Distinction between Offers, Offers in Unilateral Contract and Invitation to Treat

The distinction between offers, offers in unilateral contracts, and invitations to treat is an important concept in Contract Law for determining the point at which a contract is formed and when parties become legally obligated.

Offers: In contract law, an offer is a proposal made by one party (the offeror) to another party (the offeree) that indicates a willingness to enter into a legally binding agreement. An offer must be communicated to the offeree and contain clear and definite terms. It creates an expectation that the offeror is prepared to be bound by the terms of the offer if the offeree accepts it without further negotiation. For example, a person offers to sell their car to another person for $10,000. The offeror clearly states the price and expresses the intention to sell, creating an expectation of a binding contract upon acceptance by the offeree.

Offers in unilateral contracts: A unilateral contract is a type of contract where one party makes a promise or an offer that invites the other party to accept by performing a specific act. In this case, the offeror promises to provide something in return for the offeree's performance, rather than a promise of mutual exchange. The offer in a unilateral contract is seen as a promise to pay or provide something in exchange for the completion of a specified act. The contract is formed and becomes binding only when the offeree completes the required act. For instance, a company announces a reward of $500 to anyone who finds and returns a lost laptop. By performing the act of finding and returning the laptop, an individual accepts the offer and completes the required act, forming a binding contract where the company is obligated to pay the reward.

Invitations to treat: An invitation to treat, also known as an invitation to bargain, is not considered an offer. It is an invitation for others to make an offer to enter into a contract. Advertisements, price lists, catalogs, and display of goods in a store are some common examples of invitations to treat. When someone responds to an invitation to treat, they are considered to be making an offer, and the other party can either accept or reject that offer. For example, a store displays various products on its shelves with price tags. The displayed prices are considered invitations to treat. When a customer selects a product and takes it to the cashier, they are making an offer to buy, and the store can either accept or reject that offer. Another example of an invitation to treat is an advertisement for a sale. When a store advertises a discount on certain items, it is inviting customers to come and make offers to purchase those items at the discounted price. The store can choose whether to accept or reject those offers.

The determination of whether a statement or action is an offer, an invitation to treat, or part of a unilateral contract can be subjective and may depend on the specific context and surrounding circumstances.
Back to blog
UOLLB SQE Turbocharge

UOLLB SQE Turbocharge

Get ready for the SQE1 with high-performance SQE Study Guides developed by UOLLB and published by UOL Press to revolutionise your study method and exam strategy.

Turbocharge SQE Performance

UOL Case Bank

Upon joining, you become a valuable UOL student and gain instant access to over 2,100 essential case summaries. UOL Case Bank is constantly expanding.
Speed up your revision with us now👇

Subscribe Now

Where are our students from?

Council of Europe
Crown Prosecution Service
Baker Mckenzie 
Yale University
University of Chicago
Columbia University
New York University
University of Michigan 
INSEAD
University of London
University College London (UCL)
London School of Economics (LSE)
King’s College London (KCL)
Royal Holloway, University of London 
Birkbeck, University of London
SOAS, University of London
University of Manchester
University of Zurich
University of York
Brandeis University
University of Exeter
University of Sheffield
Boston University
University of Washington
University of Leeds
University of Law
University of Kent
University of Hull
Queen’s University Belfast
Toronto Metropolitan University
Hong Kong University of Science and Technology
University of Buckingham
ESSEC Business School

  • Criminal Practice

    Diagrams and Charts

    Our carefully designed diagrams and charts will guide you through complex legal issues.

  • Criminal Law

    Clear and Succinct Definitions

    Key concepts are concisely defined to help you understand legal topics quickly.

  • Property Law

    Statutory Provisions

    Statutory provisions are provided side by side with legal concepts to help you swiftly locate the relevant legislation.

  • Public Law

    Case Summaries

    We have summarised important cases for you so that you don't need to read long and boring cases.

  • Evidence

    Rules and Exceptions

    Rules and exceptions are clearly listed so that you know when a rule applies and when it doesn't.

  • Company Law

    Terminology

    Legal terms and key concepts are explained at the beginning of each chapter to help you learn efficiently.

  • Case Law

    Case law is provided side by side with legal concepts so that you know how legal principles and precedents were established.

  • Law Exam Guide

    Law Essay Guide

    You will learn essential law exam skills and essay writing techniques that are not taught in class.

  • Law Exam Guide

    Problem Question Guide

    We will show you how to answer problem questions step by step to achieve first-class results.

  • Conflict of Laws

    Structured Explanations

    Complex legal concepts are broken down into concise and digestible bullet point explanations.

  • Legal System and Method

    Legal Research

    You will learn legal research techniques with our study guide and become a proficient legal researcher.

  • Jurisprudence and Legal Theory

    Exam-focused

    All essential concepts, principles, and case law are included so that you can answer exam questions quickly.