A supply chain collapses overnight. A currency crisis doubles the cost of raw materials. A public health emergency suspends an entire sector for months. Each scenario confronts contracting parties with the same urgent question: does Brazilian law release them from their obligations, and if so, at what cost? The gap between what the statute appears to promise and what courts actually deliver is wide – and for international businesses operating across the Americas, that gap carries serious financial consequences.
Brazilian civil legislation recognises two distinct doctrines for managing unforeseen disruption: force majeure. This suspends or extinguishes obligations when performance becomes objectively impossible. Additionally. onerosidade excessiva (excessive onerousness). This allows judicial revision or termination when a supervening event shatters the economic equilibrium of the contract. Both doctrines are grounded in the Brazilian Civil Code. However, their application by the Superior Tribunal de Justiça (Superior Court of Justice of Brazil) and lower tribunals reveals a body of law that is more restrictive. Additionally. More strategically nuanced, than a plain reading of the statute suggests.
This analysis examines the doctrinal architecture of both doctrines, maps the divergence between statutory text and judicial practice. Assesses the strategic options available to contracting parties at each stage of a dispute. Additionally, considers the specific challenges facing cross-border businesses with exposure to Brazilian contracts.
The doctrinal architecture: two routes through the same storm
Brazilian contract law sits within the civil law tradition. It draws on a codified structure that balances contractual freedom with principles of social function, good faith, and equitable distribution of contractual risk. These principles are not merely aspirational – they are operative standards that courts apply when deciding whether a disruption event triggers relief.
Force majeure and fortuitous events
Brazilian civil legislation uses the terms caso fortuito (fortuitous event) and força maior (force majeure) largely interchangeably in practice, though doctrinal scholarship draws distinctions. Both concepts require the same core elements: an external event, unforeseeable at the time of contracting, that renders performance objectively impossible. The word "objectively" carries significant weight. It means that impossibility must be absolute – not merely more difficult, more expensive, or commercially less attractive.
A party in default at the time the disruptive event occurs faces a further barrier. Brazilian civil legislation generally denies force majeure relief to a debtor who was already in breach when the event arose. This rule catches many businesses by surprise. A supplier who had already missed a delivery window before the pandemic lockdown order, for example, could not invoke that order to escape liability for the pre-existing breach. The timing of the party's own performance – not just the timing of the external event – is therefore critical.
The effect of a successful force majeure claim is suspension of the obligation during the period of impossibility, with termination available if the impossibility is permanent. Courts do not revise prices or redistribute economic losses under force majeure. The doctrine operates as an on/off switch – either performance is impossible and the obligation is extinguished, or it is not and the obligation stands.
Excessive onerousness and the theory of changed circumstances
Onerosidade excessiva (excessive onerousness) follows a different logic. It does not require impossibility. It applies where a supervening event – extraordinary and unforeseeable – makes performance excessively burdensome for the debtor, while conferring a corresponding undue advantage on the creditor. The doctrine authorises the debtor to seek judicial revision of contractual terms or, if revision is not feasible, termination of the contract.
Three elements are essential. First, the supervening event must be extraordinary – not merely unusual but genuinely outside the normal range of risks the parties could have been expected to allocate when contracting. Second, the event must be unforeseeable. Third, and critically, the imbalance must be severe. Brazilian courts set a high threshold here. A cost increase that merely reduces profit margins, or even eliminates them, is generally insufficient. The imbalance must be of a magnitude that fundamentally alters the nature of the bargain.
The Civil Code also provides the creditor with a defensive option: the creditor may offer to modify the contract to restore balance, thereby defeating the debtor's claim for termination. This mechanism reflects the legislature's preference for contract preservation over dissolution. In practice, it gives creditors significant leverage in negotiations once a hardship claim is threatened.
A third doctrinal strand – the teoria da imprevisão (theory of unforeseeability) – overlaps substantially with excessive onerousness and is sometimes invoked in parallel. Courts and commentators differ on whether it constitutes a separate cause of action or merely a label for the same analysis. The practical consequence is that a party filing a statement of claim in Brazilian courts may legitimately plead both theories, leaving the court to apply the more appropriate one.
