Question juridique clé
Whether the appeal against the Liechtenstein judgment was admissible and, if so, to what extent the Federal Court could review the case.
Solution extraite
The appeal was admissible only against the final Liechtenstein judgment on material VAT law; the Court could not review facts or the original tax administration order.
Motifs extraits
Art. 11 of the VAT agreement and Art. 66 MWSTG/FL limit review to final decisions on substantive VAT law. Requests targeting the earlier administrative order were inadmissible.