A cross-border supply agreement signed in 2019 between a North American manufacturer and a Mexican distributor looked watertight. Then came successive waves of disruption: a global health emergency, regulatory shutdowns, currency volatility, and raw-material shortages. The distributor invoked caso fortuito o fuerza mayor (force majeure or act of God under Mexican civil law). The manufacturer rejected the argument and filed a statement of claim demanding full performance. Both parties discovered that Mexican contract law in this area is considerably less predictable than either had assumed.
Force majeure and hardship in Mexico are governed primarily by civil legislation at both the federal level and across individual state codes, with commercial legislation adding a distinct layer for mercantile contracts. To invoke either doctrine successfully, an affected party must satisfy a strict causation test. demonstrating that the disrupting event was unforeseeable or irresistible. That it directly prevented performance. Additionally, that the party was not already in default. Hardship, where performance remains technically possible but becomes economically ruinous, occupies a contested space in Mexican courts and carries a materially higher threshold than force majeure.
This analysis examines the doctrinal foundations of both defences, the gap between statutory text and judicial practice, competing court interpretations at different tiers. Cross-border implications for clients operating across the Americas. Additionally, the strategic choices available to parties facing or asserting these claims in Mexico today.
Doctrinal foundations: how Mexican law frames force majeure and hardship
Mexican private law draws from the French civil tradition. The influence is direct and visible in the structure of civil obligations. Both the Código Civil Federal (Federal Civil Code) and the civil codes of the 31 federal entities contain provisions on the extinguishment or suspension of obligations arising from events beyond the debtor's control.
The core concept is expressed as caso fortuito o fuerza mayor. In its classical formulation, caso fortuito (fortuitous event) refers to an unforeseeable natural or internal occurrence, while fuerza mayor refers to an irresistible external event. In practice, Mexican courts and practitioners frequently treat the two expressions as interchangeable. The distinction matters more in academic commentary than in commercial litigation.
For either concept to excuse non-performance under civil legislation, four cumulative conditions must generally be satisfied. First, the event must have been unforeseeable at the time the contract was executed. Second, the event must have been irresistible – that is, the debtor could not have overcome it even with reasonable diligence. Third, there must be a direct causal link between the event and the failure to perform. Fourth, the debtor must not have been in default (mora) before the event occurred. A party that was already late in its obligations loses the protection of force majeure for the period of its pre-existing delay.
Commercial legislation applicable to mercantile contracts modifies certain aspects of this picture. Under Mexico's commercial legislation, the parties' contractual language takes on greater weight. Courts interpreting commercial agreements apply a more contract-centric approach. Where the contract contains a detailed force majeure clause – including defined triggering events, notification procedures, and duration limits – that clause will generally govern over the default statutory position.
Hardship – the doctrine allowing a court to revise or terminate a contract when unforeseen events radically alter the economic equilibrium of performance – has a weaker statutory foundation in Mexico. Several civil codes contain provisions on imprevisión (unforeseeability doctrine), which is the closest Mexican equivalent. However, the textual scope of those provisions is narrow. They typically require an alteration so severe that performance becomes not merely more expensive but effectively impossible in economic terms. This is a materially higher bar than the UNIDROIT Principles standard or the approach taken in several other Latin American civil law systems.
The Federal Civil Code's treatment of imprevisión is notably cautious. Courts applying it have historically required the claimant to demonstrate that the change in circumstances was of a magnitude that no reasonable party could have anticipated. Additionally. That the resulting imbalance is so extreme as to be unconscionable. Economic downturns, exchange rate fluctuations, and commodity price increases – even dramatic ones – have not consistently met this threshold.
Competing interpretations: what Mexican courts actually do
The gap between the statutory text and judicial outcomes in Mexico is wider in this area than in most commercial law topics. Understanding that gap is essential for any party considering a force majeure or hardship argument in Mexican civil procedure.
At the level of first-instance civil and commercial courts, outcomes vary considerably. Courts in the major commercial centres – Mexico City, Monterrey, Guadalajara – have produced divergent lines of reasoning on what qualifies as an unforeseeable event. A health emergency declared by federal authorities has been treated as a force majeure trigger in some proceedings and rejected in others, depending on the specific contractual context and the sector involved.
