Key legal question
Whether the federal appeal met the requirement of a sufficiently reasoned submission under Art. 42 BGG.
Extracted holding
The appeal did not engage with the decisive reasoning of the cantonal judgment and was therefore insufficiently reasoned.
Extracted reasoning
The appellant made only general assertions, did not concretely show any legal error, and failed to explain why the cantonal court's view of the tax-return duties and the ex officio assessment was wrong.