Awards
Koichiro Yoshimura
Partner
Tokyo Office
- Languages
- Japanese, English, French
- Qualifications
- 2007(-2012), 2017, Japan (Dai-Ichi Tokyo Bar Association)
Koichiro Yoshimura is a Partner at Nagashima Ohno & Tsunematsu. His practice focuses on taxation as well as corporate and M&A transactions. Mr. Yoshimura has extensive experience in the field of taxation, covering both tax planning and contentious tax matters. His experiences within international organizations, such as the OECD have given him in-depth understanding and insight into current and future tax policies. In the area of corporate and M&A transactions, Mr. Yoshimura regularly handles cross-border transactions for both Japanese and foreign clients.
Mr. Yoshimura received an LL.B. from the University of Tokyo in 2006, an LL.M. from Harvard Law School in 2013, and an LL.M. in Taxation from New York University School of Law in 2014. Upon graduation from Harvard Law School, he was awarded the Sidney I. Roberts Prize (best paper in the field of taxation). Between 2015 and 2017, Mr. Yoshimura worked as an advisor at the Secretariat for the OECD Committee on Fiscal Affairs following a six-month internship at the Secretariat for the UN Committee of Experts on International Cooperation in Tax Matters.
Mr. Yoshimura is admitted to practice law in Japan (2007). He is a Member of the Board of the International Fiscal Association Japan branch.
Practice Areas
Education/Professional Experience
- 2006
- The University of Tokyo (LL.B.)
- 2007 -
- Nagashima Ohno & Tsunematsu
- 2013
- Harvard Law School (LL.M., Sidney I. Roberts Prize)
- 2014
- New York University School of Law (LL.M. in Taxation)
- 2014 - 2015
- Internship at the United Nations (UN), Department of Economic and Social Affairs (DESA), Financing for Development Office, International Tax Cooperation Unit
- 2015 - 2017
- Organisation for Economic Co - operation and Development (OECD), Centre for Tax Policy and Administration (CTPA), International Co - operation and Tax Administration Division
- 2020 - present
- Partner, Nagashima Ohno & Tsunematsu
- 2025 - present
- Visiting Associate Professor, The University of Tokyo, Graduate Schools
Awards
Seminars
-
November 12, 2021 (Fri) 15:00 - 17:30OECD Pillar 2: Minimum tax Recent tax developments in the Asia-Pacific region
- Koichiro Yoshimura (Moderator)
Online
- Tax
- Tax Advice and Planning
-
November 13, 2020 (Fri) 21:00 - 22:15Roundtable discussion of global trends – COVID responses: relief from PE/Nexus/Residency and Tax-Based Stimulus
- Koichiro Yoshimura
Online
- Tax
- Tax Advice and Planning
-
April 17, 2018 (Tue) 14:00 - 16:00Tax Law Seminar “Practical Considerations on Japanese Tax Issues and Disputes in Overseas Expansion Destinations”
- Yushi Hegawa
- Koichiro Yoshimura
JP Tower Hall & Conference
- Tax
- Tax Advice and Planning
- Tax Controversy
Publications
-
Articles
Chambers Global Practice Guides Tax Controversy 2025 Japan – Law & Practice
(May 2025)
Koichiro Yoshimura
- Tax
- Tax Advice and Planning
- Tax Controversy
-
Articles
Chambers Global Practice Guides Project Finance 2024 Japan – Law & Practice
(November 2024)
Rintaro Hirano, Koichiro Yoshimura, Yoshimune Muraji (Co-author)
- Finance
- Project Finance
- Infrastructure/Energy/Environment
-
Articles
Chambers Global Practice Guides Alternative Funds 2024 Japan – Law & Practice
(October 2024)
Keiko Shimizu, Koichiro Yoshimura (Co-author)
- M&A
- Private Equity/Venture Capital and Startups
-
Articles
Chambers Global Practice Guides Tax Controversy 2024 Japan – Law & Practice
(May 2024)
Koichiro Yoshimura
- Tax
- Tax Advice and Planning
Topics
-
Announcements
NO&T secures a National Tax Tribunal decision, cancelling a reassessment issued under the Japanese Controlled Foreign Companies (CFC) regime
-
Announcements
Announcing Partners, Foreign Law Partner, Counsel and Foreign Law Counsel of NO&T
-
Announcements
Announcing New Partners and Counsel of NO&T