A hardship clause in contract law is a provision that lets either party ask to renegotiate the deal when unforeseen events dramatically shift its economic balance. It covers the gap between “I literally cannot perform” and “performing will ruin me.” Performance is still physically possible, but circumstances have changed so severely that holding a party to the original terms would destroy the bargain both sides agreed to. These clauses show up most often in long-term commercial agreements, where years or decades of changing conditions make some kind of safety valve necessary.
How a Hardship Clause Differs From Force Majeure
People mix these up constantly, and the difference controls what you can actually do about a problem. Force majeure applies when performance has become impossible because of an event outside your control. The result is suspension or discharge of the obligation. Hardship applies when performance is still possible but has become economically senseless. The result is renegotiation, not an automatic excuse.1International Chamber of Commerce. ICC Force Majeure and Hardship Clauses
A factory destroyed by a hurricane is force majeure. A factory still standing but whose raw materials have tripled in price because of a trade embargo is hardship. Nothing to renegotiate in the first case; plenty to renegotiate in the second.
The distinction has teeth. In a case involving U.S.–China trade tariffs, a federal court held that higher tariffs merely made performance unprofitable, which was a risk the seller had assumed under the contract, and therefore did not qualify as force majeure. A hardship clause, had the contract included one, would have given the seller a route to renegotiation that force majeure couldn’t.
What Qualifies as Hardship
Under the UNIDROIT Principles of International Commercial Contracts, hardship exists when events fundamentally alter the equilibrium of the contract, either because one party’s cost of performance has increased or because the value of what it receives in return has diminished. Four conditions all have to be met: the events occurred or became known after signing, the disadvantaged party could not reasonably have anticipated them, the events are beyond that party’s control, and the party did not assume the risk of those events.2UNIDROIT. UNIDROIT Principles of International Commercial Contracts 2016
“Fundamentally” is doing real work in that definition. A modest cost increase or minor supply delay doesn’t count. The disruption has to be severe enough that forcing performance under the original terms would destroy the deal. Well-drafted clauses pin this down with a measurable threshold, such as a cost increase of 25 percent or more above the original contract price.
Timing also matters. Hardship can only be claimed before the affected obligations have been fully performed. If you’ve already delivered the goods or finished the work, you can’t go back and invoke hardship over costs you already absorbed. Partial performance is different: if conditions shift while you’re partway through, you can raise a hardship claim for what’s still ahead of you.
Why U.S. Law Makes the Written Clause Essential
If your contract is governed by U.S. law, the backdrop for hardship is much less forgiving than in Europe or under international frameworks. American courts almost never rewrite contract terms because circumstances changed. The system runs binary: either the contract is enforced as written, or it is voided entirely. There is no widely recognized mechanism for a U.S. court to adjust a contract’s price or delivery terms just because they’ve become burdensome.
The closest doctrine is commercial impracticability under the Uniform Commercial Code. Section 2-615 says a seller’s failure to deliver is not a breach if performance has been made impracticable by an event whose non-occurrence was a basic assumption of the contract.3Legal Information Institute. UCC 2-615 – Excuse by Failure of Presupposed Conditions The bar is high. Courts have read “impracticable” to mean well beyond “expensive” or “unprofitable,” and a seller generally cannot invoke the section just because costs rose sharply.
The practical consequence: if your contract sits under U.S. law, you cannot rely on a court to save you from a deal that got worse. The hardship clause has to be in the document itself, with specific terms about what happens when conditions change. Without one, you’re stuck with what you signed.
Outside the United States, hardship gets more doctrinal support. Civil law systems generally treat a contract as establishing an economic balance, and if unforeseen events disturb that balance, the contract should be adjusted rather than enforced to the letter or voided. The UNIDROIT Principles give the disadvantaged party a right to request renegotiation without undue delay. If the parties can’t agree within a reasonable time, either side can go to court, and the court can either terminate the contract on terms it sets or adapt the contract to restore its balance.4UNIDROIT. Chapter 6 Performance – Section 2 Hardship The International Chamber of Commerce publishes a widely used model hardship clause for cross-border agreements, with options the parties pick at drafting: the invoking party may terminate, either party may ask a court or arbitrator to adapt or terminate, or either party may ask a court to declare termination.5International Chamber of Commerce. ICC Force Majeure and Hardship Clauses March 2020
Situations That Typically Trigger Hardship
Any event meeting the definition can qualify, but the common triggers fall into a few groups.
