Verotuksellisissa
Verotuksellisissa is a Finnish word form used to describe matters that are related to taxation. It is not a standalone lemma but an inflected form derived from the adjective verotuksellinen (tax-related), itself formed from verotus (taxation) and the adjectival suffix -llinen. The ending -issa marks the inessive plural, so verotuksellisissa literally means "in tax-related (ones)" or "in tax-related [contexts/instances]".
The term typically appears as part of longer phrases such as verotuksellisissa kysymyksissä (in tax-related questions),
Translations into English depend on context and can include "in tax-related matters", "from a taxation standpoint"