Enforce Foreign Judgment Brazil: STJ Rules and Steps

The most expensive mistake in this area is not a badly drafted clause. It is spending two years and USD 200,000 winning a judgment in New York, London or Lisbon against a Brazilian company, then discovering that the Superior Tribunal de Justiça (STJ, Superior Court of Justice) will not recognize it because the Brazilian defendant was served by courier instead of through a letter rogatory. The judgment is valid at home and worthless in Brazil. The clock on your Brazilian assets keeps running while you start over.

The second most expensive mistake is subtler: filing an action at the STJ asking it to “homologate” a foreign contract. Contracts are not homologated. Only foreign judicial decisions and foreign arbitral awards are. That petition gets dismissed, and you lose months.

Here is the short version. Under Article 105, I, “i” of the 1988 Brazilian Constitution, only the STJ can recognize a foreign decision. Under the Civil Procedure Code (Lei 13.105/2015), a foreign judgment produces no effect in Brazil until that recognition is granted. But a foreign contract can often be enforced directly in a Brazilian first-instance court, sometimes as an enforceable title, with no STJ involvement at all. Knowing which path applies to your document is the difference between collecting in 18 months and collecting never.

This guide focuses on where these claims actually get denied, and how to avoid each denial.

What Is the Rule? Judgments and Awards Are Homologated, Contracts Are Not

Article 105, I, “i” of the Brazilian Constitution gives the STJ exclusive jurisdiction to homologate foreign decisions and grant exequatur to letters rogatory. The Civil Procedure Code (Lei 13.105/2015, Article 960) confirms that a foreign judgment has zero effect in Brazil without it. Foreign contracts fall outside this system entirely: they are enforced through ordinary proceedings.

Brazil is a Civil Law country in the Roman-Germanic tradition, not a Common Law jurisdiction. Judges apply codified statutes, and the recognition of foreign acts is a strictly regulated, formal procedure. There is no reciprocity treaty shortcut with the United States, the United Kingdom or most EU states, so every case runs through the same channel.

Three separate instruments, three separate routes:

• Foreign court judgment (a US District Court order, a High Court judgment, a Portuguese sentença): requires STJ homologation, filed as an Homologação de Decisão Estrangeira (HDE).
• Foreign arbitral award (ICC, LCIA, SCC, AAA): also requires STJ recognition, but under the Brazilian Arbitration Act (Lei 9.307/1996) and the New York Convention, which Brazil ratified in 2002. Faster, narrower grounds for refusal.
• Foreign contract with no decision yet: no homologation. You either sue in a Brazilian state court, or, if the document qualifies, go straight to enforcement (execução).

Key point: The STJ does not retry your case. Brazilian doctrine calls this juízo de delibação, a formal review only. The court checks jurisdiction, service of process, finality, translation and public order. It will not reassess evidence, contract interpretation or the amount awarded. That is good news and bad news: your merits are safe, but a formal defect is fatal and cannot be cured by arguing you were right.

If your dispute is still at the drafting stage, this is exactly why the choice of forum and the choice of law matter so much. Our analysis of the governing law clause in contracts with Brazilian parties explains how to structure that decision before a conflict exists.

Where Exactly Does STJ Homologation Get Denied?

In practice, denials cluster around five formal requirements listed in the Civil Procedure Code (Articles 963 and 964) and the STJ’s internal rules: valid service of process on the Brazilian defendant, finality of the decision, competent foreign authority, sworn translation plus apostille, and no violation of Brazilian public order or exclusive jurisdiction.

