-Owners' Arkansas commercial umbrella and excess liability policies are issued by Auto-Owners-affiliated underwriting companies.
This page describes commercial umbrella and excess liability insurance in general, industry-standard terms for informational purposes only. It is not a policy, not an offer of insurance, and not a guarantee of coverage, availability, eligibility, or price. How an umbrella or excess policy responds — including which underlying policies it sits over, the schedule of underlying insurance and required underlying limits, follow-form terms, drop-down coverage and any self-insured retention, limits, and exclusions (such as professional services, pollution, and owned property) — is set by the carrier, varies by policy and over time, is subject to the carrier's underwriting approval and eligibility, and applies only as written in the policy actually issued to you. An umbrella generally extends limits rather than broadening scope and is generally only as broad as its underlying coverage; maintaining required underlying limits is a condition of coverage. Limit figures such as one million or twenty-five million dollars are general, industry-standard examples of limit structures, not a recommendation of adequate limits and not a quote.
The cost figure shown is a general industry planning range drawn from public sources, expressed per one million dollars of coverage for lower-risk businesses; it is not a quote, not an Auto-Owners rate, and not indicative of your premium, which depends on your underlying coverage, risk, limits, and the policy issued. Financial strength ratings are opinions of an insurer's ability to meet its ongoing insurance obligations, are subject to change, are not recommendations to purchase, hold or terminate any policy, and do not address an insurer's claims-handling practices; current ratings are at ambest.com. The A+ (Superior) rating referenced applies to the members of Auto-Owners Insurance Group.
Last reviewed July 2026.