Is a Spanish Will Valid in the UK? Cross-Border Estate Planning Explained

If you own property in Spain but are domiciled in the UK, your estate could face a legal nightmare. Two countries, two legal systems, two probate processes — and potentially conflicting rules about who inherits what. Understanding how Spanish and UK wills interact is essential to protecting your assets and your family.

Is a Spanish Will Valid in the UK?

The short answer: it depends. A will made in Spain that complies with the formal requirements of Spanish law is generally considered valid for disposing of Spanish assets. However, when it comes to UK assets or UK probate proceedings, things get complicated.

Under English law, the validity of a will is assessed under the Wills Act 1963, which is relatively generous: a will is formally valid if it complies with the law of the place where it was executed, or the law of the testator’s domicile, habitual residence, or nationality at the time of execution or death. So a will made in Spain under Spanish formalities can be recognised in England.

However, recognition and practical enforceability are different things. A Spanish will presented to the UK probate registry will likely require:

• An official sworn translation into English
• An Apostille certifying its authenticity
• Proof that it complies with the formal requirements of the law under which it was made
• Evidence of the testator’s testamentary capacity under the relevant law

Scottish law follows similar principles but with differences in detail (the Wills Act 1963 applies UK-wide, but succession law differs between England/Wales and Scotland).

Is a UK Will Valid in Spain?

Similarly, a will made in England under English formalities can be valid in Spain for the purposes of disposing of Spanish assets — but it will require careful handling. The Spanish inheritance process involves presenting the will before a Spanish notary, and the notary will need:

• The original will or a certified copy with Apostille
• A sworn Spanish translation (traducción jurada)
• A certificate from the Registro de Actos de Última Voluntad (Spanish Wills Registry) confirming no later Spanish will exists
• A certificate from the UK Probate Registry if probate has been granted in England

Brussels IV (EU Succession Regulation 650/2012) — The Game Changer

Brussels IV is the EU regulation that determines which country’s succession law applies to a person’s estate. The default rule is that the law of the country of the deceased’s habitual residence at the time of death governs their entire estate — including property in other EU member states.

Crucially, Brussels IV allows you to make a choice of law (professio juris): you can elect in your will that the law of your nationality should apply instead of the law of your habitual residence.

Why This Matters for British Nationals in Spain

If you are a British national habitually resident in Spain and you die without a choice-of-law clause in your will:

• Spanish succession law applies to your entire worldwide estate (under Brussels IV)
• Spanish law includes forced heirship rules (legítima): your children are legally entitled to two-thirds of your estate, and your spouse has usufructo (right of use) over a portion
• You cannot freely leave everything to your spouse and disinherit your children under Spanish law

If you include a choice-of-law clause electing English law:

• English succession law applies — there is no forced heirship in England
• You have testamentary freedom to leave your estate to whoever you wish
• Spanish notaries and courts are required to respect this choice under Brussels IV

Important post-Brexit note: Although the UK left the EU, Brussels IV still applies in Spain. Spanish courts apply the regulation regardless of whether the deceased’s country of nationality is an EU member. The regulation determines which law applies; it does not require reciprocity.

The Dual Wills Strategy — Why You Probably Need Two Wills

Most cross-border estate planners recommend having two separate wills: one for your Spanish assets and one for your UK assets. Here’s why:

Comparison: Single Will vs Dual Wills

Factor	Single Will (One Country)	Dual Wills (Spain + UK)
Probate speed	Slow — must be processed in both countries sequentially	Faster — both probate processes can run in parallel
Translation costs	Full will must be translated and apostilled	Each will is already in the correct language
Risk of conflict	Lower (one document) but harder to administer	Requires careful drafting to avoid one will revoking the other
Local compliance	May not meet local formalities in the other country	Each will meets local requirements perfectly
Brussels IV choice of law	Must be included and may be overlooked by foreign authorities	Included in Spanish will where it’s most needed
Cost to prepare	Lower initial cost	Higher initial cost but significant savings on probate

Critical Rule: Avoid Accidental Revocation

The single most dangerous mistake in dual-will planning is one will accidentally revoking the other. Standard will-drafting practice in England includes a clause such as “I revoke all previous wills and testamentary dispositions.” If your English solicitor includes this clause without limiting it to UK assets, it will revoke your Spanish will.

