International Tax & Trust Planning
Understand how tax residence, assets, income and international connections can affect your tax position, and explore the role trusts may play within wider estate and succession planning.
Tax can become more complex when life crosses borders
Living, working, investing or retiring internationally can create connections with more than one tax system.
Income may arise in one country while an individual is resident in another. Investments, property, pensions and business interests may also be spread across several jurisdictions.
Understanding where tax obligations may arise is an important part of international financial planning.
Tax planning starts with understanding the facts
Nationality alone does not usually provide a complete picture of someone's tax position.
Residence, the location and type of assets, sources of income, applicable tax treaties and individual circumstances can all be relevant.
Why can cross-border tax become complicated?
Different countries apply different rules to residence, income, investments, property, pensions and estates.
Tax Residence
Residence can influence which country has taxing rights over different types of income and gains.
Income Sources
Employment, pensions, investments, rental income and business income may be treated differently.
Location of Assets
Property, investments and other assets held in different countries can create additional considerations.
Tax Treaties
Agreements between countries can affect how certain income and gains are taxed across borders.
Reporting
Individuals can have filing or disclosure obligations in one or more jurisdictions.
Changing Residence
Moving country can alter the tax context around existing assets, pensions and future income.
Tax residence is an important starting point
Where someone is considered tax resident can have a significant effect on their international tax position.
Residence rules differ between countries, and an individual can sometimes have connections with more than one jurisdiction during the same period.
Tax treaties may then become relevant when determining how particular income or gains are treated.
Information that may be relevant
- Countries in which you live or spend significant time
- Where employment or business activities take place
- Location of property and other assets
- Sources of pension and investment income
- Previous countries of residence
- Future plans to move or return to another country
Taxes that can form part of international planning
The taxes relevant to an individual depend on their circumstances, assets, income and the jurisdictions involved.
Income Tax
Employment, pension, rental and investment income can potentially create tax obligations.
Capital Gains Tax
Selling or disposing of investments, property and other assets can have tax consequences.
Inheritance & Estate Taxes
Estate taxation can depend on residence, asset location and the rules applying in the jurisdictions involved.
Property Taxation
Owning, renting or disposing of property internationally can involve several forms of taxation.
Pension Taxation
Pension contributions, lump sums and retirement income can be treated differently across countries.
Business Interests
Business ownership or cross-border working arrangements can create additional personal and corporate tax considerations.
International financial information is increasingly connected
Cross-border financial arrangements operate within an increasingly transparent international reporting environment.
Common Reporting Standard
The Common Reporting Standard forms part of the international framework through which participating jurisdictions exchange certain financial account information.
This makes accurate information about tax residence and financial arrangements increasingly important.
Multiple tax obligations can arise
Having assets or income in another country does not necessarily mean the same amount of tax is payable twice.
Domestic tax rules and applicable double taxation agreements can influence which country taxes particular income and whether relief may be available.
What role can a trust play?
A trust is a legal arrangement under which assets are held and managed for specified beneficiaries or purposes.
Trusts can form part of estate, succession and family wealth planning, but their legal and tax treatment can be complex.
For internationally mobile families, the position can become more complicated because the settlor, trustees, beneficiaries and assets may all have connections with different jurisdictions.
A trust is not simply a tax-saving product
Establishing a trust can create legal, administrative, reporting and tax consequences.
The treatment of a trust can depend on factors including the type of trust, residence of the people involved, location of assets and the tax rules of relevant jurisdictions.
Existing trusts may also need to be reviewed when individuals move between countries.
Why might trusts form part of wider planning?
The purpose and suitability of a trust depend on the circumstances and the legal and tax systems involved.
Succession Planning
Trusts may be considered when planning how assets are managed or passed to future generations.
Family Wealth
They may provide a framework for managing assets for children or other beneficiaries.
Estate Planning
Trust arrangements can interact with wills, inheritance rules and wider estate planning.
International Families
Cross-border families may need to consider how different legal and tax systems treat an existing or proposed trust.
UK rules for internationally mobile individuals have changed
Historic discussions of UK international taxation frequently focused on concepts such as non-UK domicile, deemed domicile and the remittance basis.
Significant reforms took effect from April 2025, including a move towards residence-based rules in important areas of UK taxation. Inheritance Tax treatment of overseas assets can now depend on long-term UK residence rather than the previous domicile-based framework.
Because these rules can change and transitional provisions may apply, current HMRC guidance is an important source when considering an individual's position.
View Current UK Tax Residence Guidance →Building a clearer cross-border tax picture
International tax planning begins by understanding the jurisdictions, assets and income involved.
Establish Residence
Understand which countries may regard you as tax resident.
Map Income & Assets
Identify where income arises and where pensions, investments, property and other assets are held.
Understand the Rules
Consider the domestic tax rules and relevant international agreements applying to the circumstances.
Keep the Position Under Review
Changes in residence, legislation, assets or family circumstances can alter the international tax picture.
Current information from HMRC and GOV.UK
Tax rules change over time. Official guidance provides the current position on UK residence and related tax rules.
UK Tax Residence Guidance
Access current HMRC guidance covering UK tax residence and rules for internationally mobile individuals.
Visit GOV.UK →Inheritance Tax & Long-Term UK Residence
Read current Government guidance on how long-term UK residence can affect the Inheritance Tax treatment of overseas assets.
Read HMRC Guidance →International Information Reporting
Learn about the UK's Automatic Exchange of Information framework, including the Common Reporting Standard.
Read GOV.UK Guidance →International Tax & Planning Articles
Explore recent educational articles covering tax, international financial planning and life across borders.
International Tax & Trust FAQs
What is international tax planning?
International tax planning involves understanding how the tax systems of different countries may apply to an individual's income, assets, investments, pensions and estate.
Does moving abroad mean I stop paying UK tax?
Not necessarily. UK tax obligations can depend on tax residence, the source of income, the type and location of assets and other circumstances. Someone living overseas can still have UK tax obligations.
Can I be connected to the tax systems of two countries?
Yes. Cross-border circumstances can create tax or reporting obligations in more than one jurisdiction. Tax treaties may be relevant when determining how certain income or gains are treated.
What is a trust?
A trust is a legal arrangement in which assets are held and managed by trustees for specified beneficiaries or purposes. Different forms of trust can have different legal and tax consequences.
Can a trust reduce tax?
The tax treatment of a trust depends on its structure, the people involved, the assets held and the jurisdictions concerned. Establishing a trust can itself create tax, reporting and administrative obligations, so it should not be viewed simply as a way to reduce tax.
Are the old UK non-dom rules still relevant?
The UK's taxation of internationally mobile individuals changed significantly from April 2025. Previous rules based on non-UK domicile and the remittance basis were replaced in important areas by residence-based rules, although historic and transitional circumstances can still require consideration.
Can moving country affect an existing trust?
Potentially. The residence of a settlor, trustees or beneficiaries and the location of trust assets can affect how a trust is treated under different legal and tax systems.
Understand how tax fits into your wider international plan
Cross-border tax can interact with pensions, investments, property, estate planning and changes in residence. Understanding those connections can help build a clearer picture of your wider financial position.