London Daily

Focus on the big picture.
Wednesday, Sep 09, 2026

Former London bankers convicted after Germany's 'greatest tax robbery'

Former London bankers convicted after Germany's 'greatest tax robbery'

First case of its kind sheds light on complex fraud known as cum-ex trading
Two former London bankers were handed suspended jail terms and one a €14m fine for tax fraud in a landmark trial that is likely to unleash dozens of similar cases across Germany.

The ruling is the first criminal conviction for what the judge, Roland Zickler, called “a collective case of thievery from state coffers”.

Martin Shields and Nicholas Diable managed to avoid jail by closely cooperating with German prosecutors and shedding light on a complex fraud scheme that siphoned €400m out of German state coffers.

Known as “cum-ex”, the scheme involved trading shares at high speed on or just before the dividend record date – the day the company checks its records to identify shareholders – and then claiming two or more refunds for capital gains tax which had in fact only been paid to the state once.

On Wednesday the judge stated that the trades were illegal rather than merely exploiting loopholes in the law.

“Do we all want to live in a world where everyone is ripping each other off?” Zickler said, addressing the defendants at the regional court in Bonn.

Cum-ex trade flourished on an “industrial scale” in the years after the financial crash, as banks across Europe were bailed out by the state. Shields started his career in investment banking as a junior trader for Merrill Lynch, before moving to the London branch of Germany’s fourth-largest bank, HypoVereinsbank, where he met Diable.

The chief prosecutor, Anne Brorhilker, said a harsher sentence would have “covered up the fact that the greatest tax robbery in German history was not conducted by two individuals but hundreds of people”.

The Bonn court also seized €176m from MM Warburg, a Hamburg-based private bank that had links to most of the transactions under review in the trial. A spokesman for the bank said it would appeal the decision.

State prosecutors across Germany are currently investigating at least 600 individuals, including bankers, traders, advisers and lawyers, for having practised similar schemes. At least 130 banks are under suspicion of having taken part in cum-ex trades.

“There will be further trials,” said Zickler.

Estimates of the cum-ex scandal’s total financial damage to the German state range from €5bn to €55bn.

In his closing statement, the former investment banker Shields said he had set off on a journey that “began in a bubble and remained in a bubble”.

“Many things were taken for granted and – unfortunately – were not questioned sufficiently,” said the 42-year-old, whom the Bonn court ordered to pay €14m to compensate for the personal profits he had made. “Whatever was taken for granted back then, I now see turned out to have been the wrong path.”

With more and more parts of Europe under lockdown to curb the spread of the Covid-19 virus, the verdict in the 44-day trial was moved forward to ensure the two UK-based bankers could still attend the court in person.
Newsletter

Related Articles

0:00
0:00
Close
Merz Rebukes AfD Expansion in Saxony-Anhalt
Compass Urges £10 Million Wealth Tax and Public Ownership Ahead of UK Autumn Budget
UK Government’s Devolution Plans Face House of Lords Scrutiny
Maldives Seeks New Chagos Sovereignty Talks With UK Prime Minister Andy Burnham
UK Airports Face Continuing Disruption After National Air Traffic Control Failure
UK Bans Imports From Israeli Settlements and Expands Sanctions on Iran
British Chambers of Commerce Forecasts UK Growth of 1% as Investment Remains Weak
UK Suspends Local Government Reorganisation Decisions and Cancels Planned Shadow Authority Polls
UK Parliament Opens Inquiry Into Gaps in Climate Change Preparedness
Andy Burnham and Xi Jinping Hold Talks on Trade, Security and British Consular Cases
UK Joins France, Canada and Other Nations in Measures Against Israeli West Bank Settlements
UK Announces New Sanctions Targeting Iranian Nuclear and Military Networks
British Chambers of Commerce Calls for Business Rate Reform and Productivity Support
UK Farmers Warn Dry Summer Could Reduce Crop Yields and Push Up Food Prices
UK Rail Networks Hit by Widespread Delays After Major Signalling Failures
Matt Clifford Resigns as ARIA Chair After Conflict-of-Interest Scrutiny
UK and France Say Joint Border Operations Have Prevented More Than 48,000 Irregular Channel Crossings
UK Core Inflation Remains Above Expectations as Utility and Commodity Costs Stay Elevated
Jaguar Land Rover Considers Up to 4,000 UK Job Cuts Amid Automotive Industry Pressure
UK Government Pauses Local Authority Reorganisation for Legal Review
UK Public Borrowing Reaches £1.8 Billion in July, Adding Pressure Before Autumn Budget
Chancellor John Healey Puts Regional Devolution and Fiscal Discipline at Heart of UK Growth Plan
Counter-Terrorism Police Lead Salford Investigation After Two Teenagers Charged
UK Rejects Financial Reparations for Transatlantic Slavery
UK and Egypt Step Up Diplomacy Over Escalating West Bank Tensions
UK Pauses Council Reorganisation Across Four English Counties
Jaguar Land Rover Plans 4,000 Job Cuts in Major UK Restructuring
UK Unveils Planning and Regulatory Overhaul to Speed Infrastructure and Economic Growth
University of Bristol Opens £500 Million Innovation Campus
Families Give Evidence to Independent Review of Sussex Maternity Failures
Sweden Confirms Deportation of 458 British Citizens Over Post-Brexit Residency Rules
UK Launches £3 Million Challenge for Long-Duration Energy Storage
Reform UK Proposes £100 Billion in Spending Cuts and Brownfield Deregulation
Andy Burnham Warns Macron That EU Procurement Rules Could Hurt British Steel
Andy Burnham Faces Major Decision on Future North Sea Oil and Gas Drilling
SEND Support in England Projected to Reach One in 10 Pupils
England’s Housing Courts Struggle With Surge in No-Fault Eviction Cases
Violent Clashes Erupt in Portsmouth During Protest Against Asylum Processing
Three-Quarters of NHS Emergency Staff Report Regular Violence or Aggression
UK Considers Converting Female Prison Space for Male Inmates as Overcrowding Worsens
UK House Prices Record First Annual Decline in Nearly Three Years
UK Government Reassesses Policy Toward Israel Amid Calls for Diplomatic Shift
Reform UK Faces Police Scrutiny Over Alleged Foreign Donations Scheme
University of Bristol Opens £500 Million Temple Quarter Enterprise Campus
Online Bookmakers Accused of Privacy Breaches Through Cookie Consent Practices
Health Campaigners Urge UK Government to Abandon U.S. Pharmaceutical Agreement
Three-Quarters of UK A&E Staff Report Regular Violence or Aggression
Far-Right Demonstrations Target Portsmouth as Small-Boat Crossings Fuel Tensions
UK Records Hottest Summer on Record After Severe Heatwaves
UK Travellers Face Renewed EU Border Delays as Temporary Flexibility Ends
×