8 | Breach is just the beginning: the significance of counterfactuals, causation and contributory fault in establishing and quantifying liability
By Charlotte Henschen and Sean Cannon
When faced with a claim for negligence, the first question asked will be: what (if anything) went wrong?
However, recent decisions in The Wine Enterprise Investment Scheme Limited (in Liquidation) v Crowe UK LLP1 (WEIS) and Ickenham Travel Group Limited v Tiffin Green Limited2 demonstrate that this is far from the end of the enquiry.
Both cases involved serious undetected issues with the audited entities and accepted breaches of the relevant auditing standards. Yet in WEIS, the damages awarded against the auditor were a fraction of what they could have been, and in Ickenham, no damages were payable at all.
WEIS: Auditors culpable, or just a case of sour grapes?
The Wine Enterprise Investment Scheme Limited (WEIS) was marketed to investors as a tax-efficient wine investment fund. In fact, it was a Ponzi scheme operated by its directors. Crowe was WEIS' auditor for the financial years 31 December 2012 to 31 December 2018. Following its inevitable liquidation, WEIS (acting by its liquidators) sued Crowe seeking recovery of £4.2m subscribed by the shareholders.
Crowe accepted that it breached its duties in each audit year. However, Crowe denied that these breaches caused the losses claimed, given that the only individuals in a position to take any action on behalf of WEIS during the period Crowe acted as auditor were the two directors perpetrating the fraud.
The Court rejected WEIS' argument that Crowe had a duty to report certain findings directly to the shareholders. There was no English law authority, statute, or regulatory standard justifying the proposition that auditors owed a duty to report fraud directly to shareholders, even where the auditors knew or suspected that management or the directors might be implicated in or condoning that fraud.
The Court also rejected the company's argument that the shareholders would have been informed of the fraud by Crowe's resignation statement. Even if Crowe should have resigned, there were various legal constraints on an auditor's ability to publicise any fraud it may have discovered at the company via its resignation statement, including the risk of criminal liability under Proceeds of Crime Act 2002 if it was found to have prejudiced an investigation.
Whilst WEIS' case on causation did not fail entirely, the Court held that the relevant framework for determining the extent of Crowe's liability required an assessment of a range of factors, including the shareholders' evidence as to what they would have learned, how they would have reacted, and what steps they would have considered taking in the event that Crowe had declined to submit auditor's reports.
The Court held that the highest that the company could put their case was on the basis of the shareholders taking action in June 2018, in relation to the year-end 2016 accounts. The Court found that, at that stage, wine totalling approximately £2.85m could have been preserved for recovery in the event of corrective action by the shareholders.
However, steep deductions were then applied to this total recoverable amount:
- A 90% deduction was applied to reflect the Judge's finding that there was only a 10% chance that shareholders would have taken steps in June 2018 to preserve the assets of WEIS, reducing the maximum value of the claim to £285,000;
- A 2.5% reduction was then applied to reflect the costs of sale of the wine that action from the shareholders may have preserved, reducing the maximum value to £277,875.90;
- This figure was reduced by £73,944 to give credit for the benefits received by WEIS while being able to continue its business – applying AssetCo v Grant Thornton3 and Afan Valley Ltd & Ords v Lupton Fawcett LLP4; and
- A further 50% reduction was applied to reflect the contributory fault of WEIS, through the attribution of its directors' fraudulent conduct and the absence of any corporate governance or any other internal controls that were separate from the dominance of its fraudulent directors.
The result
Crowe were held liable for £101,965.95, plus approximately £30,000 in interest. This recovery, of approximately 1.6% of the total damages claimed, was expressly described in a consequentials judgment as a "Pyrrhic victory" such that WEIS could not be regarded as the successful party for costs purposes.
