Shinsei’s vision is to contribute to the development
of the Japanese economy by supporting clients’ global activities
in the areas of international tax matters, financial affairs, and accounting.




Accounting and Tax Consulting Services

Accounting and Tax Consulting Services

  • Small Business/Venture Support

    Tax filings (Corporate tax, income tax, consumption tax, fixed property tax and so on) Up-to-date on every revision of the tax code that could affect tax filing, our firm provides appropriate tax filing services for each client. We offer our services to realize the best tax filing based on the latest tax laws.

  • Supporting clients
    facing tax audits

    The scope of tax inspections has been changing as transactions between corporations become more complicated and more multifaceted. Paying attention to such trends, our firm provides a broad array of services to support clients dealing with tax audits.

  • Corporate M&A

    Global Merger and acquisition brings a big opportunity to a company to grow but at the same time, it brings a big risk of big lost. To make the M&A successful, it is very important to study about the corporate financial index of the target corporation and make appropriate structure from the result of the study. We provide with a wide range of service related to international corporate reorganization.

Transfer Pricing Services

Transfer Pricing Services

Transfer pricing documentation (“TPD”)

In this service, we provide documentation support required in the transfer pricing tax audits and assist advanced planning on how to deal with a request to disclose information of transfer pricing calculation at tax compliance.
TPD project scope and procedure

TPD project scope and procedure

  • Analyze the basic facts of the target related companies profile, capital ties, outline of group network, organization structure, profits and losses of group companies and outline of your business field.

  • Determine the form, flow, value of business among the related companies as well as their pricing strategy and price negotiation process.

  • Analyze function and risk of the significant related companies with target transactions.

  • Based on the above results, we shape a fair transfer pricing method for the target transaction, select comparables and analyze the calculation of profit ratio.

  • Putting analyses down in writing, we assist in preparation to effectively defend against tax audits in Japan.

  • Advisory agreement

    It is vital to reiterate overall examination of business practice and contractual relationship within your group companies in order to maintain consistency with the transfer pricing policies. We conduct a review of your contracts from a perspective of transfer pricing at your request when adapting new requirements.

  • TPP, CbCR, LF&MF, tax audit, and APA

    For more information on services such as TPP/CbCR/LF&MF, tax audit, and APA, please contact us.

Cross-Border Property Planning For Individual and Families

Cross-Border Property Planning For Individual and Families

  • Individual tax preparation

    We provide individual tax preparation services to customers who has business income or real property income who need to file tax returns in Japan. Our expert tax accountant will provide documentation support required in the preparation of various types of tax filing documents of various types such as income tax, overseas assets reporting.

  • Inheritance tax

    We offer you with one stop service by our experienced expert tax accountant who will help you from consulting inheritance, collecting documents, appraising assets, assuring the value, to submitting the tax filing documents.

  • Supporting clients facing tax audits
    and receiving letter "お尋ね"

    Please Contact Us


信を以って之と成す 衛霊公第十五17


Name of our company
Shinsei International Tax Co.
Shinichi Takagi (Certified Public Tax Accountant)
Shinichi Fukushima (U.S.C.P.A.)
Masatoshi Ito (Certified Public Tax Accountant)
Number of Employees
10 persons
Websites about our business profiles
Accounting services: 
Transfer pricing consulting: 
3F Tamagawa-Shinjuku Bld. 2-9-22 Shinjuku, Shinjuku, Tokyo 160-0022 JAPAN
TEL 050-3852-6795
FAX 03-6893-8906


  • Shinichi Takagi

    Shinichi Takagi

    Shinsei International Tax Co.
    (Certified Public Tax Accountant.)

    Graduated from College of Economics in
    Yokohama National University and joined
    Accenture Japan Ltd.
    Joined Zeirishi-Hojin
    Established Shinsei International Tax Co.

    He mainly undertakes general tax accountant services and also specializes in transfer pricing consulting and international tax practice strategy consulting.
    In Zeirishi-Hojin PricewaterhouseCoopers, he had wide-range experiences in the drafting of transfer pricing documents, the development of transfer pricing policies and so on. Moreover, he provides Japanese companies operating overseas with international tax practice strategy consulting services by utilizing his knowledge on transfer pricing and international tax practice.

  • Shinichi Fukushima

    Shinichi Fukushima

    Shinsei International Tax Co.

    Graduated from Faculty of Economics in the University of Tokyo and joined Yamatake Corporation (Azbil Corporation now)
    Joined Zeirishi-Hojin PricewaterhouseCoopers
    Joined Shinsei International Tax Co.

    He compiled and reported consolidated accounting in Yamatake Corporation and was engaged in international tax practice and related tasks in regard to special purpose companies, investments from overseas and foreign corporations in Zeirishi-Hojin PricewaterhouseCoopers. Moreover, he was engaged accounting and tax practice in small and medium-sized enterprises and health-care corporations in Oyama Accounting Co. Ltd., to obtain the experience in accounting and tax practice in enterprises of various scales. He is engaged mainly in international tax practice and general tax accounting practice and is also willing to help a client improve its performance by utilizing his career in which he worked not only for accounting experts but also for private companies.

  • Masatoshi Ito

    Masatoshi Ito

    Shinsei International Tax Co.
    (Certified Public Tax Accountant)

    Graduated from Department of Economics in Tokyo Keizai University
    The Tokyo Regional Taxation Bureau (“TRTB”) of the National Tax Agency (“NTA”) in Japan
    Joined Shinsei International Tax Co.

    Entering the TRTB as a national tax expert, he was engaged in official works on Transfer Pricing fields, such as handing of Mutual Agreement Procedures (MAP) ot the NTA, surveys, Advance Pricing Arrangement (APA) examinations, court cases, and tax reform, for 11 years.
    After registration of a certified public tax accountant in June 2017, he has been making tax consultations dedicated to transfer pricing. Also he teaches in many different seminars such as business research seminar and seminar at Mizuho Research Institute Ltd.
    He wrote a book titled “How to prepare Transfer Pricing Documentation(2nd ed.)” (published by Chuo Keizai-sha in December 2018), and “Transfer Pricing Practices Q&A” (published by Seibun-sha in March 2020).

  • Kazuaki Eda

    Kazuaki Eda

    Shinsei International Tax Co.
    (Business Document Consultant)

    Graduated from Department of Economics, Faculty of Political Science and Economics in Waseda University and joined Seiko Epson Corporation
    Joined Shinsei International Tax Co.

    In Seiko Epson Corporation, he was engaged in the following projects: 1) international tax practice work around transfer pricing, 2) general work in book closing and accounting around overseas transactions, 3) financing work such as fund raising and administration and 4) development of intermediate-term management plans, dealing with M&A and the introduction of a new accounting system. Thereafter, he set up his own practice as a business document consultant with an administrative scrivener’s license.
    He is willing to support his client’s business activities by utilizing his career on transfer pricing and international tax practice from the standpoint of private companies.


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