Common Japanese Tax Issues Explained by Japan Tax Advisors: A Practical Guide

 Navigating the intricacies of the Japanese tax system can prove to be quite difficult, particularly for individuals and businesses that are not well-versed in local regulations. A tax advisor in Japan is essential in assisting taxpayers to comprehend and effectively manage their obligations. 

This comprehensive Guide to Japanese Taxes matters as explained by experts, providing insights to help you avoid potential pitfalls.

Understanding Income Tax Deductions and Thresholds

One of the most common inquiries pertains to personal income tax deductions. Recent reforms in 2025 have raised the basic deduction limit from ¥480,000 to ¥580,000 for individuals with earnings up to ¥23.5 million. This adjustment aims to alleviate the tax burden in light of inflationary pressures.

The annual income threshold for taxation has increased from ¥1.03 million to ¥1.6 million.

Special deductions have been introduced for dependents aged 19 to 22.

Employment income deductions have also been modified to align with current labor market demands.

Corporate Tax Compliance and New Regulations

For businesses, recent corporate tax reforms have established a 4% special defense tax that will take effect from April 2026, in addition to aligning with the OECD’s Global Minimum Tax framework.

New lease accounting standards now mandate the inclusion of leases on the balance sheet for tax purposes, which differs from standard accounting practices.

Measures have been implemented to combat tax base erosion by multinational corporations through regulations such as the undertaxed profits rule (UTPR).

Tax treatments for corporate reorganizations, including spin-offs, have also been updated.

Common Tax Controversies and Audit Risks

Japanese tax authorities are recognized for their meticulous audits. Tax controversies frequently arise from:

Discrepancies in reported income or deductions.

Misinterpretation of intricate regulations.

Transfer pricing challenges in multinational transactions.

Why Should You Consult a Japan Tax Advisor?

Stay informed about annual reforms and regional tax variations.

Take advantage of tailored strategies for optimizing income tax.

Obtain assistance with multinational tax matters and expatriate tax submissions.

Reduce the risks of audits and controversies through professional preparation.

Conclusion

This guide outlines significant tax issues in Japan that affect both individuals and corporations. A reliable Japan Tax Advisor is essential for interpreting the Guide to Japanese Taxes, offering clarity and practical advice.

Whether you are an expatriate, a small business, or a multinational corporation, collaborating with a Japan tax advisor improves the effectiveness of your tax strategy.

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