Commercial ATE Insurance UK: Costs & Cover Explained
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Commercial litigation can land on a business without warning, and the costs can spiral quickly once proceedings start. After the Event (ATE) insurance is one of the tools companies use to take some of the financial sting out of going to court, particularly when there is a real risk of being ordered to pay the other side's legal bill.
This guide walks through what commercial ATE insurance actually covers, how premiums tend to be structured, and the situations where it tends to be most useful. It is written for business owners, finance directors and in-house teams who are weighing up whether to pursue or defend a claim, and who want a clearer picture of how ATE fits alongside other funding options such as conditional fee agreements and third-party litigation funding.
Overview
Commercial ATE insurance is a policy taken out after a legal dispute has already arisen, hence the name 'after the event'. It is designed to cover some of the financial risks a business faces when it becomes involved in litigation or arbitration, most commonly the risk of being ordered to pay the opponent's legal costs if the claim does not succeed.
Depending on how the policy is written, it may also cover own-side disbursements such as court fees, expert reports and counsel's fees. It is typically used in higher-value commercial disputes including contract claims, shareholder disagreements, professional negligence actions, intellectual property disputes and insolvency-related litigation.
ATE is not the same as a legal expenses policy bought before a dispute arises, and it does not usually cover fines, penalties or liabilities under the judgment itself. Cover is bespoke to the case, and insurers will assess the merits before agreeing to underwrite the risk.
Key steps
- Work out what financial exposure you actually face. Before approaching an insurer, map out the likely range of your own legal costs, the disbursements you will need to pay as the case runs, and a realistic estimate of the other side's recoverable costs if you lose. This gives you a target level of cover and helps the broker present the risk sensibly.
- Speak to your solicitor about the merits. ATE insurers will only underwrite cases with reasonable prospects of success, and most want a written view from the legal team handling the matter. A clear, honest merits assessment is the single biggest factor in getting cover offered and in keeping the premium at a workable level.
- Approach a specialist broker or insurer. The commercial ATE market is relatively concentrated, and it pays to use a broker who places this kind of risk regularly. They can approach multiple underwriters, negotiate terms, and help you compare premium structures so you are not locked into the first quote you receive.
- Review the policy wording carefully. Pay close attention to what is included, what is excluded, the aggregate limit of indemnity, how the premium is triggered, and the circumstances in which the insurer can withdraw cover. Small drafting differences can make a significant difference if the case takes an unexpected turn.
- Keep your insurer informed as the case develops. Most policies require you to notify the underwriter of material developments, settlement offers and changes to the merits view. Staying on top of these obligations protects your cover and avoids arguments about whether the policy still responds if you need to claim on it.
Common questions
Q Who typically buys commercial ATE insurance?
It is usually bought by claimants in commercial disputes, although defendants can sometimes obtain cover too. Typical buyers include SMEs pursuing contract or professional negligence claims, insolvency practitioners running claims on behalf of a company's creditors, and larger businesses wanting to ring-fence the downside risk of high-value litigation. The common thread is a case where losing would create a significant adverse costs liability.
Q What does an ATE policy usually cover?
Most commercial ATE policies focus on adverse costs, meaning the opponent's legal costs that a losing party may be ordered to pay. Many policies also extend to own-side disbursements such as court fees, expert witness fees and counsel's fees. Solicitor's own profit costs are sometimes covered, sometimes not, depending on whether there is a conditional fee arrangement alongside the policy.
Q How is the premium calculated?
Premiums vary widely and depend on the size of the cover, the strength of the case, the stage proceedings have reached and the type of dispute. They are often expressed as a percentage of the indemnity limit and may be staged, with higher rates applying as the case progresses towards trial. In many policies the premium is deferred and contingent, meaning it only becomes payable if the case succeeds.
Q Can the premium be recovered from the losing party?
For most commercial cases started after April 2013, ATE premiums are no longer recoverable from the losing opponent under the general costs rules in England and Wales. There are limited exceptions, most notably certain insolvency proceedings and some publication and privacy claims. Your solicitor can tell you whether your case falls within any surviving recoverability regime.
Q How does ATE fit with a conditional fee agreement or litigation funding?
ATE is often paired with a conditional fee agreement, where the solicitor takes some or all of their fee risk, while the insurer covers adverse costs and disbursements. It can also sit alongside third-party litigation funding, where an external funder pays running costs in exchange for a share of the recovery. Insurers, funders and solicitors will usually coordinate the package at the outset.
Q When should we apply for cover?
The earlier the better. Approaching insurers before proceedings are issued gives you more time to shape the policy around the case and avoids the uplifts that can apply once a matter is close to trial. That said, ATE can sometimes be placed mid-case, provided the merits remain strong and the insurer is given a full picture of what has happened so far.
Q Can an insurer cancel the policy partway through a case?
Most ATE policies allow the insurer to withdraw cover in defined situations, typically where the merits fall below an agreed threshold or where the insured fails to comply with policy conditions. Cancellation is not usually arbitrary, but it is a real risk if the case weakens significantly. Keeping the insurer updated and following the policy terms carefully reduces the chance of this happening.
Sources
This guide is based on primary UK law and official guidance.
- Guidance · HMCTSCivil Procedure Rules – Costs (Part 44)justice.gov.uk
- LegislationLegal Aid, Sentencing and Punishment of Offenders Act 2012legislation.gov.uk
- Official SourceFinancial Conduct Authority – Insurancefca.org.uk
Legal disclaimer
This article is for general information only. It is a tool to help you find your way — not legal advice, and not a substitute for speaking to a qualified adviser about your situation.