his article examines contract as a focal point of modern society both in terms of the way that it is used to classify relationships and the way in which it is used to order relationships. I look at how contractual structures and relationships across a variety of speciman scenarios (private sector supply contracts and public service delivery contracts) can be explained using the work of Ian Macneil. He gives us an account of how the socialising contexts of contract relationships evolve and change. Smart contracts offer a new way of constructing relationships. Their advocates suggest that they have the potential to revolutionise the practice of exchange. I consider smart contracts from Macneil’s perspective and work through whether his account of relationality will be able to encompass this new practise.