Partnerships and cohabitation — European Union

The twin of the matrimonial property regulation designates the law governing the property consequences of a registered partnership and organises recognition of decisions.

The legal framework

Regulation (EU) 2016/1104, applicable since 29 January 2019 in the states taking part in the enhanced cooperation, determines the law applicable to the property consequences of registered partnerships. Absent a choice, it is the law of the state under whose law the partnership was created. Partners may choose the law of their residence, of their nationality or of the state of registration. The existence of the institution itself remains national, and several states do not have it.

The default connection to the state of registration is logical: without it, a partnership created in a state that recognises it could be governed by a law that does not.

The Regulation governs property consequences only. It does not oblige any state to create a registered partnership or to treat one concluded elsewhere as equivalent to marriage.

Key points

InstrumentRegulation (EU) 2016/1104, applicable since 29 January 2019
Default lawThat of the state where the partnership was registered
ChoiceResidence, nationality or state of registration
ExistenceThe institution itself remains a national matter
LimitSeveral states have no registered partnership

In practice

Cost and coverage

Consulting Union law costs nothing: EUR-Lex publishes every text free of charge, in twenty-four official languages and in consolidated form. Any cost lies in legal advice, where the interaction between the European text and the national transposing statute becomes decisive — common with directives, rare with regulations.

Where to go

Worth knowing

Do not confuse the European Union with the Council of Europe: the European Convention on Human Rights and the Strasbourg Court are not EU bodies and cover forty-six states, including Switzerland and the United Kingdom.

Frequently asked questions

Which law governs our partnership?

The one you chose; failing that, the law of the state where it was registered.

Does it force recognition of the partnership?

No. It deals with property consequences; existence and recognition remain national matters.

Can we choose another law?

Yes: habitual residence, the nationality of either partner, or the state of registration.

Are all member states bound?

No, only those taking part in the enhanced cooperation.

Official sources and links

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Page checked in September 2026. The instruments cited can change: if in doubt, confirm with the official source given.

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