While it lacks the immediacy of the class struggle, the question of the transitional period towards communism following the revolution, and of the nature of communist society itself, has always been hotly debated in the workers' movement. One major effort to systematise an understanding the issue was the publication of the Dutch councilist group GIC in the 1930s: Grundprinzipien Kommunistischer Produktion und Veiteilung. We publish here an account of the Italian Left's critique of the Grundprinzipien.