A supply chain collapses overnight. A key raw material becomes unavailable. A government measure shuts down an entire sector without notice. In Belgium, businesses facing these disruptions must choose quickly between two distinct legal responses – force majeure and hardship – and that choice determines whether a contract survives, is suspended, or is unwound entirely. Getting it wrong carries significant commercial consequences, and the Belgian courts have not always made the boundary between the two doctrines easy to draw.
Force majeure and hardship in Belgium are now addressed by the reformed Belgian civil law that entered into force in 2023, introducing statutory hardship provisions for the first time alongside the pre-existing force majeure doctrine. Force majeure excuses non-performance where an obstacle is insurmountable, unforeseeable, and external to the debtor. Hardship – known in Belgian legal terminology as imprévision (changed circumstances doctrine) – applies where performance remains physically possible but has become excessively onerous due to altered economic conditions. The distinction carries profound consequences for remedies, timelines, and litigation strategy.
This analysis examines the doctrinal foundations of both doctrines, reviews competing court interpretations, maps the gap between statute and actual judicial practice. Additionally. Draws out the strategic implications for international businesses operating across Belgium and the broader European market.
Doctrinal foundations: force majeure and the arrival of hardship in Belgian law
Belgian commercial law operated for most of its modern history under a civil code inherited from the Napoleonic tradition. That code recognised force majeure as a ground for releasing a debtor from contractual obligations when performance became impossible through an external, unforeseeable, and irresistible event. Belgian courts consistently required all three elements to be established cumulatively. A debtor who could foresee the disruptive event at the time of contracting, or who contributed to it through their own conduct, could not invoke force majeure successfully.
The notion of overmacht (force majeure under Dutch-language Belgian legal usage) or force majeure (under French-language usage) was therefore a doctrine of impossibility, not of hardship. This distinction was deliberate and consistently maintained. Belgian courts refused for decades to recognise imprévision as a ground for contractual renegotiation or judicial revision. The dominant position, reinforced repeatedly by the Cour de cassation (Court of Cassation of Belgium). Held that a mere deterioration in economic conditions. however severe. did not excuse a party from performance when performance remained physically achievable.
This position placed Belgium at odds with several civil law neighbours. French law, after decades of similar resistance, introduced a statutory hardship mechanism through its own civil code reform. The Netherlands had already recognised changed circumstances as a ground for judicial modification of contracts. Germany's civil legislation had long included provisions allowing courts to adjust or dissolve contracts where the basis of the transaction had fundamentally changed.
Belgium's reform of its civil law obligations, which took effect in 2023, bridged this gap. The new Belgian civil legislation now contains an explicit hardship provision. Where circumstances change after the conclusion of a contract. Making performance excessively burdensome for one party in a way that was unforeseeable at the time of contracting and was not assumed as a contractual risk by that party, the affected party may request renegotiation. If renegotiation fails within a reasonable period, either party may bring the matter before a court. The court may then modify the contract to restore its equilibrium or, in exceptional cases, dissolve it.
Force majeure and hardship therefore now coexist as separate statutory mechanisms in Belgian contract law. Their thresholds, consequences, and procedural requirements differ materially. Understanding where one ends and the other begins is the central challenge for practitioners – and for international clients who enter Belgian contracts without appreciating this structure.
Competing court interpretations and the gap between statute and practice
The introduction of a statutory hardship provision resolves the doctrinal uncertainty at the legislative level. It does not, however, resolve the interpretive questions that courts must now address. Belgian commercial courts – including the Tribunal de l'entreprise (enterprise court, the specialist commercial court in Belgium) – are working through a body of cases that tests the precise scope of both doctrines.
Several contested questions have emerged in litigation. First, courts have divided over the threshold of "excessiveness" required to trigger hardship. Some chambers have applied a strict economic analysis, requiring the affected party to demonstrate that the cost of performance has risen to a level that fundamentally alters the contractual balance. Others have adopted a more contextual approach, looking at the overall commercial purpose of the contract and whether that purpose has been defeated by the change in circumstances. The absence of a precise statutory metric leaves room for divergent outcomes across different judicial divisions.
Second, the question of foreseeability has proven contentious. Courts have had to address whether macroeconomic disruptions. energy price spikes, commodity shortages. Supply chain fractures. were truly unforeseeable at the time of contracting, particularly where the contract was concluded in a period of recognised market volatility. In several cases, courts have rejected hardship claims on the basis that a prudent professional party should have anticipated market fluctuations and built pricing flexibility or review mechanisms into the contract. This de facto requirement of professional foresight sits uncomfortably with the statutory text but reflects a deep-rooted judicial reluctance to relieve sophisticated commercial parties from bargains they freely struck.