Ranked by how often they sink cases in real life:

• 1. Defective service (citação) on a party domiciled in Brazil. This is the number one killer. If the Brazilian defendant lives or is headquartered in Brazil, service must be effected through international judicial cooperation (a letter rogatory or, since Brazil joined the Hague Service Convention, via the Central Authority at the Ministry of Justice). Service by FedEx, email, publication in a foreign newspaper or a private process server is routinely rejected.
• 2. No proof that the decision is final. You must document that the judgment is effective and no longer subject to ordinary appeal in the country of origin, typically with a certificate from the clerk of the foreign court.
• 3. Missing or defective apostille. Brazil has been part of the Hague Apostille Convention since 2016. Documents from member states need an apostille; documents from non-member states need consular legalization at a Brazilian consulate, as explained on the Itamaraty consular portal.
• 4. Translation not done by a sworn translator. A certified translation from your home country is not enough. Brazil requires a tradutor público juramentado registered with a Brazilian board of trade, or a translator appointed ad hoc by the court.
• 5. Exclusive Brazilian jurisdiction or public order. Discussed in detail below.

Watch out: The Brazilian defendant will be summoned in the STJ proceeding and given a chance to respond. If it cannot be located, the court appoints a special curator (curador especial) who will raise every formal objection available. Assume the defence will be technical, not factual.

“I Was Never Properly Summoned”: The Defendant’s Strongest Argument

The strongest defence to a homologation request is a due process argument: that the Brazilian party was never validly summoned under Brazilian rules, so the foreign default judgment offends public order. When it is true, the STJ denies homologation, full stop, regardless of how strong your contract claim is.

Put the argument at its strongest, as good Brazilian litigators do. Brazil has historically treated service on persons in its territory as an act of state authority that foreign courts cannot perform unilaterally. Therefore, the defence says, when a Delaware court “served” a Brazilian company by mailing documents to its São Paulo office, that act had no legal existence in Brazil. The company had no duty to appear. The default judgment that followed rests on a summons that never happened. Recognizing it would import a decision reached without the adversarial guarantee that the Brazilian Constitution treats as non-negotiable. This is not a technicality about paperwork; it is the core of due process.

Now the answer. That argument only works when the defendant genuinely stayed out of the foreign proceeding. It collapses in three situations:

• Voluntary appearance. If the Brazilian party retained counsel abroad, filed a motion, produced documents or negotiated in the foreign case, it accepted the forum. Defective formal service becomes irrelevant because the constitutional purpose, the opportunity to defend, was met.
• Proper cooperation channel used. If you served through the Central Authority under the Hague Service Convention, or through a letter rogatory that received exequatur, the objection has no factual base. Keep the certificate of service; it is your single most valuable exhibit.
• The defendant is not domiciled in Brazil. If the counterparty was resident abroad at the time and only holds assets in Brazil, service under the foreign court’s own rules is generally sufficient.

How it works: Before filing abroad, decide whether you will ever need to enforce in Brazil. If the answer is yes, plan service through international cooperation from day one, even if your local rules allow something faster. The extra 4-8 months you spend on a letter rogatory abroad is cheaper than a denied homologation years later. The Ministry of Justice explains the channel on its international legal cooperation pages.

How Long Does STJ Homologation Take in 2026, and What Does It Cost?

Expect 6-12 months for an uncontested homologation at the STJ and 18-36 months when the Brazilian defendant fights it, based on how the court’s homologation docket has been moving. Court costs themselves are low, generally a few hundred reais paid through a federal payment slip (guia de recolhimento). The real cost is translation and legal fees.

Realistic 2026 budget for a commercial case:

• STJ court costs: modest by international standards, typically under R$ 300 per filing according to the STJ’s published cost tables. Some categories are exempt.
• Sworn translation: R$ 60 to R$ 100 per lauda (a standard page of roughly 1,000 characters) under the fee tables published by state boards of trade. A 40-page judgment with exhibits commonly runs R$ 3,000 to R$ 8,000.
• Apostille abroad: USD 10 to USD 60 per document in most jurisdictions.
• Legal fees, uncontested HDE: R$ 15,000 to R$ 30,000 as a fixed fee is a common market range.
• Legal fees, contested HDE: R$ 30,000 to R$ 80,000, or a hybrid of fixed fee plus success fee.
• Enforcement stage after homologation: usually a percentage of the recovered amount, often 10% to 20%.

