For many UK savers frustrated by low interest rates, the idea of opening a foreign bank account can seem appealing. Perhaps a bank overseas is offering rates that far exceed anything available in the UK. Or maybe it feels safer to move money out of the country given rising public debt and inflation concerns at home. But while holding money in a foreign bank account might sound smart on paper, in reality, it can expose you to a range of risks—some of which could end up costing far more than any extra interest earned.
In this article, we explore the often-overlooked dangers of saving abroad, including currency risks, political instability, double taxation, capital controls, and tax liabilities back in the UK.
Why People Are Drawn to Foreign Bank Accounts
There are several reasons why people consider opening a bank account outside the UK:
- Higher Interest Rates: Some countries—particularly those with struggling economies—offer savings rates far higher than the UK base rate. In an era where many UK high-street banks pay close to 0% on easy-access savings, an advertised 10% rate from a foreign bank might look too good to ignore.
- Currency Diversification: Others view foreign accounts as a hedge against the pound sterling. They believe spreading money across currencies could protect them from UK-specific risks like a weak pound or Brexit-induced instability.
- Perceived Safety: Some investors simply want to move funds away from the UK banking system, fearing high government debt levels, tax increases, or financial repression in the future.
But these motivations often ignore the serious and complex risks that come with parking money abroad.
The Danger of Currency Risk
When you hold money in a foreign currency, you are inherently making a currency bet—even if you don’t realise it. If that foreign currency falls in value against the pound, any interest you’ve earned can be wiped out—or worse, you could end up with less than you started with.
Consider this: If you place £10,000 into a savings account in a country where the local currency depreciates 20% against the pound over the course of a year, you would need more than 25% in interest just to break even in sterling terms.
Currencies in countries with high interest rates are often highly volatile. What seems like a “bonus” rate can actually be a red flag that major inflation or political instability is on the horizon.
Why the Interest Rate Might Be Too Good to Be True
High interest rates are rarely offered without reason. Typically, they exist to attract foreign capital in economies suffering from inflation, weak currencies, or capital flight. Turkey is a prime example of how misleading a headline interest rate can be.
The Case of Turkey
In recent years, Turkey has offered extraordinarily high interest rates—sometimes above 30%. But that hasn’t been enough to offset the rampant inflation and collapse of the Turkish lira. In 2022, Turkey’s inflation rate soared above 80%, eroding the real value of deposits even as nominal interest rates climbed. Meanwhile, the lira continued to plummet, falling by over 50% against the pound in just two years.
UK savers tempted by high Turkish deposit rates would have found their capital severely devalued, despite the eye-catching returns on offer.
The Risk of Governments Taking a Cut of Your Savings
Another underappreciated danger is the risk of government intervention. In countries facing financial crises, governments have been known to impose direct losses on bank depositors.
The Cyprus Example
In 2013, Cyprus experienced a banking crisis so severe that authorities imposed a “bail-in” on savers. People with over €100,000 in Cypriot bank accounts had a portion of their savings confiscated to fund the bailout of the banking system. While EU-backed deposit guarantees protected smaller balances, many wealthier savers lost significant sums overnight.
This wasn’t some backwater jurisdiction—it was a member of the European Union. It serves as a stark warning: if your money is in a foreign banking system and things go wrong, you may not be protected.
You’re Still Liable for UK Tax
One of the biggest misconceptions around foreign bank accounts is that holding money abroad shields you from UK tax. That’s not the case. If you are a UK resident for tax purposes, you are legally obliged to declare all income earned worldwide—including interest from foreign savings accounts.
The UK tax authorities are increasingly effective at tracking down undeclared overseas income, especially now that more than 100 countries share tax information under the Common Reporting Standard (CRS).
Even worse, if the country where your savings are held doesn’t have a double taxation agreement (DTA) with the UK, you might end up being taxed twice: once by the foreign country and again by HMRC.
This can make the after-tax return on foreign savings far worse than anything you could achieve domestically.
Some Countries Don’t Let You Take Your Money Out
In more extreme cases, some governments restrict the movement of money out of the country altogether. These capital controls are typically imposed during financial crises or when a country wants to defend its currency.
The China Example
China is one of the most prominent examples. While Chinese residents can freely open domestic accounts, moving money out of China is heavily restricted. Foreign investors often find themselves unable to repatriate funds without jumping through multiple layers of bureaucracy and approval. These restrictions apply not just to speculative capital but even to legitimate personal savings.
So even if you manage to open a Chinese bank account and earn interest, don’t expect to be able to easily transfer that money back to the UK.
When a Foreign Bank Account Might Make Sense
There are legitimate reasons for maintaining a foreign bank account—but they are usually based on practical needs, not chasing returns.
If you own a property overseas and have recurring expenses like maintenance, property taxes, or utilities in local currency, it can make sense to keep a small local account. This avoids the hassle and cost of frequent currency conversion and protects you against unfavourable exchange rate swings when paying bills.
In these cases, the goal isn’t to seek a high return—but to reduce friction when managing overseas commitments.
However, even in this context, it’s usually wise to only keep enough in the account to meet short-term needs. Keeping large sums overseas exposes you to all the risks mentioned earlier.
The Illusion of Opportunity
Foreign bank accounts might seem like an attractive opportunity to earn more interest or diversify your savings. But in reality, they often come with hidden dangers—from currency losses and political instability to tax headaches and capital restrictions.
Unless you have a clear reason to maintain overseas funds—such as living abroad, owning foreign property, or doing business internationally—it’s often safer, simpler, and more tax-efficient to keep your savings closer to home. The extra few percentage points of interest are rarely worth the risk of losing access to your money or seeing its value eroded overnight.
If you’re still tempted by foreign accounts, make sure you fully understand the risks—and speak with a qualified Financial Adviser who can help you evaluate your options in the context of your broader financial plan.
Risk warning:
Stock market linked investments and any income from them, can fall as well as rise and is not guaranteed. Any figures quoted are for illustrative purposes and should not be taken as a forecast or guarantee. Past performance should not be seen as an indication of future returns and clients may get back less than they have invested.
