Posthumous Declaration of Stable Union: Rights of the Surviving Partner

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

A posthumous declaration of stable union (declaração de união estável post mortem) is the lawsuit that establishes that a cohabiting relationship existed after one of the partners has died, securing the survivor’s rights to an inheritance and to a share of the couple’s jointly acquired property (meação).

What the lawsuit is and what it is for

A posthumous declaration of stable union is a lawsuit filed by the surviving partner to obtain formal recognition of the relationship with the deceased. This recognition is necessary for the survivor to exercise inheritance, social security, and property rights.

Unlike marriage, which is formally registered with a notary’s office, a stable union (união estável, a Brazilian form of recognized domestic partnership) can exist without any document at all. When there is no public deed of stable union and one of the partners dies, the survivor must prove in court that the relationship existed.

The main purpose is to qualify the surviving partner to take part in the deceased’s probate proceeding (inventário), securing the right to meação (half of the property acquired for value during the relationship) and to the inheritance, under the rules of art. 1.790 of the Civil Code (as modified by RE 878.694/STF).

Requirements of the stable union you must prove

Art. 1.723 of the Civil Code defines a stable union as a public, continuous, and lasting cohabitation established with the aim of forming a family. These requirements must be proven in the posthumous recognition lawsuit.

“Public” means the relationship was known to family, friends, neighbors, and the community. “Continuous” means the couple lived together without interruption, with no lengthy separations that would undermine the union. “Lasting” means enough time to show stability (the law sets no fixed minimum period).

The aim of forming a family is the central element. There must be a shared life, mutual support, and a common life plan. Dating, even for a long time, or an occasional relationship is not a stable union if the intent to form a family is missing.

This recognition is necessary for the survivor to exercise inheritance, social security, and property rights.

Legal impediments to marriage prevent the recognition of a stable union (art. 1.723, § 1º, of the Civil Code), with one exception: de facto separation. A person who is married but de facto separated can form a valid stable union with another partner.

Evidence of the stable union

Evidence is the most challenging part of a posthumous lawsuit, because one of the two people in the relationship can no longer testify. Admissible evidence includes documents, witnesses, photographs, social media records, correspondence, and proof of living together.

Relevant documents include: a lease contract in both names, utility bills at the same address, a health plan listing one partner as a dependent, a joint income tax return, a joint bank account, children in common, and the children’s birth certificates naming both parents.

Witnesses who knew the couple (relatives, neighbors, friends, coworkers) are essential evidence. They must testify about how publicly the couple lived as partners, whether they shared a home, how they treated each other as a couple, and how long the relationship lasted.

Procedure and jurisdiction

The lawsuit is filed in the family court (vara de família) for the deceased’s last place of residence. The surviving partner is the plaintiff, and the deceased’s heirs (children, parents, siblings) are summoned as defendants, because recognizing the stable union directly affects their inheritance rights.

If the heirs agree that the stable union existed, the case can proceed as a voluntary jurisdiction matter, which is faster. If they contest it, the case follows the ordinary procedure, with a full evidentiary phase.

A judgment recognizing the stable union takes effect retroactively to the date the relationship began, as determined by the judge. Once the judgment is final and no longer subject to appeal, the surviving partner can join the probate proceeding and exercise the rights to meação and to the inheritance.

Rights of a recognized partner

In its ruling in RE 878.694, the STF (Brazil’s Supreme Federal Court) put the partner on the same footing as the spouse for purposes of inheritance rights. The surviving partner is entitled to meação (half of the property acquired for value during the relationship) and competes for the inheritance of the deceased’s separate property on the same terms as a spouse.

Besides property rights, recognition entitles the partner to a survivor’s pension (pensão por morte) from the INSS (Brazil’s National Social Security Institute) or from the social security system that covers the deceased public servant. To qualify for the pension, the stable union must be proven to the social security agency or, if the agency refuses, in court.

The surviving partner also has the right of habitation (direito real de habitação) over the property used as the family home, on the same terms as a spouse, for as long as the partner lives and does not enter a new union.

Frequently Asked Questions

Can a stable union be recognized even if the couple did not live together?

Living together is not a mandatory requirement of a stable union, according to the STF and the STJ (Brazil’s Superior Court of Justice). However, without a shared home, it is harder to prove the other requirements (public nature, continuity, intent to form a family). Couples who kept separate residences must present strong evidence that, even so, they shared a life and a common family plan.

What is the deadline to file a posthumous recognition lawsuit?

There is no statute of limitations for a declaratory action to recognize a stable union, because it is a declaratory action about legal status (and so is not subject to limitation). Still, it is advisable to file as soon as possible, because delay can make evidence harder to gather (witnesses may die, documents may be lost) and can postpone your admission to the probate proceeding.

If the deceased was married, can a stable union still be recognized?

Yes, as long as the deceased was de facto separated from the spouse. Art. 1.723, § 1º, of the Civil Code lifts the impediments to marriage when a person is married but de facto separated. In that case, the partner can have the stable union recognized and take part in the probate proceeding, competing with the formal spouse. Proof of the de facto separation is essential.

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