Inheritance Rights for Unmarried Partners in Spain: What Expats Must Know (2026)

You have built a life together in Spain. You share a home, a bank account, perhaps a business. You have been together for years — maybe decades. In the eyes of your friends, your family, and your community, you are a couple in every sense of the word.

But in the eyes of Spanish inheritance law, you are strangers.

This is the reality that tens of thousands of expat couples in Spain face without knowing it. When one partner dies without a valid will, the surviving partner receives nothing automatically — not the shared home, not the savings, not the car in the driveway. Everything passes to blood relatives: children, parents, siblings. In their absence, the Spanish state.

This guide explains exactly what the law says, where limited regional exceptions exist, how the tax system punishes unmarried couples further, and — most importantly — what you can do right now to protect the person you share your life with.

Spanish Law Baseline: Unmarried Partners Have No Automatic Inheritance Rights

The Código Civil español (Spanish Civil Code) defines the order of intestate succession — who inherits when someone dies without a will. That order is:

  1. Descendants (children, grandchildren)
  2. Ascendants (parents, grandparents)
  3. Collateral relatives (siblings, nieces, nephews)
  4. The Spanish state

A surviving spouse appears at the third level — but only as a usufructuary (holder of a lifetime right of use), not as a full owner. And that limited protection applies only to legally married spouses.

A partner in a de facto relationship — a pareja de hecho — does not appear anywhere in the Civil Code's intestate succession order.

This is not an oversight. It is a deliberate feature of Spanish law that has not been reformed at the national level, despite repeated calls to do so. Until it is reformed, the rule stands: no marriage, no automatic inheritance.

For expat couples, this gap is especially dangerous. Many come from countries — the UK, Germany, the Netherlands, Scandinavia — where cohabiting partners have meaningful legal protections after years of living together. They arrive in Spain and assume the same framework applies. It does not.

Regional Exceptions: Catalonia, Navarra, Basque Country, Balearics

Spain is not a single legal monolith. Several autonomous communities have their own civil law traditions (derecho foral) that can offer limited protections to registered unmarried couples. These are not complete solutions, but they matter.

Catalonia (Catalunya)

Catalan law (Codi Civil de Catalunya) is the most progressive in Spain on this issue. A registered pareja de hecho in Catalonia is entitled to inherit personal effects, household contents, and a right of usufruct over the habitual residence — even without a will. Requirements: the couple must be registered and have lived together for at least two years (or have a common child).

Navarra (Comunidad Foral de Navarra)

The Compilación Foral de Navarra provides inheritance rights for registered cohabiting couples equivalent to those of a spouse, provided they have lived together for at least one year and are registered in the relevant local registry.

Basque Country (País Vasco)

The Ley de Derecho Civil Vasco grants registered parejas de hecho usufruct rights over the habitual residence and some succession rights, though these are narrower than those available to married couples.

Balearic Islands (Illes Balears)

Balearic law also recognises limited rights for registered unmarried couples, including rights to the family home under certain conditions.

The Catch

These regional protections only apply if:

If you live in Madrid, Valencia, Andalusia, the Canary Islands, or any other region governed by the common Civil Code — you have no automatic rights whatsoever, regardless of how long you have been together.

Do not assume regional law protects you without verifying your specific situation with a qualified notary.

The Tax Trap: Unmarried Partners Pay the Highest Succession Tax

Even if an unmarried partner does receive an inheritance — because there is a will — the Spanish succession tax system imposes an additional penalty.

Under the Ley 29/1987 del Impuesto sobre Sucesiones y Donaciones (ISD), heirs are divided into groups based on their relationship to the deceased:

Group Relationship Reduction available
I Children under 21 Up to €47,858 + age reduction
II Children 21+, spouse, parents Up to €15,956
III Extended family (siblings, nieces, nephews, in-laws) Up to €7,993
IV All others, including unmarried partners No reduction

An unmarried partner falls into Group IV — the same group as a stranger. There is no personal allowance. The full value of the inheritance is taxed from euro one.

Worse, Group IV heirs are subject to the highest tax multipliers. Depending on the value of the estate and any pre-existing wealth held by the heir, the applicable multiplier can reach up to 2.4 times the base tax rate — which itself can reach 34%. In the most severe scenarios, effective tax rates for Group IV heirs can approach 81.6% of the inherited value.

This means that even if you write a will leaving everything to your partner, they may face a tax bill so large that they are forced to sell the shared home just to pay it.

