Offshore Investment Platforms and Accounts for Expats: What They Are, How They Work, and What to Watch Out For

One of the most consistent problems we see with newly arrived expat clients is the same one that catches people at every stage of international life: they are trying to invest using tools that were built for someone living in a different country.

An ISA you opened in the UK stops accepting contributions the moment you become non-UK resident. A 401(k) from a US employer becomes extraordinarily complicated once you are a non-US person living in a non-US tax environment. A brokerage account with a major retail platform may simply close your account when they discover you have moved abroad.

The offshore investment account — used correctly — is the solution to this problem. But the term is used loosely, and the market is full of products wearing the same label with very different underlying characteristics. This article explains what you are actually buying, how these structures work, and where the pitfalls are.

WHAT IS AN OFFSHORE INVESTMENT PLATFORM OR ACCOUNT?

The term “offshore investment account” covers several different structures, and it is important to distinguish between them because they have meaningfully different characteristics in terms of tax treatment, flexibility, cost, and regulatory protection.

The structures you will most commonly encounter are:

Offshore Portfolio Bonds (also called International Investment Bonds) — These are insurance-based wrappers issued by life insurance companies in jurisdictions like the Isle of Man, Ireland, or Luxembourg. They hold a portfolio of underlying investments and provide a tax-deferral mechanism that can be valuable in certain jurisdictions. Gains roll up without being taxed at source, and tax is only assessed when withdrawals are made — under the rules of your country of residence at that time.

Discretionary Managed Accounts — These are direct investment accounts, held in your name with a regulated custodian, typically managed on a discretionary basis by an investment manager. Less complex structurally than a portfolio bond, with direct ownership of the underlying assets.

Platform-Based Advisory Accounts — Similar to the above but managed on an advisory rather than discretionary basis, meaning the adviser makes recommendations and you approve them. More control, more involvement required from you.

International SIPPs — UK-domiciled Self-Invested Personal Pensions with providers that accept non-UK residents. Not strictly “offshore” but functionally important for expats with UK pension assets.

HOW OFFSHORE PORTFOLIO BONDS ACTUALLY WORK

The offshore portfolio bond deserves more detailed explanation because it is the structure most frequently sold to expats — with both good and bad consequences depending on the circumstances.

When you invest in a portfolio bond, you are technically purchasing a life insurance policy. The “investment” is held within the policy as sub-funds, which can be a mix of unit trusts, OEICs, cash, and other assets. You assign the policy to yourself as the life assured and the policyholder.

The key structural feature is gross roll-up: because the policy sits in a low-tax offshore jurisdiction, the investment returns accumulate without annual tax. You do not pay income tax on dividends or capital gains tax on growth within the bond each year. Tax is deferred until you take money out.

The 5% rule (for UK purposes) allows you to withdraw up to 5% of the original investment amount each policy year without immediately triggering a tax event. This can be useful for income planning. The tax treatment on full surrender or excess withdrawals depends entirely on your country of residence at that point — which is where the planning sits.

The limitations are equally structural. Portfolio bonds typically carry higher charges than direct investment accounts. The underlying fund range can be restricted. And the insurance wrapper layer adds a degree of complexity that can be difficult to manage if you move countries, change advisers, or your circumstances change.

THE CHARGES PROBLEM: WHAT EXPATS ARE OFTEN NOT TOLD

This is where the expat investment industry has historically performed worst — and where due diligence matters most.

A portfolio bond sold in the offshore market can carry total ongoing charges — policy charges, platform charges, underlying fund charges, and adviser charges — that add up to 3%, 4%, or more per year of the fund value. On a £500,000 investment growing at 7% per year, the difference between a 1.5% total charge structure and a 3.5% one is approximately £1.2 million over 20 years. That is not a marginal difference.

The charges structure of offshore investment products is frequently opaque. Initial charges, early surrender penalties (which can last up to 10 years on some older products), trail commissions paid to advisers without your knowledge, and bid-offer spreads on underlying funds all contribute to a total cost that is difficult to calculate without deliberately doing the work.

Questions you should always ask before investing:

• What are the total charges, expressed as a percentage of my fund per year, over a 10-year holding period?
• Is there an early surrender penalty? For how long does it apply? What percentage of my fund would I lose if I withdrew in year 3?
• Does my adviser receive any ongoing commission from the product provider? If so, how much, and is it disclosed separately from the product charges?
• What happens to this account if I move countries?
• Who holds the underlying assets, and what regulatory protection do I have?

WHICH STRUCTURE IS RIGHT FOR WHICH SITUATION?

There is no universal answer — and anyone who tells you there is is either simplifying dangerously or selling you something. The right structure depends on:

Your country of residence and its tax treatment of offshore investments. Some countries tax portfolio bonds favourably; others treat them exactly like direct investment accounts for tax purposes, eliminating the main structural advantage. Malaysia, for example, generally does not tax income and gains on offshore investments for residents — which changes the calculus significantly compared to, say, a country with a global income tax system.

Your investment time horizon. The deferral benefit of a portfolio bond is most valuable over long time horizons. For shorter-term investing, the higher charges may outweigh the benefit.

Whether you expect to move countries. A well-structured offshore account can follow you across jurisdictions. A poorly structured one may create complications or locked-in positions when you move.

Your existing asset base. If you already have significant UK pension assets, the offshore account sits alongside those — and the overall structure needs to be considered holistically, not product by product.

THE BEST OFFSHORE INVESTMENT PLATFORMS FOR EXPATS

The regulated offshore investment platforms most commonly used by expats in the Asia-Pacific, Middle East and African markets include providers domiciled in the Isle of Man, Dublin, Luxembourg, and Guernsey. Not all platforms accept investors from all jurisdictions — US persons and Canadians in particular face significant restrictions due to the reach of US and Canadian securities regulation.

