15.2 Commercial Umbrella and Excess Liability

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:

1. Excess limits over the underlying policies once they are used up.
2. Drop-down coverage for claims the umbrella covers but the underlying excludes (subject to a retention).
3. Reinstatement of underlying aggregate limits that have been eroded by prior claims.

Typical Underlying Schedule

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

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:

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.

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.