Stable Union
Learn how to have a stable union formed in Brazil, or a de facto union lived in Portugal, recognized in Portugal, and what effects it has. Contact us.
Those living in a stable union in Brazil whose relationship has already been recognized judicially or extrajudicially may request the review of that recognition in Portugal. To do so, it is mandatory to bring an action for Recognition (Review) of a Foreign Judgment before the competent Court of Appeal (Tribunal da Relação), through a lawyer duly registered with the Portuguese Bar Association (Ordem dos Advogados).
Those living in a de facto union in Portugal may, as a rule, prove it by a statement from the parish council (Junta de Freguesia) (Art. 2-A of Law 7/2001 (Lei)). For citizenship purposes, however, a court decision of recognition is required, obtained in a declaratory action before the competent civil court. Notably, unlike Brazil, where there is no minimum period of cohabitation, in Portugal a de facto union requires the parties to have lived in conditions similar to those of spouses for more than two years (Art. 1(2) of Law 7/2001). For the acquisition of citizenship, the law requires more than three years of de facto union with a Portuguese citizen (Art. 3(3) of the Nationality Act (Lei da Nacionalidade), as amended by Organic Law 1/2026 (Lei Orgânica)).
Recognition of a stable union in Portugal brings numerous benefits, such as the possibility of acquiring Portuguese citizenship (once the legal requirements are met), the possibility of family reunification, joint taxation for IRS purposes, the benefit of a legal regime equivalent to that applicable to married persons bound by an employment contract, protection of the family home, and social protection in the event of the death of the beneficiary, under the general social security scheme or special schemes, among others.
We at Sene & Araújo Advogados are here to answer your questions and help you with this next step!
Other services in this area

Wills
Forms, forced share, and applicable law in both countries.
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Declaration of heirs
Notary's office or Inheritance Desk, documents, and Stamp Duty.
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Assets in Brazil
Selling, inheriting, and managing assets in Brazil while living in Portugal.
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Marriage and property regime
Applicable law, prenuptial agreement, and effects on inheritance.
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Child custody
Relocation to another country, travel authorization, and the Hague Convention.
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International child and spousal support
Setting, collecting, and modifying support between Brazil and Portugal.
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STJ recognition
Portuguese judgments given effect in Brazil.
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Tax residence
Definitive departure from Brazil, the 183-day rule, and double taxation.
Learn more →
INSS retirees
Brazilian pension received in Portugal: the agreement and taxation.
Learn more →Common questions
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Does a stable union recognized in Brazil have effects in Portugal?
It can, but the review of that recognition must be requested. Those living in a stable union recognized judicially or extrajudicially in Brazil must bring an action for Recognition (Review) of a Foreign Judgment before the competent Court of Appeal (Tribunal da Relação), through a lawyer registered with the Portuguese Bar Association (Ordem dos Advogados). The action is mandatory for this recognition.
How can a de facto union lived in Portugal be proven?
As a rule, a de facto union lived in Portugal may be proven by a statement from the parish council (Junta de Freguesia) (Art. 2-A of Law 7/2001 (Lei)). For citizenship purposes, however, a court decision of recognition is required, obtained in a declaratory action before the competent civil court.
How long must the parties have lived together for a de facto union in Portugal?
Unlike Brazil, where there is no minimum period of cohabitation, in Portugal a de facto union requires the parties to have lived in conditions similar to those of spouses for more than two years (Art. 1(2) of Law 7/2001). For the acquisition of citizenship, the law requires more than three years of de facto union with a Portuguese citizen.
What are the effects of recognition of a stable union in Portugal?
Among others:
- the possibility of acquiring citizenship, once the legal requirements are met;
- family reunification;
- joint taxation for IRS purposes;
- a regime equivalent to that of married persons in employment contract matters;
- protection of the family home;
- social protection in the event of the death of the beneficiary.
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