The Suprema Corte de Justicia de la Nación (Supreme Court of Mexico) has over time established interpretive criteria that constrain lower courts. The dominant position that has emerged from the highest tribunal emphasises strict causation. It is not sufficient to show that a disruptive event occurred contemporaneously with a failure to perform. The affected party must demonstrate, with documentary evidence, that the specific obligation it failed to discharge was directly and materially prevented by the force majeure event. Partial performance failures receive particular scrutiny: courts often ask why the party could not have performed at least partially, or mitigated the disruption.
The Tribunales Colegiados de Circuito (Collegiate Circuit Courts). This sit between the first-instance courts and the Supreme Court. Have generated a body of decisions. collectively referred to as jurisprudencia (binding precedent under Mexican civil procedure) when issued by the required number of consistent panels. that defines the evidentiary standards for these claims. The prevailing jurisprudencia requires contemporaneous documentation of the disrupting event, a demonstrable causal chain, and evidence of mitigation efforts. A party that failed to document the event at the time it occurred faces serious evidentiary obstacles at the court filing stage.
On hardship specifically, the Collegiate Circuit Courts have been more restrictive than the academic literature might suggest. The dominant position holds that contractual revision on grounds of imprevisión is an exceptional remedy. Courts have declined to apply it to currency devaluations, input cost increases, and demand collapses, characterising these as ordinary commercial risks that sophisticated parties should have allocated at the drafting stage. The courts have been more receptive when the disrupting event was not merely economic but involved a direct regulatory prohibition – for example, a government order prohibiting a specific category of commercial activity.
There is also a significant procedural dimension. The juicio de amparo (constitutional challenge proceeding) – a distinctive feature of Mexican civil procedure – allows a party to challenge any judicial decision that allegedly violates constitutional rights, including property rights and due process. In commercial disputes, amparo proceedings are routinely used to challenge interim injunctions, procedural rulings, and first-instance judgments. The effect is to extend total litigation timelines materially. A commercial dispute that reaches a first-instance judgment within eighteen months may remain unresolved for a further two or three years while amparo proceedings work through the circuit courts.
This procedural reality shapes strategy. A creditor seeking judgment enforcement against a debtor that has invoked force majeure must account for the probability of an amparo challenge at multiple stages. Conversely, a debtor asserting force majeure has access to the same procedural tools to delay or challenge adverse rulings. Neither the creditor nor the debtor should assume that a first-instance court filing translates quickly into an enforceable outcome.
For a broader comparative perspective on how the same doctrines operate across the northern border. The analysis in our deep analysis of force majeure and hardship in the United States provides useful contrast. particularly on the divergent treatment of commercial impracticability and the role of uniform commercial legislation in common law systems.
The statute-to-practice gap and its consequences for international clients
International businesses approaching Mexican contract disputes through the lens of their home jurisdiction frequently encounter a specific set of surprises. Three are particularly consequential.
The first is the fragmentation of applicable law. Mexico has a federal structure in which each state maintains its own civil code. While the Federal Civil Code applies to federal matters and many commercial contracts, state civil codes govern a substantial share of private law relationships. The content of force majeure provisions varies across state codes. A contract governed by the civil legislation of one northern industrial state may carry different default rules than one governed by the legislation of a central state. International parties that assume a uniform national standard are taking an unquantified risk.
The second surprise is the role of contractual force majeure clauses. Because the statutory default rules are restrictive and outcome-uncertain, Mexican practitioners place great weight on drafting comprehensive force majeure clauses at the contracting stage. A well-drafted clause will enumerate triggering events, specify the notification period and form, limit the suspension period, and provide for termination rights if the event persists beyond a defined threshold. Where such a clause exists, courts generally apply it rather than the statutory default. Where it is absent or poorly drafted, the parties are left to argue on uncertain statutory ground. Many international contracts drafted abroad contain force majeure clauses that do not conform to Mexican drafting conventions. Mexican courts will interpret such clauses but may read them differently than the drafting party intended.
The third surprise involves the interaction between force majeure and contractual penalty clauses (cláusulas penales). Under Mexican civil and commercial legislation, a penalty clause is generally enforceable as liquidated damages. However, where a force majeure event is successfully established, the debtor's liability for the penalty is typically extinguished for the period of the force majeure. Courts have issued conflicting decisions on whether partial force majeure – affecting only some obligations under a multi-obligation contract – suspends the penalty as a whole or only in proportion to the affected obligations. This ambiguity creates real exposure for parties that assumed their penalty clauses provided straightforward protection.
