KAYANO International Tax and Accounting Office
Japanese Tax Services for Foreign Nationals
If you are a foreign national living in Japan, you may have Japanese tax filing obligations that go beyond what your employer handles — including equity compensation, overseas income, and asset reporting requirements.
We specialize exclusively in these situations.
Tokyo
Who We Help
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Our Services
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Japanese Income Tax Return (Kakutei Shinkoku) We prepare and file your Japanese income tax return, covering all income sources — salary, RSU / ESPP / stock options, overseas income, dividends, and more. Over 100 returns filed per year, with a strong track record in cross-border cases. |
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RSU / ESPP / Stock Option Tax Advisory Equity compensation is one of the most common sources of filing errors among foreign nationals in Japan. We handle the full process — from calculating taxable income at vesting or exercise to filing and responding to any follow-up from the tax office. ⚠️ Important note on capital gains: The capital gain figure shown on your overseas brokerage statement (e.g. E*TRADE, Fidelity, Schwab) cannot be used directly for Japanese tax purposes. Under Japanese tax law, the cost basis must be recalculated using the weighted average method adjusted for Japan (総平均法に準ずる方法), which differs significantly from the FIFO or average cost methods used abroad. Filing without this recalculation is one of the most common — and costly — errors we see. |
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Asset Reporting (国外財産調書 / 財産債務調書) Individuals holding overseas assets above the threshold are required to submit the Report of Foreign Assets (国外財産調書) and/or the Statement of Assets and Liabilities (財産債務調書). Failure to file can result in significant penalties. We handle both preparation and submission. |
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Tax Audit Support If you have received a notice or inquiry from the Japanese tax authority (国税庁), do not respond alone. We represent you directly and manage all communication, document preparation, negotiations, and follow-up responses on your behalf. |
Why Choose Us
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Our Office
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Contact
If you are a foreign national in Japan with questions about your tax filing obligations, please contact us. We typically respond within 2 business days.
Confidentiality is strictly maintained. Feel free to reach out even if you have not filed in previous years.
Our office is listed on the Financial Services Agency's registry of firms providing services in foreign languages.
- Nationwide and worldwide support available
- Strict confidentiality maintained under Article 38 of the Tax Accountant Act
- If you have not filed in previous years, voluntary filing before the tax authority contacts you can significantly reduce penalties. Please do not hesitate to reach out.
- Fee estimates are available upon request.
- For specific individual tax advice, a time-charged consultation is available at JPY 20,000 (excluding tax) per 30 minutes.