For expats in Malaysia and Southeast Asia, Isle of Man and Dublin-based platforms are most commonly used. For clients in the Middle East, Isle of Man, Guernsey and DIFC-regulated options are available. For clients in Africa, Mauritius-based structures and Isle of Man platforms tend to dominate.

The key factors in platform selection are regulatory status and investor protection, custody arrangements, breadth of available investments, cost, and whether the platform has a track record of dealing with the specific jurisdiction the client is in.

Offshore brokerage accounts vs investment platforms

An offshore brokerage account and an offshore investment platform are not the same thing, and the difference matters more than most expats realise. A brokerage or share dealing account is built for execution: you place trades, you hold the positions, and you carry the administration yourself. It suits confident self-directed investors who want direct market access and low dealing costs.

An investment platform sits a layer above that. It provides custody, consolidated reporting, multi-currency handling, and access to funds and model portfolios that a pure brokerage account may not offer. For expats moving between jurisdictions, the platform structure usually travels better, because reporting and custody stay intact when your tax residency changes.

Neither is automatically the right answer. If you are trading individual equities and comfortable managing your own records, an offshore share dealing account can be perfectly adequate. If you hold a diversified portfolio across currencies and expect to relocate again, a platform is generally the more durable structure.

OFFSHORE INVESTMENT PLATFORMS VS OFFSHORE PORTFOLIO BONDS

These two terms get used interchangeably, and they are not the same thing. The distinction determines your costs, your tax treatment, and how easily you can walk away.

An offshore investment platform is a custody and dealing account held in a jurisdiction such as the Isle of Man, Jersey, Guernsey or Luxembourg. You hold the investments directly. Charges are typically a platform fee plus dealing costs. There is no insurance wrapper, no establishment period, and generally no exit penalty.

An offshore portfolio bond holds those same investments inside a life insurance contract. The wrapper can deliver real advantages — gross roll-up, tax-deferred switching between funds, and favourable encashment treatment in some jurisdictions. It also adds a second layer of charges and, frequently, an establishment period during which early surrender triggers a penalty.

The honest summary: platforms suit most expats accumulating capital with an uncertain future country of residence. Bonds suit a narrower set of cases, usually where the wrapper produces a specific, quantifiable tax outcome in a known destination. If nobody has explained which of those two descriptions fits you, that tells you something about the advice rather than the product.

HOW YOUR COUNTRY OF RESIDENCE CHANGES THE ANSWER

The right structure is not a product decision made in isolation. It follows from where you are tax resident now, and where you expect to be when you draw on the money.

A resident of a territorial jurisdiction that does not tax foreign investment income faces a very different calculation from someone taxed on worldwide income at 35%. Someone under a remittance-based regime has a third set of considerations again, driven by when money enters the country rather than when it was earned.

We have set this out in detail for the three markets where we see the most confusion:

• Expat financial planning in Hong Kong — territorial taxation, no capital gains tax, and the MPF decision on departure.
• Expat financial planning in Thailand — the post-2024 remittance rules, where the timing of transfers now matters as much as the structure.
• Expat financial planning in Indonesia — worldwide income taxation and the four-year concession most expats never claim.

COMMON QUESTIONS ABOUT OFFSHORE INVESTMENT ACCOUNTS

Are offshore investment accounts legal?

Yes. An offshore investment account held in a regulated jurisdiction is an entirely legitimate arrangement used by millions of internationally mobile people. What is not legal is failing to declare it. Under the Common Reporting Standard, account information is exchanged automatically between participating jurisdictions — assume your account is visible to your tax authority and report it accordingly.

Do I have to declare it where I live?

Almost certainly, though what you declare and when depends entirely on the jurisdiction. Some tax investment income as it arises, some only on remittance, some not at all. Put this question to a local tax adviser before you open anything, not after.

Can I keep the account if I move country again?

Portability is the main structural argument for holding investments offshore rather than in a domestic account tied to one country. A well-chosen offshore account travels with you. An ISA, 401(k) or superannuation account generally does not, and can become an administrative problem the moment you leave.

What happens if I move back to the UK?

This is where structure matters most, and where the most damage gets done. UK chargeable event rules on offshore bonds, and the treatment of accumulated gains on platforms, need to be planned for before you become UK tax resident again — ideally in the tax year before you return. Options narrow sharply once you have arrived.

What should it cost?

As a rough guide, total ongoing costs — wrapper or platform, investment management and advice combined — above roughly 2% a year deserve a clear justification. Anything approaching 3% will consume a substantial share of your long-term return. Ask for the all-in figure in writing, as a percentage and as a cash amount.

To sanity-check what you are paying now, our managed portfolios page sets out how we structure and charge for this, and the investment calculator will show you what the difference compounds to over time.

WHAT THE COMPASS GROUP DOES DIFFERENTLY

We use offshore investment structures where they genuinely add value for the client’s specific situation. We do not have preferred provider arrangements or commercial relationships with platforms that influence our recommendations.

Our managed portfolio service can be implemented on whichever platform is most appropriate for your country of residence, tax situation, and investment requirements. We manage the investment strategy actively — adjusting asset allocation as markets and your circumstances evolve — rather than placing you in a model portfolio and leaving it.

Where a simpler direct investment account serves better than a portfolio bond, we say so. Where a portfolio bond adds genuine tax-deferral value, we structure it correctly from the outset to avoid the problems that make these products unnecessarily expensive or inflexible.

If you are an expat with existing offshore investments and you are not certain what you are in, what it costs, or whether it is still appropriate — a review is worth doing. In our experience, the cost of a proper review is almost always recovered from what it uncovers.