- ¥0Free first consultation(up to 30 minutes)
- ENConsultations and correspondence in English
- ✉In person, online, phone, email, LINE or WhatsApp
- ◎Clients across Japan and overseas
Who We SupportAn English-speaking tax accountant for your business in Japan
Okamoto Accounting Office is led by a Japanese CPA and certified tax accountant who works in both Japanese and English. We are based in Kawasaki, next to Tokyo, and support clients throughout Japan and overseas.
Foreign companies & foreign nationals doing business in Japan
Accounting and tax filing for Japan branches and subsidiaries, explanations in English, direct communication with your overseas head office
Expats & foreign residents in Japan
Individual tax returns, foreign tax credits, overseas assets reporting, tax procedures when leaving Japan
Non-residents of Japan
Non-resident tax returns and refunds, tax agent services, taxation of Japanese retirement allowances and pensions, inheritance planning
Japanese companies expanding overseas
Setting up, restructuring and closing overseas subsidiaries, intercompany transactions, tax for expatriate employees
Corporations & sole proprietors
Bookkeeping, tax advisory, annual tax returns, tax audit support and business advice
Why Choose UsThree reasons clients choose us
Both a CPA and a tax accountant
We audited listed companies and funds at a major audit firm, then handled domestic and international tax at a major tax firm. Knowing both accounting and tax lets us go beyond tax calculations on complex matters such as IPO preparation and reorganizations.
International tax with on-the-ground experience
Five years in Shanghai and Suzhou, China, and running an accounting firm in Mexico since 2016. Our advice reflects local practice and business customs you will not find in textbooks, and we communicate directly with your overseas head office in English.
Direct, fast responses from the founder
Your questions are handled personally by Takuya Okamoto, not passed on to junior staff. Feel free to reach out even with a quick question — we answer promptly so your decisions are never put on hold.
Our ServicesServices
Whatever the size or stage of your business, in Japan or abroad, we provide one-stop support from accounting and tax to business management.
International Tax
Japan branches, expats, non-residents and overseas expansion
Tax Advisory & Filing
Bookkeeping, tax advice, corporate and individual tax returns, tax audits
Starting a Business
Notifications, funding plans and loan applications
Cloud Accounting
freee and Yayoi setup, invoice system and e-bookkeeping compliance
Inheritance & Gift Tax
Tax returns and inheritance planning, including for overseas residents
Consulting & Audit
Due diligence, valuation, reorganization, internal control, audit
Our PhilosophyThe “3S” we stand for
Speed
In business, the speed of decision-making matters. Our basic policy is to answer your questions and concerns quickly.
Support
Beyond bookkeeping and tax filing, we listen closely to the concerns of business owners and finance staff, your current situation and where your business is heading. We want to be the partner you can always rely on.
Solution
For every question or concern you bring us, we think through and propose a solution.
MessageWhat we value
- Being the closest advisor to business owners — from tax planning and cash flow to accounting reviews, internal rules and business succession
- Not stopping at financial statements, but explaining your numbers in a way you can use for decisions
- Avoiding jargon and explaining clearly with concrete examples
- Supporting you at every stage — startup, growth, maturity and succession
- Working with trusted specialists when issues go beyond tax
CPA / Certified Tax Accountant Takuya Okamoto
VoicesWhat our clients say
Precision machinery manufacturer
F.Y., T Co., Ltd.
As the Japan branch of an overseas parent company, we struggled to find a firm willing to take us on. Mr. Okamoto explained international tax clearly and communicates directly with our parent company in English, which has greatly reduced the burden on our Japan team.
Trading company
O.M., A Co., Ltd.
As a foreigner, I find Japanese tax and accounting especially hard to understand, but everything is explained in English, so I can trust it. When I send a message in English, I get a quick reply in English and can focus on my business.
Living overseas
O.Y.
Living abroad, I had no one to consult about Japanese tax. Despite the time difference, Mr. Okamoto quickly helps me with inheritance planning via messaging apps and email. His international tax advice gives me peace of mind.
