This article examines the links between legitimacy, politicisation and the rise of political dissensus in the context of the implementation of the Recovery and Resilience Facility (RRF). In particular, it assesses democratic, technocratic and procedural legitimacy against the vertical, inter-level relations between EU institutions and national authorities in the elaboration of the National Recovery and Resilience Plans (NRRPs), with a particular focus on the case of Italy. The article shows that the implementation of the RRF tends to centralise powers in national executives and their technical-administrative structures to the detriment of national legislatures. This gives rise to a “legitimacy disequilibrium” in the implementation of the RRF characterised by a strong technocratic and a weak democratic legitimacy. Challenging the coordinative Europeanisation literature, the article thus argues that the implementation of the RRF is potentially subject to dynamics of politicisation. As a matter of fact, the observed legitimacy disequilibrium resulting from the implementation of the RRF is open to politicisation from party actors in the member states, thus assuming salience in national public debates. Finally, the article illustrates how the politicisation of NRRPs can become a factor in the wider process of political dissensus in the EU, involving contestation by different types of actors (EU institutions, member state governments and national parties), operating at different levels (EU and national), and with different aims.