Force Majeure in Construction Contracts: Risks, Notices and Relief

Force majeure in construction contracts is a contractual mechanism that may excuse or suspend affected performance when a defined event beyond a party’s reasonable control prevents, hinders, or delays the work. In Australia, force majeure is not an automatic legal right. Whether it applies—and whether it provides time, money, suspension, or termination rights—depends on the wording of the executed contract.

A serious disruption does not become force majeure merely because it is unexpected or expensive. The project team must identify the operative clause, test the event against its trigger, comply with notice requirements, preserve evidence, mitigate the impact, and confirm the relief the contract actually provides.

This is why contract review should not stop at signature. The wording that matters most is often revisited only after project pressure has already started building.

Force majeure in construction contracts: quick summary

Why force majeure is not automatic in Australia

Force majeure is often discussed as though it were a general legal principle that applies whenever an exceptional event occurs. That is not the usual position under Australian common law.

The Australian Government Solicitor explains that Australian law has no common-law concept of force majeure. Parties seeking that protection generally need to include a specific clause in their agreement.

This makes the executed wording decisive. One construction contract may define a force majeure event broadly and another may use a narrow list. One may require that performance be “prevented,” while another may refer to performance being “hindered” or “delayed.” Those words can produce materially different thresholds.

The first question is therefore not simply, “Was the event extraordinary?” It is:

• Does the contract contain a force majeure clause?
• Does the event fall within the clause’s definition?
• Is the event excluded or allocated elsewhere in the contract?
• Has it affected the relevant obligation to the degree required by the clause?
• Has the affected party followed every procedural condition?

Common force majeure events in construction

Construction clauses may refer to events such as natural disasters, war, terrorism, civil unrest, epidemics, government actions, changes in law, industrial action, embargoes, or major infrastructure failures. Some clauses also address shortages or supply-chain disruption.

However, a category appearing in a clause does not make every related disruption qualifying force majeure. The team still needs to examine:

• whether the event was outside the affected party’s reasonable control
• whether it was foreseeable or should have been allowed for
• whether reasonable steps could have avoided or overcome it
• whether it actually caused the claimed delay or non-performance
• whether another clause more specifically allocates the risk

For example, a broad supply shortage may not provide relief if alternative supply was reasonably available, the procurement delay was caused internally, or the contract placed that procurement risk on the contractor. Likewise, severe weather may be addressed through an extension-of-time mechanism rather than the force majeure clause.

The six checks that determine whether the clause may apply

Time relief does not automatically mean cost relief

A common commercial mistake is to assume that a qualifying event entitles the contractor to both additional time and additional payment. Many contracts separate those outcomes.

Depending on the agreement, the event may:

• excuse liability for affected non-performance
• support an extension of time
• permit temporary suspension
• provide defined cost recovery
• leave each party to bear its own costs
• allow termination after prolonged disruption

Project teams should avoid treating “time but no money” as a universal rule. It may be a common allocation in some forms, but the actual entitlement depends on the force majeure clause and its interaction with extension-of-time, delay-cost, change-in-law, variation, suspension, insurance, and termination provisions.

Notice requirements can decide whether relief is preserved

A qualifying event may still produce a weak contractual position if the affected party fails to operate the notice machinery correctly.

The contract may require an initial notice within a strict period, followed by particulars, impact updates, mitigation reports, cost records, or a final claim. It may specify the recipient, delivery method, clause reference, and information that must be included.

Before issuing a force majeure notice, check:

• the triggering event and affected obligation
• the deadline and the point from which time runs
• the required recipient and service method
• the clause and relief being relied upon
• known and anticipated time, cost, and operational effects
• mitigation already taken or proposed
• continuing and periodic update requirements

This is why notice obligations in construction contracts should be treated as live commercial controls rather than administrative correspondence.

Evidence and mitigation should start immediately

Teams should not wait for the full impact to become clear before creating the evidence trail. The first days of disruption may contain the strongest evidence of cause, timing, operational effect, and available alternatives.

A practical record should include:

• when the event began and when the team became aware of it
• the obligations, activities, locations, and resources affected
• official directions, restrictions, and third-party communications
• baseline, updated, and recovery programmes
• site diaries, photographs, labour and plant records
• supplier correspondence and alternative procurement enquiries
• resequencing, acceleration, substitution, and recovery options considered
• incremental cost records kept separately from unrelated project costs
• decisions, approvals, notices, and ongoing updates

Mitigation does not necessarily mean eliminating every consequence. It means taking the reasonable steps required by the contract and the circumstances, then documenting why options were adopted or rejected.

How force majeure differs from frustration

Force majeure and frustration both concern disruptive events, but they operate differently.

Frustration should not be treated as a convenient fallback whenever a force majeure claim is uncertain. If the contract already allocates the relevant risk or provides a mechanism for dealing with the event, the position may be more complex. Professional legal advice is appropriate before relying on frustration.

