There are only three offshore investment platform structures for expats. The right one depends on your tax position, not the sales pitch
Once you have established that you need an offshore route because your UK broker will not keep you as a client, the real decision starts: which structure actually holds your money. Insurance bond wrapper, self-directed brokerage account, or advised wealth management service. Each has a different fee stack, a different level of control, and a different fit depending on your tax complexity, pension situation, and how many more times you expect to move. This page compares the three on the terms that matter.
Why expats end up choosing a platform structure in the first place
Most UK-based investment platforms will not keep serving you once you become a non-UK resident. Hargreaves Lansdown and Interactive Investor, among others, stopped accepting new SIPP and ISA applications from non-residents after Brexit, and existing accounts are commonly restricted to holdings-only or hit with extra overseas charges once the provider learns you have moved. That access problem, along with the FATCA, CRS, and CARF reporting mechanics that follow your declared tax residency, and the case for Irish-domiciled UCITS over US-domiciled ETFs, is covered in full in our guide to cross-border investment for SE Asia expats.
This page starts from the point where that groundwork is done. You know you need an offshore route. The question that remains, and the one most expats get less help with, is which of the three available platform structures should actually hold the money, and why the answer is rarely "whichever one an adviser happened to recommend first".
Insurance bond, self-directed brokerage, or advised wealth management
Every offshore investment platform an expat encounters is a variant of one of these three structures. The names change by provider, but the underlying trade-off between cost, control, and coordinated planning does not.
International insurance bond wrappers
An established structure for long-term expats, offering tax deferral on growth within the bond and portability across residency changes: moving from Malaysia to Singapore, for example, does not automatically create a problem.
The trade-off is a higher cost structure than the other two options. Whether that cost is justified depends on your tax position and timeline. See the full breakdown in our offshore bonds guide, including the fee tables and the specific situations where a bond genuinely earns its cost.
Self-directed offshore brokerage accounts
Full control over fund selection and rebalancing, at the lowest ongoing cost of the three structures. You own the decisions, and you also carry the cross-border tax-reporting burden yourself.
Best suited to expats with genuine investment knowledge and a straightforward tax situation, where the absence of coordinated planning is not a meaningful gap.
Advised portfolio management services
A fee-based wealth manager integrates pension transfers, tax planning, and portfolio construction into one coordinated approach, rather than leaving you to manage each piece separately.
Fees run higher than self-directed brokerage. For genuinely complex cross-border situations, the cost of getting the structure wrong typically exceeds the advisory fee itself.
How to compare platform fees properly, structure by structure
Calculate total annual cost as one number: platform or product charge, plus underlying fund expense ratios, plus any advisory fee. A platform charging 0.5% with low-cost index funds can beat one that looks "free" on the surface but only offers actively managed funds at 1.5% to 2%. FX spreads deserve specific attention too. Some platforms apply spreads of 1.5% to 2.5% on currency conversion, undisclosed as a fee but functioning as one, and this can exceed your visible platform charge over a year if you transfer money regularly.
The compounding effect of fee differences is not trivial. A one percentage point difference in annual fees compounds to roughly 25% less terminal wealth over a 30-year horizon, assuming the fee is the only difference in net return. That arithmetic applies whichever structure you choose, which is why the total cost stack matters more than any single headline number.
| Feature | Insurance Bond | Self-Directed Brokerage | Advised Wealth Management |
|---|---|---|---|
| Relative ongoing cost | Highest of the three | Lowest of the three | Between the other two |
| Typical minimum investment | Around GBP 50,000 to 100,000+ | From a few thousand pounds | Around GBP 50,000 to 100,000+ |
| Who makes the fund decisions | Policyholder, within wrapper limits | You, entirely | Wealth manager, on your mandate |
| Cross-border tax reporting burden | Shared with provider/adviser | Sits with you | Coordinated by the manager |
| Portability across residency changes | Generally strong | Depends on the broker's residency list | Depends on the mandate and provider |
| Pension / tax planning integration | Not built in | Not built in | Core to the service |
| Best suited to | Long-timeline expats valuing deferral and portability | Straightforward tax situations with investment experience | Complex cross-border tax or pension positions |
Prioritising the lowest headline fee over total value is a common mistake. A platform saving 0.3% in fees but producing a worse tax or fund outcome loses more than it saves once you evaluate total value: platform cost, investment returns, tax optimisation, and time saved all count.
Check the regulator, the compensation scheme, and the provider's stability, not just the marketing
Regulatory jurisdiction is not a detail to skim past. The FCA (UK), MAS (Singapore), and BNM (Malaysia) each maintain their own oversight standards, and the specific compensation scheme attached to a platform varies accordingly. Two platforms that both describe themselves as "regulated" can sit under materially different protection regimes.
Before committing capital to any of the three structures, verify the platform's actual regulatory jurisdiction, which compensation scheme applies if the provider fails, and the underlying financial stability of the institution holding your assets. This applies equally to an insurance bond provider, a self-directed brokerage, and an advised wealth management firm; the structure does not substitute for checking the regulator.
Get the offshore platform comparison checklist
Bond wrapper vs self-directed brokerage vs advised wealth management, fee stacking, and the regulatory questions to ask before you commit capital.
No single structure fits everyone. Here is how to narrow it down
Investment knowledge, capital size, tax complexity, residency timeline, and pension situation all shape the right choice. There is no structure that outperforms the other two on every dimension at once, which is why the decision framework matters more than any single feature comparison.
