Commercial Umbrella Insurance: Coverage, Underlying Limits and Exclusions

The California Department of Insurance (CDI) says commercial automobile, CGL, workers' compensation "or any liability policy" can be covered by a commercial umbrella. CDI small business guide to commercial insurance. Check how a proposal relates to each of these policies:

• General liability. The umbrella adds limits above your CGL policy for covered bodily injury and property damage claims. The specimen form this page quotes, the ISO Commercial Liability Umbrella Coverage Form CU 00 01 12 07 as posted by Berkshire Hathaway GUARD, also has a separate personal and advertising injury coverage. GUARD's posted specimen umbrella form. Our general liability guide explains the primary policy.
• Commercial auto liability. In that specimen form, a "covered auto" means only an auto to which your underlying insurance applies. The umbrella's auto protection therefore tracks the vehicles your commercial auto policy insures.
• Employers liability. A workers' compensation policy has two parts. CDI explains that Part Two, employers liability, protects the employer when an employee can sue under common law, such as a third-party-over action. The umbrella can add limits above that part. Statutory workers' compensation benefits are a separate obligation, which the specimen form excludes.

Commercial property is outside this structure. The Hartford's explainer says a commercial umbrella does not extend the limits of commercial property insurance; in its fire example, the business pays the cost above its property limit. The Hartford's commercial umbrella overview.

Claims no underlying policy covers

An umbrella can also pay some claims that fall outside every primary policy. CDI says a commercial umbrella "may also provide coverage if a basic liability policy is not in force" and can fill gaps in basic liability coverage. When it does, it does not pay from the first dollar. CDI says it is common to have a self-insured retention (SIR) of at least $10,000. An SIR is similar to a deductible: you pay that amount before the umbrella responds. CDI commercial umbrella section.

The specimen form (CU 00 01 12 07) applies its self-insured retention only to occurrences the underlying insurance does not cover. The SIR does not apply when the underlying policy would have paid but its limits were used up. Specimen umbrella form, Section V, definition 20. That form is an example; your proposal may use a later edition or the insurer's own wording.

In the specimen form, the insurer pays the "ultimate net loss" above the "retained limit." The retained limit is either the available limits of the underlying insurance scheduled in the declarations or the self-insured retention, whichever applies. The insurer takes on a duty to defend when the underlying insurance provides no coverage or its limits are exhausted. Specimen umbrella form, Sections I and V.

Hypothetical illustration: A business carries a general liability policy with a $1 million each-occurrence limit and an umbrella with a $2 million each-occurrence limit. A covered $2.5 million judgment would exhaust the general liability limit first. The umbrella would pay the next $1.5 million, and any amount above both limits would stay with the business. Real outcomes depend on the wording, remaining aggregates and defense terms.

The word "available" matters. The specimen form's underlying insurance condition allows underlying aggregate limits to be reduced by paid claims. Ask how claims earlier in the policy year would change the point at which your umbrella begins to pay. Specimen umbrella form, Condition 13.

Limits on the umbrella itself

An umbrella has its own limits. In the specimen form, an aggregate limit caps most losses during the policy period, while an each-occurrence limit caps a single event. Bodily injury and property damage from a covered auto fall outside that aggregate and are capped by the each-occurrence limit. Specimen umbrella form, Section III. Read the limits section of your own form for these details rather than relying on a headline figure.

The two labels overlap but are not the same. TDI says excess liability insurance "pays for covered losses that exceed your CGL policy's dollar limit," while an umbrella sits above both auto and CGL limits and can also cover exposures the primary CGL policy leaves out. TDI excess and umbrella definitions. The Hartford's explainer describes excess coverage as extending "the limits on one specific liability policy" and an umbrella as extending the limits of different policies. The Hartford's comparison.

A label alone does not settle what a policy covers, so compare the forms rather than the names. Ask which policies each proposal schedules, whether it has its own insuring agreement and exclusions, and whether a self-insured retention applies.

An umbrella is written on top of specific policies. In the specimen form, "underlying insurance" means the policies listed in the declarations under the schedule of underlying insurance. The policies and limits on that schedule are part of each insurer's offer, so ask for the schedule in writing with every proposal. The Hartford's explainer says that if you don't have a general liability policy, "you can't get commercial umbrella coverage." The Hartford's umbrella requirements.

Keeping the scheduled policies in force is your responsibility. The specimen form's maintenance condition says the scheduled underlying insurance "shall remain in full effect throughout the policy period," except for aggregate reductions from paid claims. Failure to maintain it does not cancel the umbrella, but the umbrella "will apply as if the 'underlying insurance' were in full effect." Specimen umbrella form, Condition 13.

In plain terms, if your auto policy lapses or you lower its limit below the scheduled amount, the umbrella still starts where the scheduled limit would have ended. You would carry the gap. The same condition requires you to notify the umbrella insurer when an underlying policy ends or its limits or scope change.

The umbrella and the underlying policies can come from different insurers; The Hartford, for example, says its umbrella can extend liability coverage you carry with other insurers. When the insurers differ, line up renewal dates and named insureds. Our umbrella proposal checklist provides a row-by-row worksheet for matching each underlying policy to the umbrella schedule.

