Русско-англо-русский юридический словарь

Under English law, there are two forms of a written contract – a simple contract and a deed. The practical difference between a simple contract and a deed is that there are additional formailities to execute a deed. (In the know – deeds)

A deed is a written document which is executed with the necessary formality (that is, more than a simple signature), and by which an interest, right or property passes or is confirmed, or an obligation binding on some person is created or confirmed. Deeds are generally enforceable despite any lack of consideration. (Practical Law)

Deeds on the other hand are required in circumstances such as transfers of property, leases and powers of attorney. They differ from a simple contract in that they require additional formality beyond just signing. Deeds must be in writing and will typically be executed in the presence of a witness, although in the case of a company a deed may be executed effectively by two directors or a director and the company secretary. (Allan Janes)