Unless treaties are read in very liberal terms, the European Union (EU) is not competent for defining the construct of a fair tax system and determining who should pay taxes and in which proportion within the EuropeanUnion.Yet, the European Commission has increasingly been using references to tax fairness in its tax policy discourse. This raises questions on the future of EU tax law, the commission’s role in responding to European citizens’ concerns, and achieving tax fairness. By exploring six case studies, this contribution argues that the commission’s narrative on tax fairness remains vague and ambiguous which might indicate that it is not taking tax fairness – as a procedural and/or distributive issue – seriously. The commission uses f...