Question juridique clé
Whether the Federal Supreme Court could hear the ESTV's appeal against the remand decision
Solution extraite
The remand decision was an interlocutory decision and did not cause irreparable harm or justify immediate review; the appeal was therefore not admissible.
Motifs extraits
The lower court still required the ESTV to re-examine the case and decide anew. No purely mechanical implementation remained, and the required clarification would not necessarily lead to a lower assessment. Neither Art. 93(1)(a) nor Art. 93(1)(b) BGG was satisfied.