49However, it must be recalled that the Member States are free, given the current state of harmonisation of EU tax law, to establish the system of taxation that they deem the most appropriate, and consequently the application of progressive taxation falls within the discretion of each Member State (see, to that effect, judgments of 22 June 1976, Bobie Getränkevertrieb, 127/75, EU:C:1976:95, paragraph 9, and of 6 December 2007, Columbus Container Services, C‑298/05, EU:C:2007:754, paragraphs 51 and 53).
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