Can Britain's offshore tax havens hold on?

Growing political pressure has made life harder for the Crown Dependencies and Overseas Territories that operate as tax havens. Will they survive?

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What are tax havens?

Tax havens are usually small, well-governed offshore financial centres. They attract clients with low or zero taxes and keep information about clients and ownership secret - or, at minimum, tightly private.

Many are islands tied to Britain yet operating with separate tax systems, giving them access to British legal protections, political stability, and the City of London without giving up fiscal flexibility. Financial services can bring in far more money than local industries, so the incentive to specialize is enormous.

Which British territories are tax havens?

Offshore financial centres connected to the UK belong to one of two groups: the Crown Dependencies or the British Overseas Territories. Jersey, Guernsey and the Isle of Man make up the first group. They are not legally part of the UK and, for centuries, have retained varying levels of control over their own laws and taxes. That arrangement proved useful when international finance expanded during the 20th century: the islands had separate legal and tax systems while remaining closely tied to one of the world's largest financial centres.

Meanwhile, the UK has been pressing for greater transparency over the people who ultimately own assets. The Sanctions and Anti-Money Laundering Act 2018 advanced that effort, though the work remains unfinished and disputes continue. The Cayman Islands agreed in 2025 to permit access based on "legitimate interest," but obtaining information can still take time and cost substantial sums because of appeals and delays that critics say are meant to deter requests.

Will Britain's tax havens survive?

These trends are unlikely to bring down the UK's offshore tax havens. Their role is changing, though: instead of relying on bank secrecy and zero or low tax, the centres increasingly provide tax-neutral legal and financial structures for global capital. The shift is already visible. In 2025, the Overseas Territories froze more than £11 billion in assets under sanctions regimes, according to Foreign Office figures. They are moving steadily into the international system for enforcing anti-money-laundering rules and sanctions.

Relations between the UK and its dependencies and territories have not always been easy. Jersey has occasionally even threatened independence when London becomes too heavy-handed. Still, James Price writes in City AM that these territories are valuable assets, not possessions to take for granted. The Overseas Territories generate 4.4% of the UK's services exports - more than Spain, Italy, or any Asian country other than China. They also reinforce the City's global position by directing "enormous sums of money into the country and fuelling finance with access to worldwide asset pools. In turn, this stimulates investment, drives productivity and more than offsets lost tax revenues."

How is Jersey as an offshore financial centre?

Jersey remains one of the world's leading offshore centres, according to Simon Nixon in Bloomberg. The position is becoming harder to defend, though. Dubai, Singapore and the Cayman Islands have intensified the competition, while financial services still provide 40% of the island's government revenues and 44% of its gross value added.

Brexit has hurt Jersey. EU rules require funds sold to European investors to be administered within Europe, and business has shifted from Jersey to Dublin and Luxembourg. London, which supplied Jersey with much of its deal flow, has also lost business to the Middle East and Asia.

The UK's post-financial-crisis ringfencing rules have also cut Jersey's banking sector down to size: surplus deposits can no longer be parked profitably with UK banks, and the number of banks on the island has fallen by a third since 2017. A Jersey government-commissioned review captured the change earlier this year, saying that "the privilege has shifted." For decades, Jersey assumed access to the island was itself a privilege. Now it has to compete for business like everyone else.