Underlying Insurance
The primary liability policies (CGL, auto, employers liability) that must be maintained as a condition of the umbrella or excess policy.
What It Is
Underlying insurance refers to the primary liability policies that must be maintained as a condition of the umbrella or excess liability policy. The umbrella policy schedules specific underlying policies with minimum required limits. Common required underlying policies include Commercial General Liability, Commercial Auto Liability, and Employers Liability (part of the workers' compensation policy).
The underlying insurance schedule is a critical component of the umbrella policy because it defines the attachment points for each type of claim. The umbrella carrier relies on the underlying policies to absorb the first layer of liability and will not fill gaps created by inadequate, cancelled, or non-renewed underlying coverage.
Additional underlying policies may be required depending on the insured's operations: liquor liability for businesses serving alcohol, watercraft liability for marine operations, or professional liability for firms with professional exposures. The umbrella may also require underlying coverage for specific exposures that the umbrella covers, such as employee benefits liability or stop-gap employers liability in monopolistic states.
Why It Matters for Brokers
The umbrella policy is only as strong as its underlying foundation. Brokers must verify that all required underlying policies are in force with adequate limits throughout the umbrella policy period. A gap in underlying coverage—whether from a cancelled policy, reduced limits, or a missing required underlying—can leave the insured exposed for the full amount of the retained limit gap, which typically has no dollar cap.
Real-World Example
A restaurant chain carries CGL ($1M/$2M), auto ($1M CSL), and employers liability ($500K/$500K/$500K) as underlying coverage for a $5M umbrella. The umbrella also requires liquor liability as underlying coverage. The broker places liquor liability on the CGL rather than as a separate policy, but the CGL's liquor liability sublimit is only $500,000. A $2.8M liquor-related incident exhausts the $500K sublimit. The umbrella reviews whether the underlying liquor liability requirement is met. If the scheduled underlying required $1M in liquor liability, the insured faces a $500K gap before the umbrella responds.
Common Mistakes
- 1Not reviewing the umbrella's full underlying insurance schedule to verify that all required policies and limits are in place—not just CGL and auto.
- 2Allowing an underlying policy to lapse or cancel without notifying the umbrella carrier and obtaining alternative underlying coverage.
- 3Assuming the umbrella carrier will accept any underlying policy structure without verifying that specific underlying limits meet the scheduled requirements.
How brokerageaudit.com Handles This
brokerageaudit.com's Policy Checker maintains a linked view of the umbrella and all underlying policies, automatically verifying that every scheduled underlying requirement is met. The system tracks underlying policy expiration dates and alerts brokers when any underlying policy is approaching renewal or cancellation, ensuring continuous compliance with the umbrella's requirements. The COI Manager generates certificates showing the complete tower of coverage.