Important note: Several autonomous communities (Madrid, Andalusia, Valencia, and others) have introduced significant regional reductions that can dramatically lower the effective tax burden. Some regions offer near-total exemptions — but these apply primarily to Group I and II heirs. Group IV heirs rarely benefit. Check the regional rules applicable to your habitual residence.

For a full breakdown, see our guide on succession tax in Spain.

EU Regulation 650/2012: It Determines Which Law Applies, Not What You Inherit

Many expats have heard of EU Succession Regulation 650/2012 (also known as the Brussels IV Regulation) and assume it provides cross-border inheritance protections. It does — but not in the way most people think.

Regulation 650/2012 does not create any inheritance rights. It does not override national law. What it does is establish a clear rule for which country's succession law governs an estate when someone dies having assets or connections in multiple EU member states.

The default rule: the law of the country where the deceased was habitually resident at the time of death applies.

For most expats living full-time in Spain, this means Spanish law governs their estate — including Spain's rules on unmarried partners.

The Regulation does allow individuals to make a choice of law declaration, electing the succession law of their nationality instead. A British-German couple could each elect German law if they hold German nationality, potentially accessing more favourable rules for surviving partners.

However, making a valid choice of law election requires specific formal steps — typically a declaration in your will — and the chosen law must be the law of a nationality you hold. It will not apply to Spanish real estate for certain procedural purposes.

This is a complex area that requires specialist legal advice. Do not rely on Regulation 650/2012 as a solution without consulting a cross-border inheritance lawyer.

The Will Solution: How to Protect Your Partner

The single most effective step an unmarried couple in Spain can take is this: each partner makes a Spanish will, leaving their estate (or the largest possible portion of it) to the other.

A Spanish will (testamento) is executed before a notary and registered in the Registro General de Actos de Última Voluntad (the national registry of wills). It overrides intestate succession rules — meaning your partner, not your blood relatives, receives what you have specified.

Key points:

Forced heirs (legitimarios): Spanish law protects certain blood relatives — specifically, children — with a mandatory inheritance share called the legítima. You cannot disinherit your children entirely under Spanish law. The legítima for one child is one third of the estate; for two or more children, it is two thirds (divided among them). This means that if you have children, you can only freely leave one third of your estate (the tercio de libre disposición) to whoever you choose — including an unmarried partner.

If you have no children and no living parents: You have complete testamentary freedom. You can leave your entire estate to your partner.

If you are a foreign national: You may be able to elect the law of your nationality under EU Regulation 650/2012, which may give you more freedom to designate your partner as full heir. Discuss this with a notary who specialises in cross-border estates.

For practical guidance on the process, see our full guide on making a will in Spain.

Usufruct vs. Full Ownership: Practical Options in a Spanish Will

When leaving an inheritance to an unmarried partner, you have two main options:

Full Ownership (Plena Propiedad)

You leave the asset — property, savings, investments — outright to your partner. They become the legal owner. This is the simplest approach and gives your partner maximum security and flexibility.

Limitation: If you have children from a previous relationship, leaving property outright to a new partner can create family conflicts and may conflict with the legítima.

Usufruct (Derecho de Usufructo)

You leave your children (or other heirs) the bare ownership (nuda propiedad) of the property, but grant your surviving partner the right of usufruct — the right to live in the property and use it for the rest of their life, or for a specified period.

Advantage: This protects both your partner (who can remain in the home) and your children (who retain ownership rights that fully vest on the usufructuary's death).

Limitation: The usufructuary cannot sell the property without the agreement of the naked owners. It can create practical complications.

The right structure depends entirely on your family situation, nationality, and the nature of your assets. A Spanish notary can draft the specific clauses required.

Joint Property (Pro Indiviso): Does It Help?

Some couples believe that owning property jointly — as co-owners in a pro indiviso arrangement — solves the inheritance problem. It does not, fully.

When you own a property jointly, each of you owns a specific share (typically 50%). If one partner dies, their share passes according to succession rules — not automatically to the survivor. Without a will, that share goes to blood relatives. With a will, it passes as directed.

Joint ownership does mean the survivor retains their own 50% share unaffected. But they do not automatically acquire the deceased's 50% simply by virtue of joint ownership. Spain does not have a right of survivorship equivalent to the joint tenancy doctrine in English common law.

Joint ownership can be part of a strategy, but it is not a substitute for a will.

