Separacion de Bienes in Spain: When It Applies and How to Choose It (2026)

Separación de bienes keeps each spouse's property and earnings entirely separate, with no automatic sharing when the marriage ends. Across most of Spain it is a regime spouses have to choose deliberately, but in Cataluña and the Balearic Islands it is what applies automatically when they choose nothing at all. This page covers both sides of that split.

Information last verified on 23 July 2026. This page provides general legal information about Spanish law and does not constitute legal advice in an individual case.

What separación de bienes means

Under separación de bienes, there is no shared pool of marital gains to split when the marriage ends. Each spouse keeps what they earn and own separately throughout the marriage, and each spouse is generally free to buy, sell, administer and enjoy their own property, without the other spouse's property being affected by those decisions.

The Balearic compilation states this operating principle explicitly, in terms that describe the same regime wherever it applies: under separación de bienes, each spouse is empowered to carry out acts or transactions of ownership, administration, enjoyment and disposal over their own property (art. 3.2 Compilación de Dret Civil de les Illes Balears), the practical opposite of a regime built around a shared pool of gains.

When it applies under the Código Civil

In the common-law regions governed directly by the Código Civil, separación de bienes is not the default, and it applies in three situations under art. 1435 CC: when the spouses have agreed to it directly, when they have signed capitulaciones matrimoniales ruling out sociedad de gananciales without specifying which regime replaces it, or when gananciales or the regimen de participación is dissolved during the marriage and the spouses do not substitute another regime by their own choice. Absent any of those, the marriage defaults into sociedad de gananciales instead (art. 1316 CC).

Setting it up: capitulaciones before a Notario

Choosing separación de bienes deliberately means signing capitulaciones matrimoniales, a formal marriage contract. Spouses can stipulate, modify or replace their economic regime, or add other related provisions, in capitulaciones executed either before or after the wedding (arts. 1325 y 1326 CC). To be valid, capitulaciones must be recorded in a public deed, an escritura publica, before a Notario (art. 1327 CC).

Because capitulaciones can be signed before or after the wedding, separación de bienes is not a decision a couple has to lock in on day one. A couple already married under sociedad de gananciales can later sign capitulaciones switching to separación de bienes, just as a couple who started under separación de bienes can switch the other way, always through the same public-deed formality.

The foral flip: Cataluña and Baleares

Two territories reverse the Código Civil's logic entirely. In Cataluña, if the spouses sign no capitols matrimonials, or their capitols are ineffective, the applicable regime is separación de bienes by default, not gananciales (art. 231-10 CCCat). The Balearic Islands work the same way: absent capitols formalized in a public deed, separación de bienes applies automatically (art. 3 Compilación de Dret Civil de les Illes Balears).

That means a couple who marries in Barcelona or Palma without ever visiting a Notario ends up under a different default regime than a couple who marries in Madrid or Sevilla under the same circumstances. Where a couple's vecindad civil ties them to Cataluña or Baleares, the default flips without either spouse having to actively choose separación de bienes; the passive route (signing nothing) produces the opposite outcome from the passive route in the rest of Spain.

Whether a broader set of foral territories, such as Navarra, Pais Vasco, Aragon or Galicia, share this same default has not been confirmed here and should be checked separately for each region before relying on it. Nothing in this page should be read as extending the Cataluña and Baleares findings to those other territories.

What it means in practice

Separación de bienes tends to matter most when one spouse runs a business, carries significant debt, or the couple wants a clean separation of finances from the outset. It does not affect child support or custody, which run on their own rules regardless of the marital property regime. The community of property page covers the opposite regime, sociedad de gananciales, and the inheritance section covers how a marital regime interacts with what happens to a spouse's estate.

This page is general legal information about Spanish law and does not constitute legal advice in an individual case. The controlling texts are the current versions in the BOE.