Message from the President

After working in sales and marketing, I started working for a tax accounting firm offering international tax and accounting services when I was 33 years old. Then, after working for the firm for 11 years, I opened my own office in September 2017.

Our office mainly offers one-stop services to foreign-affiliated companies that have just started business in Japan, assisting them in their accounting, tax, payroll and other back-office affairs.

We assist our clients with forging trusting relationships with their overseas parent corporations through closely reporting to and communicating with accounting and financial managers of the parent corporations. We consider this as one of our major roles. (See the Our Priorities page.)

If you are a business or accounting manager who has difficulty in communicating with overseas parent corporations concerning back-office operations, we are happy to help you. Please do not hesitate to contact us.

Of course, we also welcome inquiries from managers of domestic companies experiencing communication issues with their current tax accountants.

Certificate Public Tax accountant (registration number: 121626) 

Toshio Kojima

Office Information

NameKojima Toshio Tax Accounting Office/TK Accounting Service Co., Ltd.
Foundation dateSeptember 1, 2017
Address706 Sunpark Mansion Takadanobaba 1-4-21 Takadanobaba, Shinjuku Ward, Tokyo 169-0075
Phone+81 (0)3 6770 8881  mobile +81 90 9681 0643
PresidentToshio Kojima (tax account registration number: 121626)

Toshio Kojima’s career

August 1972Born in Hanno City, Saitama Prefecture
March 1991Graduated from Saitama Prefectural Kawagoe High School
March 1996Graduated from the Faculty of Science and Engineering, Waseda University
April 1996Joined Fuji Xerox Co., Ltd.
July 2000With an in-house recruitment system, temporarily transferred to Fuji Xerox Learning Institute Inc. (Persol Learning Institute Co., Ltd. at present)
September 2006Joined Actus Tax Corporation
September 2009Joined Earth Tax Corporation
September 2017Opened own office in Minamiikebukuro, Toshima Ward
October 2020Office moved to Takadanobaba, Shinjuku Ward

Toshio Kojima started his career at Fuji Xerox Co., Ltd., where he handled sales and marketing for photocopy machines, fax machines, printers and other office automation equipment. At Fuji Xerox Learning Institute Inc., Toshio handled employee training, sales force training and consulting services. Through working for these companies, Toshio obtained experience in selling both tangible products and intangible services.

At Actus Tax Corporation, Toshio worked at the National Tax Division, where he assisted foreign-affiliated companies venturing into the Japanese market with their accounting and tax affairs. After moving to Earth Tax Corporation, Toshio handled a broader range of projects, including special purpose company (SPC) projects, as well as continuing to assist foreign-affiliated companies. Then, in September 2017, Toshio founded TK Accounting Service Co., Ltd. and opened Kojima Toshio Tax Accountant Office.

Kojima Toshio Tax Accountant Office mainly offers services to foreign-affiliated companies, assisting them in their tax and accounting affairs. Working together with lawyers, certified judicial scriveners (shihoshoshi), labor and social security attorneys (shakaihoken-romushi) and other professionals, our office offers one-stop services satisfying all the back-office needs of our clients.