15.2 Commercial Umbrella and Excess Liability
Key Takeaways
- Umbrellas provide excess limits, drop-down primary coverage, and gap-fill; pure excess only follows form and adds limits.
- The self-insured retention applies only to drop-down claims not covered by any underlying policy.
- When underlying coverage is triggered, the umbrella pays the excess and no SIR applies.
- The maintenance warranty makes the umbrella respond as if required underlying limits were in force, leaving the insured to absorb any underlying deficiency.
- Non-concurrent underlying dates create coverage gaps - a frequent exam trap.
Commercial Umbrella and Excess Liability
A commercial umbrella sits above primary liability policies (commercial general liability, commercial auto, and employers liability) and does three things: it provides excess limits over those underlying policies, it drops down to provide primary coverage for some claims the underlying policies exclude, and it may cover gaps where underlying coverage is exhausted. A pure excess liability policy, by contrast, only follows the underlying form and adds limits - it does not drop down.
Required Underlying Limits and the SIR
The umbrella requires the insured to maintain stated underlying limits (a schedule of underlying insurance). Typical requirements are $1,000,000 per occurrence CGL, $1,000,000 combined single limit commercial auto, and $500,000/$500,000/$500,000 employers liability.
When a loss is covered by the umbrella but NOT by any underlying policy (a drop-down claim), the insured pays a self-insured retention (SIR) - often $10,000 or $25,000 - before the umbrella responds. The SIR functions like a deductible only on drop-down claims.
How the Layers Stack - Worked Example
Assume: CGL $1,000,000 occurrence limit, umbrella $5,000,000 limit, SIR $10,000.
Scenario A (covered by both): A $3,500,000 liability judgment. The CGL pays its $1,000,000; the umbrella pays the excess $2,500,000. No SIR applies because the underlying policy was triggered.
Scenario B (drop-down): A $300,000 claim covered by the umbrella but excluded by the CGL. The umbrella drops down; the insured first pays the $10,000 SIR, then the umbrella pays $290,000.
Scenario C (exhausted aggregate): The CGL $2,000,000 aggregate is already used up by prior claims. A new $800,000 claim - the umbrella drops down and pays from dollar one (subject to SIR) because no underlying limit remains.
Maintenance Warranty
The insured warrants it will maintain the scheduled underlying insurance in full force. If the insured fails to maintain required underlying limits, the umbrella responds only as if those limits were still in place - the insured effectively self-insures the gap.
Example: Required underlying CGL is $1,000,000 but the insured bought only $500,000 and lets the warranty lapse. On a $1,500,000 loss the umbrella pays $500,000 (the excess above the required $1,000,000), and the insured eats the $500,000 uninsured gap created by the deficient primary.
Concurrency, Following Form, and Defense
- Following-form excess mirrors the underlying terms exactly; a true umbrella is broader than underlying.
- Defense costs: A primary CGL pays defense in addition to limits. The umbrella usually owes defense only when it drops down (no underlying coverage) - otherwise the primary insurer defends.
- Concurrency means the underlying policies share the same effective dates and terms as the umbrella; non-concurrent dates create coverage gaps the exam loves to test.
- Personal & advertising injury and worldwide coverage are often broader on the umbrella than on the CGL.
Aggregate Limits and Multiple Underlying Policies
Umbrellas usually carry their own aggregate limit that applies across all claims in the policy year (except for auto, where most umbrellas mirror the per-occurrence approach). When several underlying policies sit beneath the umbrella - CGL, business auto, and employers liability - the umbrella attaches above each one at that policy's required limit. The schedule of underlying insurance is therefore the roadmap: it states the underlying limits the umbrella attaches over, and any gap between what is scheduled and what is actually purchased becomes the insured's problem under the maintenance warranty.
Umbrella Exclusions
Umbrellas are broad but not unlimited. Typical exclusions track the underlying liability exclusions plus umbrella-specific ones: workers compensation and statutory obligations, ERISA, employment practices, professional liability, pollution (often), liability assumed under contract beyond an insured contract, owned/operated aircraft and watercraft above stated sizes, and intentional injury. Because the umbrella does not cover first-party property or the insured's own employees' on-the-job injuries (workers comp), candidates should never expect an umbrella to backstop a property or comp loss - it is a third-party liability instrument.
Umbrella vs. Excess and the Self-Insured Retention
A commercial umbrella sits above the insured's primary liability policies (CGL, business auto, employers liability) and does three things, which the exam tests as a set:
- Excess limits over the underlying policies once their limits are exhausted.
- Drop-down to provide primary coverage (subject to a self-insured retention, SIR) for claims the underlying policies do not cover but the umbrella does.
- Broader coverage than some underlying forms in limited respects.
| Term | Meaning |
|---|---|
| Underlying limits | Minimum primary limits the umbrella requires (e.g., $1M CGL, $1M auto, $1M EL) |
| Self-Insured Retention (SIR) | A deductible-like amount the insured pays on claims covered only by the umbrella |
| Excess liability | Follows form over primary; usually no drop-down and no SIR |
Exam trap: An umbrella can drop down and pay (after the SIR) for a claim the primary excludes but the umbrella covers - an excess (follow-form) policy generally cannot, because it simply mirrors and sits on top of the underlying coverage. The umbrella requires the insured to maintain the scheduled underlying limits; if the insured lets a primary policy lapse, the umbrella treats the underlying limit as still in place, leaving the insured exposed for that layer.
Which exposure would a commercial umbrella policy typically NOT cover, even when it drops down?
A commercial umbrella has a $5,000,000 limit and a $10,000 SIR over a $1,000,000 CGL. A $3,500,000 judgment is covered by BOTH the CGL and the umbrella. How is it paid?
An insured is required to maintain $1,000,000 underlying CGL but lets coverage drop to $500,000. On a $1,500,000 covered loss, what does the umbrella pay?