Buying Property Abroad as a UK Resident: Tax, Estate Planning, and Practical Pitfalls

Purchasing a holiday home or investment property abroad is among the most significant financial decisions a UK resident can make. Beyond the lifestyle appeal and investment potential, buying overseas property creates a web of tax obligations in the UK, tax obligations in the country of purchase, estate planning complexity, and practical legal and currency considerations.

This guide addresses the full picture for UK residents — people who are tax-resident in the UK but own property in another country.

UK Tax Obligations: The Arising Basis

UK residents are generally taxed on the "arising basis" — meaning all income and gains arising anywhere in the world are subject to UK tax, whether or not the money is brought to the UK. (The non-dom remittance basis was abolished from 6 April 2025 and replaced by a four-year Foreign Income and Gains regime for new arrivers; the old basis is no longer available to new claimants.)

This means:

Rental income from overseas property must be declared on the UK self-assessment tax return. The rental income is taxable income in the UK in the year it arises, regardless of whether it is paid into a UK or overseas account. The applicable UK tax rate is the investor's marginal income tax rate (20%, 40%, or 45%).

Allowable deductions against the rental income include:

• Local property management fees
• Maintenance and repairs (not improvements)
• Mortgage interest (where applicable) — but note that the Section 24 restriction applies to UK rental income only; overseas rental income deductions are not subject to the same restriction under UK domestic law, though the Double Taxation Agreement treatment may affect this
• Insurance premiums
• Local property taxes (annual charges, not transaction taxes)
• Reasonable travel costs to inspect the property

Capital gains on the disposal of overseas property are also subject to UK CGT. The gain is calculated using the sterling value of the proceeds and the sterling value of the original cost — meaning currency movements can affect the size of the gain as well as market movements.

Double Taxation: How It Works in Practice

Most countries that are popular with UK property buyers (Spain, France, Portugal, Italy, Greece, UAE, Thailand) have Double Taxation Agreements (DTAs) with the UK. The DTA governs how rental income and capital gains are taxed when both countries have the right to tax.

For rental income: most UK DTAs follow the OECD model, which gives the "source country" (the country where the property is located) the primary right to tax rental income from property in that country. The UK — as the country of residence — also taxes the income, but gives a credit for the tax paid in the source country.

In practice: if you pay 25% tax in Spain on Spanish rental income, the UK will also tax it — but will credit the 25% Spanish tax against your UK liability. If your UK marginal rate is 45%, you owe a further 20% to HMRC (45% - 25% = 20%). The total tax rate is 45%, split between the two countries.

If the source country rate is higher than the UK rate, there is no additional UK tax — but no refund of the excess foreign tax.

For capital gains: most DTAs also give the source country the right to tax gains on the disposal of immoveable property. The UK similarly gives credit for the overseas CGT paid.

Some countries have no CGT on property (UAE, Bahrain, Cayman Islands). Where no overseas CGT is paid, the full UK CGT rate applies to the gain with no credit.

UAE Property: The Common Misconception

A frequent error: UK residents who own UAE investment property assume the zero UAE tax means there is no UK tax. This is incorrect. The zero UAE tax means there is no credit against UK CGT or income tax — the full UK rate applies to all income and gains.

A UK additional rate taxpayer with UAE rental income pays 45% UK income tax on that income (after expenses). A disposal of a UAE property generating a £200,000 gain triggers £47,520 UK CGT (24% of £197,000 — the gain above the £3,000 annual exemption). There is no UAE tax, but the UK liability is the same as for a UK property.

Spain: A Common Destination with Specific Complexities

Rental income: Spain taxes non-resident landlords' Spanish rental income. The rate for EU/EEA residents is typically 19% on net income; for non-EU residents (including UK post-Brexit) it may be 24% on gross income (verify current rules). This is a significant difference — the gross vs net distinction can double the effective tax rate. UK residents may be able to claim expenses under the UK-Spain DTA. Professional Spanish tax advice is essential.

Capital gains: Spain taxes non-resident capital gains on Spanish property at 19% (for EU/EEA residents) or 24% (for others; verify current rules). Additionally, Spain withholds 3% of the sale price at completion as a payment on account of the non-resident's CGT liability — this is paid by the buyer to the Spanish tax authorities. If the actual CGT is less than 3% of the sale price, a refund can be claimed.

IHT implications: Spanish inheritance tax (Impuesto de Sucesiones) applies to Spanish-sited property regardless of the owner's nationality or domicile. Rates vary by autonomous community and can be high. A UK will does not override Spanish IHT. The Spanish tax must be modelled as part of estate planning.

France: Notary System and Annual Property Taxes

Taxe foncière (property owner's tax) and taxe d'habitation (occupancy tax — now mainly abolished for primary residences but may apply to secondary homes) are annual local taxes. These are deductible expenses against rental income.

French rental income: France withholds tax on non-resident rental income and requires a French tax return (declaration des revenus fonciers). The DTA gives France primary taxing rights; the UK taxes the net income but gives credit.

Capital gains: French non-resident CGT (Plus-values) applies at 19% on the gain (with social charges, total effective rates can be higher). The gain calculation in France uses a different methodology from UK CGT, with tapering relief for long-held properties. Take specialist advice before disposing of French property.

Thailand: Leasehold Only for Foreigners

Thailand prohibits foreigners from owning freehold land. The practical options are:

• Leasehold for up to 30 years (renewable in practice but not legally guaranteed)
• Condominium (apartment) ownership — foreigners can own up to 49% of units in a condominium block on freehold title

UK residents with Thailand rental income must declare it on the UK tax return. The UK-Thailand DTA applies. Thailand taxes rental income at domestic rates (progressive scale); a credit is available in the UK.

Practical Purchase Considerations

Legal due diligence: always engage an independent local lawyer (not the selling agent's recommended solicitor). The lawyer checks title, planning permissions, outstanding mortgages, ownership restrictions, and any third-party rights. This step is non-negotiable.

Survey: UK buyers are accustomed to the RICS survey standard. Many international markets do not have equivalent independent structural survey professions. An independent structural survey should be commissioned where possible, particularly for older properties.

Currency: the deposit and purchase price are typically in the local currency. Using a specialist FX provider (rather than a bank) to convert sterling saves materially on a transaction of this size.

Reservation deposit: in many countries, a reservation agreement and deposit is the first binding commitment. Read this carefully — in some jurisdictions it is partially or fully non-refundable.

Exchange rate risk: the gap between reservation/exchange and completion (which can be months for off-plan properties) creates currency risk. Consider a forward contract to lock the exchange rate.

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Tax rules for UK residents with overseas property are complex and change frequently. DTA treatment varies by country. Always seek qualified UK tax advice and local legal advice before purchasing property abroad.

How Global Investments can help

Global Investments advises UK resident clients on the full financial picture of purchasing overseas property — covering UK tax obligations on rental income and capital gains, DTA analysis, currency considerations, and estate planning implications. We can coordinate with local legal and tax advisers in the country of purchase to ensure no aspect of the transaction is overlooked. Contact our team to discuss any overseas property purchase.