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What Is a Quantum Meruit Claim?

What Is a Quantum Meruit Claim?

Have you performed work for a 'reasonable sum' in a construction contract? Learn how to ensure you get paid with a quantum meruit claim here.

24th May 2019

Particularly if you are in construction, sometimes the work you perform is not specifically referred in the contract’s terms. Therefore there is not a specified amount for you to receive in payment. This may be because it is outside the scope of work agreed upon or you were contracted for the payment of a ‘reasonable sum’. In these circumstances, you may be eligible for a quantum meruit claim. Read on to find out what you need to know about quantum meruit claims and their features.

Quantum Meruit Claims: What Are They and When Can They Arise?

Usually, a contract has a clause that determines your work’s value. However, there are circumstances when instead you will be eligible to receive a ‘reasonable sum’. A quantum meruit claim may apply in the following situations:

  • The contract does not include a price for the work performed.
  • The initial work does not include the work you have performed.
  • The contract no longer exists because the contract becomes enforceable because it is void, voidable or frustrated.
  • Either party has terminated the contract, however, some work that is compensatable has already been performed.
  • If you perform the work under a heads of agreement rather than a contract.

A quantum meruit claim can arise if one of the circumstances exists. Therefore, you will be able to make a claim for a ‘reasonable’ sum for the work performed.

What Is a Reasonable Sum for a Quantum Meruit Claim?

As mentioned earlier, a quantum meruit claim will enable you to be paid for your work. Evidence of costs done by you to undertake the work and analogous work under other contracts you have performed can form the basis of the ‘reasonable sum’ that you charge. If you go to court, the court will consider the following factors in determining the ‘reasonable sum’ for you to be able to claim:

  • What the ‘commercial value’ of the work you undertook.
  • Whether the contract or heads of agreement indicate a formula or method for determining the value of work.
  • The quality or value of the work that has been performed.

Is There Anything That Can Prevent Me From Claiming?

Chiefly, you must prove that can make the claim. If you agreed that you are only eligible for a fee for completed work then you may be precluded from making a quantum meruit claim. Alternatively, you are also ineligible if you do additional work where you agreed there would be no fee. Furthermore, if you have acted in bad faith then you are also ineligible from making a quantum meruit claim.


Therefore, a quantum meruit claim can provide you with compensation when there is no specified amount for the work performed. Furthermore, if you are unsure how to proceed, get in touch with a construction lawyer to assist you in making your claim.

Unsure where to start? Contact a LawPath consultant on 1800 529 728 to learn more about customising legal documents and obtaining a fixed-fee quote from Australia’s largest legal marketplace.

Lachlan Ward

Lachlan is an intern at Lawpath as part of the content team. He is currently studying a Juris Doctor at the University of Sydney. Lachlan has a keen interest in corporate law and commercial litigation.