Questione giuridica chiave
Whether the appeal against the remand judgment was admissible and the authority had standing to appeal
Decisione estratta
The cantonal direct federal tax administration had standing, and the remand decision caused irreparable harm because it would have to issue a new decision it could no longer challenge.
Motivazione estratta
A remand order can be appealed when it forces the authority to render a decision contrary to its view and deprives it of later appeal rights.