Competing court interpretations and the gap between statute and practice
The Superior Court of Justice has shaped Brazilian force majeure and hardship doctrine through a series of decisions over the past two decades. The positions that have emerged are not always intuitive. Several deserve close attention from practitioners advising cross-border clients.
The foreseeability threshold in practice
Brazilian courts apply foreseeability analysis at a systemic level, not at the level of the individual contracting party's actual knowledge. An event is treated as foreseeable if businesses operating in the relevant sector, at the time of contracting, should reasonably have anticipated the category of risk – even if not its precise form or timing. This systemic standard tends to make events "foreseeable" more often than parties expect.
Currency devaluation is a recurring example. Brazil has experienced significant currency volatility throughout its recent economic history. Courts have consistently held that exchange rate risk is foreseeable in the context of dollar-denominated or indexed contracts, because Brazilian market participants have always been aware that the real can depreciate sharply. A dramatic devaluation therefore rarely qualifies as the extraordinary and unforeseeable event required to trigger excessive onerousness relief, regardless of its severity in a particular case.
Commodity price shocks present similar challenges. The Superior Court of Justice has generally held that price volatility in commodity markets is an inherent feature of those markets. A steel producer that entered a long-term supply contract at fixed prices cannot typically invoke excessive onerousness merely because global steel prices subsequently moved against it. The court's reasoning is that the fixed-price structure itself was a commercial choice – the parties allocated price risk when they agreed the terms.
The pandemic decisions and their lasting precedential effect
The COVID-19 pandemic generated a wave of force majeure and hardship litigation across Brazilian courts. The resulting body of decisions is instructive precisely because the same event produced divergent outcomes depending on the sector, the contractual structure, and the timing of performance obligations.
Courts generally accepted that public health restrictions constituting mandatory government orders could qualify as force majeure events for directly affected obligations. a hospitality business ordered to close. For example, could invoke force majeure to excuse performance of a venue hire agreement during the closure period. However, courts were far more reluctant to extend the doctrine to supply chain disruptions that were indirect consequences of the pandemic, or to obligations that remained technically performable despite increased difficulty or cost.
The decisions also reinforced a distinction between temporary impossibility and permanent impossibility. Where restrictions were temporary, courts preferred suspension of the obligation to termination – requiring parties to resume performance once restrictions lifted, rather than dissolving the contract. This outcome surprised many businesses that had treated the pandemic as an exit mechanism from commercially inconvenient contracts.
The de jure and de facto gap in judicial revision
De jure, Brazilian civil legislation authorises courts to revise contracts affected by excessive onerousness, restoring the balance between the parties. De facto, courts are reluctant to exercise this power broadly. First-instance judges and appellate courts in Brazil more frequently opt for termination than revision. Partly because rewriting commercial terms raises difficulties of institutional competence. a court is generally less well-positioned than the parties to determine what a fair revised price should be.
In practice, the revision remedy tends to be more effective where the parties themselves have proposed a revised structure and ask the court to ratify it, or where the contract contains a built-in renegotiation mechanism. Where the debtor simply asks the court to fix new terms without having attempted negotiation, courts frequently dismiss the revision claim and offer only termination. This judicial preference has important strategic consequences, discussed further below.
For parties considering court filing in Brazil, the procedural design of a hardship claim also matters. Brazilian civil procedure rules permit parties to seek an interim injunction – tutela de urgência (urgent interim relief) – to suspend their contractual obligations while the substantive dispute is resolved. This tool is relevant where a party faces immediate, irreversible consequences from being required to perform. However, obtaining interim relief in commercial contract cases is not straightforward. Courts require a showing of both the urgency of the situation and the likelihood of success on the merits. Failing to demonstrate both elements results in dismissal of the interim application without prejudice to the main claim.
For a detailed comparison of how similar doctrines operate in a common law context. The analysis of force majeure and hardship in the United States provides a useful counterpoint for Americas-focused clients managing contracts across multiple jurisdictions.
Strategic positioning for contracting parties facing disruption
The doctrinal and judicial landscape described above generates a set of strategic choices that are not obvious from the text of the legislation alone. Businesses that understand the practical dynamics can position themselves more effectively – whether as the party seeking relief or the party defending against a claim.
