Prenups in Spain for International Couples: Choosing Your Property Regime

Here is a fact that surprises almost every international couple we meet: you already have a matrimonial property regime. Perhaps you never signed anything, never discussed it, never heard the phrase — but the moment you married, some country's rules quietly attached themselves to your money, your salaries, your debts and the home you are about to buy in the Canaries. The only question is whether you know which rules — and whether they are the ones you would have chosen.

For mixed-nationality couples, couples married abroad, and couples who have moved between countries, the answer is rarely obvious. This is the map: what a property regime is, how the European rules decide which law governs yours, and how a short notarial document — the capitulaciones matrimoniales, Spain's version of the prenup — lets you decide for yourselves.

Everyone is married under a regime

A matrimonial property regime answers the unglamorous questions of married life: is your salary yours or ours? Who owes the debt one of you signed? What exactly gets divided if the marriage ends, and what belongs to the survivor before inheritance rules even start?

Spanish law offers several models, and — a detail that surprises even Spaniards — the default depends on the territory:

• Sociedad de gananciales — the community model, and the default in most of Spain, the Canary Islands included: what either spouse earns during the marriage is, as a rule, common property; what each owned before, plus gifts and inheritances, stays private.
• Separación de bienes — the separation model: each spouse owns and administers what they earn and acquire. It is the default in Catalonia and the Balearic Islands, and the chosen regime of many business owners elsewhere, because it keeps one spouse's professional risk away from the family's assets.
• Participación — a rarely used hybrid: separation while the marriage lasts, with a share in the other's gains when it ends.

None of these is «better». They distribute risk, independence and protection differently — which is exactly why the choice deserves to be made consciously rather than inherited from a default.

Which country's rules govern yours

This is where international couples need the map, because before asking «gananciales or separación?» there is an earlier question: is it even Spanish law that applies to you?

For couples married on or after 29 January 2019, the answer comes from EU Regulation 2016/1103 on matrimonial property regimes, which Spain applies:

• You may choose the applicable law — the law of the habitual residence or of the nationality of either spouse at the time of choosing. A German-Italian couple living in Tenerife can pick Spanish, German or Italian law.
• If you choose nothing, the Regulation assigns a law through a default cascade headed by your first common habitual residence after the wedding — a fact many couples could not name with confidence years later.

Two nuances matter enormously in practice:

• Married before 2019? The Regulation's applicable-law rules do not reach back. Your regime is governed by the earlier conflict rules — in Spain, article 9.2 of the Civil Code, which looks at common nationality at the time of marriage, then at certain pre-wedding choices, then at the first common habitual residence. Different rules, potentially a different answer.
• The door is open anyway. Whatever the date of your wedding, the Regulation lets couples choose the applicable law now — a choice made today, before a notary, can replace years of uncertainty with one clear sentence. For many couples who married abroad long ago, this is the single most useful thing to know on this page.

One honest caveat: not every EU country takes part in the Regulation (it was adopted by a group of Member States, Spain among them), and the United Kingdom, Ireland and Denmark are outside it. A British couple's position may look different from London than from Santa Cruz — cross-border couples should have the two perspectives checked together.

Capitulaciones: how the choosing is done

The Spanish vehicle for all of this is the escritura de capitulaciones matrimoniales — a notarial deed in which the spouses (or spouses-to-be) set their regime, choose the applicable law where the European rules allow it, and record any other property agreements they wish to make.

The mechanics, from the Civil Code:

• Notarial deed or nothing. Article 1327 makes the public deed a condition of validity — a private document, however solemnly signed, is not capitulaciones.
• Before or after the wedding. You can sign capitulaciones as an engaged couple or twenty years into the marriage; the regime can also be changed during the marriage the same way.
• Pre-wedding deeds have a shelf life. Under article 1334, capitulaciones signed in contemplation of a marriage lapse if the wedding does not follow within one year.
• Third parties are protected. A change of regime never prejudices rights already acquired by third parties (article 1317) — you cannot capitulate your way out of yesterday's debts.
• Publicity makes it bite. The capitulaciones are noted on the marriage record in the Civil Registry, and where they affect real estate, in the Property Registry — that is what makes the regime effective against banks and creditors, not just between the two of you.

