In the context of AI chatbots like ChatGPT, a “hallucination” is when the model confidently produces false or unfounded information. In accounting, where accuracy and compliance are paramount, hallucinations pose a serious risk – an AI might fabricate financial facts, misapply regulations, or miscalculate figures. Such errors can mislead decision-makers and violate professional standards. The goal is to harness ChatGPT’s benefits (speed, knowledge) without sacrificing accuracy or trust. Below, we explore practical, proven methods to reduce hallucinations in accounting use-cases, drawing on recent techniques and industry best practices.