The Japan Tax Engine
Cassandra's Japan tax engine reasons over Japanese primary sources rather than a generic global model. Answers name the statute, the section, and the National Tax Agency (NTA) guidance relied on, so certified public tax accountants (zeirishi), CPAs, bengoshi can verify the reasoning before it reaches a client.
Where legislation is amended or guidance is withdrawn, the engine states which version it relied on. Cross-border questions combine this engine with the applicable double tax agreement, the OECD Model Tax Convention commentary, the OECD Transfer Pricing Guidelines, and BEPS Pillar One and Pillar Two materials.
Key Regulatory Bodies in Japan
- National Tax Agency (NTA)
- Financial Services Agency (FSA)
- Japan Federation of Certified Public Tax Accountants' Associations
Core Japan Tax Sources Covered
- Corporation Tax Act
- Income Tax Act
- Consumption Tax Act and the qualified invoice system
- NTA circulars (tsutatsu) and interpretive guidance
- Every output is an LLM-generated research draft requiring review by a practitioner qualified in the relevant jurisdiction. Cassandra Research is a software company and does not provide tax, legal, or financial advice.
AI Capabilities for Japan Firms
Legislation and Guidance Research
Ask a Japanese tax question and receive a structured answer citing the relevant Act, section, and National Tax Agency (NTA) guidance.
Advisory and Memo Drafting
Generate research memos, advice frameworks, and client communications formatted for professional review and sign-off.
Cross-Border Analysis
Combine the Japan engine with other jurisdiction engines, the applicable double tax agreement, and OECD commentary.
Firm Knowledge Management
Organise research, precedents, and prior advice with AI-powered retrieval across your whole knowledge base.