EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients.
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Ernst & Young Tax Co.
EY is a globally connected, multidisciplinary professional services organization driven by our purpose: building a better working world – for our clients, our people and communities. We ask the better questions that unlock new approaches to the working world’s toughest challenges.
Ernst & Young Tax Co. is one of the largest tax professional firms in Japan. We provide international and domestic tax advisory and compliance services in Japan.
Top Message
Creating a better future alongside our clients in an era of transformation
We see that many corporations are expanding initiatives to transform their business in response to major shifts in global tax systems, the economic climate and geopolitics.
These transformations encompass reassessing supply chains, pursuing M&A and business restructuring, and reviewing global governance frameworks. They also come in addition to issues related to tax which are both increasingly global and complex.
While the importance and burden of tax compliance continues to grow, the number of tax accounting professionals is in decline, resulting in a pressing need for qualified talent. In this context, businesses have rising expectations both for the outsourcing of tax functions and the building of operational structures that leverage AI and other technologies.
The EY Tax group,* which includes Ernst & Young Tax Co., has developed a structure capable of addressing these complex challenges by integrating our tax services with those in the areas of law, talent, immigration, technology and AI, in addition to outsourcing. We are able to leverage the EY global network while also collaborating with other EY member firms in Japan, such as Ernst & Young ShinNihon LLC and EY Strategy & Consulting Co., Ltd. to provide comprehensive, one-stop services.
The EY Tax group is home to professionals who come from varied backgrounds and bring a wide range of experience to ensure that we are positioned to meet the increasingly diverse needs of our clients. We are committed to continually reinventing ourselves and pursuing sustainable transformation to deliver value across the business.
As a group, we now have an updated Mission, Vision and Value (MVV) framework and approach to strengthen our organizational capabilities and articulate our future direction in this era of unpredictable change.
We intend to become the first call in our field, as a professional services firm. In our role of accompanying and supporting our clients, we will continue to grow by staying attuned to shifts in society and the market, venturing into new fields and proposing innovative services. We will also provide multifaceted support through teaming that brings together our people and their diverse areas of professional knowledge and skills, demonstrating the organizational strengths of EY.
The EY Tax group is committed to recruiting and developing our people as professionals who add value and understand our clients’ business structures and management strategies. In this era, which is characterized by increasing complexity in tax systems and rapid advances in technology, we must engage with and adopt AI and other technologies. Leveraging these tools will allow us to create value which enhances our operational efficiency and to deliver high-quality services.
We will continue to propose a wide range of services and solutions grounded in the broad spectrum of our skills and focus, and leveraging both our individual and collective abilities as professionals. We are committed to exceeding our clients’ expectations by engaging with the challenges of today, embracing innovation, increasing our reach and refining our capabilities. Guided by our Mission to “Sense the signs and shape the future,” we will harness and embrace change to power our move forward, creating a better future alongside our clients.
Kazuhiro Ebina
Managing Partner Ernst & Young Tax Co.
* EY Tax group includes Ernst & Young Tax Co., EY Law Co., Ernst & Young Business Partner Co. Ltd., EY Immigration Corporation, EY Social Insurance and Labor Advisors Corporation, and EY Professional Support Co., Ltd.
Company Profile
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Ernst & Young Tax Co. |
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Locations in Japan |
Tokyo head office |
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Managing Partner |
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Foundation |
2002 (established in accordance with the revision of the Certified Tax Accountant Law) |
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What EY Tax can do |
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News Releases
LONDON, 11 December 2025. The EY organization launches the 2025 Tax Risk and Controversy Survey highlights how tax leaders are turning to generative artificial intelligence and reviewing their governance frameworks to manage emerging tax risks.
Organizations prepare for a new era of tax risks as scrutiny intensifies
LONDON, 29 MARCH 2023. The number of tax audits that companies experience is expected to increase by more than a third over the next two years according to the 2023 EY Tax Risk and Controversy Survey.
EY Business Partner opens office in Okinawa
EY Business Partner Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Kenji Kasahara) is proud to announce the opening of a new EYBP office in Okinawa on 1 September 2022.
We hereby announce that EY Business Partner Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Kenji Kasahara; hereinafter “EYBP”) will be the sole provider of the outsourcing services for bookkeeping, accounting and payroll which were previously provided by both EYBP and Ernst & Young Tax Co. as of 1 July 2022 and that these services will be immediately available to our clients.
【EY Japan】We are pleased to announce the release of EY Mobility Survey No. 2, a joint project of Ernst & Young Tax Co. and EY Immigration Corporation, which explores international mobility practices concerning overseas assignees, business travelers, and inbound foreign national employees.
【EY Japan】We are pleased to announce the release of EY Mobility Survey No. 1, a joint project of Ernst & Young Tax Co. and EY Immigration Corporation which explores international mobility practices. The survey reveals the limited impact of COVID-19 on companies’ plans for overseas assignments, the low adoption rates of methods that enable international job functions to be performed remotely, and the prevalence of tax examination findings concerning the allocation of costs associated with overseas assignees and business travelers to Japanese companies.
EY Japan Tax welcomes Partner Makiko Kawamura
We are proud to announce that Partner Makiko Kawamura has joined EY TAX (Head office: Chiyoda-ku, Tokyo; Managing Partner Kazuhiro Ebina) as of 1 April 2021.
EY enhances tax controversy practice, welcomes Mr. Atsushi Fujieda as advisory counsel
With the aim of enhancing our ability to respond to client needs for tax controversy and dispute resolution services, Ernst & Young Tax Co. has welcomed Mr. Atsushi Fujieda to the practice as our advisory counsel.
Kazuhiro Ebina appointed as the new Managing Partner of EY Japan Tax
We hereby announce the resignation of Kenji Amino, the current Managing Partner of Ernst & Young Tax Co. (Head office: Chiyoda Ward, Tokyo) and the appointment of Kazuhiro Ebina as his successor, effective 1 July 2019.
Ernst & Young Tax Co. expands and enhances its service offerings in the Chubu region
Ernst & Young Tax Co. (Below, “EY”; Main office: Chiyoda-ku, Tokyo; Managing partner: Kazuhiro Ebina) hereby announces the joining of ChuoPartners & Co. and all of its employees, including Chairman Hiroshi Yoshikawa.
We are pleased to announce that all member firms in EY Japan will be relocating to our new Tokyo office in Tokyo Midtown Hibiya during the period from February to September 2018. Ernst & Young Tax Co. will operate from the new office starting 19 March 2018.