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ATE Insurance for Clinical Negligence Claims: When Is It Worth Considering?

5 Oct 2026

Clinical negligence claims can be some of the most complex and costly disputes in the UK legal system. Establishing that a healthcare provider fell below an acceptable standard of care, and that this caused harm, often requires detailed medical evidence, independent expert opinion and, in many cases, a lengthy litigation process. For claimants and the solicitors representing them, this raises a practical question: how should the financial risk of pursuing a claim be managed?

This is where After the Event insurance becomes relevant. ATE insurance for clinical negligence claims is a type of policy taken out after a potential legal dispute has already arisen, designed to address certain costs risks associated with pursuing litigation. It is not a universal requirement for every case, and its value depends heavily on the specific circumstances of the claim, the funding arrangement in place, and the terms of the policy itself.

This article explains what ATE insurance is, why clinical negligence litigation can carry meaningful financial risk, and the circumstances in which ATE insurance for clinical negligence claims may be worth considering. It does not tell you what to do. Instead, it sets out the practical factors that solicitors, claimants and legal teams typically weigh up when deciding whether this type of cover is appropriate for a particular case.

What Is ATE Insurance for Clinical Negligence Claims?

ATE insurance, or After the Event insurance, is a policy taken out after a legal dispute or potential dispute has already occurred, as distinct from insurance arranged in advance of any incident. In the context of clinical negligence, ATE insurance for clinical negligence claims is typically arranged once a claimant and their solicitor have identified a potential case against a healthcare provider, such as an NHS trust or a private clinician.

The core purpose of clinical negligence ATE insurance is to address specified litigation cost risks that can arise during the life of a claim. Because clinical negligence cases frequently involve expert medical evidence, procedural complexity and the possibility that a claim does not succeed, the policyholder may want a mechanism to manage exposure to certain costs that could otherwise fall on them personally.

It is important to understand that ATE insurance does not fund the claim itself in the way that some other financial arrangements might. Instead, it is a costs risk product. What it covers, and to what extent, depends entirely on the specific policy wording and the underwriting terms agreed with the insurer. 

Why Can Clinical Negligence Claims Create Significant Financial Risk?

Clinical negligence litigation often involves several layers of potential cost that do not typically arise in more straightforward legal disputes.

Expert and medical evidence. Clinical negligence claims usually require independent expert reports, often from more than one medical specialism, to establish breach of duty and causation. These reports can be a significant and recurring cost throughout a case, particularly where a claim runs from early investigation through to trial.

Case complexity and duration. Many clinical negligence disputes involve detailed medical records, conflicting clinical opinions and technical arguments about causation. This can extend the litigation timetable considerably compared with more straightforward claims, which in turn affects the overall costs profile of the case.

Court and procedural costs. As with other forms of civil litigation, clinical negligence claims can involve court fees, disbursements and other procedural expenses as the case progresses.

Adverse costs exposure. Under the general rules of English and Welsh civil litigation, an unsuccessful party can, in certain circumstances, be ordered to contribute towards the winning party's legal costs. While specific costs protections exist in some categories of litigation, the potential for adverse costs exposure remains a relevant consideration in clinical negligence claims, and the rules that apply can depend on how a case is funded and how it proceeds.

Because of these combined factors, clinical negligence litigation costs can accumulate in ways that are difficult to predict with certainty at the outset of a case. This uncertainty is a key reason why ATE insurance for clinical negligence claims is something many solicitors raise with clients as part of early case planning.

When Is ATE Insurance for Clinical Negligence Claims Worth Considering?

There is no single answer that applies to every case, but certain circumstances commonly prompt solicitors and claimants to consider ATE insurance more closely.

Cases with meaningful cost exposure. Where a claim is likely to require substantial expert evidence, run for an extended period, or involve multiple procedural stages, the potential financial exposure associated with the litigation may be greater, making costs protection a more relevant consideration.

