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Force Majeure Clause: Triggers, Notice, and Mitigation

Also known as: act of God, FM

ByArshita Anand

A force majeure clause excuses a party from performing when something outside its control makes performance impossible or impractical, without that party being in breach. It only covers what it lists or describes, so the drafting decides whether a pandemic, a supplier failure, or a cyberattack actually counts. The clause is not a free pass: it usually requires prompt notice, a duty to mitigate, and most clauses carve out the obligation to pay money.

Reviewed and corrected on 12 October 2026. This is general information, not legal advice; check the cited statute or opinion before relying on it.

TL;DR

  • A force majeure clause suspends or excuses performance when a listed, uncontrollable event prevents it. New York courts read it narrowly, so the event generally has to fit the clause's list or its catch-all; other states vary.
  • Since 2020, many clauses name epidemics, government action, and supply-chain and cyber events explicitly rather than relying on "act of God," because the wording decides whether an event is covered.
  • The clause comes with duties: prompt written notice, a duty to mitigate and resume, and often a termination right if the event drags on past a set period (often 30 to 90 days in contracts, a drafting convention).
  • Most clauses carve out payment. Inability to pay, market downturns, and a party's own cost increases are commonly excluded, but check the text, because the clause controls.
  • The most common review miss is a catch-all that does not require the event to be unforeseeable and beyond control, which either over-excuses or, when too narrow, fails to cover the event you actually face.

What a force majeure clause actually does

The clause reallocates the risk of the truly uncontrollable. Three mechanics matter.

1. It defines the trigger. A list of events (natural disasters, war, government action, epidemics, labor actions, utility and supply failures) plus, usually, a catch-all for other events "beyond the reasonable control" of the party and not caused by its fault. The trigger is everything: an event not within the list or the catch-all is not excused.

2. It sets the effect. While the event continues, the affected party's performance is suspended (or its deadlines extended) and it is not in breach. The clause says what is excused and what is not, and good drafting carves out payment obligations.

3. It imposes duties. The affected party must usually give prompt notice, use reasonable efforts to mitigate and work around the event, and resume as soon as it can. If the event lasts beyond a stated period, either party often gets a right to terminate so neither is trapped indefinitely.

Why it matters: the dollars at stake

Consider a manufacturer with a $5M annual supply contract. A government export ban cuts off a critical component, and the manufacturer cannot deliver for four months.

This is an illustrative example. The outcome turns on the clause.

  • With a force majeure clause that names government action and supply-chain disruption, the manufacturer gives notice, performance is suspended, and it owes no breach damages for the four-month gap.
  • With a clause that lists only "acts of God, war, and natural disaster", the export ban may not fit, the manufacturer is in breach, and it faces damages plus a possible termination for cause.

Same ban, same delay. Whether the manufacturer owes nothing or owes breach damages and loses the contract comes down to whether the clause named the kind of event that actually happened. That is why the event list is worth real drafting time, not a copy-paste.

Who wants what

Party invoking force majeure (supplier)Party relying on performance (buyer)
Event listBroad, with an open catch-allNarrow, specific, genuinely uncontrollable events
ForeseeabilityNo unforeseeability requirementEvent must be unforeseeable and beyond control
NoticeGenerous notice windowPrompt notice as a condition of relief
MitigationReasonable efforts onlyActive duty to mitigate and find alternatives
PaymentSuspend payment tooPayment never excused
TerminationLong runway before terminationRight to terminate after a short period

The pattern: the supplier wants a broad trigger and to suspend everything including payment; the buyer wants a tight trigger, a hard duty to mitigate, payment kept alive, and an exit if the event drags on.

Market-standard language

A typical modern force majeure clause reads close to this:

FORCE MAJEURE.

Neither party will be liable for any delay or failure to perform (other
than a failure to pay amounts due) to the extent caused by an event
beyond its reasonable control that it could not have avoided by
reasonable diligence, including acts of God, fire, flood, earthquake,
epidemic or pandemic, war, terrorism, civil unrest, government action or
order, embargo or sanctions, labor disputes, and failure of utilities,
carriers, or telecommunications networks (a "Force Majeure Event").

The affected party will give the other party written notice within
[ten] days of the Force Majeure Event, use commercially reasonable
efforts to mitigate and resume performance, and keep the other party
informed. If a Force Majeure Event continues for more than [sixty]
consecutive days, either party may terminate this Agreement on written
notice without liability for the excused non-performance.

