An innovative software technology known as Bitcoin makes it easier for software to operate with some degree of financial autonomy. In a meaningful sense, it is now possible for software to conduct business on its own account, without using the traditional financial system as an intermediary and without a financial existence tied to an existing natural or legal person. This Essay explores this possibility and suggests that legally autonomous entities, such as a limited liability company (LLC) with no members, are a useful legal structure for factually autonomous systems.