Early renegotiation as a primary strategy
The single most important strategic insight from Brazilian hardship doctrine is that judicial revision rarely produces a better outcome than negotiated revision. Courts are reluctant to rewrite commercial terms. The process is slow. First-instance proceedings in state courts take, on average, between one and three years to reach a judgment. The uncertainty during that period impairs planning on both sides.
Brazilian civil legislation also imposes a duty of good faith throughout the contractual relationship, including during periods of disruption. A party that refuses to engage in renegotiation when the other side has raised a plausible hardship claim risks an adverse finding on good faith. which can affect the court's assessment of damages and costs even if the substantive hardship claim ultimately fails. Early renegotiation is therefore not merely commercially sensible. It is legally protective.
Contractual force majeure clauses and their limits
Many international contracts include bespoke force majeure clauses that define the triggering events, the notice requirements, and the consequences of a force majeure event. In Brazil, such clauses are valid and enforceable, but they interact with the statutory regime in ways that require careful drafting.
A clause that purports to exclude force majeure relief entirely – or that defines the concept more narrowly than the Civil Code – will generally be respected between commercial parties of equal bargaining power. However, a clause that seeks to expand force majeure to cover events that do not meet the statutory threshold of objective impossibility may be recharacterised by courts as a hardship provision. Subject to the higher threshold of excessive onerousness. The label the parties attach to the clause is not determinative. The substantive content governs.
Notice provisions in contractual force majeure clauses also generate significant litigation. Brazilian courts have held that failure to give timely notice of a force majeure event can constitute a waiver of the defence. Alternatively. Can limit the party's ability to recover costs incurred during the delay period. Notice windows in Brazilian market practice tend to be short – often between five and thirty days from the occurrence of the event. International parties accustomed to longer notice periods in common law governed contracts must adjust their monitoring and response protocols accordingly.
Arbitration as a preferred dispute resolution mechanism
Commercial arbitration in Brazil has matured significantly over the past two decades. Brazilian arbitration legislation is broadly aligned with international standards, and arbitral awards are readily enforced through the Brazilian court system. For high-value commercial contracts – particularly those involving international parties or cross-border performance – arbitration offers meaningful advantages over state court litigation in the context of force majeure and hardship disputes.
Arbitral tribunals constituted under institutional rules can be seated in Brazil or abroad, apply Brazilian substantive law, and proceed on timelines that are considerably faster than state court proceedings. The flexibility of arbitral procedure is particularly valuable in hardship cases. There. The tribunal can appoint independent experts to assess the economic impact of the disruption event. a capacity that state courts exercise rarely and with less rigour. Arbitration also offers confidentiality, which matters in disputes involving commercially sensitive pricing or supply chain information.
For parties assessing litigation and arbitration options in Brazil, the choice of dispute resolution mechanism should be made at the contract drafting stage. Once a dispute has arisen, inserting an arbitration clause is generally not possible without the counterparty's consent.
Judgment enforcement considerations
Where a party obtains a favorable judgment in a Brazilian force majeure or hardship case, judgment enforcement against a counterparty with assets in Brazil is governed by Brazilian civil procedure rules. The enforcement process – cumprimento de sentença (judgment compliance proceedings) – is procedurally integrated with the original proceedings, which reduces friction compared to systems that require separate enforcement actions. However, enforcement against a non-compliant debtor can still take several months, particularly where asset identification is required or where the debtor contests the enforcement steps.
Where the counterparty has assets exclusively outside Brazil, recognition and enforcement of a Brazilian judgment abroad requires compliance with the legal requirements of the destination jurisdiction. Brazilian judgments are recognised in a number of jurisdictions through bilateral treaties or comity principles, but the process varies. Parties anticipating cross-border enforcement should factor this into their strategy before initiating proceedings.
To explore the full range of dispute resolution tools available in the Brazilian market, including injunctive relief and recovery strategies, our practice overview of corporate disputes in Brazil provides a comprehensive reference point.
For a tailored strategy on force majeure and hardship contract disputes in Brazil, reach out to info@ferrazwhitmore.com.