Complex or contested clinical disputes. Cases involving disputed causation, multiple defendants, or conflicting expert opinion can carry a higher degree of litigation uncertainty. In these situations, some claimants and legal teams place greater weight on having a costs risk management mechanism in place.

Claims with uncertain outcomes. All litigation carries some degree of outcome uncertainty. Where a case is genuinely finely balanced on its merits, the potential consequences of an unsuccessful outcome become a more prominent part of the decision-making process.

Particular funding arrangements. Where a claim is funded under a Conditional Fee Agreement, sometimes referred to as a "no win, no fee" arrangement, ATE insurance is often considered alongside the CFA as part of the overall funding structure, though whether it is arranged, and on what terms, depends on the case and the insurer's assessment.

A desire to manage financial risk proactively. Some claimants, and their solicitors, prefer to put a costs risk management structure in place early, rather than proceeding without one, particularly in cases where the potential financial consequences of the litigation are significant relative to the claimant's circumstances.

It is worth being clear that ATE insurance is not automatically necessary for every clinical negligence claim. Lower-value, more straightforward cases, or those with a strong and largely uncontested evidential basis, may present a different risk profile. Whether cover is appropriate, and on what terms it might be available, will always depend on the specific facts of the case and the insurer's underwriting assessment. 

What Can Clinical Negligence ATE Insurance Potentially Cover?

The scope of cover under any ATE policy depends on the specific wording of that policy. As a general description of how these products are typically structured, clinical negligence ATE insurance may potentially address:

  • Certain adverse costs exposure, where the policy provides such cover and the relevant conditions are met
  • Specified disbursements or expert evidence costs, where included within the policy terms
  • Other litigation-related costs expressly identified in the policy documentation

It is equally important to understand what ATE insurance may not cover, or may only cover subject to conditions:

  • Costs incurred outside the scope or period defined by the policy
  • Matters excluded under the specific policy wording
  • Costs arising from conduct that falls outside the policy's terms, such as failing to follow claims notification requirements
  • Elements that require prior insurer approval or ongoing underwriting review as the case develops

Because cover varies significantly between policies and providers, solicitors and claimants should not assume that any two ATE policies operate in the same way. The only reliable way to understand what a specific policy covers is to read the full policy documentation and raise any questions directly with the insurer or broker before the policy is put in place.

What Factors Can Affect the Cost of ATE Insurance?

Insurers typically assess a range of factors when underwriting an ATE policy for a clinical negligence claim. These commonly include:

  • Claim value. Higher-value claims may carry different risk considerations than lower-value disputes.
  • Case complexity. The number of issues in dispute, the number of defendants, and the technical nature of the clinical evidence involved.
  • Litigation stage. Whether the policy is being arranged at an early investigative stage or later in the claims process, once more is known about the merits.
  • Merits of the claim. The strength of the available evidence, including expert opinion on breach of duty and causation.
  • Estimated costs. The anticipated overall costs of pursuing the claim to its likely conclusion.
  • Potential costs exposure. The scale of adverse costs risk the policy may need to address.
  • Evidence and expert requirements. How much expert evidence is likely to be needed, and from how many disciplines.
  • Funding structure. How the claim is otherwise being funded, and how the ATE policy interacts with that arrangement.
  • Risk profile. The insurer's own assessment of the likelihood of a successful outcome, based on the information available.
  • Policy limits and excesses. The level of cover being sought and any excess the policyholder would be responsible for.
  • Underwriting requirements. The specific information and documentation the insurer needs to assess the case.

Premiums, policy limits and acceptance criteria vary between insurers and between individual cases. It would not be accurate or helpful to quote specific premium figures or approval rates, since these depend on the particular circumstances of each claim and the underwriting decisions of the relevant insurer. 

What Should Solicitors Check Before Arranging ATE Insurance?

