Key legal question
Whether annulling the tax assessment notice for failing to label it as an office assessment constitutes excessive formalism.
Extracted holding
Yes. The taxpayer had already been duly informed by the cantonal tax administration of the consequences of not filing the tax return, so the omission caused no protected-interest harm.
Extracted reasoning
A procedural defect may not be elevated to a formal requirement when the person concerned has already received sufficient information about the legal consequences. The absence of the specific label 'office assessment' on the notice did not justify annulment.