The article focuses on peculiarities of different legal forms of digital relations. The aim of the article is to demonstrate that digitization of the economy implies changing forms of economic relations, but not their content. In conditions of the digitized economy when we use an electronic system of data registration in databases and its exchange, the automated system of data management and the economic processes which used to be in the paper (documentary) form are being transformed into a new digital electronic (non-documentary) form. The law shall take into account such changes by passing legislation reflecting peculiarities of the origin and implementation of real economic processes under the conditions of digitization and peculiarities of their application. Meanwhile the nature of the legal instruments used remains the same and is expressed through well-known legal terminology: legal relations, grounds for their dynamics, subjects, objects, content.