A straightforward starting point
Straightforward situations, paired with genuine investment experience, can do well with a low-cost self-directed brokerage account. The absence of coordinated planning is not a meaningful gap when your tax position is simple and your capital structure is not.
When to weight toward advised or bond structures
Complex cross-border tax situations, significant pension assets, or plans for multiple future relocations typically benefit from integrated wealth management, or from an insurance bond wrapper's portability and deferral features, depending on your specific timeline and objectives. Neither substitutes for the other; the choice depends on which set of problems your situation actually presents.
Look at net return after fees, taxes, and currency impact when judging any platform over time, not the headline growth figure. Benchmark against an allocation-appropriate index rather than a pure equity index if you hold a balanced portfolio, and treat a platform's willingness to separate investment gains from currency effects in its reporting as a quality signal in itself.
Where tax residency and your pension fit into the platform decision
If you remain UK tax resident, worldwide investment income stays liable to UK income tax and CGT regardless of which platform structure you use, determined by the statutory residence test. Malaysia does not currently tax capital gains or foreign-sourced investment income for most individual residents, with the FSI exemption extended to 31 December 2036 under Budget 2026 (see our Malaysia expat finance guide). Singapore runs a territorial system that generally excludes foreign investment gains, and the specific treaty terms are set out in our UK-Singapore double taxation treaty guide. Thailand's rules on remitted offshore income continue to evolve and require careful, current planning. DTAs prevent double taxation on investment income, but the specific provisions depend on residency status, income type, and how each country classifies the structure you have chosen.
Not every offshore investment platform qualifies as a QROPS structure, and pension integration requires specialist advice rather than a standard platform-selection process. See QROPS vs SIPP and UK pension transfer to Malaysia for the mechanics; this page does not repeat them.
Where expats get the platform decision wrong
Prioritising the lowest fee over total value
A platform saving 0.3% in fees but delivering a worse tax or fund outcome loses more than it saves. Evaluate total value: platform cost, investment returns, tax optimisation, and time saved together, not the headline charge alone.
Ignoring regulatory protection
Verify the platform's regulatory jurisdiction, compensation scheme, and financial stability. FCA, MAS, and BNM each maintain their own oversight standards, and they are not interchangeable.
Not planning for future residency changes
Some structures create lock-in or tax complications on relocation. Ask about portability upfront, before you need the answer, not after you have already moved again.
Mistake Four: overlooking currency risk management
Holding everything in GBP while living and spending in MYR or THB exposes your purchasing power to FX moves. Diversifying currency exposure across the portfolio, matched to where you actually spend and where you plan to retire, reduces this risk regardless of which platform structure you use.
Offshore investment platforms: common questions answered
Can I keep using my UK investment ISA while living in Southeast Asia?
You can keep an existing Stocks and Shares ISA open, but you cannot make new contributions once you are non-UK resident for tax purposes, unless you are a Crown employee or their spouse. Existing holdings continue to grow tax-free inside the wrapper. For any new investment once you are non-resident, you need an offshore platform instead.
What happens to my UK investment accounts when I move abroad?
Most UK platforms require UK residency to keep an account fully active. Once a provider learns of an overseas address, it typically restricts the account to holdings-only or closes it outright. Plan the move to an offshore platform before you relocate, or shortly after, rather than waiting for the provider to act first.
Are offshore investment platforms safe and regulated?
Platforms regulated by the FCA, MAS, or an equivalent authority carry strong investor protection, though the specifics vary by jurisdiction. Verify the platform's actual compensation scheme and the financial stability of the underlying provider before committing capital, rather than assuming regulation alone settles the question.
How do I report offshore investment income to HMRC?
UK tax residents report foreign investment income and gains through the foreign pages of self-assessment, and in some cases must disclose account values. Non-UK residents generally only need to report UK-source income. The exact requirements depend on your residency status and the type of income involved.
What is the minimum investment for an offshore platform?
It depends on the structure. Self-directed offshore brokerage accounts can start from a few thousand pounds. Insurance bond wrappers and advised wealth management services typically start around GBP 50,000 to GBP 100,000 or more. The right entry point depends on which of the three structures actually suits your situation.
Should I move my UK pension into an offshore investment structure?
Not automatically. A QROPS transfer can suit expats who intend to stay abroad long-term, but it carries risk and potential tax charges if handled incorrectly. Whether it makes sense depends on the pension type, the transfer value, your residency plans, and your tax position. Specialist advice is essential before any pension transfer decision.
Key Takeaway
- There are three offshore investment platform structures for expats: insurance bond wrappers, self-directed brokerage accounts, and advised wealth management. The right one depends on your tax complexity, capital size, and residency timeline, not a single "best" answer.
- Compare total annual cost as one number, platform charge plus fund fees plus advisory fees plus FX spreads, not the headline charge alone. A one percentage point fee difference compounds to roughly 25% less terminal wealth over 30 years.
- Self-directed brokerage carries the lowest ongoing cost and full control, but you carry the tax-reporting burden yourself. Advised wealth management costs more but integrates pension, tax, and portfolio planning.
- Verify regulatory jurisdiction and compensation scheme (FCA, MAS, or BNM) for any platform before committing capital; "regulated" is not a single standard.
- Broker access restrictions, FATCA/CRS/CARF reporting, and the UCITS-vs-US-ETF fund domicile decision are covered in full in our cross-border investment guide.
Work out which platform structure actually fits your situation
Bond wrapper, self-directed brokerage, or advised wealth management: a 30-minute session maps your tax position, pension situation, and residency timeline against the three structures, and tells you which one earns its cost for you specifically.
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