Marital Property Regimes in Brazil: The 4 Types, Explained

Attorney’s Quick Answer

Brazil recognizes four marital property regimes. When Brazilian domestic property rules apply and no mandatory exception intervenes, the default is — partial communion of property (comunhão parcial de bens), where acquisitions for value during the marriage are generally shared, subject to statutory exclusions. Pre-marriage assets and an individual inheritance generally stay separate.

To pick a different regime you sign a prenuptial agreement (pacto antenupcial) at a notary before the wedding.

The regime you choose affects both divorce and succession, but marital ownership and inheritance are separate calculations. Both matter to your marriage and your estate plan.

General legal information, not legal advice, and no attorney-client relationship is created by reading it. The right regime depends on your assets, family, and country ties; confirm your situation with counsel before you marry or sign.

Reviewed by Luciano Oliveira, Esq., LL.M., attorney admitted in Brazil, Texas, and California. Last reviewed: July 2026. Content updated: October 30, 2026.

The four regimes at a glance

If you are a US citizen considering marriage in Brazil, it’s important to understand the country’s matrimonial property regimes. These regimes determine how assets are divided between spouses during the marriage and in the event of a divorce. Here’s an easy-to-understand guide to help you navigate these options.

Types of Matrimonial Property Regimes

1. Partial Communion of Property (Comunhão Parcial de Bens)

This is the usual default regime under Brazilian law if no effective agreement is made and no mandatory rule applies. In this regime:

Shared Assets: Property acquired for value by either spouse during the marriage is generally shared, even if only one name appears on the title. Exceptions include properly evidenced replacement of separate assets; the source and legal basis of the acquisition matter.

Individual Assets: Assets acquired before the marriage and those received individually as gifts or inheritance during the marriage generally remain the individual property of the original owner. Gifts to both spouses, improvements, and income from separate assets can require a different analysis.

This regime aims to ensure fairness by sharing the fruits of the marriage equally between both partners.

2. Universal Communion of Property (Comunhão Universal de Bens)

Under this regime, assets owned by either spouse before the marriage and assets acquired during the marriage are generally shared, subject to the Civil Code’s exclusions. This means:

Shared Assets: The shared estate generally includes assets acquired prior to the marriage as well as later acquisitions.

Exceptions: Specific exclusions can apply if a gift or inheritance expressly restricts sharing. Article 1.668 also lists other exclusions; an express gift or will clause is not the only exception.

Choosing this regime requires a formal prenuptial agreement.

3. Separation of Property (Separação de Bens)

This regime must be chosen explicitly, except in certain cases where the law imposes it. Voluntary and mandatory separation are not interchangeable. Under voluntary full separation:

Individual Ownership: Each spouse retains ownership of their own property, both those acquired before and during the marriage.

Flexibility: Spouses can manage and dispose of their assets independently without requiring consent from the other.

This regime provides a clear division of property and is often preferred for those who wish to keep their financial affairs separate. Couples may still buy an asset jointly, and family obligations do not disappear.

Under mandatory separation, STJ case law permits sharing acquisitions for value where common effort is proved; it need not be exclusively financial.

For people over 70, STF Tema 1236 permits an express choice through a public deed. An existing marriage still requires the proper judicial alteration procedure, with future effects and protection of existing rights.

4. Final Participation in Acquisitions (Participação Final nos Aquestos)

This lesser-known regime combines elements of separation and communion.

During the marriage, each spouse owns their property individually. However, upon dissolution of the marriage:

Shared Assets: Each spouse is entitled to half of the qualifying net acquisitions for value during the marriage, calculated under the Civil Code. This is not simply half of every asset’s appreciation.

Individual Management: Spouses can acquire and manage their property during the marriage. Disposing of real estate requires separate attention to consent and any valid prenuptial authorization.

This regime can be useful for couples who want independence during the marriage but fairness upon its dissolution.

Which regime is right for you?

There is no single best answer — it depends on what you own, whether you have children from a prior relationship, whether either spouse owns a business, and where your assets and future ties sit.

Compare ownership during life, a possible separation, creditor exposure, and death separately. A regime that keeps property separate during marriage does not necessarily prevent the surviving spouse from inheriting. Because the choice is hard to undo, it is worth a conversation before you commit.

How to Choose and Formalize a Regime

Where the law permits a choice, to select a property regime other than the default partial communion:

Discuss Options: Talk with your partner about which regime best suits your needs and circumstances.

Prenuptial Agreement: If choosing a regime other than the default, you must formalize your choice with a prenuptial agreement. The Brazilian agreement must be executed as a public deed before marriage. Its effectiveness against third parties requires the appropriate Real Estate Registry registration; notarizing a signature is not equivalent to executing the public deed.

Legal Advice: Consider consulting a lawyer to ensure all legal formalities are properly handled and your agreement is enforceable.

The prenuptial agreement (pacto antenupcial)

A voluntarily chosen alternative regime is formalized through a prenuptial agreement, executed by public deed at a notary before the wedding. Mandatory separation arises by law, not because every couple signed a prenup.