WEIS was accordingly ordered to pay: (i) 85% of Crowe's costs of the proceedings up to the date of the expiry of Crowe's Part 36 Offer (of £3.175m plus costs, that was made approximately 8 months before the beginning of trial); and (ii) 100% of its costs on the standard basis from the date on which the period for acceptance of Crowe's Part 36 offer expired, and interest on those costs.
WEIS' application for permission to appeal various points of the substantive judgment, including the 50% reduction for contributory negligence, was also refused by the High Court.

Ickenham's Irregularities
Increased litigation risks
Tiffin Green audited Ickenham Travel Group (Ickenham), a travel agency, for the financial years ending 30 September 2014 – 30 September 2017. Ickenham had two divisions: a business travel agency called Business Travel Direct and a consumer travel agency called LetsGo2. In 2019, Ickenham discovered serious irregularities in its accounting systems, which meant that the trade creditors of the LetsGo2 were overstated by £4.5m.
Because of that overstatement, the Civil Aviation Authority required Ickenham to raise additional funds to maintain its ATOL licence. In order to raise those funds, Ickenham sold Business Travel Direct (which was not affected by the undetected irregularities), and argued in this case that it was forced to sell at an undervalue (allegedly at £6m less than its true value).
Ickenham argued that if the overstatement had been discovered in 2014, steps would have been taken to address the issue then, preventing further escalation of the overstatement, and it would therefore not have been required to sell Business Travel Direct, let alone at a £6m loss to what Ickenham said was its true value.
Tiffin Green accepted that it had breached its contractual and tortious duties of care in failing to detect the irregularities when conducting the audits. However, Tiffin Green disputed that Ickenham had suffered, or that it was responsible for, the losses claimed by Ickenham.
The Court held that any prospect of selling the Business Travel Direct for a higher value than ultimately realised had disappeared long before the irregularities were revealed (and was certainly below 10%). Business Travel Direct had therefore been sold for its market value, meaning there had been no loss.
The Court further held that even if there had been a sale at an undervalue, Ickenham had not proved that Tiffin Green had caused that loss. The understatement in the accounts predated Tiffin Green's appointment: albeit it stood only at £2.5m in 2014. Ickenham nevertheless claimed that it lost the opportunity to remedy the understatement without selling Business Travel Direct at an undervalue. The Court held that Ickenham did not show that they had any options for internal or external funding in 2014 that were not available in 2019. Ickenham therefore failed to prove there was any difference between: (i) the position it would have been in had Ickenham detected the understatement in 2014; and (ii) the position it was in when the understatement was discovered.
The Court nevertheless held that a loss of value of the sale of the Business Travel Direct was a type of loss for which Tiffin Green could be liable at law on application of the relevant test in Manchester Building Society v Grant Thornton UK LLP5. In circumstances where Tiffin Green had held itself out as having particular expertise with travel businesses and its letter of engagement expressly stated that the purposes for which it was auditing Ickenham included maintaining relevant accreditations, the reasonably foreseeable consequences of that impact might include steps Ickenham would be required to take to maintain its Civil Aviation Authority approval.
Takeaways
WEIS and Ickenham demonstrate the potentially transformative impact issues of causation, loss and contributory fault can have on the commercial outcome of a professional negligence claim. Technical victories on breach can quickly become pyrrhic – particularly where a claimant's counterfactual depends on actions by a third party, or a cumulative waterfall of reductions as seen in WEIS applies.
The hypothetical sting in the tail in Ickenham, that the losses claimed could have fallen within the scope of the auditor's duty, serves as a salutary reminder that the terms of the engagement letter remain of fundamental importance to delimit the scope of an auditor's duty and care should be taken over the incorporation of bespoke terms.

1 [2026] EWHC 692 (Ch) https://www.bailii.org/cgi-bin/format.cgi?doc=/ew/cases/EWHC/Ch/2026/692.html&query=(wine)+AND+(enterprise)
2 [2024] EWHC 27 (Comm)
3 [2021] PNLR 1
4 [2026] EWCA Civ 2
5 [2022] AC 788

