Questão jurídica principal
Whether the appeal against the remand decision was admissible.
Decisão extraída
Yes. The remand decision was a challengeable interim decision because the authority would otherwise suffer irreparable procedural prejudice.
Fundamentação extraída
The lower court did not finally end the case and factual determinations were not purely arithmetic; nevertheless, the tax authority could not later challenge an end decision aligned with the superior court's instructions.