Quick recap: Homologation is only phase one. Once the STJ grants it, the decision is enforced in the Federal Court of first instance (Justiça Federal), not back at the STJ. Add another 1-3 years for asset tracing, attachment of bank accounts through the BacenJud/SISBAJUD system and possible appeals. Our guides on legal costs in Brazil and how long a Brazilian lawsuit takes give the full picture.

When Can You Skip the STJ Entirely and Enforce the Foreign Contract Directly?

This is where the general rule stops applying. If you hold a contract and no judgment, you never go to the STJ. The Civil Procedure Code’s list of extrajudicial enforceable titles (Article 784) expressly includes foreign documents, meaning a contract signed abroad can be enforced directly in a Brazilian court, skipping the merits phase completely.

To use that fast lane, the document must satisfy Brazilian requirements for an enforceable title:

• A certain, liquid and due obligation: a specific sum, a defined due date, no conditions left to interpret. “Reasonable compensation to be determined” is not enforceable; “USD 250,000 payable on 30 April 2026” is.
• Signature by the debtor and, for private instruments, the formalities the Code requires (in practice, signature by two witnesses is the safe standard for private contracts).
• The title must indicate Brazil as the place of performance, or the obligation must otherwise be payable in Brazil.
• Apostille or consular legalization, plus sworn translation into Portuguese.

Get this right and you file an execução de título extrajudicial. The debtor is summoned to pay within three days, and asset attachment can begin almost immediately. That is a radically different posture from a two to four year ordinary lawsuit.

Get it wrong and you fall back on an ordinary action (ação de cobrança or ação de indenização), where the foreign contract is simply your main piece of evidence. You will still win if the contract is solid, but you will spend years doing it. Common drafting flaws that push foreign contracts into the slow lane are catalogued in our piece on the costliest contract mistakes foreigners make in Brazil.

How it works: Before you litigate anywhere, have a Brazilian lawyer audit the contract against the enforceable title checklist. If it fails on a fixable point, such as missing witnesses, an amendment or an acknowledgement of debt (confissão de dívida) signed now can convert a slow claim into a fast one. That single review often changes the entire strategy.

Which Foreign Decisions Will Brazil Never Enforce?

Some cases are lost before they start. Under Article 23 of the Civil Procedure Code, Brazilian courts have exclusive jurisdiction over real property located in Brazil, over succession of assets situated in Brazil (even when the deceased was a foreigner), and over the division of Brazilian assets in divorce or separation. A foreign judgment on those matters cannot be homologated.

Other recurring refusal grounds:

• Conflict with a Brazilian final decision. If a Brazilian court has already decided the same dispute between the same parties, the foreign judgment loses.
• Violation of public order or national sovereignty. The classic examples involve mandatory Brazilian protections that parties cannot contract around, such as employment rights of workers who performed services in Brazil and consumer protections. A foreign ruling that strips those away will face serious resistance.
• Interim or non-final decisions. Provisional measures follow a different route, through letters rogatory or direct assistance, not homologation. Filing them as an HDE wastes months.
• Arbitral awards with no valid written arbitration agreement, or where the losing party was not notified of the arbitrator’s appointment or of the proceedings. These are New York Convention grounds, reproduced in the Brazilian Arbitration Act.

Watch out: Real estate is the sharpest trap. Foreign families frequently obtain divorce or inheritance decisions abroad that purport to divide an apartment in Rio or a farm in Bahia. The divorce itself can be homologated; the allocation of the Brazilian property generally cannot. Plan for a separate Brazilian proceeding for the asset.

Note also that arbitral awards enjoy a structurally friendlier reception. Because refusal grounds are limited by treaty, foreign awards are recognized more consistently and more quickly than foreign court judgments. Our dedicated guide on enforcing foreign arbitral awards in Brazil covers that route in depth. If you are still negotiating, an arbitration clause is one of the highest-value provisions you can insert.

Homologation, Direct Enforcement or New Lawsuit: Which Route Applies to You?

