Tax
Asia-Pacific Guide 2025 : Japan
Band 1
Contact number
+81 3 5220 1800About
Provided by Mori Hamada & Matsumoto
Our firm, together with “MHM Tax Advisory Services”, can advise our clients on both legal and tax aspects of the matter with an excellent harmonization of our lawyers and licensed tax accountants who have various professional backgrounds. With that strength, we have significant experience on complex and diverse M&A transactions, finance transactions, intra-group restructuring, tax investigations and other tax disputes, including a number of cross-border matters.
Chambers Review
Mori Hamada & Matsumoto is a trusted counsel for leading corporations including manufacturers and investment funds. The firm is often engaged by domestic and international clients on the tax aspects of M&A transactions and restructurings. The team is able to draw upon the expertise of accountants and former tax authority officials to provide comprehensive assistance to clients. It is also skilled at resolving contentious tax matters, and assisting individual investors with issues concerning temporary income. The firm is additionally adept at capital markets transactions and its related tax implications.
Work Highlights
- Mori Hamada & Matsumoto conducted research for the Japanese Ministry of Economy, Trade and Industry on securing human resources for startups, including on stock option and related taxation systems.
Strengths
Provided by Chambers
"I thought that they had a very strong ability to respond to the projects we requested. They responded quickly while maintaining quality."
"MHM have a good team of English-speaking lawyers who cover different aspects of law. I'm happy with their services."
"I thought that they had a very strong ability to respond to the projects we requested. They responded quickly while maintaining quality."
"MHM have a good team of English-speaking lawyers who cover different aspects of law. I'm happy with their services."
Notable Practitioners
Atsushi Oishi is a highly respected taxation expert with a broad offering spanning transactional and regulatory work, including transfer pricing and audit matters, with additional expertise in tax disputes.
"I believe that Mr Oishi is not only well-versed in practical matters, but also a lawyer who can proceed with difficult cases through careful dialogue."
"Oishi-san speaks good English and can explain complicated Japanese concepts to clients clearly."
Hiroshi Oyama is commended by clients for his ability to calibrate advice based on his experience as a former secondee of the Japanese tax bureau. His practice ranges from audit and transfer pricing advice to tax planning and litigation.
"Hiroshi Oyama has a high level of expertise in tax, legal and trust matters, and a wonderful personality. He is the first person I consult with when I have any problems."
"I feel the performance is very good compared to similar services I receive from tax accounting firms."
Hiroyuki Kurihara offers clients expertise in tax audits and tax planning for cross-border deals and disputes mandates.
"Mr Kurihara responds quickly, understands difficult financing transactions and provides a high level of theoretical analysis and important advice for making decisions in our tax department."
"Hiroyuki Kurihara accurately grasped the client's needs and worked hard to reach the desired conclusion in the shortest possible time."
Makoto Sakai handles a broad range of tax mandates, including defending audits and challenging assessments by the National Tax Agency, in addition to a variety of contentious tax mandates. He also advises on the taxation elements of large-scale M&A deals.
"He is extremely experienced and knowledgeable about international taxation."
"I was very impressed and very pleased with the services provided by Mr Sakai."
Akihiro Yamada is a licensed tax accountant whose expertise is brought to bear for the firm's clients in his advice on tax planning and wealth management.
"Akihiro Yamada has a wealth of experience in tax practice."
Koyo Madokoro is a licensed tax accountant and partner at Mori Hamada & Matsumoto. He advises on tax and wealth management, frequently for high net worth individuals.
"Koyo Madokoro's explanations are always clear and easy to understand, and they are always helpful. I have full confidence in him."
Ranked Lawyers at
Mori Hamada & Matsumoto
Japan
Members
Provided by Mori Hamada & Matsumoto
Head of Department
Head of Department
Koyo (Licensed tax accountant) Madokoro
Head of Department