Solicitors play a central role in identifying whether ATE insurance for clinical negligence claims is relevant to a case and, if so, in reviewing the terms of any policy under consideration. A practical checklist typically includes:

The precise scope of cover and which costs are included:

  • Any exclusions that could affect the specific claim
  • The policy limits and whether they are proportionate to the likely costs exposure
  • How the premium is structured, including whether it is staged or payable in full
  • When the premium becomes payable, and whether this is linked to the outcome of the claim
  • Cancellation provisions and what happens if circumstances change
  • Claims notification requirements and any obligations placed on the solicitor or client
  • The insurer's underwriting criteria and what information will be required
  • How the ATE policy interacts with the client's existing funding arrangement, such as a CFA
  • Whether the policy is suited to the specific characteristics of the case, including its likely duration and complexity

Given the technical nature of ATE policy wording, solicitors are generally advised to review the full terms and conditions carefully, rather than relying solely on a summary, before recommending a policy to a client. 

How Does ATE Insurance Differ From Other Legal Insurance?

ATE insurance is often discussed alongside other forms of legal expenses insurance, but these products are not interchangeable, and each is designed to address different risks.

Before the Event insurance, sometimes included within home or motor insurance policies, is typically arranged in advance of any dispute arising, and may provide access to legal costs cover for disputes that occur during the policy period. ATE insurance, by contrast, is arranged after a specific dispute has already been identified.

Other forms of legal expenses insurance may relate to different types of risk entirely, such as commercial disputes or employment matters, and are structured around the particular exposures relevant to those areas. ATE insurance for clinical negligence claims is specifically structured around the litigation risks associated with pursuing a claim against a healthcare provider, and its terms reflect that context.

Because these products address different risks, it is not appropriate to assume that one type of legal expenses cover can simply be substituted for another. Anyone considering their options should clarify exactly what type of policy is being discussed and what risks it is designed to address. 

What Questions Should You Ask Before Choosing ATE Insurance for Clinical Negligence?

Before arranging cover, claimants and solicitors typically benefit from asking the following questions directly to the insurer or broker:

  • What exactly does the policy cover, and what falls outside that cover?
  • What specific exclusions apply to this policy?
  • What costs could remain uninsured even with the policy in place?
  • How is the premium calculated for this particular case?
  • When does the premium become payable, and under what circumstances?
  • Does the policy cover the specific stage the claim has reached, or only future stages?
  • What happens if the nature or value of the claim changes as it progresses?
  • What happens to the policy if the claim is ultimately unsuccessful?
  • Are there policy limits, and are they sufficient for the likely costs exposure in this case?
  • Is there an excess, and if so, how much?
  • What information does the insurer require to underwrite the policy, and how up to date does it need to be?

Working through these questions systematically helps ensure that any decision to proceed with a policy is based on a clear understanding of its actual scope, rather than a general assumption about what ATE insurance typically provides.

Conclusion

Clinical negligence claims can involve meaningful financial risk, driven by the cost of expert evidence, the complexity of establishing breach of duty and causation, and the potential for adverse costs exposure depending on how a case proceeds. For these reasons, ATE insurance for clinical negligence claims is a consideration that many solicitors raise as part of early case planning, particularly in more complex or higher-value disputes.

ATE insurance is not automatically necessary for every clinical negligence claim, and its suitability depends on the individual circumstances of the case, the funding arrangement already in place, the specific policy wording on offer, and the underwriting criteria applied by the relevant insurer. What one policy covers may differ significantly from another, which is why careful review of the full terms is essential before any decision is made.

This article provides general information only and does not constitute legal, financial or insurance advice. Anyone considering ATE insurance for a clinical negligence claim should review the specific policy documentation carefully and seek appropriate professional guidance based on their own circumstances.

For solicitors and firms looking to understand more about specialist insurance products relevant to legal sector risk, Legal Ex Plus offers professional insurance expertise across a range of areas. You can find out more about their approach to specialist legal insurance cover via their cyber insurance page, or get in touch directly to discuss your firm's specific requirements.

The information provided is for general informational purposes only and does not constitute advice. While we strive to ensure the information is accurate and up-to-date, we make no representations or warranties of any kind, express or implied, regarding the accuracy, adequacy, validity, or completeness of any information on this site.