Invoice System

A comprehensive knowledge base for Japan's qualified invoice system (適格請求書等保存方式) that went live in October 2023. It covers the six mandatory invoice fields, registration number formats (T + 13 digits), transitional measures like the 2割特例 and 3割特例, and the evolving timeline for input tax credits. The skill pulls from eight reference files depending on whether you're asking about invoice requirements, transitional schedules, or whether to register at all. Especially useful if you're dealing with Japanese consumption tax compliance and need to understand things like the small-amount exceptions or how the 80-70-50-30-0 percent phaseout works. Reflects tax reform through December 2026, though final rules depend on Diet approval.