Stable Union in Brazil: How to Have It Recognized and Legally Dissolved

This page is a translation of the original Portuguese text, provided for convenience. It deals with Brazilian law. If there is any discrepancy, the Portuguese version prevails. Read the original in Portuguese

Brazil’s Federal Constitution recognizes the stable union (união estável) as a family entity, and the Civil Code governs it. It gives partners significant property, support, and inheritance rights. Formal recognition and an orderly dissolution depend on precise legal requirements, and failing to follow them can jeopardize the legal protection of both partners.

What legally defines a stable union

Article 1.723 of the Civil Code defines a stable union as a public, continuous, and lasting life together between two people, established with the aim of forming a family. The law sets no minimum length of time, and it does not require the partners to live under the same roof. What matters is the full set of circumstances: an openly acknowledged relationship before family and friends, mutual fidelity, mutual support, and a shared life plan.

The legal system also sets out negative conditions, however. People who are married and not de facto separated cannot enter into a valid stable union. The same is true of relatives in the direct line, collateral relatives up to the third degree, and in-laws in the direct line, under Article 1.521 of the Civil Code, which applies to stable unions by cross-reference. The absence of any impediment to marriage is therefore a condition for the validity of the relationship.

The distinction between a stable union and a serious dating relationship (namoro qualificado) is subtle, but it matters legally. Dating, even when it is long-lasting and involves occasional cohabitation, does not produce property or inheritance effects when there is no objectively demonstrated intent to form a family. Evidence such as a joint income tax return, a shared bank account, and mail addressed to the same home is commonly used to tell the two situations apart.

Ways to obtain recognition: contract, deed, and declaratory action

Partners can formalize a stable union voluntarily through a cohabitation contract (contrato de convivência). It may be a private or a public instrument, and it sets out the property regime the partners have chosen. Without a contract, the partial community property regime applies automatically, under Article 1.725 of the Civil Code. A contract lets the partners choose a different regime and include specific clauses on present and future assets.

A declaratory deed of stable union (escritura declaratória de união estável), drawn up at a notary office, is an effective means of formal recognition. It is not mandatory, but it makes the relationship easier to prove to banks, health plans, social security, and other bodies. The deed can declare either the existence or the end of the relationship, and its cost varies according to each state’s fee schedule.

When the partners disagree about whether the union exists or when it began, or when one of them has already died, court recognition becomes necessary. A declaratory action to recognize a stable union is heard by the competent Family Court (Vara de Família) and can reach back to the date the life together actually began. Once the judgment is final and can no longer be appealed, it produces retroactive constitutive effects, securing property and inheritance rights from the start of the recognized period.

Dissolution: out-of-court and court routes

When the partners agree, they can dissolve the union out of court through a public deed at a notary office, as long as the legal requirements are met. If there is an unborn child, or if the partners have minor or legally incapacitated children, you must show proof that all questions of custody, visitation, and support were previously resolved in court, and the deed must record that fact. The legal conditions relating to pregnancy must also be observed. The rules for consensual divorce apply, where appropriate, to the consensual termination of a stable union.

The dissolution deed must include the division of shared assets, the setting of any support between the former partners, and, if there is real estate, a reference to its registration. Once drawn up, the deed is sent to the Real Estate Registry for annotation when necessary, and it takes effect immediately between the parties. Court approval is not required, but the assistance of a lawyer is mandatory.

The lack of formalization does not extinguish the partners’ rights, but it shifts to them the burden of proving, by every means the law allows, that the relationship existed and how long it lasted.

If custody, visitation, and support for minor or legally incapacitated children have not yet been resolved, those questions must go to the courts before the deed is drawn up. The court route is also required when one of the parties lacks legal capacity, when the partners are in dispute over assets, or when one of them denies that the union existed. An action to dissolve a stable union can combine requests for division of assets, support, custody, and visitation arrangements.

Frequently Asked Questions

Does a stable union give you the right to inherit?

Yes. Under Article 1.790 of the Civil Code, the surviving partner is an heir and may share the estate with children and other heirs with respect to assets acquired for value during the union. The size of the share depends on how many heirs are competing for the estate and on where each asset came from. Separate property received by inheritance or gift during the relationship generally does not form part of the spousal share (meação), but it may be part of the estate, depending on the property regime in force.

Can you convert a stable union into a marriage?

Yes. Article 1.726 of the Civil Code allows conversion on a request that both partners submit to the judge, followed by entry in the Civil Registry. The procedure is simpler than a conventional marriage because it skips the formalities of the marriage application process. The partners may ask that the property effects reach back to the date the stable union began, as stated in a deed or recognized by a court, which preserves the continuity of rights already established.

How do you prove a stable union for social security and health plan purposes?

Proof of the stable union, by deed, contract, or court judgment, entitles the partner to be added as a dependent on a health plan and to be treated as a social security dependent before Brazil’s National Social Security Institute. For social security purposes, the dependency relationship can be shown with other documents, such as a joint income tax return, a shared bank account, or a work card (carteira de trabalho) showing the same address, even without a formal deed.

As informações deste artigo são de caráter informativo e não substituem consulta jurídica individualizada. Cada caso possui particularidades que exigem análise específica.