Life Insurance as a Complementary Tool

A Spanish life insurance policy (seguro de vida) can be an important complement to a will — particularly because life insurance proceeds pass outside the estate and are not subject to the succession tax multipliers in the same way.

The policyholder designates a beneficiary. On death, the insurer pays the sum assured directly to the designated beneficiary. The beneficiary does not need to wait for probate (the Spanish sucesión process can take months or even years). They receive the funds directly and relatively quickly.

Life insurance proceeds are still subject to ISD (succession tax) in most regions, but the calculation is different, and regional exemptions may apply. In some regions — Madrid being the most notable example — life insurance paid to a cohabiting partner may qualify for significant reductions.

Life insurance is particularly useful for covering two specific risks:

  1. The inheritance tax bill your partner will face on the rest of the estate
  2. Providing liquidity while the succession process completes

For more detail, see our guide on life insurance in Spain.

Pareja de Hecho Registration: Does It Help With Inheritance?

A pareja de hecho is a formal registered cohabiting partnership. Registration is done at the municipal level (registro municipal de parejas de hecho) or at the autonomous community registry, depending on the region.

At the national level: Registration as a pareja de hecho has no effect on inheritance rights under the Código Civil. It does not make your partner a legal heir under national intestate succession rules.

At the regional level: As discussed above, registration is a prerequisite for accessing the limited protections available in Catalonia, Navarra, the Basque Country, and the Balearics. Without registration, even those regional protections do not apply.

For other purposes: Registration can be valuable for access to a partner's pension rights (pensión de viudedad — widower/widow's pension under certain conditions), healthcare access, and tax benefits during lifetime. It is worth doing even if its inheritance effect in your region is limited.

Do not assume registration alone solves the inheritance problem. In most of Spain, it does not. A will remains essential.

Frequently Asked Questions

Q: My partner and I have lived together in Spain for 12 years. Do we have common-law marriage rights?

No. Spain does not recognise common-law marriage as a legal status. Length of cohabitation — even decades — does not create automatic inheritance rights under Spanish national law. Without a will, your partner inherits nothing.

Q: We registered as parejas de hecho in Madrid. Does that protect us?

The Community of Madrid is governed by the common Civil Code. Registration as a pareja de hecho in Madrid does not create inheritance rights. A will is necessary.

Q: My partner has children from a previous relationship. Can they still leave me anything?

Yes — but not everything. Spanish law protects children with a forced share (legítima) of the estate. Your partner can leave you the portion of their estate that is not reserved for their children (the tercio de libre disposición, or one third). They can also grant you usufruct over the entire estate, even if the bare ownership passes to their children.

Q: Can we each elect the law of our home country to avoid these restrictions?

Possibly. Under EU Regulation 650/2012, you can elect the succession law of your nationality. This may give you more freedom in some cases — for example, German or French law may offer more flexibility for designating an unmarried partner as heir. However, this requires a specific clause in your will and specialist legal advice on cross-border succession.

Q: We own our apartment in Spain jointly. If one of us dies, does the other automatically own the whole flat?

No. Each of you owns your share (typically 50%). The deceased's share passes according to their will — or to blood relatives if there is no will. Joint ownership does not create a right of survivorship in Spain. You both need wills.

Conclusion: Do Not Leave Your Partner Unprotected

Spanish law is clear: unmarried partners have no automatic inheritance rights under national law. The consequences of doing nothing are severe — a surviving partner can lose their home, their savings, and face months or years of legal uncertainty during an already devastating time.

The solution is straightforward, but it requires action:

  1. Make a Spanish will — both of you, separately, before a Spanish notary. Do this as a matter of priority.
  2. Understand the tax implications for your region and consider how to mitigate them.
  3. Explore life insurance as a tool for liquidity and tax coverage.
  4. Register as parejas de hecho if you are in a region where it provides meaningful protection.
  5. Consider a choice of law election under EU Regulation 650/2012 if your nationality law is more favourable.

For a broader framework on how to structure your estate as an expat in Spain, see our guide on estate planning for expats in Spain.

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Published: 2026. References: Código Civil español · Ley 29/1987 del Impuesto sobre Sucesiones y Donaciones · Reglamento UE 650/2012 · Codi Civil de Catalunya · Compilación Foral de Navarra · Ley de Derecho Civil Vasco · Compilació del Dret Civil de les Illes Balears. This article is for informational purposes only and does not constitute legal advice. Consult a qualified Spanish notary or cross-border inheritance lawyer for your specific situation.