When it is worth doing

Some situations where we routinely advise international couples to put the regime on paper:

• You are buying property in Spain. The regime decides how the purchase is registered, what each spouse can later sell or mortgage, and what happens to the home on divorce or death. Clarity before the notary appointment beats litigation after it.
• One of you runs a business. Separación de bienes is the classic shield: the entrepreneur's professional risk stops at their own assets. It must be properly registered to work against creditors — and it cannot rescue debts already born.
• You married abroad and have moved since. Couples who married in one country, lived in another and settled in a third often genuinely do not know which law governs their money. A choice-of-law in capitulaciones ends the doubt.
• Unequal patrimonies or second marriages. Where children from earlier relationships or family assets are involved, the property regime and the will need to be designed together — we will look at the Spanish will for foreign residents later this month.
• The bank asks. Mortgage lenders and notaries routinely need to know your regime; «we are not sure» is an answer that costs time and sometimes money.

What the notary appointment looks like

Less dramatic than the reputation of «prenups» suggests. With advice taken and the decision made, the deed itself is a single notarial appointment: identification (passports and, for residents, NIE), civil-status details, the marriage certificate for married couples — foreign documents apostilled and translated where needed — and the text of the agreements. Non-Spanish speakers sign with a translation or interpreter so consent is informed. A power of attorney can stand in if one spouse cannot attend.

The cost is modest for what it settles, and the effect is immediate between the spouses, with registration handling the effect against everyone else.

A checklist for international couples

• Work out — with dates — where each of you lived and what nationality each held when you married: that is what the default rules feed on.
• If you married before 2019, do not assume the new European rules chose your law; the older rules apply until you choose.
• If you cannot say with certainty which regime governs you today, treat that as the finding — uncertainty at divorce or death is expensive.
• Deciding to act? The route is one: capitulaciones before a notary, with the choice of law and regime spelled out.
• Buying property or lending between spouses? Put the regime in order first, then sign.
• Married under a foreign prenup? Have it reviewed against the Spanish position — recognition is not automatic in every detail.
• Remember the limits: no capitulaciones can harm rights third parties already hold.

A property regime is chosen once, calmly, before a notary — or discovered later, expensively, in court.

Our family team designs capitulaciones and choice-of-law agreements for international couples across Tenerife and Fuerteventura — in your language, coordinated with your home country's rules where needed. Read more about how we work in family law, see our guide to international divorce in Spain, or book a consultation at our Costa Adeje or Corralejo offices.

Common questions

We married abroad years ago and never signed anything. Which regime do we have?

One assigned by default rules — which ones depends chiefly on when you married. From 29 January 2019 the EU Regulation's cascade applies, headed by your first common habitual residence after the wedding; earlier marriages follow the older conflict rules, such as article 9.2 of the Spanish Civil Code. If you cannot answer confidently, that is precisely the sign to have it examined — and, if convenient, to choose expressly now.

Can we change our regime after marrying?

Yes. Capitulaciones can be signed — and changed — at any time during the marriage, always in a notarial deed. The change works from then on and never prejudices rights that third parties, such as existing creditors, have already acquired.

Is our foreign prenup valid in Spain?

Possibly, in whole or in part — it depends on the law that governs your regime, on the agreement's content and on formal requirements. Spanish practice examines foreign marital agreements case by case; many couples choose to restate the essentials in Spanish capitulaciones so that notaries, registries and banks here can work with one clear document.

Which is better, gananciales or separación de bienes?

Neither, in the abstract. Community regimes pool the marriage's gains; separation keeps risk and property individual — which protects a business owner's spouse, but can leave a lower-earning spouse with less at the end. The right answer depends on your assets, work and plans, which is what the advice stage is for.

Do we both need to be in Spain to sign?

No. Either spouse can grant a power of attorney — before a Spanish notary, at a consulate, or before a foreign notary with apostille and translation — and be represented at the signing.

This article is general information about Spanish and EU law as it stands at the date of publication, not legal advice for your specific situation. Which law governs a particular marriage can only be confirmed after reviewing its dates, nationalities and residences.