About Us

Our professionals expertized in tax, accounting, and business development will help launch and grow your business in Japan.

Yoshiaki Seki, Japanese Certified Public Tax Accountant* has years of experience in tax and accounting advisory for multinational corporations in verious industries.

We are always passionate about working as a trusted partner of venture firms and entrepreneurs eager to succeed in Japan.



*In Japan, Certified Public Tax Accountant(Zeirishi) is the only professionals who provides the following services to a taxpayer.

(a) Acting as an agent for taxpayer;

(b) Preparing various documents for tax purposes;

(c) Consulting with a taxpayer on tax issues.

Business officeJAPAN Tax & Accounting Office
AddressExpert Office 4F,
2-10-3 koujiimachi, Chiyoda-ku,
Tokyo, 102-0083, JAPAN
OwnerYoshiaki Seki


Address and Stations


Expert Office 4F,
2-10-3 Koujimachi, Chiyoda-ku,
Tokyo, 102-0083, JAPAN


2 minutes by foot from Elevator to Ground Level Exit at Hanzomon station of the Tokyo Metro Hanzomon line.

Or 4 minutes by foot from No.3 Exit at Kojimachi station of the Tokyo Metro Yurakucho line.
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