How to structure your wealth to support a life across multiple countries
International retirement planning is about managing your tax, investments, and long-term plans so your wealth works smoothly across more than one country.
For many people today, life doesn’t fit neatly within one country. You may have grown up in the UK, gone to university in Canada, worked in Japan, and fallen in love with a partner from South Africa. You may have family and friends you adore, living all over the world. And international investment opportunities are more accessible than ever.
Because of these cross-border ties, globally mobile family lives are becoming more common, often involving assets, commitments and connections in more than one country. Rather than making a single, permanent move, many people are choosing to live across borders – spending extended time in different countries while maintaining financial, family, and personal ties in the UK and beyond.
These decisions reflect, as they always should, our own personal search for happiness and fulfilment – we might spend time abroad because we treasure warmer winters, Mediterranean café culture, enjoy having the option to move when and where we want, or because our grown-up child has built a family in Australia. These considerations should always come first, but they introduce a level of financial complexity that can shape our finances for decades.
Moving internationally can affect your tax position, investments, estate planning, and currency exposure. The biggest challenge isn’t any single decision. It’s making sure your tax, investments, and property arrangements don’t conflict across multiple countries, now and in the future.
When you’re managing wealth across countries, short-term decisions rarely matter most. It’s about supporting you over the long term, preserving your choices, and ensuring that your financial decisions continue to support how you want to live – wherever life takes you.
Why is planning across countries different?
An international life rarely follows a straight line. Rules for residency may evolve. Tax regimes change. Family needs shift across generations. A property first purchased as a holiday home may later become a primary residence, a base for children or grandchildren, or a long‑term family asset, to be passed from one generation to another.
If you live, work or own property in more than one country, your finances may be more complex than you realise – and small decisions today can have long-term consequences.
You could be a UK‑based executive buying a place in Spain while keeping UK ties, for example. This means you may face overlapping tax reporting requirements.
Yet many financial structures are designed as though circumstances will remain fixed. This gap between how life unfolds and wealth is arranged is where risk often emerges.
In practice, the challenge is often less about any individual decision and more about how different systems interact with each other.
Tax residency, asset location, legal ownership, and succession planning may each follow different rules in different countries. Without careful consideration, these can create unintended outcomes over time.
Good cross-border planning gives you options – so you can adapt as life changes.
Start with your life in different countries not just the move
International planning often begins with a catalyst. You might find yourself balancing time, commitments, and assets across more than one country over the long term.
For example, you might have a UK home, spend the school holidays in sunny Portugal, own a couple of local rental properties, and plan to spend time between the UK and Thailand once the children have grown up and flown the coop.
A more effective approach begins with intent:
- Do you plan to live in just one country for the long term?
- Is your move permanent or do you want to keep your options open?
- How can your wealth support your lifestyle today while helping future generations?
Understanding your goals early on helps ensure that decisions around tax, investments, and ownership are right for your circumstances. It also creates a reference point for deciding what really matters to you when legal, tax, and family considerations might pull you in different directions.
Buying property abroad: why structure matters
Property abroad is often one part of an international plan – and one that can introduce additional complexity.
The way an overseas property is acquired and held can influence:
- Cross‑border tax exposure – where do you have to pay tax?
- Succession and inheritance outcomes – how will you pass on your assets to the next generation?
- How are decisions made within your family?
- Access to liquidity elsewhere in your portfolio – do you have easy access to cash to deal with unexpected spending or to take advantage of opportunities?
Once established, ownership structures can be difficult or expensive to unwind. Early decisions may carry long‑term consequences.
Addressing these questions upfront can preserve flexibility and help avoid unintended family complexity.
This is where liquidity – how easily you can turn an asset into cash – becomes essential.
Liquidity planning: making sure you have access to cash
Liquidity isn’t just about property ownership – it’s about how your assets support your spending and obligations across different countries.
Access to cash often isn’t foremost in your thoughts when you’re making plans. Yet it’s frequently the factor that determines whether international arrangements remain workable over time.
Living across borders can create uneven cash flow patterns. You may be spending in one currency, while your assets are held in another. Tax liabilities may arise unexpectedly, especially if you’re unfamiliar with the tax rules of your chosen country of residence.