Third, the interplay between force majeure and hardship has generated procedural complexity. A party invoking force majeure is typically seeking discharge from performance, with the contract ending or suspended. A party invoking hardship is seeking renegotiation or judicial revision, with the contract continuing in modified form. Courts have encountered situations where a party initially invoked force majeure, failed to establish impossibility, and then sought to fall back on hardship as an alternative ground. Belgian courts have shown limited tolerance for this sequential approach, in some cases treating the initial force majeure claim as an election that forecloses the hardship route. This interpretive tendency – though not a uniform rule – increases the risk of strategic error at the outset of litigation.
The gap between statute and practice also appears in the domain of interim relief. A party seeking to suspend contractual obligations during renegotiation may apply to the juge des référés (interim injunction judge in Belgium) for provisional measures. The threshold for such an interim injunction – urgency and the appearance of legal right – is distinct from the threshold for establishing hardship on the merits. Courts have in some instances granted provisional suspensions of payment obligations while renegotiation was ongoing, recognising that waiting for a full merits determination could cause irreversible commercial harm. In other cases, courts have refused such measures, emphasising the principle that interim orders should not anticipate the final judgment on the substantive claim.
For clients managing a corporate dispute in Belgium involving contractual disruption, this inconsistency in interim relief practice means that the outcome of an emergency application is highly fact-specific and court-specific. Preparation of the statement of claim and the supporting evidence must therefore be pitched at both the interim and full-merits threshold simultaneously.
A further practical gap concerns the obligation to renegotiate in good faith before approaching the courts. The statutory hardship provision requires the affected party to request renegotiation as a prerequisite to judicial intervention. Courts have interpreted this requirement strictly in some cases. Where a party moves directly to court filing without a documented renegotiation attempt – or where the attempt was perfunctory – courts have declined to hear the hardship claim on its merits. This has created a procedural bottleneck that penalises parties who, under commercial pressure, skip the renegotiation step in favour of immediate legal action.
Force majeure in practice: conditions, consequences, and common errors
Despite the reform, force majeure remains the more frequently invoked doctrine in Belgian commercial litigation. Its conditions are well established. The event must be external to the debtor – meaning it cannot arise from the debtor's own conduct, financial position, or internal organisation. It must be unforeseeable at the date of the contract – not merely surprising, but genuinely outside the range of events that a reasonable party would have considered when negotiating. And it must be irresistible – the debtor must have been unable to overcome the obstacle through reasonable efforts and at proportionate cost.
Belgian civil procedure requires the party invoking force majeure to bear the burden of proof on all three conditions. A well-constructed statement of claim will address each element with documentary evidence: correspondence establishing when the disruptive event occurred. Evidence that the debtor had no reasonable means of alternative performance. Additionally, contemporaneous documents showing that the debtor did not assume the relevant risk contractually.
Temporary force majeure is an important and sometimes underused concept in Belgian law. Where the impossibility is temporary rather than permanent, force majeure suspends the obligation for the duration of the disruptive event rather than extinguishing it. Once the obstacle clears, performance must resume. Belgian courts have applied this principle carefully, rejecting claims for permanent discharge where the impossibility was in substance temporary, even if prolonged. A debtor who treats a temporary force majeure event as grounds for permanent contract termination risks liability for wrongful repudiation.
Partial force majeure – where performance of part of a contractual obligation is rendered impossible – follows a similar logic. Courts have held that partial impossibility excuses only the affected portion of performance. The debtor must continue to perform the remaining obligations. This creates practical complexity in contracts involving multiple deliverables or ongoing service relationships, where the affected party must identify precisely which elements of performance are covered by the force majeure claim and which are not.
A common error made by international clients is to conflate contractual force majeure clauses with the statutory doctrine. Many Belgian commercial contracts contain detailed force majeure clauses that define covered events, notification requirements, and consequences. These clauses can expand or restrict the statutory protection. A clause that lists specific triggering events may be interpreted as exhaustive, excluding events not listed even if they would satisfy the statutory conditions. Conversely, a broadly drafted clause may be interpreted as providing protection beyond the statutory threshold. Practitioners must analyse both the contractual clause and the statutory position, and advise on which regime applies and in what order.
Notification obligations are particularly critical. Many contractual force majeure clauses require the affected party to give notice within a specified period – sometimes as short as a few days after the disruptive event. Failure to give timely notice can result in waiver of the force majeure defence, even where the underlying conditions are fully established. Belgian courts have enforced these notice provisions strictly, particularly in contracts between commercial parties of comparable bargaining strength. A business that misses a contractual notification deadline through internal administrative delay cannot rely on the statutory doctrine to cure that procedural failure.
