15.2 Commercial Umbrella and Excess Liability
Key Takeaways
A commercial umbrella sits above scheduled underlying policies (CGL, commercial auto, employers liability) and pays after those primary limits are exhausted.
An umbrella can be broader than the underlying (drop-down to fill gaps subject to a self-insured retention), while a straight excess policy follows form and only adds limit.
The self-insured retention (SIR) is the amount the insured pays out of pocket on a claim the umbrella covers but the underlying does not.
Insurers require minimum underlying limits; if the insured carries less, a gap exists that the insured must absorb before the umbrella attaches.
Umbrella limits are typically written in $1M increments and can be layered, with each excess layer attaching above the one below it.
What an Umbrella Does
A commercial umbrella is a high-limit liability policy that sits above a schedule of underlying primary policies and pays only after those primary limits are exhausted. It serves three functions:
- Excess limits over the underlying policies once they are used up.
- Drop-down coverage for claims the umbrella covers but the underlying excludes (subject to a retention).
- Reinstatement of underlying aggregate limits that have been eroded by prior claims.
Typical Underlying Schedule
| Underlying Policy | Common Minimum Underlying Limit |
|---|---|
| Commercial General Liability (CGL) | $1,000,000 per occurrence / $2,000,000 aggregate |
| Business Auto (commercial auto) | $1,000,000 combined single limit |
| Employers Liability (WC Part B) | $500,000 / $500,000 / $500,000 |
Exam trap: The umbrella does not sit over the workers compensation Part A (statutory benefits) - it sits over Employers Liability (Part B) only.
Umbrella vs. Excess Liability
| Feature | Commercial Umbrella | Straight Excess |
|---|---|---|
| Adds limit | Yes | Yes |
| Can be broader than underlying | Yes (drop-down) | No - follows form |
| Self-insured retention applies | Yes, on drop-down claims | Usually no |
| Purpose | Broaden + heighten coverage | Heighten limit only |
A follow-form excess policy adopts the exact terms of the underlying, so it can never cover something the primary excludes - it only raises the ceiling.
How the Self-Insured Retention Works
The self-insured retention (SIR) is the amount the insured pays out of pocket when the umbrella drops down to cover a loss the underlying policy does not. It functions like a deductible that applies only to those broadening claims.
Worked example: A business carries CGL with a $1,000,000 per-occurrence limit and a $5,000,000 umbrella with a $10,000 SIR.
- Scenario A - covered by both: A $3,000,000 judgment. The CGL pays its $1,000,000 limit; the umbrella pays the remaining $2,000,000 as excess. No SIR applies because the underlying responded.
- Scenario B - drop-down: A $250,000 claim that the CGL excludes but the umbrella covers. The insured pays the $10,000 SIR, and the umbrella pays $240,000.
The Coverage Gap Trap
Umbrella insurers require minimum underlying limits. If the insured carries less than required, the difference becomes a gap the insured must absorb before the umbrella attaches.
Example: The umbrella requires $1,000,000 underlying CGL, but the insured only bought $500,000. On a $2,000,000 loss, the CGL pays $500,000, the insured personally absorbs the $500,000 gap, and the umbrella pays the excess above $1,000,000.
Layering Excess Limits
Large organizations stack coverage in layers, each attaching above the one below:
- Primary CGL: $1M
- Umbrella (1st layer): $5M excess of $1M (covers $1M-$6M)
- Excess (2nd layer): $10M excess of $6M (covers $6M-$16M)
Each layer pays only after the layer beneath it is exhausted.
Maintenance of Underlying Insurance
Umbrella policies contain a maintenance condition requiring the insured to keep the scheduled underlying policies in full force. If the insured lets a primary policy lapse or reduces its limit, the umbrella treats the underlying as if it were still in place - meaning it pays only the excess above the original required limit, and the insured eats the difference.
What an Umbrella Adds Beyond the Primary
A commercial umbrella commonly broadens coverage in ways the primary does not, subject to the SIR:
| Exposure | Often Excluded by Primary | Picked Up by Umbrella (with SIR) |
|---|---|---|
| Worldwide liability | Limited territory | Broader territory |
| Personal/advertising injury | Sub-limited or excluded | May be covered |
| Liquor liability (non-business) | Excluded host scenarios | May be covered |
Because the umbrella can be broader than the underlying, the drop-down + SIR mechanism is what separates it from a follow-form excess policy.
Reading a Loss Across the Stack
Worked example: A business has $1M CGL, a $5M umbrella, and a $10M second excess layer. A catastrophic judgment of $9,000,000 is entered.
- CGL pays its $1,000,000 limit.
- The umbrella pays $5,000,000 (covering $1M-$6M).
- The second excess layer pays the remaining $3,000,000 (covering $6M-$9M).
- The $10M excess layer is only partially used; $7,000,000 of its capacity remains for any future or additional loss.
This stacking illustrates why high-hazard businesses buy layered limits well above the primary - a single large verdict can blow through $1M in seconds.
Umbrella vs. Excess - the key distinction
The terms are not interchangeable, and the difference is heavily tested. A true umbrella does three things: (1) provides excess limits over scheduled underlying policies (CGL, auto, employers liability); (2) drops down to pay when an underlying aggregate is exhausted; and (3) provides broader coverage than the underlying for some claims not covered below, subject to a self-insured retention (SIR). An excess (following-form) policy does only the first - it adds limits but follows the underlying terms exactly and grants no broader coverage.
| Feature | Umbrella | Excess (following form) |
|---|---|---|
| Extra limits | Yes | Yes |
| Broader coverage | Yes (with SIR) | No - mirrors underlying |
| Drop-down on exhausted aggregate | Often yes | Generally no |
| Self-insured retention | Applies to gap claims | Follows underlying |
The Self-Insured Retention and Underlying Requirements
When an umbrella covers a loss the underlying policy does not (for example, a worldwide claim the CGL excludes), the insured first pays the self-insured retention - the umbrella's deductible for those gap claims - before the umbrella responds. The umbrella also lists required underlying limits (commonly $1M CGL each occurrence, $1M/$1M auto, and an employers-liability minimum). If the insured fails to maintain those limits, the umbrella treats coverage as if the required underlying were in place and the insured self-insures the shortfall.
A producer reviewing an account must confirm the primary limits still satisfy the umbrella's schedule, because a lapsed or reduced underlying limit silently shifts exposure back to the insured.
Exam Tip: Umbrella = extra limits + drop-down + broader coverage (subject to an SIR); excess = extra limits only, following the underlying form. Maintaining required underlying limits is a condition of umbrella coverage.
A contractor has $1,000,000 CGL coverage and a $5,000,000 commercial umbrella with a $10,000 self-insured retention. A $250,000 claim is excluded by the CGL but covered by the umbrella. How much does the umbrella pay?
$250,000 with no payment from the insured
$240,000, after the insured pays the $10,000 self-insured retention
$0 because the umbrella never covers anything the CGL excludes
$1,000,000 because the underlying limit must be paid first
Which statement best distinguishes a follow-form excess liability policy from a commercial umbrella?
An excess policy can drop down and cover gaps the underlying excludes, while an umbrella only adds limit
A follow-form excess policy only adds limit and cannot be broader than the underlying, while an umbrella can be broader
Both are identical in scope and differ only in price
An umbrella never requires minimum underlying limits, but excess always does
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