An offshore investment account is an account for holding cash, funds or shares that is run from a jurisdiction outside your home country, often an international financial centre. For British expats in 2026/27 it may suit people who live abroad, move between countries or hold several currencies. Whether it suits you depends far more on where you are tax resident, now and later, than on the account itself.

What "offshore" actually means

"Offshore" is a location, not a tax status. An offshore account might be a custody or platform account with a firm in an international centre, a multi-currency bank account, or a wrapper set up under that jurisdiction's law. The assets inside can be ordinary funds, shares and bonds, much like those you could hold in the UK.

Holding assets offshore does not stop your country of residence from taxing them. A UK resident is generally taxed on worldwide income and gains, subject to specific reliefs such as the four-year foreign income and gains regime for qualifying new arrivals. A UAE resident currently pays no UAE personal income tax on investment returns, but that can change the moment you move to a country that taxes them.

Who it tends to suit

An offshore account may be worth considering if you:

  • live outside the UK and expect to keep moving, so want one arrangement that travels with you
  • earn or spend in more than one currency, such as dirhams, dollars, sterling or euros
  • find that a UK platform restricts what you can do as a non-resident (a provider's decision may reflect the regulatory requirements of the country where you live, and moving to another UK platform is not always available)
  • are no longer a long-term UK resident for inheritance tax and hold non-UK assets

It may be less suitable if you are likely to return to the UK soon, or plan to settle in a country with strict rules on foreign investment funds, such as Spain, Portugal or Australia. The reporting can be more involved and the tax treatment less favourable than a local alternative.

The tax trap when you come back to the UK

Many offshore accounts hold offshore funds. HMRC's guidance sets out two treatments for UK residents:

  • Reporting funds report their income to investors each year. You pay income tax on that reported income, and gains on disposal are generally taxed as capital gains, provided the fund had reporting status throughout your holding.
  • Non-reporting funds do not. Gains on disposal are generally taxed as "offshore income gains", meaning income tax rates rather than capital gains tax rates.

HMRC publishes a list of funds with reporting status, updated monthly. Checking holdings against it before you return may help you avoid an unexpected tax bill.

Protection and costs

UK deposit protection through the FSCS covers up to GBP 120,000 per person per authorised institution from 1 December 2025, but only for UK authorised firms. Offshore accounts sit under the protection rules of their own jurisdiction, which may be narrower or work differently. Read what applies before you deposit.

Costs vary widely. Some offshore arrangements are straightforward, while others carry several layers of platform, adviser and fund charges. Ask for every cost in writing, in both percentage and cash terms, before committing.

Illustrative example only, not a real client. James, 45, lives in Abu Dhabi and has USD 200,000 to invest. He plans to return to the UK in about eight years. If he holds offshore funds without UK reporting status and sells them after becoming UK resident again, the gain could be taxed as income at 20%, 40% or 45% depending on his other income (2026/27 rates for England, Wales and Northern Ireland), rather than at capital gains rates of 18% or 24%. This assumes no reliefs apply, such as the four-year foreign income and gains regime, which he would not qualify for after only eight years away. Funds with reporting status throughout his holding could produce a different result.

For a wider look at structuring savings abroad, see our guide to investing a lump sum as a British expat. If you are planning a move home, our guide to returning to the UK after living abroad covers the timing points.

Common mistakes

  • Thinking "offshore" means tax free wherever you live.
  • Not checking UK reporting status of funds before returning to the UK.
  • Assuming UK deposit protection applies to an offshore account.
  • Signing up without a full written breakdown of charges.

A regulated financial adviser can help. Get in touch for a free introduction.

Sources and further reading

Last reviewed: October 2026. Tax year: 2026/27. Jurisdictions covered: UK, UAE. Rates, legislation and guidance change, so recheck before relying on this. Rules can differ between England and Wales, Scotland and Northern Ireland; tax residence is fact-specific; treaty outcomes depend on residence, domicile or nationality provisions; examples are simplified and omit reliefs, costs, exchange rates and anti-avoidance rules. This is general information, not financial, tax or legal advice. Take advice in the relevant country before acting.