Cross-border implications and strategic considerations for European clients
Belgium's dual force majeure and hardship regime has significant implications for businesses operating across multiple European jurisdictions. Many cross-border contracts governed by Belgian law are entered into by parties from jurisdictions with different doctrinal traditions. A German counterparty accustomed to a broad changed-circumstances doctrine will be surprised to find that hardship claims in Belgium require a renegotiation phase and court approval before modification is ordered. A UK-based party operating under English law principles – where common law has historically resisted implied hardship relief – may underestimate the availability of Belgian statutory hardship protection and fail to invoke it in time.
The interplay with EU contract law instruments adds further complexity. Where a contract involves cross-border supply of goods within the EU, the UN Convention on Contracts for the International Sale of Goods may apply unless expressly excluded. That convention contains its own exemption for impediments beyond a party's control, which parallels force majeure but is not identical to the Belgian statutory regime. Practitioners must identify at the outset which legal system governs each aspect of the contractual relationship and whether multiple regimes apply concurrently.
Choice-of-law clauses in contracts governed by Belgian law but negotiated between parties from different jurisdictions raise a related issue. Under EU private international law rules, the parties' choice of governing law does not displace mandatory provisions of the law of the country where the contract is to be performed. Belgian mandatory rules – including protections under consumer legislation or sector-specific regulation – may therefore apply even where the parties have chosen a different governing law. This interaction between contractual autonomy and mandatory rules can affect whether force majeure or hardship arguments are available, and under which legal system they must be assessed.
For parties to Belgian contracts that are part of a wider European transaction. a cross-border supply agreement, a long-term service contract linking entities in several EU member states. Alternatively. A financing arrangement with Belgian-law security documents. the strategic question is which jurisdiction to use as the battleground for a disruption-related dispute. Where Belgian courts have jurisdiction, the full statutory regime applies. Where the parties have agreed to arbitration, the arbitral tribunal must apply Belgian law to the merits but is not bound by Belgian procedural rules for interim relief. Potentially allowing greater flexibility in managing the disruption period.
Businesses with significant Belgian contractual exposure should also consider litigation and arbitration strategy in Belgium before a crisis arises. Proactive contract auditing – reviewing force majeure clauses, renegotiation mechanisms, and governing law provisions – reduces exposure significantly. The most common strategic error is to treat force majeure and hardship as emergency doctrines invoked only when crisis strikes. In practice, the best outcomes are achieved by parties who have already documented risk allocation in the contract. Established monitoring mechanisms for trigger events. Additionally, prepared a response protocol that covers notification, renegotiation requests, and interim relief applications.
Enforcement of Belgian judgments within the EU benefits from the Brussels Ibis Regulation, which provides a streamlined recognition and enforcement mechanism across member states. A Belgian commercial court judgment ordering contract modification under the hardship provisions. Alternatively, declaring a force majeure defence established. Is directly enforceable in other EU member states without a separate judgment enforcement proceeding in each country. This gives Belgian litigation a structural advantage for European clients seeking outcomes that travel across borders.
To discuss how Belgian force majeure or hardship doctrine applies to your specific contractual situation, contact us at info@ferrazwhitmore.com.
Strategic recommendations and the outlook for Belgian contract law
The 2023 reform represents the most significant overhaul of Belgian contract law obligations in two centuries. Its full effect on commercial litigation will take several years to become clear. Courts are still developing consistent approaches to the key interpretive questions – the threshold of excessiveness, the scope of foreseeability, and the procedural consequences of failing to renegotiate in good faith. Practitioners and clients must work in an environment of developing jurisprudence rather than settled doctrine.
Several strategic recommendations emerge from the current state of the law. First, contract drafting should be revisited in light of the reform. Clauses that predate the 2023 regime may not adequately address the new hardship mechanism. Parties should consider whether to incorporate explicit hardship provisions that modify or supplement the statutory default. including specifying the threshold of burden required to trigger renegotiation. The timeline for renegotiation. Additionally, the consequences of failed renegotiation. Equally, parties who wish to exclude the statutory hardship mechanism entirely should do so expressly, as the new Belgian civil legislation permits contracting out of the hardship regime in commercial contracts.
Second, notification and documentation protocols should be established before disruption occurs. A business that experiences a potential force majeure or hardship trigger event should immediately document the event, its commercial impact, and its relationship to the contractual obligations. Internal records created contemporaneously carry substantially more evidentiary weight than reconstructed accounts prepared during litigation. Belgian civil procedure places the burden of proof on the party invoking the doctrine, and that burden is discharged most effectively through contemporaneous documentary evidence.
Third, the choice between force majeure and hardship should be made deliberately and early. The sequential approach – attempting force majeure and then falling back on hardship – carries litigation risk, as discussed above. A party whose situation clearly falls within hardship territory should frame its claim accordingly from the outset, request renegotiation formally and in writing, and document the renegotiation process carefully. If renegotiation fails, the court filing should reflect a complete procedural history that demonstrates compliance with the statutory prerequisites.