Cross-border implications for Americas clients
Brazilian force majeure and hardship doctrine presents specific challenges for international parties operating across the Americas. Several features of the Brazilian legal environment do not map cleanly onto the assumptions of common law-trained counsel or onto the civil law systems of other Latin American jurisdictions.
Governing law and Brazilian mandatory rules
Brazil's private international law rules allow commercial parties to choose a foreign governing law for their contracts. However, Brazilian civil legislation contains mandatory provisions – rules that apply regardless of the chosen law – in certain sectors and contexts. Consumer contracts, employment agreements, and contracts involving regulated industries may be subject to mandatory Brazilian rules on force majeure and hardship even where the parties have selected New York or English law. International parties who assume that their foreign governing law clause provides a complete shield against Brazilian doctrine are frequently surprised by this limitation.
The interaction between a foreign governing law and Brazilian mandatory rules requires analysis at the contract drafting stage – not after a dispute has arisen. A risk allocation structure that works well under New York law may produce unintended outcomes when Brazilian mandatory rules are applied to a contract with performance obligations in Brazil.
The Americas comparative context
Across the broader Latin American region, force majeure doctrine varies considerably. Several civil law jurisdictions in the region follow doctrinal approaches that are broadly similar to Brazil's, requiring objective impossibility rather than mere difficulty. Others – particularly those influenced by the UNIDROIT Principles on International Commercial Contracts – have moved toward a more permissive hardship standard that allows relief where performance remains technically possible but has become economically destructive.
Brazil's approach is closer to the restrictive end of this spectrum. A business that has successfully invoked hardship relief under the law of, say, Colombia or Chile should not assume that the same facts will produce the same result under Brazilian law. The thresholds are materially different. Practitioners in the region consistently note that Brazilian courts scrutinise hardship claims more critically than their counterparts in several neighbouring jurisdictions, particularly regarding the foreseeability element.
Sector-specific considerations
Certain sectors in Brazil operate under regulatory regimes that modify the general civil law rules on force majeure and hardship. Infrastructure and concession contracts, for example, are governed by public law principles as well as commercial legislation. The standard for relief in concession contracts may be more generous in some respects. Brazilian administrative law has developed the concept of the fato do príncipe (act of the prince). This allows concessionaires to seek compensation from the state when government action disrupts the economic equilibrium of the concession. Even without meeting the full statutory threshold for force majeure.
Energy contracts, agribusiness supply chains, and real estate development agreements each present their own sector-specific risk allocation conventions. Parties entering these sectors without local counsel risk applying general civil law assumptions to contexts where specific regulatory overlays significantly alter the analysis.
Self-assessment: when Brazilian force majeure and hardship relief applies
The following checklist helps international parties assess whether a situation is likely to support a viable claim under Brazilian law – and what practical steps should be taken immediately.
Force majeure applies if:
- An external event has made performance objectively and absolutely impossible – not merely more difficult or costly.
- The event was unforeseeable at the time the contract was entered into, applying a systemic standard for the relevant sector.
- The party invoking force majeure was not already in default when the event occurred.
- Notice has been given to the counterparty within the timeframe specified in the contract, or promptly if no contractual timeframe exists.
Excessive onerousness applies if:
- A supervening event – extraordinary and outside the normal range of sector risks – has severely disrupted the economic balance of the contract.
- The imbalance benefits the creditor at the debtor's expense in a manner that goes well beyond normal market fluctuation.
- The debtor has made a genuine attempt to renegotiate before initiating court proceedings.
- The contract does not contain a fixed price or risk allocation clause that specifically covers the category of event in question.
Before initiating proceedings, verify:
- Whether the governing law clause selects Brazilian law, or whether mandatory Brazilian rules apply regardless of the chosen law.
- Whether the contract contains an arbitration clause that displaces state court jurisdiction.
- Whether an tutela de urgência – urgent interim relief – is available and appropriate given the immediacy of the harm.
- Whether the sector is subject to regulatory rules that modify the general civil law analysis.
Outlook: where Brazilian doctrine is heading
Brazilian contract law is not static. Several developments in the coming years are likely to affect the application of force majeure and hardship doctrine in commercial disputes.
