Introduction
For foreign corporations operating in Japan, understanding the Japanese tax system is important not only at the start of business but also for maintaining compliance thereafter.
Regarding foreign corporations, it may be thought that "if a corporation is not established in Japan, Japanese taxes do not apply." However, in reality, there is a possibility of being subject to Japanese taxation on certain domestic source income, not only when having a permanent establishment (PE) in Japan but also in cases without a PE.
Additionally, it is necessary to individually consider multiple tax items, including not only corporate tax but also local taxes such as corporate inhabitant tax and corporate enterprise tax, withholding income tax related to payments from foreign corporations to domestic businesses in Japan, and consumption tax related to the sale of goods and provision of services.
Furthermore, when a tax treaty applies, there may be a different taxation relationship than under Japanese domestic law.
This article organizes the basic tax points that foreign corporations conducting business in Japan should confirm, from the perspectives of PE, domestic source income, corporate tax, withholding tax, consumption tax, tax treaties, and tax representatives.
1. Basic considerations for Japan's taxation of foreign corporations
The key points of corporate tax for foreign corporations in Japan are not only whether they are "registered as a corporation in Japan," but also "what kind of domestic source income they are earning," "whether they have a PE in Japan," and "whether that income is attributable to the PE."
In principle, foreign corporations are subject to Japanese taxation on domestic source income generated within Japan. Domestic source income includes not only income attributable to a PE but also income arising from the management, holding, or transfer of assets located in Japan, consideration for the transfer of domestic land, consideration related to the provision of personal services in Japan, rental income from real estate, certain interest and dividends, loan interest, and usage fees.
Therefore, even if a foreign corporation is not registered in Japan, it may still be required to file and pay corporate taxes and respond to withholding tax depending on the nature of its transactions within Japan.
In particular, in cases where a foreign parent company provides goods or services to customers in Japan, it cannot be determined that there is no Japanese tax relationship solely based on the fact that "the contracting party is a foreign corporation." It is necessary to comprehensively confirm the substance of the transaction, the location of service provision, contractual relationships, the location of assets, and the activities of employees and agents.
2. What is a PE (Permanent Establishment)?
A key concept in considering the Japanese taxation of foreign corporations is PE (Permanent Establishment).
Generally, a PE refers to a certain business base or similar that a foreign corporation uses to conduct business in Japan. Under domestic law, issues arise not only from branches, offices, and factories as PEs but also from PEs related to construction and installation work, and certain agent PEs.
For example, if a foreign corporation establishes a branch or office in Japan and conducts business continuously, it is highly likely to qualify as a PE.
On the other hand, if a foreign corporation has employees or agents in Japan, it cannot simply be determined that "they are not a PE because they are expatriates." It is important to consider what authority they have in Japan and what activities they are continuously engaged in.
Additionally, when a tax treaty applies, it is necessary to confirm not only domestic law but also the definition of PE under the relevant tax treaty. There are cases where the scope of taxation is limited by tax treaties compared to domestic law.
Therefore, when a foreign corporation enters Japan, it is important to confirm not only the existence of company establishment but also whether a PE has been formed in Japan based on the actual business circumstances.
3. Corporate tax when there is a PE
For foreign corporations with a PE in Japan, in principle, the income attributable to that PE is subject to Japanese corporate tax.
What is important here is that the tax relationship between a Japanese corporation and a foreign corporation's branch in Japan is not necessarily the same.
In the case of foreign corporations, it is necessary to calculate the income attributable to the PE based on the functions performed by the PE in Japan, the assets used, and internal transactions with the foreign corporation's head office.
For example, if the overseas head office is engaged in product development and intellectual property management while the Japan branch is conducting sales activities, it is necessary to consider how much profit should be attributed to the Japan branch.
Additionally, it is necessary to appropriately organize the tax treatment of internal transactions related to funds, services, and intellectual property between the overseas head office and the Japan PE.
Therefore, when a foreign corporation conducts business through a Japan branch, it is important to consider income attribution based on the functions, risks, and assets of the PE, rather than calculating taxable income solely based on domestic sales.
4. Cases where foreign corporations without a PE are also subject to Japanese taxes
The understanding that "if there is no PE in Japan, Japanese corporate tax does not apply at all" is not accurate.
Even for foreign corporations without PE, there is a possibility of being taxed in Japan depending on the type of domestic source income.
For example, income related to real estate in Japan, rental income from real estate, certain interest, dividends, interest on loans, and royalties related to copyrights or patents for domestic business must have their tax relationships confirmed regardless of the presence of PE.
In particular, when a Japanese corporation pays royalties, interest, or dividends to an overseas parent company, there may be withholding tax obligations for the paying Japanese corporation.
Therefore, when a Japanese corporation begins transactions with a foreign corporation, it is important to confirm whether the payment content qualifies as domestic source income rather than simply judging that "withholding tax is unnecessary because it is an overseas remittance."
5. Withholding income tax related to payments to foreign corporations
In transactions with foreign corporations, it is important not only to consider the tax obligations of the receiving foreign corporation but also whether the Japanese payer has withholding tax obligations.
When paying domestic source income subject to withholding tax to a foreign corporation in Japan, the payer is generally obligated to withhold and remit income tax and special reconstruction income tax.
Typical subjects for consideration include certain interest, dividends, interest on loans, and royalties.
For example, if a Japanese corporation borrows from an overseas parent company and pays interest overseas, there may be a need for withholding tax on the interest. Additionally, if a Japanese corporation pays royalties for trademarks, patents, copyrights, etc., held by the overseas parent company, it is necessary to confirm whether withholding tax is required.