The route depends on what document you hold. Foreign judgments and awards go to the STJ, taking 6-36 months. Foreign contracts that qualify as enforceable titles go straight to a first-instance court with a three-day payment order. Everything else becomes an ordinary lawsuit lasting 2-4 years.

What you hold	Where you file	Realistic timeline	Main denial risk
Foreign court judgment	STJ (HDE), then Federal Court for enforcement	6-12 months uncontested; 18-36 months contested	Defective service on the Brazilian party
Foreign arbitral award	STJ (recognition under the Arbitration Act and New York Convention)	6-18 months	No valid written arbitration agreement; lack of notice
Foreign contract, liquid sum, payable in Brazil	State court, direct enforcement (execução)	Payment order in 3 days; recovery in 1-3 years	Amount not certain and liquid; missing witnesses or translation
Foreign contract, unliquidated or disputed	State court, ordinary action	2-4 years plus appeals	Evidentiary problems; mandatory Brazilian rules override clauses
Interim or provisional foreign order	Letter rogatory or direct assistance via Ministry of Justice	4-12 months	Filed in the wrong procedural channel

What Changed in 2026 for Enforcing Foreign Contracts in Brazil?

No new statute rewrote the framework in 2026. The Constitution’s Article 105 rule, the Civil Procedure Code of 2015 and the Arbitration Act of 1996 all remain in force. What changed is operational: STJ homologation filings are now fully electronic, and cross-border service through the Hague Service Convention Central Authority has become the expected standard rather than the exception.

Three practical shifts worth knowing:

• Electronic filing and remote hearings. HDE petitions and supporting documents are filed digitally, which removes the old delay of shipping physical files to Brasília. You still need originals of the apostille and the sworn translation available on request.
• Greater tolerance for arbitration notice by contract terms. Where the parties agreed on notification by email or courier in the arbitration clause, that contractual method is far more likely to be accepted than the same method in a court case. This widens the gap between arbitration and litigation.
• Stricter documentary scrutiny. Incomplete apostilles and non-sworn translations are being flagged early, generating orders to cure that add 60-120 days. Preparing a clean file at filing is now the single biggest timeline saver.

Key point: There is still no reciprocal enforcement treaty between Brazil and the United States or the United Kingdom for civil judgments. Anyone telling you a US judgment is “automatically” enforceable in Brazil is wrong. Brazil does have cooperation arrangements with several Mercosur and Portuguese-speaking countries that can simplify document transmission, but homologation is still required.

Step-by-Step: Filing an STJ Homologation Request

The process starts with a Brazilian lawyer registered with the OAB (Brazilian Bar Association) filing an HDE petition at the STJ under a power of attorney. Only a licensed Brazilian lawyer can appear; foreign counsel cannot file. Budget 2-3 months for document preparation before filing, which is where most of the controllable delay sits.

• Step 1: Sign a procuração (power of attorney). If signed abroad, it needs notarization and an apostille. Include express authority for homologation and enforcement.
• Step 2: Obtain a certified copy of the foreign decision plus a certificate confirming it is final and effective in the country of origin.
• Step 3: Gather proof of service. Certificates of service, the defendant’s filings abroad, appointment of counsel, anything showing the Brazilian party had a real chance to defend itself.
• Step 4: Apostille everything at the competent authority in the issuing country, or legalize at a Brazilian consulate if the country is not a Hague member.
• Step 5: Sworn translation into Portuguese by a tradutor público juramentado, covering the decision, the finality certificate and the service records.
• Step 6: File the HDE electronically at the STJ and pay the court costs by guia de recolhimento. Provide the defendant’s full address, CNPJ (company tax ID) or CPF (individual tax ID).
• Step 7: Defendant’s response. The Brazilian party is summoned and may contest only on formal grounds. If it cannot be found, a special curator is appointed.
• Step 8: Decision. If uncontested and the file is complete, the STJ President may grant homologation directly; contested cases go to a panel.
• Step 9: Enforcement. With homologation granted, file cumprimento de sentença in the Federal Court of first instance and start asset attachment.

