What a Contract Is

A contract is an agreement between two or more parties that the law will enforce. If one party does not do what it promised, the other party can ask a court or an arbitrator to give it a remedy, such as money or an order to perform.

That is the difference between a contract and an ordinary promise. If a colleague promises to buy you lunch and forgets, you are disappointed. If a supplier promises to deliver 500 cartons by Friday under a contract and does not, your organisation may have a legal claim.

Many people think a contract is a long document signed by directors. In practice, most contracts are much smaller and much more common. You probably make or manage several every week.

Why non-lawyers need to understand contracts

Lawyers usually draft and negotiate the important contracts, but they rarely live with them. The people who order, deliver, check, invoice and pay are managers, engineers, buyers, sales staff and administrators. They decide every day whether the contract is being followed.

A person who understands the contract can spot a problem early, keep the right records and ask for legal help at the right time. A person who does not may accept a bad term, miss a deadline that cannot be recovered, or give away a right by accident, for example by saying in an email that a late delivery is “no problem”.

Example: a contract nobody noticed

An office manager at a logistics company asked three cleaning firms for prices by email. One replied with a price and a one-page list of terms. The manager replied, “Great, please start on Monday.” Nobody signed anything, so the manager believed there was no contract.

In most legal systems there was a contract, on the cleaning firm’s terms. Those terms included a twelve-month minimum period. When the office wanted to change cleaners after three months, the firm claimed nine months of fees. The manager had made a contract without knowing it.