Excess Liability
A liability policy providing additional limits above underlying policies, typically following the same terms and conditions as the underlying coverage.
What It Is
Excess Liability insurance provides additional limits of liability above the insured's underlying (or primary) liability policies. Unlike a true umbrella, an excess liability policy is typically a following-form policy—it follows the same terms, conditions, definitions, and exclusions as the underlying policy it sits above. It does not broaden coverage or drop down to cover claims excluded by the underlying.
Excess liability policies are commonly used in layered liability programs where multiple layers of coverage are stacked above the primary policy. For example, a large construction firm might have a $2M primary CGL, a $5M first excess layer, a $10M second excess layer, and a $25M third excess layer—totaling $42M in liability protection.
Because excess policies follow form, they are simpler to underwrite and often less expensive per dollar of coverage than true umbrellas. However, they provide no gap-filling or drop-down function, making the breadth of the underlying policy more critical.
Why It Matters for Brokers
Brokers must understand the difference between excess liability and umbrella to properly advise clients. For a small-to-mid-size business, a true umbrella with drop-down coverage provides more comprehensive protection. For large accounts with complex layered programs, excess liability policies in upper layers are standard because the primary and lead umbrella layers provide the breadth of coverage, while excess layers simply add limit height.
Real-World Example
A manufacturing company purchases a $1M CGL, a $5M umbrella (lead layer), and a $10M excess liability policy (second layer), creating a $16M liability tower. A product liability claim results in a $12M verdict. The CGL pays $1M, the umbrella pays $5M, and the excess pays $6M of its $10M limit. If the claim involved a coverage type excluded by the CGL but covered by the umbrella, the umbrella would drop down. The excess policy, however, would only respond if the underlying policies had already paid—it provides no independent drop-down.
Common Mistakes
- 1Using the terms 'umbrella' and 'excess' interchangeably when they have fundamentally different coverage characteristics.
- 2Placing an excess policy above a narrow underlying policy without recognizing that the excess will follow the same narrow terms.
- 3Not verifying that the excess policy's attachment point matches the underlying policy's limit—a gap between layers creates uninsured exposure.
How brokerageaudit.com Handles This
brokerageaudit.com's Policy Checker maps each layer of a liability tower and verifies that attachment points match the underlying limits with no gaps between layers. The system distinguishes between umbrella and excess policies in the account summary and highlights whether each layer provides following-form or broader coverage. This layered view helps brokers visualize the complete liability program.