An extract from The Complex Commercial Litigation Law Review, 2nd Edition
Breach of contract claims
In Australia, a cause of action for breach of contract arises where one party fails to perform its obligations under a contract. This may occur by way of a failure to perform or an anticipatory breach (in essence, a failure to perform or a contractual obligation that is foreshadowed by a party's actions or inaction). The burden of proof lies with the party alleging the breach of contract, whether this is by way of failure to perform or anticipatory breach.i Failure to perform
A failure to perform arises when the promising party fails to perform its obligations under the contract. This may occur by way of non-performance, defective performance, late performance (where time is of the essence), or breach of any contractual warranties.
Where a breach of contract occurs, the non-breaching party will generally accrue a right to claim damages, but will not always be entitled to an automatic right of termination. The question of whether a breach gives rise to a right to terminate the contract will depend upon the agreement between the parties and any relevant legislation. But generally, a right to terminate does not arise unless the breach strikes at the 'root of the contract' (such as a breach of a condition as opposed to a mere warranty) or amounts to a sufficiently serious breach of a non-essential term which indicates a refusal by the party to be bound by the contract. Importantly, where a breach has occurred, the non-breaching party may elect to affirm the contract and continue with its performance, but in doing so will relinquish their right to terminate the contract in reliance upon the breach.ii Anticipatory breach or repudiation
An anticipatory breach occurs where the promising party repudiates their obligations under the contract, for example by indicating that they are unable or unwilling to perform the terms of the contract, and the other party consequently terminates the contract prior to performance.
The time of occurrence of the anticipatory breach is the time that the non-breaching party terminates the contract. Unlike a failure to perform, if a party repudiates their obligations of a contract, the non-breaching party has an automatic right to termination. If the non-breaching party does not terminate the contract there will be no anticipatory breach and breach will instead occur at the time of failure to perform.
The test for repudiation in Australia involves a high threshold. The courts have made clear that it is 'is not to be lightly found' and will determine whether repudiation has occurred objectively by inquiring into 'whether the conduct of one party is such as to convey to a reasonable person, in the situation of the other party, renunciation either of the contract as a whole or of a fundamental obligation under it.'
Defences to enforcement
There are myriad of arguments that parties to a contract may raise in defending a claim for breach of contract. These range from straightforward arguments (such as pleading a statute of limitation which precludes the plaintiff from bringing a claim), to the complex and fact-sensitive (such as pleading that a contract has already been repudiated by the party bringing a claim). This section of the chapter describes a number of the most common defences to enforcement raised in Australia.i Statutes of limitation
In Australia there are strict time limits within which a party must commence proceedings to bring a claim for breach of contract, and most other causes of action. A party is precluded from commencing proceedings if it files after the time limit expressed by statute. In Australian contract law the general rule is that a cause of action arises immediately upon the breach of contract occurring, even if the breach is unknown to the prospective plaintiff until later. Pleading that a claim is time-barred by a statute of limitations is perhaps the simplest means by which a party can, granted the conditions are met, resist a breach of contract claim.
Each Australian state and territory has its own regime, which differ in certain respects and a party must be careful to ensure there action is not barred. For breach of contract in NSW, Victoria, Western Australia, South Australia and Queensland a party must commence proceedings within six years of the breach occurring, For breach of a deed they must commence proceedings within 12 years of the breach occurring.ii Force majeure and frustration
Australian contract law is very familiar with the doctrines of force majeure and frustration. Commonly issues around whether a force majeure event has arisen
Force majeure is generally dealt with in Australian contracts by way of a specific contractual term addressing the consequences of an extreme or unexpected event that renders the performance of a contract different from what was agreed by the parties, or altogether impossible. Depending upon the particular terms of the contract, a force majeure event will commonly entitle the affected parties to additional cost or an extension of time for performance, provide a right which excuses non-performance of a contractual obligation, or even serve to discharge the contract as a whole.
The doctrine of frustration is governed by the common law in Australia. It will be applicable when, without default of either counterparty, a contractual obligation becomes incapable of being performed because the circumstances called for in the performance of the contract have become radically different from that which was contemplated by the parties when entering into the agreement. Frustration operates in the absence of an express reference to the concept in the contract. This means that parties to an agreement in Australia which does not make provision for force majeure may still avail themselves of relief via the (similar) doctrine in frustration.iii Duress, undue influence and unconscionable conduct
Where a contract was entered into by a party under duress or induced by undue influence or unconscionable conduct, Australian law provides that the contract may be voidable by the counterparty subject to the impugned conduct. In the event that the innocent party is later subject to a breach of contract claim in respect of the contract, that party is entitled to seek to have the contract 'rescinded' on equitable principles, and possibly also counterclaim for damages. 'Rescission', an equitable remedy that is also known to other common law jurisdictions, means the contract is treated as if it never existed.iv Mistake
Where both parties to a contract have entered into it on the basis of a shared misapprehension of the facts or of their rights under it (a 'common mistake'), Australian law holds that contract void or voidable. Common mistake between all parties to a contract rarely occurs in practice, and thus, more typically is the situation where a mistake infects only one party's entry into a contract. In the circumstances of a 'unilateral' mistake, Australian Courts will treat the contract as effective and enforceable unless that party's entry into the contract was induced by misrepresentation or affected by unconscionable conduct by the counterparty. These concepts are discussed in Section VII below.