Both wills must contain carefully worded clauses specifying:

• The geographic or asset scope of each will (e.g., “This will applies only to my assets located in Spain”)
• That the will does not revoke wills made in other jurisdictions governing assets in those jurisdictions

Probate in Both Jurisdictions — A Practical Timeline

When someone with assets in both Spain and the UK passes away, the typical process involves:

In the UK:

1. Apply for Grant of Probate at the Probate Registry (typically 4–8 weeks)
2. Executors manage and distribute UK assets
3. Obtain certified copies of the Grant of Probate for Spanish use

In Spain:

1. Obtain a death certificate (certificado de defunción) — if the death occurred abroad, this must be registered in Spain or apostilled
2. Request a certificate from the Registro de Actos de Última Voluntad (Spanish Wills Registry) — confirms the existence and location of any Spanish will
3. Obtain a certificado de seguros (insurance registry certificate) to check for any life insurance policies
4. The heirs execute the escritura de aceptación de herencia (deed of acceptance of inheritance) before a Spanish notary
5. Pay inheritance tax (Impuesto de Sucesiones y Donaciones) within 6 months of death (extendable by 6 months if requested within the first 5 months)
6. Register the property transfer at the Land Registry (Registro de la Propiedad)

Total timeline: Spanish probate typically takes 6–12 months, sometimes longer if there are disputes or documentation issues.

Common Mistakes in Cross-Border Estate Planning

1. Not having a Spanish will at all: Relying solely on a UK will for Spanish property creates massive delays and expense
2. Revoking one will with the other: The accidental revocation problem described above
3. Ignoring forced heirship: Failing to include a Brussels IV choice-of-law clause, resulting in Spanish forced heirship rules applying unexpectedly
4. Not registering the Spanish will: A Spanish will made before a notary is automatically registered. But if made privately (testamento ológrafo), it must be judicially validated — a slow and expensive process
5. Appointing executors who can’t act: Your UK executor may not be able to act in Spain without a power of attorney. Consider appointing a Spanish lawyer as executor or co-executor for Spanish assets
6. Ignoring plusvalía tax: When property changes hands through inheritance, the municipal capital gains tax (plusvalía municipal) may apply. Budget for this in your estate plan
7. Joint ownership structures: Jointly owned property (common in the UK) is treated differently under Spanish law. Ensure your will correctly addresses your share

Steps to Get Your Cross-Border Estate Plan Right

1. Audit your assets — list everything you own in Spain (property, bank accounts, vehicles, investments) and in the UK
2. Decide on choice of law — most British nationals in Spain should elect English/Scottish law in their Spanish will to avoid forced heirship
3. Instruct specialist lawyers in both countries — your Spanish lawyer and UK solicitor should coordinate to ensure the wills are compatible
4. Execute your Spanish will before a notary — this ensures automatic registration and easy access by heirs
5. Review both wills every 3–5 years or after any major life event (marriage, divorce, birth, property purchase/sale)
6. Communicate your plans — ensure your family knows that two wills exist and where to find them

How Costa Luz Lawyers Can Help

Our bilingual legal team specialises in cross-border estate planning between Spain and the UK. We work directly with your UK solicitor to create a coordinated dual-will strategy that protects your wishes and minimises your family’s tax and administrative burden.

We handle:

• Drafting Spanish wills with Brussels IV choice-of-law clauses
• Coordinating with UK solicitors on dual-will compatibility
• Spanish probate and inheritance tax returns
• Property transfers following inheritance
• Powers of attorney for estate administration

Related reading:

• Making a Spanish Will — Complete Guide
• Inheritance Tax in Spain — Rates and Allowances
• Guide to Probate in Spain

Related: Is a Spanish Will Valid in the UK? Cross-Border Estate Planning Explained

Reviewed by María Luisa de Castro, CEO at CostaLuz Lawyers — Updated 2026

This is general information, not definitive legal advice — every case requires individual analysis.