A Japan branch office and a KK or GK subsidiary are not the same legal person: a branch is the foreign parent itself operating in Japan under Companies Act (会社法) Articles 817 to 823, with the parent carrying unlimited liability, while a subsidiary is a separate Japanese legal entity with liability ring-fenced to its own capital. The branch skips corporate income tax on repatriated profit; the subsidiary pays dividend withholding tax instead.
Last Updated: August 2026 · Reading Time: ~13 min
Why Structure Choice Matters#
Most foreign companies entering Japan default to "let's set up a subsidiary" without asking whether a branch might serve them better, or whether a representative office is enough for now. Getting this wrong means restructuring later, often at a cost of ¥500,000 to ¥2 million in legal and registration fees, plus months of operational disruption.
The Three Options at a Glance#
| Representative Office | Branch Office | Subsidiary (KK or GK) | |
|---|---|---|---|
| Japanese name | 駐在員事務所 | 支店 (外国会社登記) | 株式会社 / 合同会社 |
| Separate legal entity? | No | No (extension of parent) | Yes |
| Can conduct business? | No | Yes | Yes |
| Parent liability for debts | Parent | Parent (unlimited) | Limited to capital |
| Japan corporate tax base | None | Japan-source income | All Japan income |
| Dividend WHT on profit repatriation | N/A | None (not a dividend) | 5–20% (DTA-dependent) |
| Can hire employees? | No (technically) | Yes | Yes |
| Corporate bank account | No | In parent's name (Japan branch) | In subsidiary's own name |
| Registration required | No | Yes (Legal Affairs Bureau) | Yes (Legal Affairs Bureau) |
| Government registration fee | None | ~¥90,000 | GK: ¥60,000 min · KK: ¥150,000 min (or 0.7% of capital) |
| Setup timeline | Days | 2–4 weeks | 1–6 weeks |
| Japan-resident rep required? | No | Yes (日本における代表者) | Strongly recommended |
Option 1: Representative Office (駐在員事務所)#
What It Is
A representative office is not a legal entity and is not a registered company structure under Japanese law. It is an overseas company designating staff to work in Japan for a limited, non-commercial purpose.
What It Can Do
- Conduct market research and competitive analysis
- Gather business intelligence and build relationships
- Liaise with Japanese counterparties on behalf of the overseas parent
- Support the parent company's Japan strategy and market evaluation
What It Cannot Do
- Conduct any commercial transaction: buying, selling, contracting for revenue
- Issue invoices or receive payment for services
- Execute contracts that bind the company commercially
- Open a corporate bank account in Japan
Registration
No registration with Japanese authorities is required for a representative office. However, staff working in Japan require appropriate visas. Employees are technically on the overseas parent's payroll.
The moment a representative office conducts any form of commercial activity, including accepting payment, executing contracts, or providing services for consideration, a permanent establishment (PE) is created under Japanese tax law. This PE exists regardless of how the office is labeled. The NTA can assess back taxes from the date the PE was effectively created, not from the date of formal registration.
When to Use
A representative office is appropriate only for a genuine pre-commercial phase, typically 3 to 6 months of market research before committing to a formal presence. If you plan to conduct business in Japan, register properly from the start.
Option 2: Branch Office (外国会社の支店)#
What It Is
A branch office is an extension of the parent foreign company in Japan. It is not a separate legal entity: the parent company and the branch are the same legal person for all practical and legal purposes.
Legal Basis
Foreign companies wishing to conduct business in Japan must register with the Legal Affairs Bureau (法務局) under the Companies Act (会社法) Articles 817 to 823. This registration makes the branch a formal presence in Japan, but the parent company remains the legal entity and bears full liability for all branch debts and obligations.
Registration Requirements
| Requirement | Detail |
|---|---|
| Japanese representative (日本における代表者) | At least one representative with an address in Japan. Required under Companies Act Article 817. |
| Japan branch address | A physical address in Japan for the branch. |
| Apostilled constitutional documents | Parent company articles of association (or equivalent), apostilled and translated to Japanese. |
| Parent director details | Identity documents of the foreign company's directors. |
| Registration application | Filed with the competent Legal Affairs Bureau for the branch location. |
The government registration fee is ¥90,000 (first registration as a foreign company in Japan).