Access to capital isn't always straightforward when assets and liabilities sit in different countries.
If you don’t have enough liquidity, you may be forced into reactive decisions, like selling assets at inopportune moments, such as when the markets are down. This may then disrupt your investment strategy or narrow your future choices.
Effective liquidity planning focuses on ensuring your financial plan can support:
- Day-to-day spending on your everyday life across different countries
- The continuing costs of owning and maintaining property
- Future events, such as retirement, succession, or unexpected tax liabilities
- Changes in your circumstances – or opportunities you may want to act on
Rather than simply holding cash, the emphasis is on how assets work together to help you adapt to change and take advantage of opportunities.
Even with careful liquidity planning, there may be times when you want access to capital without reshaping your investment portfolio.
In some cases, borrowing may form part of a wider strategy. What matters is how any decision fits within your overall financial position and long-term plans.
Managing advice across multiple countries
As your plans become more complex, you’re also likely to rely on advice from different countries.
If you have assets or interests in more than one country, you may need guidance from overseas tax and legal experts. This advice is important, but it can sometimes feel unclear or disconnected from your overall financial plan.
Common challenges include:
Advice that only considers one country, not the full picture
Different advisers giving conflicting recommendations
A focus by advisers on meeting rules, rather than your long‑term goals
The real value comes from joining everything up – turning technical advice into clear decisions that work for your cash flow, investments, and future plans.
Rather than looking for one ‘right’ answer, good planning is about understanding your options and choosing what works best for your long‑term goals.
Family decision‑making across borders
When wealth spans multiple countries, it’s rarely just about one person. It often involves family members across generations. This can become particularly important when family members are based in different jurisdictions, where expectations, legal frameworks and access to assets may not always align.
As things become more complex, it’s important to be clear on:
- Who makes decisions
- Who can access the wealth
- What happens if circumstances change
Setting this up early helps protect both your wealth and your family relationships. It also ensures your plan reflects what truly matters to you – not just the most efficient option on paper.
Planning beyond today’s tax rules
Tax can often prompt a move abroad. But building a plan only around today’s rules can be risky – because tax regimes change over time. You may have already seen the occasional headline popping up about the calls for wealth taxes in various countries.
A more robust approach is to think ahead:
How might your plans work if tax rules change?
What happens if your residency or family situation evolves?
Focusing on flexibility, rather than short‑term tax savings, can help you avoid costly changes later – and give you more confidence in your long‑term decisions.
How Rathbones supports international wealth planning
When your life spans countries, financial decisions rarely sit in isolation. Tax, legal frameworks, and long-term wealth structures all need to remain aligned as your circumstances evolve.
A joined-up approach brings these elements together – helping you make decisions with clarity and confidence.
At Rathbones, we focus on understanding what matters most to you, then shaping a plan that can evolve as your life does. This isn’t about finding one answer today, but about supporting you over time as circumstances change.
That long-term relationship gives you the confidence that your wealth will continue to support you, your family, and the life you want to lead – wherever life takes you next, whether that’s splitting your time between countries or buying the château of your dreams in France, as your future main home.
We don't offer tax advice. We recommend you speak to a tax adviser if you're unsure about your situation.
What to do next
If your life or finances span more than one country, it may be worth stepping back to review how everything fits together. A useful starting point is to review how the different parts of your international position fit together:
You may benefit from advice if you:
- Spend time living or working in more than one country
- Own, or are considering buying, property abroad
- Are considering moving or spending extended amounts of time abroad
- Have investments, pensions, or income in multiple currencies
- Expect to pass wealth across borders to family members
- Are unsure how your tax position may be affected by an international lifestyle
A first step could be reviewing:
- Where you are currently tax resident – and where this may change in future
- If you’re moving, will it be a permanent or temporary move
- How your assets are structured across different countries
- Whether you have sufficient access to cash to support your lifestyle
- How your plans would work if tax rules or circumstances change
This kind of review can help identify gaps, avoid unintended consequences, and give you greater confidence in your long-term plans.
If you would like to explore this in more detail, you can speak to your usual Rathbones contact or arrange an initial conversation with our financial planning team via the contact form below.
