What a Representative Office Is (and Is Not) Under Japanese Law
No Separate Legal Entity
A chuzaiin jimusho (駐在員事務所) is not a legal entity under kaisha-ho, Companies Act (会社法). It does not have a teikan, Articles of Incorporation (定款), a board of directors, or share capital. It is not incorporated. There is no registration step with the homuskyoku, Legal Affairs Bureau (法務局) required to establish one, because the representative office is simply the parent company conducting limited, non-commercial activities in Japan through a physical presence.
In legal terms, the representative office is part of the parent. The parent company's own legal existence extends into Japan through the office, but without the contracting power, revenue-generating capacity, or statutory obligations that come with a registered entity.
This is the structural advantage and the structural trap of the model. There is no registration burden to establish a representative office. There is also no registered legal status in Japan that would allow it to contract, invoice, or employ.
The Trigger for 外国会社登記
The absence of a registration requirement changes the moment the representative office begins conducting transactions in Japan. Under 会社法, a foreign company that carries out transactions in Japan on a continuing basis (継続して取引をしようとする外国会社) is required to register as a gaikoku kaisha (外国会社) before commencing those transactions. This registration, known as gaikoku kaisha toki (外国会社登記), is filed at the Legal Affairs Bureau and creates a formal branch presence that can contract and generate revenue.
The distinction is critical: a 駐在員事務所 conducting only the permitted non-commercial activities described below has no registration obligation. The moment the office begins signing commercial contracts, invoicing clients, or generating Japan-source revenue, the legal basis for the representative office disappears and 外国会社登記 becomes mandatory.
What a Representative Office Can Do
The permitted scope of a 駐在員事務所 is defined by what does not cross the threshold into commercial transactions. Broadly, this covers:
(a) Market research. Gathering data on Japanese consumer preferences, competitive landscape, regulatory requirements, pricing, and distribution structures. This is the core purpose most companies use a representative office for, and it is unambiguously within scope.
(b) Liaison and relationship-building. Meeting with potential partners, distributors, customers, and government bodies. Attending industry conferences and trade fairs. Providing introductions between the Japan office and the parent. A representative office is a relationship infrastructure tool, not a revenue infrastructure tool.
(c) Purchasing support for the parent. Identifying and evaluating suppliers in Japan for export to the parent's home market. Conducting quality checks on goods before shipment. Coordinating logistics details on behalf of the parent for goods the parent is importing from Japan. Note that the contracts for these purchases must be executed by the parent company, not the representative office.
(d) Trade show attendance. Displaying products, collecting inquiries, and building brand awareness. The representative office cannot conclude sales at a trade show, but it can generate leads that the parent then follows up and contracts directly.
(e) Administrative support for parent operations. Back-office coordination, scheduling, translation support, and similar functions that serve the parent rather than Japan-based customers.
What a Representative Office Cannot Do
Understanding the hard limits is more important than understanding the permitted scope, because violations are easy to fall into without realizing it.
Sign Commercial Contracts
A 駐在員事務所 cannot sign commercial contracts on behalf of the parent in a way that constitutes ongoing transactional activity in Japan. If a staff member based in the representative office signs a supply agreement, service agreement, or any contract that creates a commercial obligation, the office has effectively crossed into the 外国会社登記 territory. The parent can execute contracts directly from its home jurisdiction with Japanese counterparties, but the office itself cannot be the contracting party or the locus of continuous commercial transaction.
Invoice Clients or Generate Japan-Source Revenue
The representative office cannot issue invoices to Japanese customers, receive payment for goods or services rendered in Japan, or generate Japan-source revenue. Once the office begins doing this, it has a permanent establishment (PE) in Japan for tax purposes, which triggers Japanese corporate tax obligations even in the absence of formal 外国会社登記.
This is a risk that catches companies off guard. A representative office can morph into a de facto PE without any formal registration change. The National Tax Agency, NTA (国税庁) will assess PE status based on economic substance, not on the office's self-description. A representative office whose staff are actively selling, closing deals, or managing customer accounts is a PE regardless of what it calls itself.
Employ Staff on a Japanese Payroll Directly
A 駐在員事務所, not being a legal entity, cannot itself be an employer under Japanese labor law. It cannot sign employment contracts with Japan-based employees, run a Japanese payroll, or enroll employees in Japan's social insurance system (kenko hoken (健康保険) and kosei nenkin, employees' pension (厚生年金)).