The registration must be filed within three weeks of the date the branch office is established (Companies Act Article 933). This is a statutory deadline, and it runs from the establishment date itself whether or not the documents are ready.
The setup timeline is 2 to 4 weeks after all documents are in order.
Registration also brings an ongoing publication duty: a registered foreign company whose closest Japanese equivalent is a 株式会社 must publish its balance sheet in Japan (Companies Act Article 819). This pulls the parent's own accounts into a Japanese public-disclosure obligation, something a GK subsidiary never faces (a GK carries no equivalent 決算公告 duty at all) and something a KK subsidiary only faces for its own, separate accounts rather than the parent's.
Tax Treatment
A branch constitutes a permanent establishment (PE) in Japan. The NTA taxes the branch on Japan-source income only, not on the parent company's worldwide income.
The tax calculation: revenue attributable to the Japan branch, less expenses attributable to the branch, taxed at standard Japan corporate tax rates. The effective combined rate (national + local) is approximately 30% to 34%, depending on company size and prefecture.
The key tax advantage over a subsidiary is that profit repatriation from a branch to its parent carries no withholding tax. When the branch transfers profits to the parent, this is treated as a movement of funds within the same legal entity, so no dividend arises. Under a subsidiary structure, dividends paid to the overseas parent are subject to Japanese withholding tax.
| Branch | Subsidiary | |
|---|---|---|
| Profit repatriation mechanism | Internal fund transfer | Dividend payment |
| Japanese withholding tax | None | 5–20% (DTA rate) |
| Example: ¥100M profit, 10% DTA rate | ¥0 WHT | ¥10M withheld |
For companies with high Japan profitability and a favorable home-country tax treaty with Japan, the branch structure can save ¥5M to ¥20M per year in withholding tax on repatriated profits.
Liability
The parent company bears unlimited liability for all branch debts. If the Japan branch cannot pay its creditors, those creditors can pursue the parent company's global assets. This is the primary reason most long-term Japan operations choose a subsidiary over a branch.
Employment
Branch employees are technically employed by the foreign parent company (through the Japan branch). Japan labor law applies in full to anyone working in Japan, regardless of the entity type registering the employment. This means:
- Standard Japan employment contracts are required
- Mandatory social insurance enrollment (health insurance and pension) applies
- Japan's strict employee protection rules apply (dismissal is very difficult)
- Payroll must comply with the Labor Standards Act (労働基準法)
Banking
A branch can open a corporate bank account in Japan, in the name of the parent company as the "Japan branch." The account opening process involves similar scrutiny as a subsidiary (see the Japan Corporate Bank Account Guide). A Japan-resident representative is essential.
Option 3: Subsidiary - KK or GK#
What It Is
A subsidiary is an independent Japanese legal entity, incorporated under the Companies Act. The parent company is a shareholder (KK) or member (GK) of the subsidiary, but the two are legally distinct persons.
For a detailed comparison of KK vs. GK, see KK vs. GK: Choosing the Right Corporate Structure. For the full incorporation process, see Japan Company Incorporation: 2026 Guide.
Key Distinction from Branch
| Branch | Subsidiary | |
|---|---|---|
| Separate legal person? | No | Yes |
| Parent liability for debts | Unlimited | Limited to capital invested |
| Tax base in Japan | Japan-source income | All Japan income |
| Profit repatriation WHT | None | 5–20% (DTA rate) |
| Balance sheet | Part of parent's consolidated accounts | Separate Japan entity |
| Banking | In parent's name (Japan branch) | In subsidiary's own name |
When a Subsidiary Is the Right Choice
- Japan operations are expected to be long-term (3 years or more)
- Ring-fenced liability is a priority for the parent company
- You plan to contract with Japanese enterprise clients (who strongly prefer 株式会社 counterparties)
- You are applying for a Business Manager visa (requires a Japanese entity as the employer)
- You need Japanese employees on a Japan-entity payroll
- You need to apply for Japanese regulatory licenses (some require a Japan-incorporated entity)
- You plan to raise equity investment or bring in Japanese joint venture partners
The Tax Comparison in Detail#
Corporate Income Tax Rate
Both branch and subsidiary pay the same statutory corporate tax rates on Japan-taxable income. The effective combined rate ranges from approximately 30% to 34%, depending on company size and prefecture.
