In contract law, most agreements are formed through offer and acceptance between two parties. However, there are certain situations where no formal agreement exists, yet the law imposes obligations on a party to prevent unfair advantage. These situations are known as quasi contracts. They are based on the principles of justice, equity, and fairness, ensuring that no person benefits unjustly at the expense of another.
What is Quasi Contract
A quasi contract is not an actual contract formed by mutual agreement. Instead, it is a legal obligation imposed by law on a person to compensate another, even though no formal contract exists between them.
In such cases, one party has received a benefit, and it would be unjust for them to retain that benefit without paying for it. Therefore, the law creates an obligation similar to a contract.
Prof. Winfield defines quasi contract as a liability imposed upon a person to pay money to another on the ground of unjust enrichment. This means that even without consent, the law ensures fairness by requiring compensation.
In simple terms, quasi contracts are obligations imposed by law to prevent injustice when one person benefits from another without a valid agreement.
Example of a Quasi-Contract
A supplier accidentally delivers office furniture to the wrong business. The receiving business realizes the mistake but keeps and uses the furniture without informing the supplier or making payment. Although no contract exists between the supplier and the recipient, a court may require the recipient to compensate the supplier because retaining the benefit without payment would result in unjust enrichment.
Essential Elements of a Quasi-Contract
| Element | Explanation |
|---|---|
| No Valid Contract | There is no enforceable agreement between the parties |
| Benefit Conferred | One party receives a measurable benefit |
| Unjust Enrichment | It would be unfair for the recipient to retain the benefit without compensation |
| Legal Obligation | The obligation arises by operation of law rather than agreement |
| Equitable Remedy | The law provides relief to achieve fairness |
There are certain conditions under which quasi contractual obligations arise. These are recognized by law and are enforced to ensure fairness between parties.
1. Supply of Necessaries
When a person who is incapable of entering into a contract, such as a minor or a person of unsound mind, is supplied with necessaries suited to their condition in life, the supplier is entitled to be reimbursed from the property of that person.
This rule ensures that essential needs such as food, clothing, or medical care are provided without financial loss to the supplier.
For example, if a person is injured and another takes them to a hospital and pays for treatment, the person receiving the benefit is liable to compensate for those expenses, even if no agreement was made.
2. Payment Made on Behalf of Another
If a person pays money on behalf of another who is legally bound to pay it, and the payment is made to protect their own interest, they are entitled to reimbursement.
This applies when the payment is made in good faith and is necessary to protect a legal or financial interest.
For example, if a tenant pays government dues on behalf of a landlord to prevent the property from being seized, the tenant has the right to recover that amount from the landlord.
Similarly, if a guarantor pays a debt on behalf of a debtor, they can recover the amount from the debtor.
3. Non-Gratuitous Acts
When a person lawfully does something for another or delivers goods without intending it to be free, and the other person enjoys the benefit, the latter must compensate for it.
The key condition here is that the act was not intended to be gratuitous, meaning it was not done free of charge.
For example, if goods are delivered by mistake and the receiver uses or sells them, they are bound to pay for those goods. Likewise, if a person uses services or goods knowingly, they must compensate the provider.
4. Finder of Goods
A person who finds goods belonging to another and takes them into their custody has certain rights and responsibilities similar to a bailee.
They are entitled to recover reasonable expenses incurred in preserving the goods and attempting to find the owner.
For example, if a person finds a lost animal and spends money on its care and advertisement to locate the owner, they are entitled to compensation from the rightful owner. This rule encourages honesty and responsibility in dealing with lost property.
5. Payment Made by Mistake or Under Coercion
If a person receives money or goods by mistake or under coercion, they are legally bound to return it or compensate the rightful owner.
This ensures that no one unfairly benefits from an error or forced transaction.
For example, if goods are mistakenly delivered to the wrong person and that person uses them, they must pay for the value of those goods. Similarly, any payment made under pressure or mistake must be refunded.
Contract vs Quasi-Contract
| Contract | Quasi-Contract |
|---|---|
| Based on mutual agreement | Created by law |
| Requires offer and acceptance | No offer or acceptance is required |
| Based on consent | Based on the principle of unjust enrichment |
| Rights arise from the agreement | Rights arise from legal obligations imposed by law |
| Governed by contractual promises | Governed by equitable principles and applicable law |
Frequently Asked Questions (FAQs)
What is a quasi-contract?
A quasi-contract is a legal obligation imposed by law to prevent unjust enrichment even though no actual contract exists between the parties.
Why is it called a quasi-contract?
It resembles a contract because it creates legal obligations, but those obligations arise by operation of law rather than through mutual agreement.
What is the main purpose of a quasi-contract?
Its primary purpose is to prevent one party from being unjustly enriched at the expense of another.
Is a quasi-contract a real contract?
No. It is not based on offer, acceptance, or mutual consent. Instead, it is a legal remedy created by law.
What remedy is generally available under a quasi-contract?
The most common remedy is restitution or compensation for the value of the benefit received, depending on the applicable law.
Conclusion
A quasi-contract is a legal obligation created by law to prevent unjust enrichment where no valid contract exists between the parties. Although it differs from an ordinary contract because it is not based on mutual consent, it ensures fairness by requiring a person who has received an unjust benefit to provide appropriate compensation.
As modern commerce increasingly involves digital transactions, electronic payments, and complex business relationships, the principles underlying quasi-contracts remain highly relevant. Understanding quasi-contracts enables businesses and individuals to recognize situations where the law may impose obligations even without a formal agreement, thereby promoting fairness and justice in commercial dealings.
See Also: What is Wagering Contract