Foreign companies that need Japan-based staff working through a representative office have two structurally sound options. The first is to second an employee from the parent company into Japan on a business visa, where the employment contract and payroll remain with the parent entity. The second is to use an employer of record (EOR) arrangement, where a Japan-based entity becomes the legal employer of the Japan-based staff member, handling payroll, social insurance, and labor law compliance on behalf of the foreign company. The EOR route is particularly practical for companies that want permanent Japan-based staff without an incorporated entity.
Open a Bank Account in the Representative Office's Name
A 駐在員事務所 cannot open a Japanese corporate bank account in its own name. It is not a legal entity, and Japanese banks require a registered legal entity as the account holder. The parent company can open a Japan bank account in the parent's name (a non-resident corporate account), but this is operationally limited and not available at all Japanese banks. The practical alternative for companies needing Japan-based banking capacity is either the 外国会社登記 route (which allows a branch bank account in the parent's name) or full incorporation of a KK or GK.
The 外国会社登記 Route: A Middle Step Worth Knowing
When a foreign company wants more than market research but is not ready to incorporate a separate entity, 外国会社登記 under 会社法 provides a middle path. A registered foreign company (外国会社) can conduct commercial transactions, sign contracts, and generate Japan-source revenue. Its legal presence in Japan is the parent company itself, operating through a registered Japan branch.
This approach is worth considering when:
(a) The company wants to contract directly with Japanese customers or suppliers without routing everything through the parent's home jurisdiction, but does not want the administrative overhead of a full KK or GK subsidiary.
(b) Parent company liability exposure is acceptable. A registered foreign company branch does not limit parent liability the way a separate subsidiary does. If the Japan branch incurs debts or regulatory obligations, the parent is fully on the hook.
(c) Tax transparency is acceptable or preferred. Profits attributable to the Japan branch are taxed in Japan at the branch level, with a branch profits tax potentially applying on repatriation. There is no dividend withholding tax since branch profits are not dividends. Depending on the parent's home jurisdiction and the applicable double tax agreement, this may be structurally advantageous or disadvantageous compared to operating through a subsidiary.
(d) Banking in the parent's name at a Japan bank is operationally workable.
The 外国会社登記 route is not suitable if the company wants legal separation between the Japan operation and the parent, needs its own Japanese corporate identity for licensing or regulatory purposes, or wants to access banking relationships that require a Japan-incorporated entity.
Practical Considerations for the Representative Office Model
Registered Address
Although a 駐在員事務所 does not require Legal Affairs Bureau registration, it needs a physical address in Japan for correspondence, visa applications, and practical office operations. The address cannot simply be a postal drop in most contexts: staff will need a location to work from, and visa applications for the representative's zairyu shikaku (在留資格) require a credible physical address.
A serviced office or shared workspace address is workable for a representative office, provided the arrangement supports actual use of the space. This is different from the more stringent requirements banks and immigration authorities impose on KK/GK incorporation scenarios.
Staff and Visa Structure
A foreign company sending staff to work in Japan through a representative office typically does so in one of two ways.
The first is a secondment from the parent company. The staff member holds an employment contract with the parent, is paid by the parent, and enters Japan on a kigyonai tenkin, Intra-Company Transferee (企業内転勤) visa. This is the most common structure for representative office staff. The parent must demonstrate a genuine employment relationship and the Japan assignment must be a transfer rather than a new local hire.
The second is the EOR model. Where the company wants to hire a Japan-local professional who does not have an existing employment relationship with the parent, an EOR arrangement allows the hire to proceed under a compliant Japan employment contract without the foreign company needing a Japan entity. The EOR handles all payroll, social insurance, and labor compliance obligations.
Neither route allows the staff member to engage in commercial transactions on behalf of the representative office within the permitted scope constraints described above.
Permanent Establishment Risk
This is the most important tax risk associated with an active representative office. Under hojin zeizei-ho, Corporate Tax Act (法人税法) and the applicable bilateral tax treaty, a foreign company has a PE in Japan if:
(a) It maintains a fixed place of business through which its business is wholly or partly carried on (fixed place PE); or
(b) A person habitually concludes contracts in Japan on behalf of the company, or habitually plays the principal role leading to the conclusion of contracts (dependent agent PE).
