15.2 Commercial Umbrella and Excess Liability

Three jobs of a commercial umbrella

A commercial umbrella is widely tested because candidates confuse it with a straight excess policy. A true umbrella performs three distinct functions:

1. Excess limits - it pays above the limits of scheduled underlying policies (CGL, commercial auto, employers liability) once those are exhausted by a covered loss.
2. Drop-down - when an aggregate limit in an underlying policy is reduced or exhausted by other losses, the umbrella drops down to take its place for subsequent claims.
3. Broadened coverage - it can cover certain losses the underlying does not, subject to a Self-Insured Retention (SIR) that the insured pays first.

Umbrella vs. straight excess (follow-form)

A follow-form excess policy copies the exact coverage grants, conditions, and exclusions of a single underlying policy and simply adds limit. If the underlying excludes a loss, the follow-form excess excludes it too. A true umbrella has its own broader insuring agreement, so it may cover a loss the underlying excluded - but only after the SIR is satisfied.

The maintenance-of-underlying condition

Every umbrella requires the insured to maintain the scheduled underlying limits (the schedule of underlying insurance). If the insured lets an underlying policy lapse or carries less than required, the umbrella treats the gap as if the required underlying limit were still in force. The insured - not the umbrella - eats that difference.

Worked example: The umbrella requires $1,000,000 CGL underlying. The insured negligently carries only $500,000 CGL. A covered $2,000,000 judgment occurs.

• Underlying actually pays: $500,000
• Umbrella treats $1,000,000 as if in force; it pays only the excess above $1,000,000: $1,000,000
• The insured personally absorbs the $500,000 gap between actual and required underlying.

How the SIR works on gap losses

When a loss is not covered by any underlying policy but is covered by the broader umbrella insuring agreement, there is no underlying limit to exhaust. Instead the insured pays the Self-Insured Retention first, then the umbrella responds.

Example: A $250,000 covered loss is excluded by the underlying CGL but covered by the umbrella. The SIR is $10,000.

• Insured pays SIR: $10,000
• Umbrella pays: $240,000

Contrast with a loss that is covered underlying: there the underlying limit, not the SIR, must be exhausted before the umbrella pays. A common trap answers "pay the SIR" when the underlying actually covers the loss - in that case the underlying limit applies, not the SIR.

What an umbrella does and does not sit over

Umbrellas commonly attach above:

• Commercial General Liability (per-occurrence and aggregate)
• Commercial Auto liability
• Employers Liability (Part Two of workers compensation)

Umbrellas do not provide excess over workers compensation statutory benefits (Part One) - those are unlimited by statute, so there is nothing to be "excess" of. Umbrellas also typically exclude professional liability, pollution beyond underlying, and intentional acts. Personal injury and advertising injury are usually picked up, often broader than the underlying.

Limits, aggregates, and concurrency

Umbrella limits are large round numbers - $1M, $5M, $25M, $50M+ - and carry their own aggregate separate from the underlying aggregates. When several layers stack (primary, umbrella, then high excess from different carriers), each layer attaches at the exhaustion point of the layer below.

Stacking example: Primary CGL $1M, umbrella $5M excess of $1M, high excess $10M excess of $6M. A $9M judgment pays: primary $1M, umbrella $5M (taking the loss to $6M), high excess $3M. The $9M is fully covered with $7M of high-excess limit unused.

For the exam, identify each layer's attachment point and confirm the loss is high enough to reach it before that layer pays a dollar.

Defense costs and "in addition" vs "within"

Like a CGL, most umbrellas pay defense in addition to limits when the underlying is also defending - the umbrella simply has a duty to defend if the underlying limits are exhausted or do not apply. When the umbrella drops down because of an exhausted underlying aggregate, it assumes the defense obligation as well.

A common test trap pairs an umbrella (broad, gap-filling, SIR for non-underlying losses) against a bumbershoot policy - a marine-flavored umbrella for shipping/maritime risks. Recognize the umbrella's three functions (excess, drop-down, broadening) as the defining trait and you will not be misled by look-alike answers.

Three Functions of an Umbrella

A commercial umbrella is more than extra limits; the exam tests its three distinct functions:

A true umbrella is broader than the underlying and pays losses not covered below (after the SIR), while a straight excess / follow-form policy only adds limits and follows the underlying terms exactly - it covers nothing the underlying does not. Distinguishing true umbrella from follow-form excess is a frequent test point.

The SIR and the Maintenance-of-Underlying Rule

Two mechanics govern when the umbrella pays. First, the insured must maintain stated underlying limits (a required CGL, auto, and employers liability schedule). If the insured fails to maintain them, the umbrella treats the gap as if the required underlying limit were in force, and the insured personally absorbs that gap - the umbrella does not drop down to fill a self-created shortfall.

Second, when a loss is covered by the umbrella but not by any underlying policy, the insured first pays the Self-Insured Retention (SIR) - a deductible-like amount (often $10,000 or $25,000) - before the umbrella responds. Umbrella limits attach above the CGL, commercial auto, and employers liability, but not above workers' compensation statutory benefits, because Part One has no limit for the umbrella to sit over. A worked scenario: a $2M liability loss with a required $1M underlying CGL the insured let lapse - the umbrella pays $1M (its excess layer) and the insured eats the $1M underlying gap.