Implied terms are terms that are not expressly stated in a contract, but are instead inferred by the court or implied by law. These terms are necessary for giving business efficacy to the contract, and are therefore deemed to be included even if they are not expressly stated.
For example, if a person hires a contractor to build a house, there is an implied term that the work will be carried out with reasonable care and skill. This means that even if this term is not expressly stated in the contract, it is still an implied term because it is necessary for the contract to have business efficacy. Similarly, there is an implied term in contracts for the sale of goods that the goods will be of satisfactory quality and fit for purpose. These terms are implied by law, and are necessary to protect the interests of the parties involved.
Another example is, if a company contracts with a software vendor to purchase a new system, there may be an implied term that the vendor will provide ongoing support and maintenance for the system. This term may not be expressly stated in the contract, but it is necessary for the contract to function effectively.