Matrimonial Property Regimes in Portugal for International Couples

Quick answer

If Portuguese law governs your matrimonial property regime and you do not validly choose another regime before marriage, the default is comunhão de adquiridos, usually translated as community of acquired property.

Portugal also recognises separação de bens, separation of property, comunhão geral de bens, general community of property, and customised arrangements within legal limits.

For an international couple, however, the first question is not always "Which Portuguese regime do we prefer?" It is which country's law governs the matrimonial property regime at all.

That question should be resolved before you make decisions about a prenup, a Portuguese property purchase, a mortgage or the ownership of a business.

Why the regime matters

Your matrimonial property regime can affect:

• whether an asset acquired during marriage is common or separate
• whether property owned before marriage remains separate
• how gifts and inheritances are classified
• whether one spouse can deal with certain assets alone
• which spouse is exposed to particular debts
• what happens to the marital estate on divorce
• how property and succession planning interact on death

It is therefore much more than a line on the marriage certificate.

First question for an international couple: which law applies?

Two people can marry in Portugal without Portuguese matrimonial-property law necessarily governing every property consequence of the marriage.

For international couples within the scope of Regulation (EU) 2016/1103, the spouses can make a formal choice of applicable law within the options allowed by the Regulation.

Without a valid choice, the Regulation uses a hierarchy. The starting point is generally the spouses' first common habitual residence after marriage. If that does not resolve the issue, common nationality and then the closest connection become relevant under the Regulation.

This matters because an international couple can:

• marry in Portugal
• live in another country
• hold Portuguese property
• have different nationalities
• later move again

The place of the wedding is therefore not a safe shortcut for deciding the property regime.

If your marriage or choice of law predates the Regulation's temporal scope, a different conflict-of-laws analysis may be required.

If Portuguese law applies: community of acquired property

`Comunhão de adquiridos` is the Portuguese default when no valid prenuptial agreement selects another regime, except where the law imposes separation of property.

The basic model separates three things.

Property you already owned

Property owned before the marriage is generally separate property.

Gifts and inheritances

Assets received during the marriage by inheritance or gift are generally separate property.

Property acquired during marriage

Property acquired for value during the marriage generally enters the common estate unless the law classifies it differently.

The spouses' work income also forms part of the common estate.

This is why "the deed is only in my name" or "the salary went into my bank account" does not by itself answer every ownership question.

Separation of property

Under `separação de bens`, each spouse keeps ownership and enjoyment of their present and future property.

There is no matrimonial common estate merely because the couple is married.

The spouses can still buy an asset together. In that case they hold it in co-ownership according to the legal title rather than through a matrimonial community.

Separation of property also changes parts of the debt and consent analysis, but it does not remove every protection attached to marriage.

The family home is the clearest example. Portuguese law requires both spouses' consent for important acts affecting the family home even under separation of property.

General community of property

Under `comunhão geral de bens`, the common estate is broader and generally includes present and future assets of the spouses, subject to statutory exceptions.

It should not be summarised as "literally everything becomes 50/50". Portuguese law excludes specific categories from the community and the legal structure of matrimonial community is different from ordinary co-ownership of a particular asset.

There are also situations in which general community cannot validly be chosen.

A customised property regime

Portuguese law gives future spouses substantial freedom to structure a matrimonial property regime in a prenuptial agreement, within legal limits.

That does not mean every private clause is valid.

The Civil Code restricts matters that can be changed by agreement, including core spousal duties and statutory rules on administration of marital property.

For an international couple with businesses, assets in several countries or children from previous relationships, a customised agreement can require both Portuguese family-law analysis and cross-border private-international-law analysis.

When separation of property is mandatory

Portuguese law imposes separation of property in specific situations.

One of the most relevant is a marriage involving a person who has reached the statutory age threshold of 60.

Another concerns marriage celebrated without the required preliminary marriage process.

These are statutory rules, not simply personal choices.

Can we change the regime after marriage?

Under Portuguese law, the basic rule is no.

The prenuptial agreement and the resulting matrimonial property regime are generally immutable after the marriage, except for statutory exceptions.

That is why property planning belongs before the marriage, not after the couple has already signed a property purchase, taken business debt or accumulated assets in several countries.

What about Portuguese real estate?

Before a married couple buys Portuguese property, four questions should be answered:

The title document is important, but it is not the only layer.

What about debts?

Marriage does not make every debt of one spouse a debt of the other.

Portuguese law distinguishes between debts for which both spouses are responsible and debts that remain the responsibility of one spouse.

The result depends on why the debt was incurred, whether both spouses agreed to it, whether it served normal family expenses or common benefit, whether business activity is involved and which matrimonial regime applies.

Read our separate guide on spouse debt liability for the full framework.

Are You Responsible for Your Spouse's Debts in Portugal?

Should we make a prenup?

A prenup is the key Portuguese tool for choosing a different matrimonial property regime before marriage and for documenting an agreed property structure within the limits of the law.

For an international couple, it can also sit alongside a separate choice-of-law analysis under EU private international law.

Read:

Prenuptial agreements in Portugal

Already planning a property purchase?

Read:

Buying property in Portugal as a married couple

Go deeper on specific assets

The property regime is only the starting point. The next question is how it applies to a particular home, inheritance or business interest.

• Can One Spouse Sell or Mortgage Property in Portugal Without the Other?
• What Happens to Property You Owned Before Marriage in Portugal?
• Inheritance and Gifts During Marriage in Portugal: Who Owns Them?
• Marriage and Business Ownership in Portugal: Company Shares and Spouse Rights

When professional review is useful

A review is particularly useful when:

• the spouses have different nationalities
• the couple lives outside Portugal
• either spouse owns property before marriage
• one or both spouses own a company
• there are substantial investments or debts
• there are children from an earlier relationship
• Portuguese property will be purchased
• the couple has assets in several countries
• a foreign prenup already exists