Questão jurídica principal
Whether the federal appeal met the reasoning requirements for challenging the cantonal non-entry decisions.
Decisão extraída
The appeal did not contain sufficient reasoning because it failed to engage with the decisive non-entry ground and instead attacked the merits of the tax assessment.
Fundamentação extraída
Under Art. 42 BGG, a complaint must address the reasoning of the challenged decision. Since the appeal did not confront the administrative court's non-entry grounds but focused on the substantive tax assessment, it was inadmissibly argued.