When prolonged force majeure may lead to termination

Force majeure usually does not end the contract as soon as the event occurs. Many clauses first suspend or excuse only the affected obligations. Performance may resume when the event ends.

Some agreements allow one or both parties to terminate if the disruption continues beyond a defined period. Before acting, decision-makers should confirm:

• when the prolonged-event period started
• whether it runs continuously or cumulatively
• whether the required notices and updates were issued
• which party holds the termination right
• whether consultation, escalation, or further notice is required
• the consequences for payment, security, demobilisation, materials, records, and subcontractors
• which obligations survive termination

Termination is a high-consequence decision. Taking that step without satisfying the exact trigger and process may create repudiation or wrongful-termination exposure. The availability of a right and the commercial wisdom of exercising it are separate questions.

A practical force majeure response workflow

1. Stabilise the project. Address immediate safety, access, asset, workforce, and operational consequences.
2. Read the executed contract. Review force majeure together with notice, EOT, variation, suspension, change-in-law, insurance, mitigation, and termination provisions.
3. Map the event to the clause. Identify the defined event, causal threshold, exclusions, affected obligations, and available relief.
4. Protect the notice position. Issue the required notice to the correct recipient within the contractual timeframe, then provide updates where required.
5. Create the evidence file. Maintain contemporaneous records of cause, effect, programme impact, cost, alternatives, and decisions.
6. Mitigate and continue. Take reasonable mitigation steps and continue unaffected obligations unless the contract provides otherwise.
7. Reassess regularly. Monitor whether the event has ended, whether relief changes, and whether a prolonged-event threshold is approaching.
8. Escalate major decisions. Obtain appropriate commercial and legal review before suspension, rejection of entitlement, or termination.

How contract intelligence supports the response

During disruption, the challenge is rarely finding the words “force majeure.” The harder task is connecting the clause to related obligations, notices, live events, evidence, relief mechanisms, and downstream consequences.

Contract risk intelligence helps teams maintain that connection. It can support earlier visibility of:

• the relevant clause and associated definitions
• notice and update requirements
• related EOT, cost, suspension, insurance, and termination provisions
• project events that may activate the contractual pathway
• evidence gaps and emerging claim exposure

The objective is not to replace professional judgement. It is to help project, commercial, and legal teams identify the right questions and act before deadlines or evidence are lost.

Frequently asked questions

What is the purpose of a force majeure clause in a construction contract?

Its purpose is to allocate the risk of defined events beyond a party’s reasonable control and specify what happens when those events affect performance. The clause may address relief, notice, mitigation, suspension, resumption, and prolonged-event termination.

Does force majeure automatically apply in Australia?

No. Australian common law does not provide a general force majeure doctrine. The parties generally need an express contractual clause, and its wording determines the events, threshold, procedure, and relief.

What are the key elements of a force majeure claim?

The contract commonly requires a covered event, an effect beyond reasonable control, the required causal connection to performance, compliant notice, evidence of impact, and reasonable mitigation. The precise requirements vary between contracts.

Does force majeure provide additional time and money?

Not necessarily. A clause may provide time relief without cost relief, excuse only affected non-performance, or offer another defined remedy. The force majeure provision must be read with the contract’s EOT, delay-cost, variation, suspension, and change-in-law mechanisms.

What records should a construction team retain?

Useful records include the executed contract, notices, official directions, programmes, daily reports, site access records, photographs, labour and plant records, supplier communications, mitigation options, cost records, instructions, correspondence, and internal decisions.

Can force majeure terminate a construction contract?

It may, but usually only if the clause gives a termination right after the event continues for a defined period and the required process is followed. Force majeure commonly suspends or excuses affected obligations before termination becomes available.

What is the difference between force majeure and frustration?

Force majeure depends on an express contractual clause. Frustration is a narrow common-law doctrine that can automatically discharge future obligations when an event radically changes the contractual obligation. Delay, inconvenience, or increased cost alone is generally not enough.

Authoritative references and further reading

• Australian Government Solicitor — Termination of Commonwealth Contracts: Force Majeure and Frustration
• Australian Government Department of Finance — Contract Management Guide
• Victorian Government Procurement — Contract Management: Goods and Services Guide

Executive takeaway

Force majeure in construction contracts is not a label for every severe disruption. It is a contractual pathway that must be tested and operated carefully.

The strongest response is disciplined:

• read the exact clause
• test the event and causal threshold
• protect every notice deadline
• preserve contemporaneous evidence
• mitigate and continue unaffected obligations
• confirm whether relief is time, money, suspension, or something else
• treat termination as a separate, high-risk decision

When the event, clause, notice, evidence, and relief are connected early, project teams are better placed to protect delivery and make commercially informed decisions before the disruption becomes a claim or dispute.

This article is for general informational and educational purposes only. It does not constitute legal, contractual, or financial advice. Force majeure, frustration, and termination outcomes depend on the executed contract, applicable law, and specific facts. Obtain appropriate professional advice before acting.