A 駐在員事務所 conducting only market research and liaison activities is typically protected from PE status under the preparatory and auxiliary activities exemption found in most tax treaties Japan has concluded. Japan's tax treaties generally follow the OECD Model Convention, which excludes from PE status activities that are preparatory or auxiliary in character, including the maintenance of a fixed place of business solely for the purpose of collecting information or carrying out any other activity of a preparatory or auxiliary character.
However, this exemption is narrow. If representative office staff are conducting sales presentations, negotiating contract terms, or managing customer accounts, the preparatory and auxiliary exemption does not apply. The NTA's position on PE has become more assertive in recent years, and OECD BEPS Action 7 measures (which Japan has adopted) tightened the dependent agent PE definition. Companies with active representative offices should obtain a specific PE analysis before assuming the exemption applies to their activities.
When to Graduate to Full Incorporation
The representative office model is a starting point, not a permanent structure. The following situations are clear signals that the model has run its course and full incorporation is the right next step.
Signing authority is needed. If the Japan operation needs to sign local contracts, whether with suppliers, customers, distributors, or landlords, the representative office cannot provide that authority without converting to a registered presence.
Revenue is being generated in Japan. Any Japan-source revenue flowing through or attributable to the representative office creates PE exposure and potentially triggers 外国会社登記 obligations.
Local hiring at scale is needed. Seconding one or two employees from the parent is manageable. Hiring multiple Japan-local professionals through an EOR for an extended period is operationally functional but becomes administratively complex and more expensive than operating with a Japan entity.
Banking is needed in Japan. Meaningful Japan operations generally require a Japan bank account. A representative office cannot hold one. If the business needs to pay local suppliers, receive local payments, or manage Japan-denominated cash flow, the absence of a Japan bank account becomes a practical ceiling.
Regulatory licenses require an incorporated entity. Certain regulated activities in Japan, including customs brokerage, financial services, and various manufacturing licenses, require the license holder to be a Japan-registered entity. A representative office or unregistered foreign company presence is not eligible.
Brand credibility requires a Japan entity. Japanese counterparties, especially in manufacturing, financial services, and distribution, routinely check the 法務局 registry before entering commercial relationships. The absence of a Japan-registered entity can disadvantage the foreign company in negotiations or exclude it from consideration entirely.
How Aplash Can Help
Company Setup (KK or GK Incorporation)
When the representative office model has served its purpose and the company is ready to incorporate in Japan, Aplash manages the incorporation process from 定款 drafting through Legal Affairs Bureau registration and post-incorporation compliance setup. Both KK and GK structures are available, with entity selection based on the company's banking needs, regulatory requirements, and long-term ownership structure.
EOR for Japan-Based Staff Without an Entity
For companies maintaining a representative office that need Japan-local staff without incorporation, Aplash's employer of record service provides a compliant employment structure: the staff member is employed by Aplash's Japan entity, with payroll, social insurance, and labor law compliance handled by Aplash. The foreign company retains day-to-day operational direction of the staff member within the constraints of the EOR arrangement.
IOR for Importing Without a Japan Entity
Foreign companies using their representative office to support purchasing and sourcing activities often need a way to import goods into Japan without a Japan-registered entity. Aplash's Importer of Record (IOR) service covers this: Aplash is the legal importer named on the Japan customs declaration, purchases goods from the overseas seller, and re-sells to the Japan buyer. This allows the parent company to move goods into Japan without an incorporated entity or 外国会社登記.
Conclusion
The 駐在員事務所 is a legitimate and useful market entry structure for the right stage of Japan engagement. It is appropriate for intelligence-gathering, relationship-building, and early-stage commercial exploration. It is not a long-term operating structure, and its boundaries are legally meaningful. A representative office that signs contracts, generates revenue, or employs local staff without the right supporting structures has stepped outside its permitted scope, often without realizing it.
The decision between maintaining a representative office, registering as a 外国会社, or incorporating a KK or GK is not purely structural. It turns on the company's commercial activity in Japan, its tax position, its banking needs, and how Japanese counterparties will respond to each option. Getting the structure right at the start avoids a costly and disruptive restructuring later.
This article is informational only and does not constitute legal, tax, or regulatory advice. Consult a qualified advisor before acting on the content. Aplash is a regulatory strategy and market entry firm, not a legal or accounting practice. Last updated: May 2026.