Questione giuridica chiave
Whether the administrative-law appeal against the cantonal tax board's judgment was admissible in part and inadmissible against the tax bill itself.
Decisione estratta
The appeal was admissible only against the cantonal administrative court judgment; it was inadmissible insofar as it challenged the administrative tax bill directly.
Motivazione estratta
Only a final judicial cantonal decision may be attacked by administrative-law appeal; the tax bill was an administrative act, not a judicial last-instance decision.