Last edited 26 Oct 2020

Meaning of quantum meruit

Quantum meruit is a Latin term meaning ‘the amount deserved’ or ‘what the job is worth’. It is used to refer to a claim for a reasonable sum, such as when a contractor seeks payment for work which has not been determined by a contract. If there is a contract that entitles one party to receive an agreed or reasonable sum from the other then the law of contract applies and a claim for quantum meruit cannot be used.

A claim may arise in circumstances, including:

The contractor must demonstrate that the employer requested, either expressly or impliedly, the work to be done, or freely accepted it. However, in practice, it can prove difficult for the contractor to prove the exact amount of their entitlement under the principle of quantum meruit.

There are no stipulations as to how the reasonable sum is to be assessed as circumstances often differ. The assessment of a claim for quantum meruit in the absence of a contract will differ from the assessment of a reasonable sum to be paid within a contractual framework. Where work done outside an existing contract gives rise to a quantum meruit claim, the contractor should be paid at a fair commercial rate rather than as though it had been performed under the contract (which may be a different rate).

Evidence that can prove useful to a claim includes:

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