There are limits on what it can contain — it can set your property regime and related financial arrangements, but it cannot, for example, waive child support or include terms against the law or public policy.

A foreign (for example, US) prenup must be assessed under the applicable law and Brazilian formal requirements. Apostille or legalization, sworn translation, and registration may be needed, but these steps do not cure an invalid agreement. Do not assume a new Brazilian pacto automatically replaces an existing foreign regime.

For the full detail, including cost, timing, and documents, see our dedicated guide to prenuptial agreements in Brazil.

Changing your regime after marriage

Already married and want to switch? It is possible, but not automatic: for a marriage, changing your regime requires a court petition, with both spouses’ consent, good cause, and protection of creditors and third parties.

For a stable union, a written agreement or notarial route may be available, but it does not automatically rewrite prior property rights or prejudice third parties. Confirm the applicable procedure and effective date.

Living together without marrying? União estável

A qualifying stable union (união estável) can carry significant property and inheritance consequences even without registration. It ordinarily defaults to partial communion unless a valid written agreement or mandatory rule applies. Living together alone does not settle whether the relationship legally qualifies.

If you live together here, this matters as much as the regime you would choose for a marriage. See our full guide to união estável in Brazil for how it works and how to protect your assets.

Selling or mortgaging property? You may need your spouse’s consent

A point that catches foreign owners off guard: in most regimes, a married person cannot sell or mortgage real estate without the other spouse’s consent (outorga conjugal) — even if only one name is on the title.

The main exception is the conventional full-separation regime, where each spouse can generally act alone over their own property.

Judicial authorization can substitute for consent in specified circumstances; final participation may also have a valid prenuptial authorization for separate real estate.

It is one more reason the regime you choose has practical, day-to-day consequences.

Are you responsible for your spouse’s debts?

Broadly, debts taken on for the benefit of the family can reach shared assets, while purely personal debts are meant to stay with the spouse who incurred them — but how cleanly that line holds depends on your regime and the facts. No regime is a blanket shield from debt. Household obligations, guarantees, joint borrowing, and the use of funds must be checked separately.

If either of you carries business or personal debt, factor it into the regime decision.

Married abroad, or with a foreign prenup?

If you married outside Brazil, which regime governs your assets here is a private-international-law question — LINDB article 7(4) points to the law of the country where both spouses were domiciled when marrying; if their domiciles differed, it points to the first marital domicile. A foreign prenuptial agreement must be assessed under the applicable law and Brazilian public-policy limits.

Confirm how the marriage and agreement must be evidenced or registered for the intended Brazilian transaction; the steps depend on the spouses’ circumstances and documents. See how to have a foreign marriage recognized in Brazil and, if relevant, recognition of a foreign divorce. Marriage to a Brazilian can also open a faster route to citizenship.

US–Brazil couples: how your regime travels

For couples tied to the United States, two things are worth knowing. First, moving to Brazil does not automatically change the marital regime. Apply the domicile test above; the wedding location and citizenship alone do not resolve it.

Second, community-property states like California and Texas are useful points of comparison, but their classifications and divorce rules should not be treated as identical to Brazil’s. With admissions in Brazil, Texas, and California, we coordinate the relevant legal analysis; other jurisdictions may require local counsel.

Your spouse’s ownership share is not the same as inheritance

The property regime does more than govern divorce — it interacts with Brazil’s forced-heirship rules to determine what a surviving spouse receives on death, and how the estate is split among heirs. A regime that looks convenient for the marriage can produce an unexpected result in probate.

First identify the surviving spouse’s own marital share (meação); that share is not inherited from the deceased. Then identify the deceased’s estate and the surviving spouse’s possible inheritance. Voluntary separation does not by itself remove the spouse’s inheritance rights or prevent competition with descendants.

See forced heirship and surviving-family rights for the succession rules. The regime, family members, applicable law, and estate composition must be considered together.

If you own property in Brazil, coordinate the regime with your estate plan: see inheritance taxes and probate fees and estate planning for families with assets in Brazil and abroad. Buying a home together? The regime should be settled first — see buying property in Brazil as a couple.

How Oliveira Lawyers can help

Choosing a regime, drafting or reviewing a prenuptial agreement, recognizing a foreign marriage, changing a regime after marriage, or aligning all of it with your estate plan — we handle it for foreign and binational couples, with remote coordination where the procedure allows it. A power of attorney does not remove every personal-signing or attendance requirement.

Every couple’s situation is different. A consultation can identify the decisions and next steps; document review and drafting require an agreed scope.

Schedule a Consultation

Sources and Related Guidance

• Brazilian Civil Code, articles 1.639–1.688 and 1.829: regime choice, exclusions, formalities and succession.
• LINDB, article 7(4): applicable law for matrimonial property.
• STF Tema 1236: choice for people over 70.
• STJ: mandatory separation and common effort.
• STJ REsp 1.912.255/SP: foreign assets in divorce proceedings.

For relationship and property planning, see our Family Law services. Inheritance procedure belongs under Inheritance & Probate.