Over 20 years of working with internationally mobile professionals, I've noticed a pattern. The people who get into financial difficulty abroad rarely do so because they picked the wrong investment. They do so because nobody explained the vehicle they were putting their money into in the first place.
International investment platforms are one of those vehicles.
They've become the default infrastructure for a huge amount of expat wealth. Some of them are excellent. Others are expensive, opaque, and structured more around what generates revenue for advisers than what's in the interests of clients.
The difference matters enormously over a 20-year + investment horizon.
So here's a plain-English explanation of what an international investment platform actually is, what to watch for, and how to judge whether the one in front of you is a decent option.
An international investment platform is an online account that lets you hold multiple types of investments in one place. Think of it as a financial supermarket: shares, funds, ETFs, and tax wrappers like pensions or offshore bonds all sit under a single login.
Before platforms existed, managing your money offshore was a fragmented exercise. You'd use a stockbroker for equities, go directly to a fund manager for funds, and deal with an offshore insurance company if you wanted an investment bond.
Different accounts, different statements, different phone calls, often all managed by post or fax. Expensive, slow, and hard to get a clear view of the whole picture.
Platforms started emerging in Australia and the US in the late 1990s, and began entering the UK market around 2002. The core idea was consolidation: one place for most of your investment needs, with online access, transparent reporting, and competitive pricing. For expats, the appeal is obvious. Less paperwork, one password, one statement.
Most platforms give access to a range of investment types. These typically include:
Funds and ETFs: thousands of collective investment vehicles from global asset managers, covering equities, bonds, property, commodities, and more.
Shares: direct ownership of listed companies across global exchanges.
Tax wrappers: structures like SIPPs (UK pensions), offshore bonds, and ISA-equivalent accounts, depending on your jurisdiction and the platform's regulatory permissions.
Cash: some platforms allow you to hold cash in multiple currencies, which is useful for internationally mobile people with obligations across different countries.
The platform itself isn't an investment product. It's a service that allows you to access and hold investment products. That distinction matters when it comes to charges.
They can be, but not automatically. Three things need to be true.
First, the platform needs to actually accept clients from the country you're living in. Many UK and US platforms restrict access based on residency. Some international platforms also discriminate by geography, excluding clients in certain jurisdictions for regulatory or compliance reasons. Before you open an account, check whether your country of residence is on the approved list.
Second, the platform needs to be compatible with your tax situation. A UK ISA, for example, is a tax wrapper in the UK. It doesn't automatically carry the same tax benefits in the UAE, Singapore, or wherever you're currently resident. In some countries, locally compliant products offer significant tax advantages that a standard platform account wouldn't replicate. France, Portugal, and Spain are notable examples where offshore bonds can make more sense than a straightforward platform account, specifically because of local tax treatment.
Third, and most importantly for higher-value portfolios: the platform needs to be regulated properly. Not all international platforms carry the same regulatory weight. The difference between a platform regulated by the Financial Conduct Authority (FCA) and one operating from a lightly regulated offshore jurisdiction isn't cosmetic. It affects how your assets are held, what protections you have if the platform fails, and whether there's a credible complaints and redress process.
Regulatory oversight: the platform should be regulated by a credible authority. The FCA (UK), the Dubai Financial Services Authority (DFSA), and similar top-tier regulators set meaningful standards. Platforms regulated in jurisdictions with light-touch oversight carry more risk.
Client money segregation: your assets should be held separately from the platform's own assets. This means that if the platform becomes insolvent, your money isn't caught up in its liabilities. Check whether the platform uses a reputable custodian, such as a large, independently regulated bank or clearing firm.
Transparent charges: platform fees should be clearly stated. You should be able to see the custody charge, the dealing fee, any foreign exchange markup, and any administration costs. A platform that makes its charges genuinely difficult to understand is telling you something important about whose interests it's designed to serve.
Fund range and quality: a decent platform should give you access to clean, regulated funds at institutional prices. Some international platforms still allow the purchase of expensive, high-commission funds that have largely been banned in the UK since the Retail Distribution Review in 2012. If the funds available on the platform carry high embedded charges, that's a sign to look elsewhere.