Exclusions vary by form, so treat this list as one example. The specimen ISO umbrella form posted by GUARD excludes, among others:

• Expected or intended injury, and liability assumed by contract except under an "insured contract."
• Liquor liability, for businesses that make, distribute, sell or serve alcohol.
• Obligations under workers' compensation, disability benefits, unemployment compensation and similar laws, and ERISA obligations.
• Auto injury or damage from an auto that is not a "covered auto," plus auto physical damage, no-fault, personal injury protection, medical payments and uninsured or underinsured motorist coverage.
• Bodily injury to your employees (employer's liability), unless valid underlying employers liability insurance applies.
• Employment-related practices, such as termination, discrimination or harassment.
• Pollution, including pollution cleanup costs, unless valid underlying insurance for the risk applies.
• Aircraft or watercraft, racing activities and war.
• Damage to your own product or work, impaired property and product recalls.
• Professional services, including legal, accounting, engineering, medical and similar services.
• Electronic data and distribution of material in violation of statutes.

Several exclusions give back coverage only when the underlying policy covers the risk. In this form, the employer's liability, liquor liability and pollution exclusions do not apply where valid underlying insurance for those risks exists. Coverage then follows the provisions, exclusions and limitations of the underlying policy. Under this form, an umbrella over a policy that excludes liquor or pollution liability will not add that coverage.

Professional mistakes deserve a separate check. Under a form with this professional services exclusion, limits for professional errors come from your E&O policy, so compare its limits separately; see our professional liability guide. Ask any insurer whose umbrella you are considering to point to its own exclusions page by page.

Customer and government contracts can ask for liability limits above what a single primary policy carries. Two public examples show how such requirements are written:

• Combined limits. The Superior Court of California, County of Santa Barbara, lets a contractor "satisfy basic coverage limits through any combination of primary, excess or umbrella insurance." The same requirements say the umbrella, if used, must be endorsed to name the court as an additional insured, and that the contractor bears any deductible or self-insured retention. Santa Barbara court insurance requirements.
• Limits set by scope of work. In questions and answers for solicitation DCAM-24-NC-RFP-0003, covering citywide waste collection, the District of Columbia's Department of General Services said its Office of Risk Management sets coverages and limits based on the scope of work. The answer described $10 million as that office's standard umbrella requirement for trash and recycling services. The office would consider a $5 million umbrella if the underlying general liability limits were higher, such as $5 million per occurrence and $5 million aggregate. DC DGS questions and answers.

These examples are specific to those entities. For your contract, ask three questions: does the required limit apply per occurrence, in aggregate or both; may an umbrella or excess layer count toward it; and must the umbrella carry the same additional insured status as the primary policy? A certificate of insurance summarizes coverage, so confirm additional insured status in the policy endorsements. Our certificate versus additional insured checklist and the COI and contract insurance checklist help you track each requirement.

Motor carriers: a legal minimum, then the contract

Trucking adds a federal floor. Under 49 CFR 387.9, a for-hire motor carrier hauling nonhazardous property in interstate or foreign commerce in vehicles of 10,001 pounds or more must maintain at least $750,000 in financial responsibility for public liability. Certain hazardous materials require $1 million or $5 million. 49 CFR 387.9 on eCFR.

Section 387.7 says proof consists of Form MCS-90 endorsement(s) issued by an insurer or insurers, an MCS-82 surety bond, or an FMCSA self-insurance authorization. 49 CFR 387.7 on eCFR. If you plan to count an umbrella or excess layer toward the federal minimum, ask the insurer how that layer will be evidenced. Then read each shipper or broker contract for its own insurance terms, and check them separately from the federal figure.

Umbrella premiums depend on your business and the specific proposal, so compare actual offers rather than a national average. CDI explains that commercial premiums start from a simple formula, rate multiplied by a rating exposure such as payroll or gross sales, often adjusted by experience modifications, schedule rating or judgment rating. Claims experience is reflected in the rating. CDI describes commercial policies in general, so ask the umbrella insurer which factors its rating uses. CDI on how commercial policies are rated.

For its own umbrella product, The Hartford says cost varies by state and can depend on the amount of underlying coverage, the limit, the type of business and the business's size. Treat that as one insurer's description of its pricing. The Hartford on umbrella cost factors.

The umbrella premium is only part of the cost. If one insurer requires higher underlying limits than another, the price of your general liability or auto policy may change as well. Compare the whole liability program: each underlying policy, the umbrella, any self-insured retention and the fees.

Also ask whether the umbrella insurer is admitted in your state. CDI explains that a business with significant losses, high-risk operations or a recent start may not find coverage in the standard market and may turn to surplus line insurers. In California, the state guarantee association that protects claims with admitted insurers does not apply to surplus line insurers. CDI on surplus line insurance.

The quote comparison worksheet keeps two or three umbrella proposals side by side, including their underlying requirements and open questions. Want a follow-up from PolicyBenchmark on your umbrella questions? Request coverage help.