Three details carry the weight. The parenthetical "(other than a failure to pay amounts due)" keeps payment alive. "That it could not have avoided by reasonable diligence" builds the unforeseeability and control test into the trigger. The 60-day termination right stops either side from being trapped in a dead contract.

The negotiation: standard, fallback, walk-away

Negotiate the trigger, the duties, and the exit separately.

IssueOpening position (supplier)Fallback both sides acceptWalk-away (buyer)
Event listBroad list plus open catch-allSpecific list plus controlled catch-allClosed list, no catch-all
Foreseeability testNone"Beyond reasonable control and not avoidable"Event must be unforeseeable at signing
PaymentPayment suspended tooPayment always due, performance suspendedPayment due, no excuse
Notice30 days10 days, writtenNotice as a strict condition of relief
MitigationReasonable effortsCommercially reasonable efforts to work aroundHard duty to source alternatives
Termination120+ days30 to 90 days continuous event30 days, then either side exits

The usual landing zone is a specific, modern event list with a controlled catch-all, payment kept alive, prompt written notice, a real mitigation duty, and a 30-to-90-day continuous-event termination right for either party.

Common carve-outs / variations

Force majeure clauses vary by what they include, exclude, and how they end:

  • Named modern events. Post-2020 clauses commonly name epidemics and pandemics, government orders, supply-chain failures, sanctions, and cyberattacks, because courts in some states read these clauses narrowly (see below) and a generic "act of God" may not cover them.
  • Express exclusions. Many clauses carve out the events that are not force majeure: payment obligations, market or economic conditions, a party's own financial difficulty, and events the affected party caused or could have prevented.
  • Subcontractor and supplier failure. Whether a supplier's failure counts is heavily negotiated. Buyers want it excluded unless the supplier itself was hit by force majeure; suppliers want it included.
  • Allocation duty. If a force majeure event cuts a supplier's capacity, an allocation clause can require it to share remaining supply fairly among customers rather than cutting one off entirely.
  • Termination and extension. Either an automatic deadline extension for short events or a termination right for long ones, usually keyed to a continuous-day threshold.

A buyer-protective exclusions fallback often reads:

A Force Majeure Event does not include: (a) any obligation to make a
payment; (b) general economic or market conditions, including a change
in cost or availability of materials; (c) a party's financial inability
to perform; or (d) any event caused by the affected party's negligence
or breach of this Agreement.

Jurisdiction and enforceability notes

Force majeure clauses are enforced according to their terms, and the governing state's approach to reading them matters. We read the cases below in the opinions themselves in October 2026.

  • New York reads them narrowly. The New York Court of Appeals held that "[o]rdinarily, only if the force majeure clause specifically includes the event that actually prevents a party's performance will that party be excused," and that general catch-all words "are confined to things of the same kind or nature as the particular matters mentioned" (Kel Kim Corp. v. Central Markets, Inc., 70 N.Y.2d 900, 902-03 (1987), where a tenant's inability to get liability insurance was not within a clause listing labor disputes, utility failure, governmental regulations, war, weather and similar causes). We did not survey other states; check the governing state's cases.
  • Wording can still reach a pandemic. In JN Contemporary Art LLC v. Phillips Auctioneers LLC, 29 F.4th 118 (2d Cir. 2022), applying New York law, the Second Circuit held that COVID-19 and the governor's orders restricting nonessential businesses were "circumstances beyond our or your reasonable control" under a clause that continued "including, without limitation, as a result of natural disaster, fire, flood, general strike, war, armed conflict, terrorist attack or nuclear or chemical contamination." The court did not decide whether COVID-19 is a natural disaster, and it relied on the clause's broad catch-all and its statement that the list did not limit it. A clause with a narrower catch-all, or none, can come out differently.
  • Foreseeability. Kel Kim says the common-law impossibility defense requires "an unanticipated event that could not have been foreseen or guarded against in the contract." Whether a force majeure clause adds its own foreseeability or avoidability test depends on the clause and the state. Not verified in our October 2026 review for other states. Writing the test into the clause ("could not have avoided by reasonable diligence") removes the doubt.
  • Common-law fallbacks. Without a clause, impossibility, impracticability and frustration may apply, but the New York Court of Appeals said such defenses "have been applied narrowly" and performance "should be excused only in extreme circumstances" (Kel Kim, 70 N.Y.2d 900). They are not a reliable substitute for a well-drafted clause.
  • Sale of goods. Under UCC section 2-615, delay or non-delivery by a seller who gives the notice the section requires "is not a breach of his duty under a contract for sale if performance as agreed has been made impracticable by the occurrence of a contingency the non-occurrence of which was a basic assumption on which the contract was made or by compliance in good faith with any applicable foreign or domestic governmental regulation or order." The section applies "[e]xcept so far as a seller may have assumed a greater obligation." Where the cause affects only part of the seller's capacity, the seller "must allocate production and deliveries among his customers" in a fair and reasonable manner (2-615(b)), and must "notify the buyer seasonably" (2-615(c)). Under section 2-616 the buyer may then terminate or agree to take its available quota, and the contract lapses for affected deliveries if the buyer does not respond within a reasonable time not exceeding thirty days. These are the uniform text; each state's enacted version controls.