This is worth being specific about, because the range in the offshore market is enormous. At the lower end, a clean international platform will typically charge a custody fee of around 0.25% to 0.50% per year, a modest administration charge of around £500 per year, and a one-off establishment fee of around 0.20%. Those are the base costs.
At the higher end, some offshore structures layer charges in ways that push the total annual cost to 3% to 9% of the investment. At those levels, assuming market returns of 8% to 10% annually, a substantial portion of your gains is being consumed by fees.
Independent research has shown that a 4% annual charge on a £100,000 investment over 20 years can reduce the final value by roughly half compared to a 0.5% charge. The maths compounds, and it doesn't compound in your favour.
High charges in the offshore world are often the mechanism through which upfront commissions are paid to advisers. If a platform is being recommended to you and the fee structure is difficult to parse, ask explicitly: how is the adviser being paid, and what is the total cost to me in pounds or dollars each year?
The international platform market splits broadly into two categories: those designed for self-directed (DIY) investors and those designed to be accessed through a regulated financial adviser.
DIY platforms tend to be cheaper and give you more direct control. They're appropriate if you have a clear view of what you're doing, understand the tax implications in your current country of residence, and are confident you can manage your own investment decisions without making costly mistakes under pressure. Interactive Brokers, Saxo Bank, and Swissquote are examples frequently cited for self-directed international investors.
Adviser-led platforms, such as Novia Global or Ardan International, are designed to be used alongside a financial adviser. They typically offer a wider range of planning tools, better integration with tax wrappers like SIPPs, and additional custodial protections.
If you're a senior professional managing a portfolio above £2,000,000, or if your financial life spans more than one country, the cost difference between a DIY platform and a well-structured advised solution - and working with a fiduciary financial life manager - is usually much smaller than the potential cost of getting the decisions wrong.
Offshore bonds are sometimes presented as an alternative to platforms, and in certain situations they do have genuine advantages.
For expats returning to the UK who can tolerate limited access to their capital, an offshore bond can provide tax-deferred income under UK rules. For those in France, Portugal, Italy, or Spain, locally compliant insurance bonds can offer significant tax advantages that a standard platform account doesn't provide.
But offshore bonds have historically been the vehicle most associated with high commission sales in the expat market. The FCA has issued warnings about the high costs of offshore bonds, particularly when used for pension transfers where the additional wrapper is unnecessary. The commission structures can be substantial: some bond providers allow advisers to earn up to 7% to 8% upfront from the product charges, paid by the investor over the investment term regardless of how long they remain invested.
If a bond is being recommended to you, it's a reasonable question to ask: is this the most efficient structure for my specific situation, or is it being recommended because it generates commission? The answer should be clear and verifiable.
The jurisdiction in which a platform operates determines the regulatory framework, the investor protections, and the tax treatment. Some jurisdictions are more credible than others.
Well-regarded jurisdictions for offshore investment platforms include Jersey, Guernsey, the Isle of Man, and Ireland, all of which operate under established regulatory frameworks with credible investor protections. Platforms regulated in these jurisdictions and additionally overseen by the FCA or equivalent top-tier regulator carry the strongest protections.
Platforms based in jurisdictions with minimal oversight offer fewer protections if something goes wrong. They've historically been associated with the kind of opaque charging structures that have cost expat investors significant amounts of money.
The question to ask is not just 'where is the platform registered' but 'what happens to my assets if this platform fails, and who has legal oversight of how it operates?'
International investment platforms are a legitimate and often sensible way for expats to consolidate and manage their investments. The best ones offer genuine transparency, strong regulation, competitive charges, and access to a wide range of high-quality funds.
The problem has always been that the offshore market also contains platforms and products that look similar on the surface but are structured around generating adviser revenue rather than client outcomes. The charges are harder to spot, the regulatory protections are thinner, and the consequences of being locked into the wrong structure can follow you for years.
The practical test is simple: can you see exactly what you're paying, to whom, and for what? Can you leave without punitive exit charges? Is the platform regulated by an authority that takes complaints seriously? If the answers are yes, you're probably looking at something worth considering. If the answers are unclear, keep asking until they're not.
Past performance is not a guide to future results, and platform fees compound over time in a way that significantly affects long-term outcomes. Getting this decision right at the start is worth the time it takes.
If you'd like to talk through which international investment platform might suit your situation, book a 15-minute discovery call.