A common and costly mistake made by international clients is treating a force majeure notification as a unilateral suspension of obligations. Under Mexican civil procedure, invoking force majeure does not automatically stay the other party's rights. The non-invoking party retains the ability to seek an interim injunction to preserve assets or prevent disposal of goods, and to file a statement of claim demanding performance or damages. Failure to respond promptly to such steps – including by seeking a counter-injunction or engaging in early negotiation – can result in adverse procedural consequences that are difficult to reverse.
To understand the full range of dispute resolution mechanisms available when a force majeure claim becomes contested, see our overview of litigation and arbitration in Mexico, which covers both court-based proceedings and institutional arbitration options.
Cross-border and strategic dimensions for Americas clients
Force majeure and hardship disputes in Mexico rarely arise in a purely domestic context. Most commercially significant cases involve at least one foreign counterparty, a cross-border supply or services arrangement, or assets located in multiple jurisdictions. Each of these dimensions introduces complexity that the domestic statutory analysis does not fully address.
Choice-of-law questions arise frequently. A contract between a US entity and a Mexican counterparty may designate New York law, Texas law, or Mexican federal law as the governing law. Where the contract is silent, Mexican conflict-of-laws rules will determine the applicable regime. The outcome matters materially: the content of force majeure defences differs across these legal systems, and a party that assumed it was operating under one legal regime may find itself subject to another.
Arbitration clauses have become the preferred mechanism for managing this uncertainty. Institutional arbitration under the rules of the Centro de Arbitraje de México (CAM) or under ICC rules with a Mexico City seat is common in large commercial contracts. Arbitral tribunals seated in Mexico apply Mexican substantive law but are not bound by the procedural constraints of Mexican civil procedure. Critically, arbitral awards are not subject to the amparo system in the same way as court judgments. This makes arbitration materially faster and more predictable for force majeure and hardship disputes where the factual record is complex.
However, arbitration introduces its own strategic considerations. An interim injunction obtained in arbitral proceedings does not automatically carry the same enforcement weight as a court-issued injunction in Mexico. Where assets are located in Mexico and require immediate protection, a party may need to seek interim relief through the Mexican courts in parallel with the arbitral process. This dual-track approach requires coordination between procedural steps and, if mishandled, can create inconsistent positions before two different bodies.
The North American dimension deserves particular attention. The trade relationship between Mexico, the United States, and Canada. structured under the Tratado entre México, Estados Unidos y Canadá (T-MEC, the successor to NAFTA). influences how force majeure events in supply chains are characterised. T-MEC's investment chapter and its dispute resolution provisions interact with domestic contract law in ways that are not always obvious. A force majeure event that disrupts a supply chain covered by a T-MEC-compliant arrangement may engage both domestic contract law remedies and investment protection arguments. The strategic choice between pursuing domestic litigation, commercial arbitration, and investment arbitration is one that must be made early and with full awareness of the procedural consequences of each path.
For South American clients whose contracts with Mexican counterparties involve cross-border enforcement, the recognition of Mexican judgments in Argentina, Brazil, or Colombia – and vice versa – adds another layer. Mexico is a party to several international conventions on judicial cooperation, but practical enforcement of foreign judgments remains a jurisdiction-by-jurisdiction exercise. A judgment obtained in a Mexican court will require a separate recognition process (exequátur) in the enforcement jurisdiction. Arbitral awards enjoy a more streamlined path under the New York Convention, to which Mexico is a contracting state.
For businesses already engaged in a corporate dispute in Mexico where force majeure is a live issue, a comprehensive assessment of the litigation position is the essential starting point. Our dedicated corporate disputes practice in Mexico covers the full range of commercial conflict scenarios, from pre-litigation strategy through to judgment enforcement and arbitral proceedings.
To receive an expert assessment of your force majeure or hardship position under Mexican law, contact us at info@ferrazwhitmore.com.
Strategic recommendations and the outlook for this doctrine in Mexico
The practical implications of the analysis above can be organised around four strategic recommendations for businesses operating in or through Mexico.
Draft with precision, not generality. The single most effective risk-mitigation measure for a party entering a commercial contract governed by Mexican law is a carefully drafted force majeure clause. That clause should define triggering events with specificity, set out notification obligations with explicit deadlines. Address the consequences of partial force majeure, specify how costs are allocated during a force majeure period, and provide clear termination rights. A clause that simply lists "acts of God, government action. Additionally. Other events beyond the party's control" will be interpreted by Mexican courts on the basis of statutory defaults. which, as the analysis above shows, are restrictive and outcome-uncertain.
