UK–Spain Double Tax Treaty Explained: Pensions, Property, Dividends and CGT

Overview of the 2013 Treaty

The Double Tax Convention between Spain and the United Kingdom entered into force in June 2014, replacing the 1975 treaty. The 2013 treaty is a modern OECD-model convention and governs the allocation of taxing rights on almost all categories of cross-border income and gains between the two countries (see BOE full text). With approximately 400,000 British nationals living in Spain — and a large and growing community of Spanish nationals and businesses with UK connections — the treaty is of enormous practical importance.

The UK-Spain DTT is one of the most important international tax documents for any British national considering relocating to Spain, and for any business with UK-Spain cross-border operations. This guide works through the key provisions article by article, with particular attention to the areas of greatest practical importance for British expatriates.

Residence Tie-Breaker: Article 4

Article 4 follows the standard OECD cascade for resolving dual residence disputes:

1. Permanent home: Residence is determined by where a permanent home is available to the individual
2. Centre of vital interests: Where both countries offer a permanent home, the tie-breaker turns on closer personal and economic relations
3. Habitual abode: Physical presence pattern determines residence where vital interests are unclear
4. Nationality: British nationality resolves in favour of the UK where habitual abode is in both countries
5. Mutual agreement: Competent authorities agree in unresolved cases

For British nationals who retain a UK home while acquiring a Spanish property, the tie-breaker requires a careful analysis of where the permanent home truly is. AEAT and HMRC do not always agree on this assessment, and the centre of vital interests test — looking at family location, main professional activities, financial accounts, club memberships and social activities — is highly fact-specific. Professional advice before establishing Spanish residence is essential to avoid an unintended dual-residence position.

Employment Income: Article 15

Under Article 15, a British employee working physically in Spain is taxable in Spain on the remuneration for that work. The 183-day exception applies: if the employee is in Spain for fewer than 183 days in any 12-month period and the employer is not Spanish-resident and does not bear the cost through a Spanish PE, Spanish taxation is not triggered.

For British professionals who work from Spain remotely for UK employers — a rapidly growing population since COVID — the key question is where the work is physically performed. Remote work from Spain is work performed in Spain, and exceeding 183 days of Spanish presence triggers Spanish IRPF on that income. The Beckham Law (Article 93 LIRPF) can cap the rate at 24% for up to 6 years for those who qualify.

Pensions: Articles 17 and 19

Private Pensions and UK State Pension (Article 17)

Article 17 provides that pension income paid in consideration of past employment — including private occupational pensions and the UK State Pension — is taxable only in the country of residence of the recipient. For a Spanish resident, this means UK private pensions and State Pension are taxable in Spain at IRPF progressive rates. The UK must not withhold income tax on these payments to Spanish residents, and individuals should apply to HMRC for "NT" (no tax) coding on their pension payments.

Government Service Pensions: Article 19 — The Critical Exemption

Article 19 provides that pensions paid by the UK Government (or a UK public authority) to former government servants are taxable only in the UK. This covers pensions paid to former: civil servants, armed forces personnel, NHS employees, police officers, teachers in state schools, local government employees, and similar categories.

This is one of the most valuable provisions in the treaty for British expatriates. A former NHS consultant receiving £50,000 per year from the NHS pension scheme pays UK income tax on that pension but no Spanish IRPF. Spain may include it for progressivity, but the actual pension is sheltered from Spanish progressive rates, which could otherwise reach 47%.

Dividends: Article 10

The treaty limits UK withholding tax on dividends paid by UK companies to Spanish residents. Under the UK's domestic law, there is generally no UK withholding tax on dividends from UK companies (the UK abolished dividend withholding tax for most purposes). The treaty therefore operates primarily to ensure Spain provides credit for any UK tax withheld. Article 10 provides a maximum treaty rate of 15% (or 10% where the Spanish recipient holds at least 10% of the voting power of the UK company). Given the absence of UK domestic WHT on dividends, the treaty rate is rarely of direct relevance for UK-Spain dividend flows, but becomes important where UK tax is withheld on dividends from specific types of UK structures.

Capital Gains: Article 13

The capital gains article has several important sub-rules:

• Article 13.1 — Spanish real estate: Gains from the sale of Spanish property are taxable in Spain, regardless of whether the seller is a UK or Spanish resident. For UK residents selling Spanish property, Spain levies IRNR at 19% (EU) or 24% (non-EU) on the gain
• Article 13.2 — UK real estate: Gains from the sale of UK property by Spanish residents are taxable in the UK. Since 2015 (non-resident CGT for residential property) and 2019 (commercial property), the UK taxes non-resident gains on UK property. A Spanish resident selling UK property must file a UK non-resident CGT return
• Article 13.3 — Property-rich companies: Gains on shares in companies where more than 50% of the value derives from UK or Spanish real estate may be taxed in the country where the property is located — preventing artificial holding structures from avoiding property-country CGT
• Article 13.6 — Other gains: All other capital gains (shares, financial assets, etc.) are taxable only in the country of residence. A Spanish resident selling UK shares pays Spanish IRPF savings-income tax, not UK CGT