Repatriation Tax: Where the Structures Diverge
| Branch | Subsidiary | |
|---|---|---|
| Profit transfer mechanism | Internal (same entity) | Dividend to parent |
| Japanese WHT at source | None | 5–20% (depends on DTA) |
| Home-country treatment | Foreign branch income | Dividend (participation exemption may apply) |
| Tax compliance complexity | PE attribution calculation required | Transfer pricing rules apply to intercompany pricing |
Consider a company that earns ¥200M net profit in Japan and repatriates 100%.
- Branch: ¥0 WHT. The full ¥200M is transferred to the parent (net of Japan corporate tax already paid).
- Subsidiary with 10% DTA WHT rate: ¥20M withheld before payment to parent. The parent may recover this via foreign tax credit in its home jurisdiction, but the cash timing differs and the administrative burden is real.
Transfer Pricing and PE Attribution
Each structure carries its own compliance obligations:
- For a subsidiary, all transactions between the Japan subsidiary and its overseas parent are subject to Japan's transfer pricing rules (租税特別措置法 Article 66-4). Arm's-length pricing must be documented.
- For a branch, profit attribution to the Japan PE must follow the Authorized OECD Approach (AOA). Japan adopted AOA methodology, which requires careful attribution of assets, risks, and functions to the branch.
PE attribution for a branch can be more complex to calculate than subsidiary transfer pricing. However, Japanese tax practitioners generally have better established practices for subsidiary intercompany pricing.
Employment Comparison#
| Factor | Branch | Subsidiary |
|---|---|---|
| Employment contract party | Foreign parent (Japan branch) | Japanese subsidiary |
| Japan labor law applies? | Yes, in full | Yes, in full |
| Social insurance enrollment | Yes | Yes |
| Visa sponsorship | Yes (through branch) | Yes |
| Payroll administration | In foreign company's name | In subsidiary's name |
| Dismissal protection for employees | Japan's strict rules apply | Japan's strict rules apply |
In practical terms, employment administration is similar under both structures. The main difference is the legal counterparty on employment contracts: the overseas parent (branch) versus the Japan entity (subsidiary).
Banking Access: Branch vs. Subsidiary#
Both structures can open corporate bank accounts in Japan. The key differences:
Branch accounts are in the parent company's name (as its Japan branch). Japanese banks must KYC the overseas parent entity, which creates additional scrutiny for parents incorporated in jurisdictions with limited Japanese banking relationships.
Subsidiary accounts are in the subsidiary's own name, as a Japan-incorporated entity with its own corporate registration number. This is generally a cleaner starting point for Japanese bank KYC processes.
Where the parent is headquartered in a major banking-relationship jurisdiction (US, EU, UK, Australia, Singapore, Korea), branch banking is feasible. Where it comes from a jurisdiction with less established Japan banking ties, a subsidiary provides a cleaner foundation.
In both cases, a Japan-resident individual who can conduct in-person bank interviews significantly improves approval odds. See the Japan Corporate Bank Account Guide for the full banking process, and the Articles of Incorporation drafting guide for how the branch's constitutional documents feed the registration filing described below.
Decision Framework#
Converting Branch to Subsidiary#
If you start with a branch and later decide a subsidiary is needed, conversion requires establishing a new Japanese entity. There is no direct statutory "conversion" mechanism:
| Step | Cost / Time |
|---|---|
| Incorporate new KK or GK | Government fees + professional fees (see the Japan Company Incorporation Guide) |
| Transfer contracts from branch to subsidiary | May require counterparty consent |
| Transfer employees | Requires individual employee agreement; potential labor law issues |
| Transfer assets | Tax event: gain/loss treatment must be modelled |
| Close branch registration (deregister) | Deregistration filing at Legal Affairs Bureau |
| Total typical cost | ¥500,000 to ¥2M+ in professional fees, plus internal overhead |
Branch-to-subsidiary conversion is possible but not free or fast. If there is a reasonable probability you will need subsidiary-level operations within 2 to 3 years, starting with a subsidiary is typically more cost-effective.
