Types of Contracts

In the Professional Certificate in Legal Contract Management, an understanding of the different types of contracts is crucial. Here, we will explore various key terms and vocabulary related to contracts.

Types of Contracts

In the Professional Certificate in Legal Contract Management, an understanding of the different types of contracts is crucial. Here, we will explore various key terms and vocabulary related to contracts.

Bilateral Contract: A bilateral contract is a type of contract in which both parties make a promise to each other. For example, when a person signs a lease agreement, the landlord promises to provide housing, and the tenant promises to pay rent.

Unilateral Contract: A unilateral contract is a type of contract in which only one party makes a promise, and the other party is not required to make any promises but must perform a specific action. For instance, if a person offers a reward for finding a missing pet, the person making the offer is bound by their promise to pay the reward, but the person who finds the pet is not obligated to look for it.

Express Contract: An express contract is a type of contract in which the terms and conditions are explicitly stated, either in writing or verbally. For example, a written employment contract that outlines the employee's salary, benefits, and job duties is an express contract.

Implied Contract: An implied contract is a type of contract in which the terms and conditions are not explicitly stated but are inferred from the parties' actions or circumstances. For instance, when a customer purchases goods from a store, the customer implies that they will pay for the goods, and the store implies that it will provide goods of acceptable quality.

Executed Contract: An executed contract is a type of contract in which both parties have fulfilled their obligations, and the contract is complete. For example, when a person sells their car to another person and the buyer pays the seller the agreed-upon price, the contract is executed.

Executory Contract: An executory contract is a type of contract in which one or both parties have not yet fulfilled their obligations, and the contract is still in progress. For instance, when a person signs a contract to purchase a house, but the seller has not yet transferred ownership, the contract is executory.

Unilateral Mistake: A unilateral mistake is a mistake made by one party in a contract, which the other party was aware of or should have been aware of. For example, if a person orders goods from a supplier and mistakenly states the wrong price, but the supplier knows about the mistake and proceeds with the order, it is a unilateral mistake.

Mutual Mistake: A mutual mistake is a mistake made by both parties in a contract, which affects the terms of the contract. For instance, if two parties agree to a contract for the sale of goods, but they both misunderstand the quantity of goods being sold, it is a mutual mistake.

Contractual Capacity: Contractual capacity refers to a person's ability to understand the nature and consequences of a contract. For example, a person who is intoxicated or mentally incapacitated may not have the contractual capacity to enter into a contract.

Consideration: Consideration is a benefit or detriment that is exchanged between the parties in a contract. For instance, in a contract for the sale of goods, the consideration is the payment made by the buyer and the goods provided by the seller.

Duress: Duress is a threat or coercion that is used to force a person to enter into a contract. For example, if a person is threatened with violence if they do not sign a contract, it is duress.

Undue Influence: Undue influence is the use of power or authority to force a person to enter into a contract. For instance, if a person is persuaded to sign a contract by a person in a position of trust, such as a family member or religious leader, it may be undue influence.

Frustration: Frustration is the inability to fulfill the terms of a contract due to unforeseen circumstances. For example, if a person enters into a contract to rent a venue for a concert, but the venue is destroyed by a fire before the concert, the contract is frustrated.

Force Majeure: Force Majeure is a clause in a contract that excuses one or both parties from performing their obligations due to unforeseeable circumstances, such as natural disasters, wars, or strikes.

Illegality: Illegality is a situation in which a contract is not enforceable due to its illegal nature. For instance, a contract to commit a crime is illegal and unenforceable.

In summary, understanding the types of contracts and related terms and vocabulary is essential for successful legal contract management. From bilateral to unilateral contracts, express to implied contracts, executed to executory contracts, and various other concepts, the knowledge of these terms will help in managing contracts efficiently and effectively. It is crucial to be aware of unilateral and mutual mistakes, contractual capacity, consideration, duress, undue influence, frustration, force

Key takeaways

  • In the Professional Certificate in Legal Contract Management, an understanding of the different types of contracts is crucial.
  • For example, when a person signs a lease agreement, the landlord promises to provide housing, and the tenant promises to pay rent.
  • For instance, if a person offers a reward for finding a missing pet, the person making the offer is bound by their promise to pay the reward, but the person who finds the pet is not obligated to look for it.
  • Express Contract: An express contract is a type of contract in which the terms and conditions are explicitly stated, either in writing or verbally.
  • For instance, when a customer purchases goods from a store, the customer implies that they will pay for the goods, and the store implies that it will provide goods of acceptable quality.
  • Executed Contract: An executed contract is a type of contract in which both parties have fulfilled their obligations, and the contract is complete.
  • Executory Contract: An executory contract is a type of contract in which one or both parties have not yet fulfilled their obligations, and the contract is still in progress.
May 2026 intake · open enrolment
from £90 GBP
Enrol