Offer acceptance

• Offer

  A promise made by the offeror to enter a contract on firm and definite terms
• Bilateral Offer

  • The offeror promises something in return for the promise of something from the offeree
• Unilateral Offer Case

  • Carlil v Smoke Ball
• Unilateral Offer


  • The offeror promises something in return for the performance of an act by the offeree
• ITT


  A willingness to start negotiations and invites the other person to make an offer, which can then be accepted or rejected
• Acceptance

  Becomes effective by letter on posting
• Acceptance must be communicated


  This exception is unfair to the offeror who doesn't know that their offer has been accepted
• Adams v Lindsell

  • It was unfair on the offeror as they were bound to an agreement they were unaware of