How to Invest £100,000 Abroad: A Practical Guide

£100,000 is a sum that deserves serious thought. Invested well over twenty or thirty years, it can form a meaningful part of a retirement nest egg. Invested carelessly — in the wrong structure, with excessive fees, chasing last year's returns — it can deliver frustratingly poor results. For internationally mobile investors, additional layers of complexity arise: which tax wrapper is appropriate, which jurisdiction should hold the investment, and how should you account for currency risk?

This guide offers a practical framework. It is not a specific investment recommendation — your individual circumstances, tax position, and goals should determine the precise allocation. But it outlines the questions to ask and the approach to take.

Step 1: Clarify your goals before you invest anything

"What should I do with £100,000?" is not a well-formed investment question. Before deciding what to invest in, you need to establish:

What is the money for? A lump sum destined for a child's university costs in five years should be invested very differently from capital you will not need for twenty years. Income-generating investments may be appropriate if you need regular cash; growth-oriented investments if you are building for a future date.

What is your time horizon? Equity markets can fall significantly and stay down for years. If there is any chance you will need this money within three to five years, the risk of holding equities is material. Your time horizon should drive your asset allocation, not your appetite for excitement.

What is your genuine risk tolerance? Most investors overestimate their risk tolerance in calm markets and discover the reality during a sharp decline. A portfolio that causes you to panic and sell in a market downturn is worse than a less ambitious but more resilient portfolio you will hold through volatility. Be honest with yourself.

Is this your only capital? If £100,000 represents the entirety of your savings, the case for conservatism is strong. If it is a relatively small portion of a larger overall portfolio, you can afford to accept more volatility.

Step 2: Establish an emergency fund first

Before investing any of the £100,000 into long-term investments, ensure you have three to six months of living expenses in readily accessible cash — ideally in a bank account in your country of residence. This is not an investment; it is a financial safety net.

Without an emergency fund, a sudden unexpected expense — a job loss, a major medical cost, a property repair — could force you to liquidate long-term investments at the worst possible time. The emergency fund means your investments can remain invested for the full intended period.

Step 3: Choose an appropriate tax wrapper

For internationally mobile investors, the choice of investment structure can have as much impact on after-tax returns as the underlying investment performance.

Offshore portfolio bond. For non-UK residents (or those who intend to become non-UK resident), an offshore portfolio bond — typically issued from the Isle of Man, Guernsey, or Ireland — offers significant tax efficiency. Growth within the bond is not immediately taxable; UK income tax is only assessed when you take withdrawals, and the 5% tax-deferred withdrawal allowance allows you to draw income each year without triggering an immediate tax event. These products are particularly suitable for investors who will be resident in a low-tax or zero-tax jurisdiction during the accumulation phase and may return to a higher-tax jurisdiction in retirement. Seek specialist advice — the rules are complex.

ISA (for UK residents only). If you are UK tax resident, an ISA allows investment of up to £20,000 per year free from UK income tax and CGT. Note: ISA contributions are only available while UK resident. Non-residents cannot contribute to an ISA.

SIPP/pension. If you have relevant UK earnings, pension contributions attract tax relief and provide tax-sheltered growth. See our pension vs property article for a fuller discussion of pension suitability for expats.

Unwrapped (general investment account). Investing directly into a brokerage account — without a tax wrapper — exposes investment returns to income tax on dividends/interest and CGT on growth. In a zero-tax jurisdiction (such as the UAE), this is fine — there is no local tax to shelter against. But as a long-term structure for someone who may eventually return to a higher-tax country, it may be inefficient.

Step 4: Build a diversified portfolio

The following is one illustrative allocation for a long-term investor with a moderate risk tolerance — not a specific recommendation, but a framework to think with:

Global equities: 40–50%. A low-cost, globally diversified equity fund or ETF covering developed and emerging markets provides exposure to global economic growth. This is typically the growth engine of the portfolio. Look for annual charges well below 0.5% — there is no reason to pay significantly more for broad market exposure.

Bonds: 15–25%. Investment-grade bonds in major currencies provide income and act as a partial buffer against equity market volatility. A meaningful bond allocation remains appropriate in a balanced portfolio for its defensive and income characteristics.

Property/REITs: 10–15%. Real estate investment trusts provide exposure to property returns — residential, commercial, industrial, or specialist (data centres, healthcare) — without the illiquidity, transaction costs, and management burden of direct property. Listed REITs can be bought and sold like equities and require no minimum investment beyond a share price.

Alternatives: 5–10%. Infrastructure funds, commodities (including a small gold allocation for portfolio resilience), or specialist strategies can provide genuine diversification from equities and bonds.

Cash/short-duration bonds: 10–15% initially. Rather than investing the full £100,000 on day one, holding a portion in short-duration bonds or cash and deploying it systematically over six to twelve months reduces the risk of investing a large sum at a market peak.

Common mistakes to avoid

Putting everything in property. A single UK buy-to-let property absorbs all £100,000 in a concentrated, illiquid, high-transaction-cost investment. The diversification, liquidity, and tax wrapper advantages of financial assets are significant.

Chasing last year's best performer. Whatever performed best last year is the most crowded and often the most expensively valued investment today. Building a diversified portfolio and holding it is a more reliable approach than rotating into recent winners.

Paying excessive fees. Annual charges of 2% per year on a £100,000 investment cost you around £2,000 in the first year — and compound over time to an enormous drag on returns. A well-constructed portfolio need not cost more than 0.5–1% per year in total charges, including adviser fees, fund charges, and platform costs. Anything significantly above this requires clear justification.

Ignoring tax efficiency. Investing in the wrong structure because it is the most familiar or most readily available is a common error. An offshore portfolio bond or a pension may outperform an unwrapped account by several percentage points per year on an after-tax basis, depending on your circumstances.

Investing without a plan. A portfolio without a plan is likely to be managed reactively — adding to positions after they have risen, selling after they have fallen, and generally underperforming a systematic strategy. Set out a written investment policy before you begin.

The value of professional advice

For most investors, getting good advice before committing £100,000 to a long-term investment strategy is worth the cost. A competent independent adviser will help you select the right structure, ensure the investment is appropriate for your goals and risk tolerance, identify tax efficiencies, and — crucially — provide the discipline to stick to the plan during market volatility.

The cost of advice should be transparent and proportionate. Be wary of advisers whose remuneration structure creates incentives to recommend more complex or more expensive products than your situation requires.

---

This article is for general information purposes only and does not constitute personal investment advice. The value of investments can fall as well as rise and you may get back less than you invest. Tax treatment depends on individual circumstances and is subject to change. Global Investments recommends seeking independent financial advice tailored to your situation — contact us to speak with our team.