Common Mistakes to Avoid#
| Mistake | Consequence | Prevention |
|---|---|---|
| Operating commercially through a representative office | Undisclosed PE tax liability; NTA back-assessment | Register properly if conducting any commercial activity |
| Choosing a branch for long-term operations without modeling tax | May miss WHT savings if repatriation volume is high; or overpay if DTA rate is low and participation exemption applies | Model 3-year cash tax cost before deciding |
| Choosing a subsidiary without considering branch tax benefits | Missing potential ¥5M–¥15M/year WHT savings | Run the tax comparison against your DTA and home-country rules |
| Failing to appoint a Japan-resident representative for branch | Registration blocked; cannot open bank account | Appoint resident representative before filing |
| Forgetting FEFTA notification on subsidiary share acquisition | Regulatory violation; potential penalties | File within 15 days of non-resident share acquisition |
| Underestimating branch-to-subsidiary conversion cost | Materially affects Japan entry budget | Include conversion cost in scenario planning from the start |
Checklist: Choosing Your Japan Entry Structure#
- Define purpose: market research only (representative office) or commercial operations (branch or subsidiary)
- Confirm FEFTA notification requirement: non-resident acquiring shares in a Japan subsidiary must notify within 15 days; designated sectors require prior clearance
- Model tax impact: estimate Japan net income and repatriation volume over 3 years; compare WHT under branch vs. subsidiary
- Check DTA: confirm applicable WHT dividend rate under your home country's tax treaty with Japan
- Assess liability tolerance: does the parent need ring-fenced liability from Japan operations?
- Identify target clients: do Japanese enterprise clients expect a 株式会社 counterparty on contracts?
- Confirm visa needs: Business Manager visa requires a Japanese entity (subsidiary, not branch)
- Identify regulatory licenses required: some Japan licenses require a Japan-incorporated entity
- Appoint Japan-resident representative (required for branch; strongly recommended for subsidiary banking)
- Plan post-incorporation steps: QIS registration, social insurance, corporate tax registration
Working through this decision with regulatory counsel before filing catches the FEFTA notification timing, the bank-KYC fork, and the resident-representative requirement before they become a rejected filing. Aplash's company setup and market entry advisory scopes the branch-versus-subsidiary decision against your specific tax treaty, liability tolerance, and visa plan.
Frequently Asked Questions#
Can a branch office have a director who lives outside Japan?
The branch itself needs at least one Japan-resident representative (日本における代表者) under Companies Act Article 817; this is mandatory regardless of where the parent company's own directors reside. A KK or GK subsidiary, by contrast, has no statutory Japan-residency requirement for any director since the Ministry of Justice abolished that requirement in 2015, so a subsidiary can be run with no Japan-resident director at all, while a branch cannot.
Is a branch office cheaper to set up than a subsidiary?
A branch is not meaningfully cheaper to set up. Its government registration fee is a flat ¥90,000, while a GK subsidiary starts at a ¥60,000 minimum, so the branch is not the lower-cost filing either. The real cost difference between the two structures shows up after registration, in ongoing publication duties and profit-repatriation tax treatment.
What happens if a branch misses the three-week registration deadline?
Companies Act Article 933 sets the filing clock at three weeks from the date the branch office is established, whether or not the paperwork is ready by then, so operating past that window without a completed filing is itself a registration violation on top of any commercial risk from operating without proper registration. Foreign companies planning a branch should have the Japan-resident representative and apostilled parent documents ready before the establishment date.
Official References#
| Source | Link |
|---|---|
| Companies Act: Foreign Company Provisions (English) | japaneselawtranslation.go.jp |
| NTA: Corporation Tax for Foreign Companies | nta.go.jp |
| Ministry of Finance: FEFTA Inward Investment | mof.go.jp |
| JETRO: Setting Up Business in Japan | jetro.go.jp |
| Legal Affairs Bureau: Company Registration | moj.go.jp |
| OECD: Authorized Approach for PE Profit Attribution | oecd.org |
This article is informational only and does not constitute legal, tax, or regulatory advice. Consult a licensed judicial scrivener (司法書士), tax accountant (税理士), or attorney (弁護士) before acting on the content. Last updated: August 2026.