15.2 Commercial Umbrella and Excess Liability

Commercial Umbrella and Excess Liability

A commercial umbrella sits above a business's primary liability policies and does three jobs: it provides higher limits, it drops down to fill gaps the primary missed, and it covers some claims excluded by the primary subject to a self-insured retention. Excess liability, by contrast, only raises limits and follows the underlying form exactly. Knowing this distinction is the single most tested concept in this section.

Umbrella limits commonly run $1 million to $25 million or higher, written over scheduled underlying policies: Commercial General Liability (CGL), Business Auto, and Employers Liability (Workers Comp Part Two).

The Three Functions of an Umbrella

The self-insured retention (SIR) is the umbrella's deductible, used only for the third function. When the primary policy already covers a loss, the umbrella pays nothing until the primary limit is exhausted - there is no SIR in that scenario.

Required Underlying Limits

Umbrellas require the insured to maintain scheduled underlying limits. Typical minimums:

• CGL: $1,000,000 per occurrence / $2,000,000 general aggregate
• Business Auto: $1,000,000 combined single limit
• Employers Liability: $500,000 / $500,000 / $500,000

The maintenance condition requires the insured to keep these in force. If the insured lets a required underlying policy lapse or reduces its limit, the umbrella treats the underlying as if it were still in full force - meaning the insured personally absorbs the gap created by the lapse.

Worked Layering Example

A contractor carries CGL with a $1,000,000 per-occurrence limit and a $5,000,000 commercial umbrella with a $10,000 SIR. Consider two losses:

Loss 1 - covered by both: A $3,500,000 judgment for bodily injury covered by the CGL. The CGL pays its $1,000,000 limit. The umbrella pays the excess: $3,500,000 - $1,000,000 = $2,500,000. The SIR does not apply because the primary covered the claim.

Loss 2 - covered only by umbrella: A $200,000 claim the CGL excludes but the umbrella covers. There is no underlying payment, so the insured pays the $10,000 SIR and the umbrella pays $200,000 - $10,000 = $190,000.

Coverage Trigger and Exhaustion

Most commercial umbrellas are written on an occurrence trigger matching the CGL: coverage responds to bodily injury or property damage that occurs during the policy period, regardless of when the claim is made. The umbrella does not pay until the underlying limit is exhausted by payment of covered claims - merely incurring defense costs in the underlying does not erode it unless the underlying is a defense-inside-limits form.

Defense under an umbrella is usually provided only when the claim is not covered by an underlying policy; when the primary defends, the umbrella has no separate duty to defend until that primary is exhausted.

Common Exclusions and Traps

• Workers compensation statutory benefits (Part One) are always excluded, though Employers Liability (Part Two) can be a scheduled underlying.
• Care, custody, or control and most professional liability are excluded; an umbrella is not a substitute for E&O.
• Owned-aircraft and watercraft beyond stated lengths may be excluded.
• A "gap" trap: if the primary aggregate is partly used up by an earlier claim, a later large loss may exceed less underlying than the schedule states. The umbrella may drop down, but the insured still owes the now-reduced underlying amount.

Umbrella vs. Excess - The Core Distinction

The exam returns repeatedly to the difference between a true umbrella and a follow-form excess policy. An umbrella is broader than its underlying coverage: it can drop down to pay claims the primary excluded (subject to the SIR) and provides its own definitions in some areas. A follow-form excess policy simply mirrors the underlying terms and adds limit - it covers nothing the primary would not, it just raises the ceiling.

So a claim excluded by the CGL is potentially covered by an umbrella (after the SIR) but never by a follow-form excess. When a question asks whether a higher layer can respond to a loss the primary excluded, the answer turns entirely on whether the upper layer is an umbrella or pure excess.

How the SIR Differs From a Deductible

The self-insured retention functions only on the umbrella's drop-down/broadening function - the situation where no underlying policy responds. The insured pays the SIR, then the umbrella pays above it.

This differs from a deductible, which the insurer would advance and then collect back; with an SIR the insured genuinely retains and pays that first layer of loss itself, including any duty to investigate and defend below the retention unless the policy says otherwise. Recognizing that the SIR applies only when the primary does not respond - and not when a covered claim simply pierces the underlying limit - prevents a common wrong answer.

Maintenance of Underlying and the Lapse Trap

The maintenance-of-underlying-insurance condition is a frequent trap. The umbrella requires the insured to keep the scheduled primary policies in force at their stated limits. If the insured lets a required policy lapse, cancels it, or carries a lower limit than scheduled, the umbrella still treats the underlying as if it were fully in place, and the insured personally absorbs the difference between the actual and required underlying limits. The umbrella does not silently fill the hole created by the insured's own failure to maintain coverage - a point worth memorizing because it shifts a large loss onto the insured.