Quick recap: Complete file at filing, documented service, proven finality. Those three items decide most cases. Choosing counsel matters too; see our guidance on how to verify an English-speaking lawyer’s OAB registration before signing anything.

Frequently Asked Questions About Enforcing Foreign Contracts in Brazil

Can I homologate a foreign contract at the STJ?

No. Homologation applies only to foreign judicial decisions and arbitral awards, not to contracts. A foreign contract is enforced in Brazil either as an extrajudicial enforceable title, if it specifies a certain and liquid sum payable in Brazil and meets the Civil Procedure Code’s requirements, or through an ordinary lawsuit where the contract is your central evidence. In both cases you file in a first-instance court, not the STJ. Filing an HDE for a contract results in dismissal and lost time, which is one of the most common errors foreign companies make when they first look at this process.

Does a US or UK judgment enforce automatically in Brazil?

No. Brazil has no reciprocal enforcement treaty with the United States or the United Kingdom for civil and commercial judgments. Every foreign judgment must pass through STJ homologation under Article 105 of the Constitution and Article 960 of the Civil Procedure Code. The STJ will not review the merits, but it will verify service of process, finality, jurisdiction, translation and public order. A judgment that satisfies those conditions is recognized and then enforced in the Federal Court. A judgment obtained by mail service on a Brazilian-domiciled defendant will very likely be refused.

What if the Brazilian defendant has no assets in Brazil?

Homologation is worth little without assets to attach, so asset investigation should come before, not after, the filing. Brazilian counsel can search real estate registries, corporate records at the boards of trade, and, once a case is filed, use judicial tools to trace bank accounts and vehicles. If the target is asset-poor, consider whether piercing the corporate veil (desconsideração da personalidade jurídica) or pursuing guarantors is viable. In some cases a negotiated settlement, backed by the credible threat of homologation, recovers more than a full enforcement campaign.

How long do I have to file? Is there a deadline?

There is no specific deadline for requesting homologation itself, but the underlying credit is subject to limitation periods (prescrição) under Brazilian law, which for most contractual debts is measured in years and can be as short as five. Waiting also creates practical damage: assets get transferred, companies get dissolved, and evidence of service becomes harder to obtain from foreign clerks. The safe rule is to start preparing the Brazilian file as soon as the foreign decision becomes final.

Is arbitration really better than litigation for contracts with Brazilian parties?

For enforcement purposes, yes, in most commercial cases. Foreign arbitral awards benefit from the New York Convention, which limits the grounds on which Brazil can refuse recognition, and the Brazilian Arbitration Act reproduces those limits. Notification methods agreed in the arbitration clause are also accepted more readily than foreign court service. The trade-off is cost: institutional arbitration fees and arbitrator fees can be substantial. For high-value contracts, that cost is usually justified by the enforcement advantage.

Do I need to travel to Brazil for the process?

Generally no. STJ homologation is a documentary proceeding conducted electronically, and your Brazilian lawyer acts under a power of attorney. You will need an apostilled procuração and, for enforcement and any banking steps, a CPF (individual tax number) or CNPJ if you act through a company. Physical presence becomes relevant only in unusual situations, such as testimony in a related ordinary lawsuit. Note that residential and commercial documents may still require original copies to be mailed to counsel.

Enforce Your Foreign Contract in Brazil: Get a Route Assessment First

Holding a contract or judgment that a Brazilian party is ignoring is frustrating, and the procedural maze around STJ homologation makes it worse. The good news is that the outcome is usually decided by a handful of documentary facts you can verify today: how the Brazilian party was served, whether the decision is final, and whether your contract qualifies as an enforceable title.

Your concrete next step: send us the contract, the foreign decision if you have one, and the proof of service. Our bilingual team will tell you which of the routes in the table above applies, what it will cost, and what needs to be fixed before filing.

You can also read the full text of the Civil Procedure Code (Lei 13.105/2015) on the official Planalto portal if you want to check the provisions yourself.