Document contemporaneously and notify promptly. A force majeure argument that is not supported by contemporaneous documentation has a limited chance of success before Mexican courts. The affected party should document the triggering event at the time it occurs, preserve all evidence of its causal effect on specific contractual obligations. Additionally. Deliver formal notification to the counterparty within whatever period the contract specifies. Where the contract is silent on notification, prompt notification remains important as a matter of good faith under both civil and commercial legislation. Late notification – even where the force majeure event itself is established – can result in the court treating the claim as waived for the pre-notification period.
Assess the hardship argument carefully before asserting it. A party that leads with a hardship or imprevisión argument in Mexican court proceedings is taking a strategic risk. The dominant judicial position is restrictive. A failed hardship argument may weaken the party's credibility before the same court on accompanying force majeure points. Hardship arguments are most viable where: the disrupting event involved a direct regulatory prohibition. the economic imbalance is extreme rather than merely material. and the party can demonstrate that the change in circumstances was wholly outside the scope of risks allocated by the contract. Where these conditions are not met, renegotiation or a negotiated amendment is often a sounder commercial approach than litigation.
Choose the dispute resolution mechanism strategically. For contracts not yet in dispute. The inclusion of an institutional arbitration clause. particularly one incorporating expedited procedures for claims below a defined value. substantially reduces the exposure to extended amparo proceedings. For contracts already in dispute, the decision to pursue court-based civil procedure or to invoke an existing arbitration clause should be made with full awareness of the timeline, cost, and enforceability implications of each path. An interim injunction may be necessary in either case to protect assets while the substantive dispute is resolved.
Looking forward, Mexican contract law doctrine on force majeure and hardship is under pressure to evolve. The disruptions of recent years – public health emergencies, regulatory supply-chain interventions, commodity volatility, and climate-related events – have produced a volume of litigation that is pushing courts toward more nuanced positions. There are signs that some Collegiate Circuit Courts are moving toward a slightly more receptive posture on imprevisión, particularly in long-term infrastructure and energy contracts where the economic consequences of rigid enforcement are most visible. However, the Supreme Court has not yet issued definitive jurisprudencia that would require lower courts to adopt a more expansive approach. The law remains in a period of interpretive tension. Parties who assume the doctrine is either clearly available or clearly unavailable are equally mistaken.
Frequently asked questions
Q: Does Mexican law automatically excuse contractual performance when a force majeure event occurs?
A: Not automatically. Mexican civil legislation requires the affected party to demonstrate that the event was unforeseeable or irresistible. That it directly caused the failure to perform. Additionally, that the party was not already in default at the time of the event. Courts in Mexico apply a strict causation test. Meeting the doctrinal threshold in practice demands contemporaneous documentation and, in many cases, formal notification to the counterparty.
Q: Is hardship – where performance becomes excessively burdensome rather than impossible – recognised as a defence in Mexico?
A: This is one of the most contested areas in Mexican contract law. The civil codes of several federal entities and the Federal Civil Code contain provisions on excessive onerousness, but courts have historically applied them narrowly. The dominant judicial position requires near-impossibility, not mere economic difficulty. Parties relying exclusively on a hardship argument without contractual backup face a high risk of dismissal.
Q: How long does a force majeure or hardship dispute typically take to resolve in Mexican courts?
A: Timeline varies considerably by jurisdiction and court tier. A first-instance civil proceeding in a major commercial centre may take between one and three years to reach a final judgment. Appeals and constitutional review proceedings (amparo) can extend the total timeline significantly. Parties with well-drafted arbitration clauses can often reach a final award faster, particularly under institutional rules that permit expedited procedures.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our Americas practice covers force majeure and hardship disputes, commercial litigation, contract renegotiation, and cross-border enforcement across Mexico, Brazil, Colombia, Chile, and Argentina. We combine Portuguese civil law expertise with English common law tradition – a dual-tradition perspective that is directly relevant when advising clients on civil law force majeure doctrine in markets such as Mexico. Our attorneys have advised on commercial contract disputes across both civil law and common law systems, including matters before the Centro de Arbitraje de México and under ICC institutional rules. Engaging a lawyer in Mexico with cross-border experience is essential when force majeure and hardship arguments intersect with multi-jurisdictional supply chains or investment arrangements. As an international law firm advising on Mexico, Ferraz & Whitmore provides the strategic depth that domestic-only counsel cannot match. To discuss how Mexican contract law applies to your specific situation, 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.