ABOUT TSUJITAX

International Tax & Accounting Services in Japan

Tsuji Certified Tax Accountant Office is a Tokyo-based international tax and accounting firm providing practical, reliable, and client-focused services to foreign-owned companies, international businesses, and entrepreneurs operating in Japan.

Office Profile

  • Company Name
    Tsuji Certified Tax Accountant Office
  • Office Address
    2F ME Bldg. 23-1 Shinsencho,
    Shibuya-ku, Tokyo 150-0045, Japan
  • Telephone
    +81-3-6407-8648
  • Business Services
    International Accounting Outsourcing
    International Tax Consulting
    Support for Corporate Establishments
  • Main Bank
    Bank of Tokyo-Mitsubishi UFJ

Tsuji Certified Tax Accountant Office, also known as Tsuji Tax, provides tax, accounting, and advisory services for clients with international business needs in Japan.

Our Managing Director, Toshio Tsuji, has many years of professional experience in accounting, taxation, auditing, finance, and international business consulting.

Since its establishment in 2005, Tsuji Tax has supported small and medium-sized companies, foreign-owned Japanese subsidiaries, and business owners who require reliable professional support in Japan.

We are committed to providing clear, practical, and high-quality solutions that support our clients’ growth and compliance in Japan and beyond.

Managing Director Profile


Toshio Tsuji
Founder & Managing Director, Tsuji Tax
Over two decades of experience in international accounting, taxation, finance, and management consulting.

Toshio Tsuji has held senior roles in both international and domestic business environments, developing extensive expertise in cross-border tax, accounting, corporate finance, IPO support, M&A, and management consulting.

He leads Tsuji Tax with a practical, client-first approach, helping businesses and entrepreneurs solve complex tax and accounting issues in Japan.

Professional Experience

2005 – Present
Tsuji Tax Accounting Office
  • Provides accounting, finance, tax, and IPO-related services to small and medium-sized clients.
  • Prepares corporate and individual tax returns.
  • Established Davinci Consulting, Inc. as CEO in 2007 to provide M&A, international business, and management consulting services.
2002 – 2005
Accounting Director, Joseph Limited / UK Company
  • Managed company assets.
  • Handled accounting reports and cash flow reports.
  • Managed portfolio-related operations.
2001 – 2002
Consultant, Certified Public Accountant Office in Shinjuku, Tokyo
  • Prepared Japanese corporate tax returns.
  • Handled auditing-related work.
  • Provided consulting services for corporate clients.
2000 – 2001
Consultant, International Consulting, Inc. in Akasaka, Tokyo
  • Provided accounting outsourcing services.
  • Provided consulting services for corporate clients.
2000
Accountant, Certified Public Tax Accountant Office in Shibuya, Tokyo
  • Prepared Japanese tax returns for corporations and individuals.
  • Checked accounting accuracy and supported tax compliance work.