About Us | Big Four Tax Specialist in Tokyo | KAYANO International Tax - 榧野国際税務会計事務所

About Us

Representative

Takaaki Kayano

CPTA (Zeirishi / Certified Public Tax Accountant)
Representative, KAYANO International Tax and Accounting Office

After building his career at a Big Four accounting firm (Ernst & Young) — including a period based in Düsseldorf, Germany — and subsequently gaining experience at listed and foreign-affiliated companies, Takaaki Kayano established KAYANO International Tax and Accounting Office in 2020.

Now in his 40s, he specializes exclusively in international tax matters, with a primary focus on foreign nationals and expats working at foreign-affiliated companies in Japan — including those receiving equity compensation such as RSUs, ESPPs, and stock options. The practice handles over 100 tax return filings per year in this area.

Tax accountants who combine Big Four-level expertise, English-language capability, and deep specialization in international individual taxation are rare in Japan. This combination is the foundation of what we offer.

Career

Ernst & Young Tax	Approximately 12 years at EY Tax, including a secondment to Düsseldorf, Germany. Reached Manager level, handling complex cross-border tax matters for multinational clients.
Listed & Foreign-Affiliated Companies	Also handled corporate tax, CFC (Controlled Foreign Corporation) rules, and foreign tax credit calculations during his tenure at EY.
Since 2020	Founded KAYANO International Tax and Accounting Office. Specializing in international taxation for individuals and corporations, with a particular focus on equity compensation (RSU / ESPP / Stock Options), foreign national tax consulting, and tax audit representation.

Areas of Specialization

Equity Compensation RSU, ESPP, and stock option taxation and tax return preparation. Over 100 filings per year.

Foreign National Tax Consulting Income tax advisory for non-permanent residents and expats, including cross-border income sourcing and foreign tax credits.

Asset Reporting Preparation and filing of the Report of Foreign Assets (国外財産調書) and the Statement of Assets and Liabilities (財産債務調書).

Tax Audit Representation Direct representation in tax audits involving complex, high-income cases related to equity compensation and cross-border transactions.

Our Approach

International Tax Specialist Rather than offering general tax advisory, we focus exclusively on international tax — the area where most firms fall short and where our Big Four background makes the greatest difference.

Fully Remote We serve clients across Japan and worldwide via Google Meet. Where clients prefer to work remotely, the entire process — from initial consultation through to contract signing (electronic) and document exchange — can be completed without an office visit.

Client First We believe that working with a tax professional should make your life easier, not more complicated. We handle matters efficiently and with minimum burden on the client.

Confidentiality Strict confidentiality is maintained under Article 38 of the Tax Accountant Act. You can share your situation openly and without concern.

Office Overview

Office Name KAYANO International Tax and Accounting Office
榧野国際税務会計事務所

Established October 2020

Languages Japanese, English

Address 608, AIOS Gotanda ANNEX
1-7-11 Higashi-Gotanda, Shinagawa-ku
Tokyo 141-0022, Japan

Email [email protected]