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Okamoto Accounting Office

Services

Whatever the size or stage of your business, in Japan or abroad, we provide one-stop support from accounting and tax to business management — explained in English.

Meeting room overlooking the city

International Tax

International tax in Japan, in English

Drawing on experience in the international tax department of a major tax firm, five years in China and running an accounting firm in Mexico, we solve tax issues that cross borders.

Foreign companies & foreign nationals doing business in Japan

  • Bookkeeping, corporate tax and consumption tax filing for Japan branches and subsidiaries
  • Japanese tax and accounting explained in English
  • Direct communication with your overseas parent company in English
  • Monthly reports prepared in English

Japanese companies expanding overseas

  • Tax advice on setting up, restructuring and closing overseas subsidiaries
  • Tax advice on transactions with overseas subsidiaries and foreign companies
  • Income tax for expatriate employees

Non-residents of Japan

  • Non-resident tax returns (including refund claims)
  • Acting as your tax agent (nozei kanrinin)
  • Taxation of Japanese retirement allowances, public and private pensions
  • Inheritance planning for people living overseas

Foreign nationals living in Japan

  • Tax returns for foreign employees and sole proprietors (overseas income or assets, foreign tax credits, etc.)
  • Statement of overseas assets and statement of assets and liabilities
  • Tax procedures when leaving Japan (tax agent, resident tax, final tax return before departure)
  • How Japanese taxes work, explained in English

Email, LINE and WhatsApp make it easy to consult us across time zones.

Tax consultation

Tax Advisory

Tax advisory & filing

Bookkeeping and in-house accounting support

We record your transactions based on the receipts and invoices you send us. If you want to bring accounting in-house, we show your staff how to use the accounting software, give advice suited to their level and follow up on their progress.

Tax advisory (tax questions and accounting reviews)

We explain tax questions and issues clearly and propose the best solution. If you do your own accounting, we check that it is correct and reflects how your business actually operates.

Annual tax returns

We estimate your year-end results early, plan accordingly, and prepare your corporate tax and consumption tax returns. We also prepare individual income tax returns for sole proprietors and people with income from property sales or side businesses.

Tax audit support

We support you from preparation and attendance on the day of the tax audit through follow-up with the tax office, presenting your position as a professional and easing the practical and emotional burden.

Business meeting

Startup Support

Starting a business in Japan

We support people starting a business or setting up a company. We compare sole proprietorship and incorporation, handle notifications to the tax office and other authorities, and help with funding plans and loan applications — guiding you through the key points and schedule at the start.

Reviewing documents

Cloud Accounting

Cloud accounting & going paperless

We help you move from paper receipts and invoices to cloud accounting and electronic records: setting up freee or Yayoi Accounting Online, linking bank accounts and credit cards, complying with Japan’s Electronic Bookkeeping Act and qualified invoice system, and using AI tools — with patient support even if you are not comfortable with systems.

Private consultation

Inheritance & Gift Tax

Inheritance & gift tax

We prepare Japanese inheritance tax and gift tax returns and advise on inheritance planning. Even when the estate includes assets that are hard to value, such as real estate or unlisted shares, we explain each step clearly. We also tell you which documents are needed, when to collect them and how to obtain them.

Presenting solutions

Consulting

Consulting

Accounting and tax consulting

Financial and tax due diligence to evaluate target companies and uncover potential risks, business valuation based on objective data, and reorganization support from structuring and tax simulations to project management.

Internal control

Drafting and reviewing internal rules, redesigning business processes for efficiency, and preparing the documentation required under J-SOX.

Business restructuring

For companies with declining performance, we identify financial issues and propose solutions, including business plans, cash flow forecasts and break-even analysis.

Reviewing financial documents

Audit

Audit

Having audited the financial statements of many listed companies and funds at a major audit firm and its overseas office, we perform audit procedures to the same standard. While we do not audit listed or large companies, we accept statutory audits of small companies under the Companies Act, audits of special purpose companies (SPCs) and public interest corporations, and voluntary audits of overseas subsidiaries.

To maintain independence, we may not be able to audit clients for whom we provide tax advisory or other ongoing services.

Business meeting

Other Services

Other services

Back-office outsourcing

For small companies, hiring accounting and administrative staff is costly and difficult, and a resignation can bring work to a halt. Outsourcing administration, including accounting, to specialists ensures stable, high-quality operations so you can focus on your business.

Outside corporate auditor

As an independent professional with experience as a corporate auditor of private companies and overseas subsidiaries, we serve as an outside corporate auditor covering both operational and accounting audits.

Contact Us

Book a free consultation in English

Your first 30-minute consultation is free. Whether you are in Japan or overseas, LINE and WhatsApp are the easiest ways to reach us.

+81-90-9267-4460Weekdays 9:00–18:00 (Japan time)

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