Fourth, interim relief should be considered as part of the overall litigation strategy, not as an afterthought. An application to the interim injunction court for provisional suspension of payment obligations or delivery requirements can provide commercial breathing room during renegotiation. The application must be supported by evidence of urgency and the appearance of a legally defensible position. Where these conditions are met, Belgian courts have shown willingness to grant provisional measures, particularly where the alternative is irreversible commercial harm.
The outlook for Belgian contract law is one of gradual stabilisation. The courts will progressively narrow the interpretive disputes identified above, and a clearer body of commercial court decisions will emerge. For now, the practical approach requires careful doctrinal analysis, disciplined procedural planning, and early engagement with specialist Belgian counsel. A parallel comparison with how Portuguese courts have addressed similar disruption-related contract claims can be found in our analysis of force majeure and hardship in Portugal. This illustrates the variation in civil law approaches across the EU even under structurally similar statutory regimes.
For a tailored strategy on managing contractual disruption under Belgian law, reach out to info@ferrazwhitmore.com.
Self-assessment: identifying your exposure under Belgian contract law
The Belgian force majeure and hardship regime applies to your situation if the following conditions are met.
Force majeure is potentially available if: your contractual performance has become physically impossible. Not merely more costly or difficult. the cause of impossibility is external to your organisation and could not reasonably have been foreseen when the contract was signed. and you have not contractually assumed the risk of the event in question. Before invoking force majeure, verify that your contract does not contain an exhaustive definition of covered events that would exclude your situation. That you have complied with any contractual notification obligations. Additionally, that the impossibility is genuinely irresistible rather than merely inconvenient or expensive.
Hardship is potentially available if: performance remains physically possible but has become excessively burdensome due to a change in circumstances after the contract was concluded. the change was unforeseeable at the time of contracting. and the risk of the change was not expressly assumed by you in the contract. Before invoking hardship, verify that you have a documented basis for the claim of excessiveness, that you are prepared to engage genuinely in renegotiation, and that your contract does not exclude the statutory hardship mechanism.
A shift from hardship to force majeure – or the reverse – may be required if the circumstances evolve during the disruption period. Hardship may become force majeure if the level of burden escalates to the point of true impossibility. Force majeure may revert to hardship if a previously impossible obstacle becomes merely difficult. Identifying these transition points early, and adjusting the legal position accordingly, is critical to maintaining a coherent position in any subsequent litigation or arbitration.
Frequently asked questions
Q: Can a Belgian commercial contract exclude the statutory hardship mechanism introduced by the 2023 reform?
A: Yes. Belgian civil legislation allows commercial parties to exclude the hardship provision by express contractual agreement. This is a significant option for parties who prefer certainty of performance over judicial revisability. However, the exclusion must be clear and deliberate. A generic "entire agreement" clause is unlikely to be interpreted as a waiver of the statutory mechanism without more specific language. Engaging a lawyer in Belgium with experience in contract drafting under the reformed civil code is advisable when including such a clause.
Q: How long does a Belgian court typically take to resolve a hardship or force majeure dispute on the merits?
A: A full merits determination before a Tribunal de l'entreprise typically takes between twelve and twenty-four months from the initial court filing. Depending on the complexity of the dispute and the court's caseload in the relevant judicial district. Interim injunction proceedings before the juge des référés are significantly faster – decisions on provisional measures can be obtained within days to weeks. Parties managing an active contractual disruption should consider whether interim civil procedure mechanisms can provide commercial protection while the substantive claim proceeds.
Q: Does invoking force majeure under a Belgian contract automatically terminate the contract?
A: No – this is one of the most common misconceptions about Belgian force majeure doctrine. Force majeure may suspend a contractual obligation where the impossibility is temporary, in which case performance must resume when the obstacle clears. Permanent discharge and contract termination arise only where the impossibility is definitive and performance can never be resumed. Treating a temporary force majeure event as permanent termination exposes the invoking party to a wrongful repudiation claim. A law firm in Belgium advising on force majeure situations will assess the nature and duration of the impossibility carefully before recommending termination.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions on commercial litigation, contract disputes, and cross-border enforcement. Our team combines Portuguese civil law expertise with English common law tradition to deliver practical legal solutions in force majeure, hardship, and contract disruption matters under Belgian and European law. We work with international entrepreneurs, institutional investors, and in-house legal teams who need results-oriented counsel across multiple legal systems. As a law firm in Belgium and across continental Europe, we support clients through every stage of contractual disruption. from early-stage renegotiation strategy through interim injunction proceedings to full commercial court litigation and judgment enforcement. The firm's commercial disputes practice covers civil law and common law jurisdictions across Europe, supported by a network of local counsel. Our attorneys have advised on force majeure and hardship matters across both civil law and common law systems, including before specialist commercial courts and international arbitral bodies. To discuss how Belgian contract law applies to your 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.