Furthermore, there may be cases where the withholding tax rate is reduced or exempted by tax treaties. Even in such cases, it is necessary to confirm the procedures required for applying the tax treaty, such as submitting certain notification forms by the deadline.
Therefore, when concluding contracts with foreign corporations, it is advisable to confirm not only the amount stated in the contract but also whether it is "before tax," "who bears the withholding tax," and "whether the tax treaty can be applied."
6. Consumption tax should be considered separately from corporate tax
In the Japanese tax affairs of foreign corporations, it is necessary to separate corporate tax and consumption tax.
Even for foreign corporations, sales of goods and provision of services conducted in Japan may be subject to consumption tax.
In particular, in cases where a foreign corporation sells goods to customers in Japan, the treatment of consumption tax varies depending on the location of the goods, whether they are imported, and the sales method.
The Tokyo Regional Taxation Bureau has reiterated that, as of February 2026, there may be cases where consumption tax is levied on domestic transactions, including internet sales directed at Japan, for goods sold by foreign corporations in Japan.
Additionally, even if a foreign corporation bears import consumption tax when importing goods into Japan, separate consumption tax declarations and payments may be required for transactions involving the sale of those goods in Japan.
Furthermore, in cross-border transactions providing services from overseas to Japan, it is necessary to consider whether the transaction is domestic, export exempt, foreign, or specific purchases based on the content of the service and the place of provision.
For foreign corporations, it is important not to simply judge that "there is no consumption tax because the billing address is overseas," but to confirm the tax relationships for each transaction.
7. The invoice system and foreign corporations
For foreign corporations conducting taxable transactions in Japan, responding to the qualified invoice preservation method, commonly known as the invoice system, is also important.
When a foreign corporation conducts the transfer of taxable assets in Japan, it is necessary to consider whether that corporation needs to register as a qualified invoice issuer in conjunction with its consumption tax obligations.
On the other hand, when a Japanese corporation receives services from a foreign corporation overseas, it is necessary to confirm whether it falls under domestic transactions or specific purchases.
In particular, for services provided across borders such as digital services, advertising, software, licenses, and consulting, the treatment of consumption tax varies depending on the content of the transaction.
Therefore, it is advisable to confirm not only corporate tax and withholding income tax but also consumption tax and the invoice system in contracts with foreign corporations.
8. Confirmation of Taxation Relationships under Tax Treaties
In the Japanese taxation of foreign corporations, there may be cases where conclusions cannot be drawn solely based on domestic law.
If a tax treaty is concluded between Japan and the country where the foreign corporation is located, that tax treaty may limit Japan's taxing rights and withholding tax rates.
For example, when a foreign corporation receives interest or royalties from a Japanese corporation, the withholding tax rate under Japanese domestic law may differ from the maximum tax rate under the tax treaty.
Additionally, for business income, the existence of a PE under the tax treaty is an important point in determining Japan's taxing rights.
Therefore, in international transactions with foreign corporations, it is necessary to confirm not only whether it is taxable under domestic law but also whether Japan has taxing rights under the tax treaty and whether a reduction or exemption of the withholding tax rate can be obtained.
Since the application of tax treaties may have procedural requirements such as the submission of certain notification forms, it is important to confirm this before actual payments.
9. Cases Requiring a Tax Agent
If a foreign corporation without a head office or office in Japan needs to file a declaration or notification in Japan, it may be necessary to appoint a tax agent.
A tax agent performs certain administrative tasks related to national taxes, such as submitting tax returns, receiving documents from the tax office, paying taxes, and receiving refunds.
In particular, when a foreign corporation without a base in Japan files and pays consumption tax in Japan, it is necessary to confirm the appointment and notification of a tax agent.
When a foreign corporation starts business in Japan, it is important to prepare not only for tax registration and filing obligations but also for the practical system of "who will handle the tax procedures in Japan" in advance.
10. Tax Points Foreign Corporations Should Confirm Before Entering Japan
When a foreign corporation starts business in Japan, it is first necessary to organize what activities will be conducted in Japan.
Specifically, it should be confirmed whether to establish a Japanese corporation, set up a branch, sell in Japan while remaining a foreign corporation, send employees to Japan, or use agents or sales companies.
Based on that, it is advisable to sequentially consider the possibility of a PE arising in Japan, the existence of domestic source income, filing obligations for corporate tax, local corporate tax, and local taxes, consumption tax obligations, withholding tax on payments to foreign corporations, the applicability of tax treaties, and the necessity of a tax agent.
In particular, if there are payments such as royalties, management fees, outsourcing fees, and interest between the overseas headquarters and the Japanese corporation, it is necessary to organize the contract details and actual transaction content in a tax-consistent manner.
Tax issues should not be confirmed only after the company is established or during a tax audit, but should be considered from the business planning stage of entering Japan as part of risk management.
In conclusion
The Japanese taxation of foreign corporations cannot be judged solely by whether a "Japanese corporation has been established."
It is necessary to examine multiple systems, including the existence of a PE, types of domestic source income, attribution of income to a PE, withholding tax on payments to foreign corporations, consumption tax, the invoice system, tax treaties, and tax agents.
In particular, for international transactions such as interest, royalties, and service fees conducted between overseas headquarters and Japanese bases, it is important to conduct a comprehensive review that includes not only corporate tax but also withholding income tax and tax treaties.
Since the tax conclusions can vary significantly depending on the form of entry into Japan and the content of transactions, it is advisable to organize the transaction scheme and establish the necessary notification, declaration, and tax payment systems before starting the business.
Regarding the Japanese taxation of foreign corporations, it is essential to make judgments based not only on domestic law but also on tax treaties and the actual business situation, which leads to appropriate tax compliance and a reduction in future tax risks.
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