By Dr Angelo Chirulli, ACA BFP ADIT IFA CPA (ITA)
Mail: angelo@vectigalistax.co.uk
The retail group WH Smith has been rocked by a spectacular collapse in its share price after uncovering a significant accounting error.
On 21 August 2025, the company announced that profits at its North American division had been overstated by about £30 million, triggering an immediate profit warning.
The error was traced to the accelerated recognition of supplier income – payments and rebates linked to hitting sales targets and marketing activities that should have been recognised in a future period. Investors reacted sharply; the market capitalisation fell by almost £600 million and the share price tumbled about 40 %[1].
WH Smith now expects North American profits of around £25 million compared with earlier expectations of £55 million, and has instructed Deloitte to conduct an independent review of its accounting practices[2].
Understanding the error
According to WH Smith’s announcement, the error arose because certain supplier rebates and promotional payments were recognised too early[2]. Under UK and international accounting standards, revenue must be recorded when it is earned, not merely when cash is received or contractual targets appear likely to be met.
In the retail sector, supplier agreements often include complex mechanisms such as volume rebates, contributions towards marketing and promotional activities, and early payment discounts.
If these incentives are logged in the wrong accounting period, profits can be materially misstated.
In WH Smith’s case, the misclassification inflated current‑year earnings and misled the market about the profitability of its rapidly growing North American travel business.
Impact on the wider group
WH Smith’s profit warning lowered group pre‑tax profit expectations to around £110 million, below market forecasts of about £140 million[3]. The episode is a stark reminder of how a seemingly isolated error can reverberate across a group with multiple subsidiaries.
In multinational businesses, the risk of misreporting increases when operations are spread across different jurisdictions, each with its own accounting conventions and tax regulations. Weaknesses in internal controls and communication between finance teams can lead to accelerated revenue recognition, incomplete reconciliations and inconsistent treatment of supplier income.
Investors and analysts have drawn parallels with the 2014 Tesco accounting scandal, where supplier‑related income was recorded too early, resulting in a £326 million overstatement of profits and years of litigation[4]. For WH Smith, this incident comes at a time when it is restructuring its business, having sold its high‑street division to a private equity firm.
The company had hoped to focus on its profitable travel outlets in airports, hospitals and service stations; the error has undermined that narrative and attracted regulatory scrutiny.
Lessons for businesses
- Robust revenue recognition policies – Businesses must have clear policies for recognising supplier rebates, marketing contributions and volume bonuses. These policies should align with IFRS 15/IAS 18 (or relevant UK GAAP) and be consistently applied across divisions. Recognising income too early not only misstates profits but can lead to tax underpayments if revenue is brought forward incorrectly.
- Effective internal controls – Multi‑entity groups need strong controls over journal entries, reconciliations and period‑end adjustments. Regular audits and review procedures can catch anomalies before they become material. In WH Smith’s case, the error was discovered only during the preparation of year‑end results[2]; continuous monitoring might have spotted the issue sooner.
- Communication between finance and tax functions – Accounting errors often have tax implications. Accelerated revenue recognition may result in corporation tax being paid in the wrong period, triggering penalties and interest. Tax advisers should work closely with accountants to ensure that any restatements are properly reflected in tax computations and that claims for overpaid tax are made where appropriate.
- Investor relations and transparency – When an error is discovered, prompt and transparent communication is essential. WH Smith has commissioned an independent review by Deloitte and has updated its profit guidance[3]. This transparency helps rebuild investor confidence and demonstrates a commitment to robust governance.
How Vectigalis Tax can help
Accounting misstatements can happen even in large, listed companies. Smaller businesses and owner‑managed groups are equally vulnerable if they rely on informal processes or fail to keep up with changing accounting standards.
Vectigalis Tax offers tax advisory services to help clients design and implement effective accounting controls, revenue recognition policies and tax compliance procedures.
· Tax impact analysis – We analyse the tax consequences of accounting adjustments, prepare amended computations and liaise with HMRC where necessary.
· Cross‑border expertise – For businesses operating internationally, we navigate different jurisdictions’ accounting and tax rules, ensuring group‑wide consistency.
If you are concerned about the robustness of your accounting processes or the potential tax implications of revenue recognition errors, contact us at angelo@vectigalistax.co.uk or visit www.vectigalistax.co.uk.
[1] [2] [3] [4] Almost £600m wiped off WH Smith value after £30m accounting error | WH Smith | The Guardian