On 19 December 2025, Japan’s ruling coalition released the outline of the fiscal year 2026 (Reiwa 8) tax reform proposals. While the proposals introduce several individual amendments to corporate and international tax rules, collectively they reflect a broader recalibration of Japan’s tax policy - one that prioritizes strategic investment, domestic economic substance, and tighter alignment between incentives and measurable outcomes.The proposals reflect a clear policy shift toward targeted incentives that support capital formation, advanced technology development, and economic security, while simultaneously tightening eligibility criteria, reducing reliance on broad-based tax benefits, and strengthening compliance expectations. This article summarizes the key corporate and international tax measures based on publications issued by the Ministry of Finance.
A new Defense Special Corporate Tax has been introduced in Japan pursuant to tax reform legislation enacted on March 31, 2025. As a consequence of this legislative change, Japan’s statutory effective tax rate will be revised.
If you are planning on doing business in Japan, knowledge of the investment environment and information on legal, accounting, taxation and human resource frameworks are essential to keeping you on the right track. This guide has been prepared for the assistance of those interested in doing business in Japan. It does not cover the subject exhaustively but is intended to answer some of the important, broad questions that may arise. When specific problems occur in practice, it will often be necessary to refer to the laws and regulations of Japan and to obtain appropriate accounting and legal advice. This guide contains only brief notes and includes legislation in force as of November 27, 2024.
For the translation of foreign currency transactions and assets and liabilities held in a foreign currency at the end of the fiscal year, the rate used for conversion and the method of conversion for each asset and liability are defined in detail for Japanese tax purposes. Although there have been no major revisions to the tax treatment of foreign currency transactions in recent years, it is necessary to consider the advantages and disadvantages for tax purposes, including the applicability of a special treatment (the so-called “15% rule”) in the event of large fluctuations in exchange rates due to the recent sharp depreciation of the Yen.
The electronic preservation system for books and documents is a system for storing books,receipts, invoices, financial statements,and other national tax related documents that are required to be preserved under tax law in electronic data format instead of paper format, and is divided into the following three categories. The system is stipulated in “ the Act on Special Provisions concerning Preservation Methods for Books and Documents Related to National Tax Prepared by Means of Computers(“the Act").
In some cases, after a company has been dissolved the disposal of its assets or the discharge of its debts result in gains and so a large gain can arise in the financial year during liquidation. The use of tax losses is therefore of key importance. If the carried forward blue tax return losses do not cover the gain on debt forgiveness, the use of expired losses is permitted under certain requirements. Further, where the dissolved company is a large company for tax purposes, use of blue tax return losses is limited 50% of taxable income. It is important to note that if residual assets remain in the last business year, the use of expired losses is not possible. Therefore, from the stage of dissolution, tax planning should be carefully carried out and the timing of asset disposal and debt forgiveness should be considered.
On June 10, 2022, the National Tax Agency revised the Administrative Guidelines on Operation of Transfer Pricing. The revision is intended to clarify Japan's transfer pricing tax treatment of related party transactions in light of the revision of Chapter Ⅷ (Cost contribution arrangement) and Chapter X (Transfer pricing aspects of financial transactions) of the OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations.
Expatriates residing in Japan for a limited duration may find themselves ineligible for old-age pension benefits, despite having made premium payments during their assignment in the country. To address such cases, the Japan Pension Service offers a Lump-sum Withdrawal Payment from Employees' Pension Insurance.
In accordance with the Japanese Income Tax Law, individuals are classified into two categories for tax residency status, namely residents and non-residents. Residents are classified further into permanent residents and non-permanent residents. Non-permanent residents are individuals who do not have Japanese nationality and have had a residence or address in Japan for less than five years in the past 10 years. Taxable income subject to income tax is different depending on individuals’ tax residency status.
A blue tax return status corporate taxpayer1 is allowed to carry forward tax losses to the following 10 business years and carry back to the previous one business year, to offset against the following business years’ income or claim a refund of the previous year’s tax. When a company carrying forward tax losses (a “tax loss holding company”) is merged into another company, the question is whether or not the tax losses of the merged company can survive in the merging company. Prior to the 2001 Tax Reform, the succession of tax losses of a merged company to a merging company was not allowed. In the 2001 Tax Reform, tax rules on corporate reorganizations were introduced into the Corporation Tax Law and the succession of tax losses of a merged company to a merging company in a qualified merger2 became possible. As a merger involving a tax loss holding company may be used for tax avoidance, special anti-avoidance rules were implemented in the Corporation Tax Law.
The tax deduction for salary and retirement allowance paid to an officer of a company is disallowed when the amount of salary or retirement allowance is excessive. The reasoning behind this is that excessive salary or retirement allowance paid to an officer is construed as hidden distributions of profits rather than business expenses. The tax authority is generally not aggressive in determining whether salary or retirement allowance paid to an officer is excessive. Where the amount of salary or retirement al lowance paid to an officer is significantly excessive with reference to services provided the officer, the tax authorities may challenge the deductibility.
It is common that a parent company provides a financially distressed subsidiary with financial support in the form of debt forgiveness, sales price discounts or interest-free loans etc. Such financial support is usually treated as a “donation” for tax purposes and its deductibility for tax purposes is restricted. However, when there are rational reasons for a parent company to support its financially distressedsubsidiary, the support is not treated as a donation and is fully tax deductible.
Reorganization has become an indispensable tool for efficient corporate management and business expansion.As one of the methods, the Companies Act provides for a legalframework of business transfer.Business transfers are used to transfer a business to another company in order to improve management efficiency, or to take over another compa ny's business in order to further expand the business.Business transfers may also be used to resolve a company's insolvency.
In Japan, legislation related to stock-based compensation has been developed in recent years, and an increasing number of companies are adopting stock-based compensation. Restricted Stock Units (RSUs), which are considered effective for retention and Long Term Incentives, became deductible under the 2017 tax reform.
When royalties are paid to nonresidents or foreign corporations, withholding tax is generally imposed on the income. The withholding tax on such royalties, may be reduced or exempted by applying a tax treaty, but there are some points that require attention regarding the application and procedures.
The Consumption Tax Law was introduced in 1989. Consumption tax(“JCT”)is a value added tax where a taxable enterprise pays the difference between the output taxes it collects and input taxes it pays during a tax period. In order to claim an input tax credit on taxable purchases, the requirement has been to maintain books and ledgers on taxable purchases and retain evidence such as invoices. From 1 October 2023, the input tax credit is only allowed for taxable purchases that pertain to qualified invoices issued by registered qualified invoice issuing enterprises with some transition rules. The following is an extract from a Q&A regarding the new input tax credit requirements for tax exempt enterprise s in particular, under the Qualified Invoicing System and the transitional provision s by National Tax Agency.
The Consumption Tax Law was introduced in 1989. Consumption tax is VAT, where a taxable enterprise pays the difference between the output taxes it collected and input taxes it paid during a tax period. In order to claim an input tax credit on taxable purchases, the requirement has been to maintain books and ledgers on taxable purchases and retain evidence such as invoices. From October 1, 2023, the input tax credit is only allowed for taxable purchases that have qualified invoices issued by registered qualified invoice issuing enterprises with exceptional transition rules.
Under the 2022 tax reform, the Japanese government will strengthen tax incentives for companies that actively raise wages, in order to encourage companies to return profits to their employees in order to realize a virtuous cycle of growth and distribution.
On 20 January 2022, the OECD released the 2022 edition of the OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations (“2022 edition”).