UK Property: Dual Reporting Obligations for Spanish Residents

Spanish residents who own UK rental property face compliance obligations in both countries:

• In the UK: UK rental income from UK property is taxable in the UK under Article 6 (income from immovable property). The landlord must file a UK self-assessment return and may need to register under the Non-Resident Landlord Scheme. UK tenants or letting agents are required to withhold UK basic rate tax from rent paid to non-UK-resident landlords unless the landlord has applied for and received a non-resident landlord approval
• In Spain: Spain includes UK property income only for progressivity purposes (exemption with progressivity under Article 23), not as directly taxable income. However, the UK property must be declared on Modelo 720 (foreign assets declaration)

UK ISA: Not Recognised as Tax-Free in Spain

This is one of the most common surprises for British expatriates moving to Spain. The UK Individual Savings Account (ISA) is a UK domestic tax wrapper — it provides exemption from UK income tax and UK CGT on income and gains arising within the ISA. Spain does not recognise the ISA wrapper as creating any tax advantage.

For a Spanish resident holding a UK ISA, income and gains arising within the ISA are taxable in Spain at savings-income rates (19–28%) in the year they arise, even though the same income/gains would be tax-free in the UK. The ISA must also be declared on Modelo 720.

Pre-migration, UK ISA holders should consider whether to close or restructure their ISA positions before establishing Spanish residency. Once Spanish resident, the ISA loses its tax advantage entirely from a Spanish perspective.

UK Trust Income Received in Spain

The treatment of UK trust income received by Spanish residents is one of the most complex areas of the treaty. Spain does not have a trust law framework, and AEAT's approach to foreign trust income is to look through the trust and attribute income to the Spanish-resident beneficiary in the period it arises. The treaty does not contain a specific trust article, so the nature and source of the trust income (dividends, interest, property income, capital gains) determines which article applies and the applicable tax treatment.

Spanish residents who are beneficiaries of UK discretionary trusts have both IRPF obligations (on distributions received) and potential Modelo 720 obligations (if they are considered to have an interest in the trust assets above the reporting threshold). This is a rapidly evolving area of Spanish tax law, and specialist advice is essential for any UK trust beneficiary considering Spanish residency.

Beckham Law and the UK DTT

The Beckham Law (Article 93 LIRPF) and the UK DTT can interact in complex ways. Under the Beckham regime:

• UK employment income for work performed outside Spain is excluded from the Beckham regime's tax base — effectively tax-free in Spain
• UK State Pension and private pension income, if it is foreign-sourced, may also be excluded — though AEAT's position on this is not universally settled
• UK government service pensions are exempt from Spanish IRPF under Article 19 of the treaty regardless of whether the Beckham Law applies
• UK dividends, interest and capital gains are included in the Beckham regime's savings-income base at 19–28% — broadly the same as the general regime

UK Non-Dom Regime vs Spanish Beckham Law

Post-Brexit Changes for UK Citizens in Spain

Brexit has created several significant changes for British citizens in Spain:

• Residency rights: UK citizens who were resident in Spain before 31 December 2020 retain their residency rights under the Withdrawal Agreement. New arrivals must now obtain non-EU residency permits
• EU Parent-Subsidiary Directive: UK companies no longer benefit from the EU P-S Directive's 0% withholding tax on intra-EU dividends. Spanish subsidiaries paying dividends to UK parent companies now apply the treaty rate (10%/15%) rather than 0%
• Non-resident CGT on UK property: Spanish residents selling UK property have always been subject to non-resident CGT. No change post-Brexit
• Spain's IRNR rate: Non-EU residents are charged 24% IRNR (vs 19% for EU residents). British citizens are now treated as non-EU for IRNR purposes from 2021. However, the DTT may cap the applicable rate depending on the income category
• The DTT itself remains in force and continues to protect against double taxation. Brexit did not affect the bilateral treaty

Practical Checklist for British Expatriates Moving to Spain

1. Determine your Spanish tax residency date precisely — this determines the first IRPF year
2. Apply for Beckham Law within 6 months if you qualify
3. Close or restructure UK ISA positions before the residency start date
4. Take your UK SIPP 25% tax-free lump sum before Spanish residency if applicable
5. Identify any government service pensions — these are exempt from Spanish IRPF under Article 19
6. Register with the Non-Resident Landlord Scheme for any UK rental property
7. File Modelo 720 by 31 March following your first year of Spanish residency
8. Notify UK pension providers of your Spanish residency for correct WHT treatment
9. Review UK trust arrangements and obtain Spanish tax advice on the impact
10. Obtain an NIE (Spanish tax identification number) as soon as possible