This is general information, not legal advice for a specific deal. Enforceability turns on the governing law, how the clause is worded, and the facts, so confirm against the controlling law before relying on force majeure.

Review checklist: red flags to catch

  • The event list is dated ("act of God, war, natural disaster") and omits epidemics, government action, supply-chain, and cyber events.
  • The catch-all has no unforeseeability or beyond-control test, so it can excuse ordinary business problems.
  • Payment is not carved out, letting a party suspend payment under cover of force majeure.
  • No notice deadline, or notice is not required at all, so you learn of the excuse late.
  • No duty to mitigate or resume, letting the affected party sit idle.
  • No termination right for a prolonged event, trapping both sides in a dead contract.
  • The clause is one-sided, excusing only the supplier when either party could be affected.

How it interacts with other clauses

Force majeure connects to several performance and exit clauses; read it with:

  • Termination: the long-event termination right works alongside the general termination provisions.
  • Limitation of liability: force majeure excuses performance, while the cap limits liability when performance is not excused.
  • Material adverse change: both address disruptive events, but a MAC is a closing condition, not an ongoing excuse.
  • Service level agreement: SLAs usually exclude force majeure downtime from availability calculations.
  • Notices: the force majeure notice must follow the contract's notice mechanics to be valid.

For the broader workflow, see the in-house contract review playbook.

FAQ

What is a force majeure clause? It is a provision that excuses a party from performing when a listed, uncontrollable event makes performance impossible or impractical, without that party being in breach. It typically covers events like natural disasters, war, government action, and, in modern clauses, epidemics and supply-chain failures.

Does a pandemic count as force majeure? Only if the clause covers it. Courts read these clauses by their wording. A clause that lists "epidemic or pandemic" or "government action or order" removes the doubt. A broader catch-all can also reach a pandemic: the Second Circuit applied one to COVID-19 in JN Contemporary Art v. Phillips Auctioneers (2022), while Kel Kim shows a narrow reading when the event is of a different kind from the listed ones. After 2020, many clauses name these events explicitly.

Does force majeure excuse payment? Most clauses carve payment out, so check yours. Force majeure suspends performance like delivery or services, and the obligation to pay money is commonly excluded in the text. A party's financial inability to pay, or a market downturn, is commonly listed as not a force majeure event.

What duties come with invoking force majeure? Usually three: give prompt written notice of the event, use reasonable efforts to mitigate and work around it, and resume performance as soon as the event ends. Many clauses make prompt notice a condition of relief, so a late notice can cost the excuse.

Can a contract be terminated for a long force majeure event? Yes, most clauses include a termination right if the event continues past a set period, commonly 30 to 90 consecutive days. Either party can usually exit so neither is trapped in a contract that cannot be performed.

Does a supplier's failure count as force majeure? It depends on the drafting and is heavily negotiated. Buyers want supplier or subcontractor failure excluded unless the supplier was itself hit by a force majeure event. A clause that broadly excuses any supply-chain problem shifts a lot of risk onto the buyer.

What if there is no force majeure clause? Common-law doctrines like impossibility, impracticability, and frustration of purpose may excuse performance, but New York's highest court has said they are applied narrowly. Under UCC 2-615, a seller may be excused where performance is made impracticable by a contingency whose non-occurrence was a basic assumption of the contract, if the seller gives the required notice. A well-drafted clause is far more reliable than these fallbacks.

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Updated October 12, 202614 min read

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Arshita Anand

Arshita Anand

Co-Founder & CEO · Attorney

Arshita leads product and strategy at Vaquill AI, the US primary law data API. As an attorney, she decides which law we carry, how each section is sourced and cited, and what legal AI and compliance teams need from the data.

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