Excess Liability Insurance: How Carriers Assess High-Limit Risks and Coverage Needs

The primary general liability policy of the trucking company has a limit of $1 million. Following a multi-vehicle accident involving one of its drivers, a jury awards $4.2 million. The difference between the amount paid by the primary policy and the actual amount that the company has to pay is precisely the purpose of excess liability insurance, and whether that gap is settled properly or results in a coverage dispute is almost entirely determined by the way the excess coverage was underwritten initially.

In recent years the amounts awarded by juries have risen sharply. A case that previously involved $500,000 is now usually awarded $1 million, and those cases that had previously settled in the lower seven figures now regularly result in verdicts in the eight figures. It is precisely for this reason that decisions regarding excess liability coverage now have greater importance for underwriters than they did a decade ago.

The guide explains the real function of excess liability insurance, the way it is different from a commercial umbrella policy, and the factors that insurers consider when deciding how to arrange and price a high-limit risk. It is intended for members of underwriting teams and MGAs who are handling excess submissions, not merely for people who are comparing quotes.

If the members of your team carry out the file preparation and documentation work associated with these underwriting decisions, then our article on underwriting support for carriers explains where that kind of execution work usually is situated.

What Is Excess Liability Insurance?

Excess liability insurance includes extra coverage limits, which are placed above the limit of the primary policy and only come into effect after that primary policy’s limit has been used up. The point at which the excess cover becomes active is known as the attachment point and is generally set at the limit of the policy that is below it.

What is excess liability insurance, simply put? If a business has a general liability policy with a limit of $1 million and an excess policy with a limit of $5 million providing cover above that policy, then the excess insurance remains inactive until the entire $1 million from the first layer has been used up; after that limit has been reached, the excess policy takes over and pays for the further costs, up to its own limit.

With larger accounts a single extra layer is usually not sufficient, so businesses construct towers of layered excess by attaching multiple policies at various attachment points in order to reach the total limit they require. Most of the excess carriers’ work is generally carried out in the upper section of such a tower.

Excess Liability Insurance vs. Commercial Umbrella Insurance

This is one of the most confusing points, even among people who are researching commercial umbrella insurance as an alternative.

How is commercial umbrella insurance different? An umbrella policy may in certain cases provide coverage even when the underlying policy fails to cover a particular claim, functioning as the primary cover in some limited circumstances. A pure excess policy, often referred to as follow-form excess, merely replicates the coverage that the primary policy already offers but at a higher limit. When insurers or MGAs are writing either of these types of policies, they must make it clear to the applicant what kind of policy they are actually providing, since the two types are constantly confused during the renewal process.

How Carriers Underwrite Excess Liability Risk

Arranging an excess layer involves more than simply putting a higher number on top of the main policy. Before agreeing to attach it at a particular point, the carriers assess a definite number of factors and then price the layer based on those factors.

The suitability of the basic policy: When underwriting excess coverage, great emphasis is placed on whether the main policy in question is properly structured, since a poorly constructed basic policy results in gaps that the excess layer was not intended to cover.

Claims history and loss ratios: It states its history and loss ratios. The underwriters carefully examine the frequency and severity of previous claims. An account which has a record of frequent and high-value claims is charged a different rate from one that has a clear loss record, and the underwriter usually looks into the circumstances surrounding any significant earlier claim as well as the actions the business took afterwards to avoid a recurrence.

Industry and operational exposure: The level of exposure in terms of industry and operations is such that companies in sectors of higher severity such as transportation, construction, and healthcare have a greater amount of excess liability risk than those engaged in lower-risk office-based activities, the difference being directly reflected in the pricing.

Financial strength of the insured: The financial position of the insured. Before the excess layer comes into play, underwriters need to be confident that the business is able actually to cover losses up to the attachment point, hence the financial position affects both how the business is priced and the underwriter’s decision to take on the account.

Attachment point selection: Choosing the attachment point: higher attachment points usually result in lower premiums because the excess carrier makes fewer payouts; on the other hand, lower attachment points lead to higher premiums but provide the insured with quicker access to the extra coverage. In order to select the right figure, the underwriter must balance the account’s risk appetite against realistic loss scenarios, rather than simply applying a standard formula.

Industry benchmarks: Industry benchmarks involve underwriters beginning with the standard level of excess coverage found in a particular industry and then making adjustments according to the specific risk profile of the account in question, thus maintaining consistent pricing among similar accounts while at the same time taking into account the individual differences.

Pricing Benchmarks Underwriters Work From

The cost of commercial excess liability coverage is generally about $600 each year for every $1 million of extra limit, although the initial level of excess coverage usually involves a higher cost per dollar of the limit than the subsequent layers, since it is the one most likely to be activated. The prices vary depending on the industry, the claims history, the number of employees, the location, and the way the basic coverage is structured.

Building an Excess Liability Tower

For policies which require high limits, one excess policy usually isn’t enough to meet the full requirement. The more usual method is to stack a number of policies one on top of the other:

1. The base limit is determined by the primary policy and it covers the first dollar of any loss that is within the coverage.
2. The first excess layer becomes attached when the primary limit has been used up, usually being the most costly layer for each dollar of coverage.
3. On top of that there are further excess layers, each one joining up where the one underneath ends.
4. The total program limit represents the total capacity of all the layers in the tower.

