The starting point of the contract which must be definite in its terms, if not it's likely to be classed as an invitation to treat
Offer
Gibson v Manchester CC
Advert
May be considered a unilateral contract and therefore a legal offer if there are specific terms that mean it can be accepted by fulfilling the terms of the offer
Advert as offer
Carlill v Carbolic Smoke ball co.
Offer
Can be subject to time limits
Offer with time limit
Stevenson v Mclean
Advert
Generally invitations to treat
Advert as invitation to treat
Partridge v Crittenden
Goods on display in a shop
Will be an invitation to treat, when the customer makes cashier an offer by presenting the item at the till which can be accepted or rejected
Goods on display as invitation to treat
Pharmaceutical Society v Boots
Auction
Invitation to treat, bidder makes an offer that can be accepted or rejected
Auction as invitation to treat
British car auctions v wright
Request for information and the reply
Invitation to treat
Request for information as invitation to treat
Harvey v Facey
Offer
Can be made by a notice or machine
Offer by notice or machine
Thornton v Shoe Lane parking
Revocation
An offer can be withdrawn at any time but only before acceptance has been communicated
Revocation of offer
Routledge v Grant
Unilateral contract
Offer can't be withdrawn once the other party has embarked on performance, until that party has been given a reasonable time to complete it
Unilateral contract revocation
Errington v Errington & Wood
Revocation
Doesn't have to be the person to communicate revocation as long as it's a reliable source
Revocation by reliable source
Dickinson v Dodd
Counteroffer
A rejection of the original offer as it significantly alters the terms of the contract
Counteroffer
Hyde v wrench
Offer
If there is a time limit within the offer and this passes, then it comes to an end
Offer ending due to time limit
Ramsgate Victoria Hotel v Montefiore
Acceptance
Must be communicated, and silence cannot be imposed as a method of acceptance
Acceptance by silence
Felthouse v Bindley
Acceptance method
Offeror can stipulate a method of acceptance but this will only be a preference so the acceptance will still be valid
Acceptance method
Yates v Pulleyn
Acceptance
Can take place through conduct
Acceptance by conduct
Reveille v Anotech
Acceptance by post
Takes place once the letter is posted
Acceptance by post
Adam v Lindsell
Acceptance by post
Offeror can exclude postal rule if they require notice in writing, which means they must actually receive the communication for acceptance to be valid
Exclusion of postal rule
Howell Securities v Hughes
Acceptance by electronic means
Where the acceptance is received out of hours, when office reopens it will be classed as accepted
Acceptance by electronic means
Brinkibon v Stahag
Acceptance
Decided on a case-by-case basis and will determine the time at which the offeror might reasonably have been expected to be aware of it