Financial, IT and Internet Law — and Dispute Resolution
Nakasaki Law Firm advises businesses on Japanese financial law, particularly financial instruments, payments and financial-crime compliance, as well as IT, internet services and cross-border transactions. We welcome enquiries from overseas companies, individual entrepreneurs, in-house legal teams and law firms seeking advice on Japanese law.
Whether you are assessing a service for the Japanese market, negotiating a commercial agreement or reviewing a compliance framework, we help identify the legal issues and practical steps relevant to your business.
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News & Insights
Recent firm news and practical guidance for businesses working with Japan.
Starting a Business in Japan: A Practical Legal Checklist
Planning your Japanese business, preparing for incorporation and registration, and coordinating the steps before launch.
2026 Publication Update: Ninth Editions of Two Japanese Legal Guides
New editions of Ryu Nakasaki’s Japanese-language guides to criminal proceeds prevention and foreign exchange and trade-related laws.
Nakasaki Law Firm Resumes Practice in 2026
Our practice and support for international businesses, overseas entrepreneurs and law firms.
How We Can Help
Company Formation and Business Launch in Japan
We help overseas companies and individual entrepreneurs establish a company and start doing business in Japan, with support from company formation and incorporation registration through business launch. We also advise on proposed business models, applicable Japanese regulations, customer-facing terms and agreements with local partners.
Financial Instruments, Payments and Financial Regulation
Advice on card and cashless payments, payment services and related financial regulation, including the Payment Services Act, the Installment Sales Act and the Financial Instruments and Exchange Act. Drawing on experience with Type I Financial Instruments Business, we assist with regulatory registration, contracts, internal policies, staff training and compliance reviews.
AML/CFT, Sanctions and Financial-Crime Compliance
Advice on Japan’s Act on Prevention of Transfer of Criminal Proceeds, FATF standards, customer due diligence and compliance frameworks, as well as foreign-exchange regulation and economic sanctions affecting cross-border business.
Regulatory Enquiries and On-Site Inspections
We assist with responses to regulatory questionnaires and enquiries, the collection and organisation of supporting materials, preparation for and responses to on-site inspections, and subsequent remediation.
IT, Internet Services and Cross-Border Contracts
Drafting, review and negotiation of English-language commercial agreements, including licensing and business collaboration arrangements. We bring extensive experience negotiating with overseas companies, including experience gained at a major internet company.
Litigation, ADR and Dispute Resolution
A legal argument or a critical piece of evidence can change the outcome of a dispute. We analyse complex facts, develop legal arguments, collect and examine evidence, and prepare persuasive written submissions. Where relevant, we also examine overseas case law and legal discussion.
Ryu Nakasaki has obtained favourable judgments in multiple lawsuits involving amounts of JPY 100 million or more.
Direct Attorney Involvement and Cost Efficiency
The attorney handles matters consistently from analysis and strategy through execution. We use AI to improve the efficiency of document organisation, research and drafting, reducing unnecessary staffing and duplicated work. Legal judgment and review of the final work remain with the attorney. We also assist legal and compliance teams with workflow improvements and AI use.
Experience Across Government, Business and Private Practice
Managing attorney Ryu Nakasaki’s experience spans private practice, government service, a major internet company and financial and payment services businesses. He has extensive experience negotiating with overseas companies and has lived abroad for eight years. He handles discussions with overseas headquarters and English-language materials.
He is the author of detailed commentaries on Japanese anti-money laundering and foreign-exchange legislation, both now in their ninth editions (2026). He is also Representative Director of the Japan Anti Money Laundering Association.
Read Ryu Nakasaki’s profile and publications
For Overseas Counsel and In-House Teams
We welcome enquiries about Japanese-law issues arising in international matters. Please describe the business or transaction, the questions requiring advice, the parties involved and any deadline. The proposed scope, deliverables and fees are discussed before an engagement is agreed.
Research and Publications
Our research covers financial-crime prevention, FATF Recommendations, Japanese anti-money-laundering legislation and foreign-exchange regulation. The resources below include Japanese-language materials; the attorney profile provides English descriptions of publications.
- AML/CFT research and translation resources
- Japanese translations of US, EU and Chinese AML legislation (in Japanese)
- FATF mutual evaluation and follow-up reports (Japanese-language index)
- Books (in Japanese)
Discuss Your Matter
Please read how a consultation works and contact us through the enquiry form. We review the matter and conduct a conflict check before confirming whether we can assist.