When companies write policies into an existing tower, they need to know the terms used by each of the other layers, because if there is a discrepancy between the exclusions or attachment points of the various layers coverage gaps can result which go unnoticed until a claim actually comes along to expose the weaknesses in the arrangement.

Common Underwriting and Structuring Mistakes

• Ignoring the structure behind the number: Disregarding the structure that lies behind the figure and concentrating solely on the overall limit while failing to take into account the underlying schedule, the exclusions, and the attachment points which in fact determine how the coverage responds.
• Attachment point drift at renewal: At renewal, there is a drift in the point of attachment: either the carrier changes its attachment requirement or the underlying limits are reduced in order to save on the premium, without anyone making any adjustments to the layers surrounding it.
• Fragmented claims handling: Dealing with claims in a fragmented way can greatly complicate the coordination of a claim when a loss actually exceeds the attachment point if the primary and excess coverage are taken out with different insurers.
• Underestimating severity trends: Failing to take into account the trend in severity. Valuing the account based on loss data that comes before the most recent increase in jury verdict amounts, and thus underestimating the actual exposure in excess of the primary layer.

Risk Assessment for Excess Liability Submissions

Because underwriters need to be sure of the underlying program, the loss history, and the financial position of the policy before they can confidently set an attachment point, the amount of documentation required is greater when there are excess submissions than in the case of standard primary policies. The underwriter is able to go through the file efficiently rather than spending hours on manual document reconciliation thanks to a structured risk assessment procedure which includes file review, loss-run validation, and verification of the data against the underwriting guidelines.

The page on our risk assessment services explains how this type of support functions, including the way in which carriers increase their capacity when there is a higher volume of excess submissions.

In-House vs. Outsourced Execution for Excess Underwriting

Those carriers who are considering this trade-off in the context of their overall underwriting operation can look at our comparison of running insurance operations in-house and outsourcing them, where we go into more detail on the differences in cost, risk, and the SLA between the two models.

Evaluating an Underwriting Support Partner for Excess Lines

Because excess and umbrella policies involve such a high level of complexity, the quality of the preparation work has a direct impact on both the speed and accuracy with which an underwriter can reach a decision. When carriers and MGAs obtain outside assistance, they should make sure that their partner actually understands the attachment points, the following-form structures, and the layered towers, rather than treating excess submissions in the same way as a standard primary submission. The guide we provide on how to select an insurance outsourcing partner includes the specific SLA and quality-control questions that are worth asking before entering into any agreement.

How Techsurance Supports Excess Liability Underwriting

Techsurance collaborates with US carriers, MGAs, and TPAs regarding the carrying out of underwriting tasks, such as collecting the necessary documents, reviewing the loss runs, and preparing the files to audit standards, particularly in the case of excess liability insurance where the decision as to the attachment point relies on having the details of the underlying policy correct from the first instance. The final underwriting decision, including the point at which to attach and how to price the layer, remains completely with the carrier’s team. The only thing that changes is the amount of the preparatory work that is carried out on their part rather than by a trained execution partner. For more information about the full range of underwriting, claims, and risk assessment support, please see our services page.

Conclusion:

Excess liability insurance underwriting comes down to reading the layer beneath it accurately: the adequacy of the primary policy, the account’s real claims history, and where the attachment point should actually sit given current severity trends. As jury verdicts keep climbing, the margin for underpricing that layer keeps shrinking, which makes the quality of the underwriting file behind each decision matter more than it used to.

FAQs

What is excess liability insurance?

This additional liability coverage is above the main policy and only comes into effect after the limit of the main policy has been completely used up, offering extra financial protection in the case of large claims.

What’s the difference between excess liability insurance and commercial umbrella insurance?

Extra liability usually takes the same form as the underlying policy it is attached to, introducing a pure limit. In some cases, commercial umbrella insurance can extend coverage beyond that offered by the underlying policy, and at times it can function as primary coverage for the gaps which the underlying policy does not cover.

How do underwriters determine an attachment point?

They compare the account’s claims history, the extent of its exposure to the industry, its financial strength, and the usual industry benchmarks with the insurer’s own risk tolerance, since a higher attachment point reduces the premium but a lower one increases it while at the same time providing quicker access to coverage.

What does an excess liability tower mean?

It refers to multiple excess policies stacked on top of each other and the primary policy, each attaching where the layer below it runs out, used when a single excess policy can’t provide the total limit an account needs.

Why does claims history matter so much in excess underwriting?

Because frequency and severity of past claims are strong predictors of future exposure. An account with a clean loss history typically prices better than one with frequent or severe prior claims, even at the same attachment point.

Can underwriting support services help with excess liability submissions?

Yes. The heavier documentation load on excess files, particularly loss-run review and underlying-policy verification, is well suited to outsourced preparation support, with the underwriter retaining full authority over the actual attachment point and pricing decision.