The pandemic litigation wave has produced a large body of lower court decisions that are still working their way through the appellate system. As the Superior Court of Justice consolidates its positions on key questions. particularly the foreseeability threshold for systemic shocks and the criteria for interim relief in commercial contract cases – the doctrine will become clearer. In the medium term, this consolidation is likely to produce a more predictable body of precedent, which benefits international parties planning new contracts with Brazilian counterparties.
There is also an ongoing debate among Brazilian jurists and practitioners about whether the current statutory formulation of excessive onerousness sets the relief threshold too high. Critics argue that the requirement of "extraordinariness" – interpreted restrictively by courts – leaves many businesses without an effective remedy when genuinely destabilising events occur. Proposals for legislative amendment or for a more flexible judicial interpretation have gained some traction in academic and professional circles. Whether this translates into doctrinal change at the Superior Court level remains to be seen.
The growth of commercial arbitration in Brazil is also reshaping the landscape. Arbitral tribunals are not bound by the same institutional constraints as state courts. They have more flexibility to craft tailored remedies – including interim arrangements, phased performance adjustments, and cost reallocation mechanisms – that state courts rarely employ. As more high-value contracts incorporate arbitration clauses, the practical content of force majeure and hardship doctrine in Brazil may evolve in ways that diverge from the state court case law. Practitioners advising international clients should monitor both streams of authority.
Climate-related disruption is an emerging frontier. As physical climate risks – extreme weather, flood events, prolonged drought – affect supply chains and infrastructure projects with increasing frequency. Brazilian courts will face pressure to address how the existing statutory categories apply to events that are simultaneously systemic, foreseeable in general terms. Additionally, unpredictable in their specific timing and magnitude. This tension between general awareness of climate risk and the unforeseeable character of a specific event is unresolved in current doctrine and is likely to generate significant litigation in the coming decade.
Frequently asked questions
Q: What is the difference between force majeure and hardship under Brazilian contract law?
A: Force majeure under Brazilian civil legislation applies where an external, unforeseeable event makes contractual performance objectively impossible. Hardship – referred to in Brazil as excessive onerousness – does not require impossibility. It applies where a supervening event makes performance excessively burdensome for one party, shifting the underlying economic equilibrium of the contract. Brazilian courts treat these as distinct doctrines with different thresholds and remedies.
Q: How long does it take to resolve a hardship or force majeure dispute in Brazilian courts?
A: First-instance proceedings before Brazilian state courts typically take between one and three years, depending on the complexity of the matter and the workload of the relevant tribunal. Appeals to higher courts can extend the timeline by a further one to two years. Commercial arbitration under institutional rules, which is widely used in Brazil for high-value contracts, can resolve the same dispute in twelve to eighteen months, making it a frequently preferred route for international parties.
Q: Can a foreign company invoke Brazilian force majeure rules in a contract governed by foreign law?
A: A common misconception is that Brazilian law automatically applies to any contract performed on Brazilian territory. Where the parties have chosen a foreign governing law in a valid choice-of-law clause, Brazilian courts generally respect that choice for the substantive provisions of the contract, including force majeure. However, Brazilian public policy rules and mandatory civil legislation provisions may apply regardless of the chosen law, particularly in consumer and regulated-sector contracts. Engaging a lawyer in Brazil with cross-border contract experience is essential before relying on a foreign law clause in high-stakes situations.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our team combines Portuguese civil law expertise with English common law tradition to deliver cross-border legal solutions in commercial contract disputes, force majeure analysis, and hardship litigation across the Americas and beyond. We work with international entrepreneurs, institutional investors, and in-house legal teams who need results-oriented counsel from a law firm in Brazil-capable practice with deep civil law roots. The firm's commercial disputes practice covers Latin American jurisdictions across both civil law and common law systems, supported by a network of local counsel in key Brazilian commercial centres. Our attorneys have advised on contract revision, interim injunction applications, and judgment enforcement matters across multiple American jurisdictions. As an international law firm serving clients with cross-border commercial exposure, Ferraz & Whitmore provides direct access to Portuguese and EU regulatory intelligence alongside focused Americas advisory. To discuss your force majeure or hardship situation in Brazil, contact us at info@ferrazwhitmore.com.
Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.