- Economic upheaval such as hyperinflation, currency collapse, or severe commodity price spikes that make raw materials or production vastly more expensive than anyone projected.
- Regulatory or legislative changes, including new environmental rules, sanctions, export controls, or tariffs. Courts have been skeptical of tariffs as force majeure, but a hardship clause specifically written to cover government-imposed cost increases can give a contractual remedy where the common law would not.
- Natural disasters and pandemics. COVID-19 produced supply chain disruptions and cost increases that many parties argued met the hardship threshold. A flood that doesn’t destroy your factory but cuts off its only transportation route for months is the kind of continued-but-devastating scenario hardship clauses are built for.
- Supply chain disruptions, meaning severe shortages of labor or materials that push costs far past projections.
The common thread is that the event must be genuinely unforeseeable and outside the disadvantaged party’s control. A company that signed a fixed-price contract in an obviously volatile market will have a harder time claiming hardship than one that entered a long-term agreement during stable conditions.
What Makes a Hardship Clause Enforceable
A clause that just says “the parties will renegotiate in good faith if circumstances change” sits dangerously close to an unenforceable agreement to agree. U.S. courts are especially hostile to vague renegotiation duties. To hold up, a hardship clause needs specificity in several places.
- A measurable trigger. Objective criteria, such as a defined percentage threshold for cost increases, are far more enforceable than “substantial change in circumstances.”
- A written notice requirement. Require the disadvantaged party to notify the other side in writing within a set window, commonly 10 to 30 days after becoming aware of the hardship event, with the grounds explained.
- A continued performance obligation. State explicitly that requesting renegotiation does not excuse the disadvantaged party from continuing to perform. Both the UNIDROIT Principles and the ICC model clause include this, and leaving it out invites one side to treat a hardship claim as a reason to stop work.4UNIDROIT. Chapter 6 Performance – Section 2 Hardship
- A fixed renegotiation period, such as 30 or 60 days. Open-ended obligations create uncertainty and invite delay.
- A fallback dispute resolution mechanism: mediation, arbitration, court adaptation, or termination. Without a fallback, a failed renegotiation leaves both parties in limbo.
- Clear termination rights, specifying whether the contract can be terminated if negotiations and dispute resolution both fail, and on what terms.
The tighter the drafting, the less room for argument about whether anyone is actually obligated to do anything. Vague hardship language tends to be treated as aspirational rather than binding.
What Happens After the Clause Is Invoked
The process usually runs in a predictable order. The disadvantaged party sends written notice identifying the hardship event, explaining how it meets the contractual definition, and proposing adjusted terms. Common adjustments are revised pricing, extended delivery schedules, reduced quantities, or payment deferrals.
The other party then chooses: agree to modified terms, offer counter-modifications, or dispute that hardship exists at all. During this period, both sides keep performing under the original terms. This part surprises people. Invoking hardship doesn’t let you pause. You remain on the hook for the original obligations until the clause produces a result.
If negotiations succeed, the parties sign an amendment reflecting the new terms. If they fail, the dispute resolution mechanism written into the clause takes over. Under the ICC model, that could mean arbitration, court intervention, or termination depending on the option selected at drafting.5International Chamber of Commerce. ICC Force Majeure and Hardship Clauses March 2020 Under the UNIDROIT framework, a court that finds hardship may adapt the contract or terminate it on terms the court sets.4UNIDROIT. Chapter 6 Performance – Section 2 Hardship
The point of the clause is preservation, not destruction. A functioning hardship clause keeps a commercial relationship alive through conditions neither side planned for. Termination is a last resort, used when adaptation simply isn’t workable. The clause only does its job if both parties engage with it; a party that ignores a legitimate hardship notice and insists on the original terms is gambling that a court or arbitrator won’t later find the threshold was met and impose terms less favorable than negotiation would have produced.