This Practice Note identifies changes to foreign business-to-business contract terms typically required to ‘localise’ them for use in the UK under English law and, conversely, the terms that typically need to be reviewed if English law business-to-business contract terms are to be adapted for use in a different jurisdiction. In this context, it focuses on common commercial terms in IT contracts, general English law localisation issues, common law implied terms, statutory controls on contract terms and some common issues with English law doctrines and convention.