15.2 Commercial Umbrella and Excess Liability
Key Takeaways
- A Commercial Umbrella does three jobs: provides excess limits above scheduled underlying policies, drops down to cover gaps the underlying excludes (subject to a Self-Insured Retention), and broadens coverage in those drop-down situations.
- Excess (follow-form) liability only adds limits and follows the underlying policy's terms exactly; it never drops down or broadens, so it is narrower and cheaper than a true umbrella.
- Underlying policies must meet required minimums (often CGL $1M/$2M and Business Auto $1M CSL); if the insured carries less, the umbrella treats the difference as if the underlying limit existed.
- When the umbrella drops down for a coverage the underlying excludes entirely, the insured first pays a Self-Insured Retention (SIR), commonly $10,000-$25,000.
- Limits stack vertically: the underlying pays first, then the umbrella pays above the underlying's exhausted limit up to the umbrella limit.
Three Functions of a Commercial Umbrella
A Commercial Umbrella liability policy performs three distinct jobs:
- Excess limits - it pays above the limits of scheduled underlying policies once those are exhausted.
- Drop-down (gap-fill) - it covers some claims the underlying excludes entirely, after the insured pays a Self-Insured Retention (SIR).
- Broader coverage - in those drop-down situations it may respond more broadly than any underlying policy.
| Feature | Commercial Umbrella | Excess (Follow-Form) |
|---|---|---|
| Adds limits | Yes | Yes |
| Drops down for gaps | Yes (after SIR) | No |
| Broadens coverage | Yes | No |
| Price | Higher | Lower |
Required Underlying Limits
An umbrella sits on a schedule of underlying policies, each of which must carry a stated minimum. Typical requirements:
| Underlying Policy | Common Required Limit |
|---|---|
| Commercial General Liability (CGL) | $1,000,000 each occurrence / $2,000,000 aggregate |
| Business Auto | $1,000,000 Combined Single Limit (CSL) |
| Employers Liability | $500,000 or $1,000,000 |
Exam Trap: If the insured carries LESS than the required underlying limit, the umbrella does not fill that self-created gap. It pays only above the limit the insured was supposed to maintain - the insured eats the shortfall.
How the Limits Stack
Liability limits apply vertically: the underlying policy pays first, then the umbrella pays the excess above the underlying limit, up to the umbrella's own limit.
Worked Example - Excess Function
A business carries CGL $1,000,000 each occurrence and a $5,000,000 umbrella. A covered judgment is $4,500,000.
- CGL pays its full $1,000,000.
- Umbrella pays the remaining $3,500,000 (well within its $5M limit).
- Total available protection on a single claim is $6,000,000 ($1M + $5M).
Worked Example - Drop-Down Function
The same business is sued for an exposure the CGL excludes entirely, so there is no underlying coverage. The umbrella drops down but the insured must first satisfy a $25,000 SIR.
If the loss is $300,000, the insured pays the $25,000 retention and the umbrella pays $275,000.
Self-Insured Retention vs. Deductible: An SIR is an amount the insured pays and administers before the umbrella responds to a drop-down claim; it differs from a deductible, which the insurer typically advances and then bills back.
Quick Reference
- Umbrella = excess + drop-down + broadening.
- Excess/follow-form = limits only, mirrors underlying wording.
- SIR applies only when the umbrella drops down for an uncovered-by-underlying claim.
Maintenance of Underlying Insurance
Every umbrella contains a maintenance of underlying insurance condition: the insured promises to keep each scheduled underlying policy in force at the required limit for the whole umbrella term. If a CGL is allowed to lapse or is reduced, the umbrella behaves as if the required underlying limit still existed - the insured absorbs the gap created by failing to maintain coverage. This protects the umbrella insurer from suddenly becoming a primary carrier.
Aggregate Limits and the Annual Reset
Umbrella limits typically carry both a per-occurrence limit and an annual aggregate. The aggregate caps total payouts for the policy year across all claims. A products-heavy manufacturer can exhaust an aggregate with several claims, leaving later losses uninsured until the aggregate resets at renewal. Candidates should recognize that exhausting the underlying CGL aggregate can cause the umbrella to drop down and act as primary for the remainder of the term - one of the few drop-down situations that does not require an SIR.
Why Businesses Buy High Limits
A single catastrophic liability judgment - a fatal auto accident in a company vehicle, a fire injuring multiple tenants - can far exceed a $1M primary limit. Umbrellas commonly run $5M, $10M, or $25M and cost relatively little per million because the underlying layer absorbs the frequent, smaller claims. The umbrella insures the rare, severe loss, which is exactly the risk-transfer logic the exam expects you to articulate.
Umbrella vs. Excess - When Each Is Sold
An insured chooses a commercial umbrella when it wants both higher limits and the broadening/drop-down safety net for gaps in its primary program. A buyer chooses follow-form excess when it simply wants more limit over a well-built primary tower and is comfortable that the excess will mirror primary terms exactly. Large accounts often stack several excess layers above a single umbrella, each following the form below it, to reach $50M or more economically.
Reading the Schedule of Underlying
The declarations list each underlying policy, its carrier, and its required limit. On the exam, expect a fact pattern that quietly shows the insured carrying below a scheduled minimum - say $500,000 CGL where $1,000,000 is required. The umbrella then responds as though $1,000,000 existed, and the $500,000 gap is the insured's own retention. This 'as-if' rule and the drop-down/SIR rule are the two most commonly tested umbrella mechanics, so practice distinguishing a true coverage gap (umbrella drops down after SIR) from an inadequate-limit gap (insured absorbs the shortfall).
Commercial Umbrella vs. Excess Liability
A commercial umbrella provides three functions the exam tests as a set: (1) excess limits above the primary CGL, auto, and employers-liability policies; (2) drop-down coverage when an underlying aggregate is exhausted; and (3) broader coverage for some claims not covered by the underlying policy, subject to a self-insured retention (SIR). A pure excess liability policy, by contrast, only adds limits and follows form — it provides no broader coverage and does not drop down for new exposures.
| Feature | Umbrella | Excess (follow-form) |
|---|---|---|
| Adds limits | Yes | Yes |
| Drops down when underlying aggregate gone | Yes | Usually no |
| Covers some claims underlying excludes | Yes (subject to SIR) | No |
| Self-insured retention | For coverage gaps | None |
The umbrella requires the insured to maintain stated underlying limits; if the insured fails to, the umbrella pays only as if those limits were in place (the insured bears the gap).
Worked drop-down scenario: A business has a $1M CGL Each Occurrence / $2M General Aggregate and a $5M umbrella. Earlier losses have eroded the CGL aggregate to $0. A new $1.2M covered claim arrives. The primary pays nothing (aggregate exhausted), so the umbrella drops down, pays the loss above the insured's SIR (say $10,000), and covers the rest up to its limit.
Worked broader-coverage scenario: The umbrella covers a liquor host claim that the underlying CGL excluded; the insured first pays the SIR, then the umbrella responds — something a follow-form excess policy would not do. Distinguishing umbrella (drop-down + broadening + SIR) from excess (limits only, follows form) is the central exam point.
A firm has CGL with a $1,000,000 occurrence limit and a $5,000,000 commercial umbrella. A covered judgment is $4,500,000. How much does the umbrella pay?
Which statement best distinguishes a commercial umbrella from a follow-form excess liability policy?