Kabushiki Kaisha (KK) Japan 2026: A Complete Employer Guide

A Kabushiki Kaisha (株式会社, abbreviated KK or K.K.) is the Japanese joint-stock company and the most common and prestigious of the four corporate forms available under the Japanese Companies Act (会社法, Kaishahō). It is the default corporate vehicle for foreign companies that need a registered Japanese entity with full legal personality, the ability to issue shares, and recognition by Japanese counterparties (banks, customers, government bodies, landlords). The minimum capital requirement is JPY 1 (technically; in practice JPY 1 million is the common threshold used to avoid signalling problems), the minimum director count is one, and director residency requirements were liberalised in 2015 so no Japanese resident director is legally required.

Setting up a Kabushiki Kaisha typically takes 4 to 8 weeks from kickoff to final registration with the Legal Affairs Bureau (法務局, Hōmukyoku), and costs JPY 400,000 to JPY 1,000,000 once registration tax, notarisation of the articles of incorporation, sworn translations, and legal fees are counted. The Japan External Trade Organization (JETRO) provides the standard reference for foreign companies running the setup. Annual maintenance includes corporate tax filings, statutory shareholders’ meetings, mandatory bookkeeping in Japanese, and ongoing director and shareholder register maintenance.

For foreign companies hiring in Japan, the threshold question is whether a Kabushiki Kaisha is actually the right vehicle. Three alternatives compete for the same use case: the simpler Godo Kaisha (合同会社, GK), a Japanese equivalent of the US LLC with lower setup cost and lighter governance; an Employer of Record (EOR) in Japan, which lets a foreign company hire Japanese employees without setting up any local entity; and a branch office of the foreign parent, which carries permanent establishment risk but no separate corporate setup. The right choice depends on headcount, tax structure, and counterparty profile. This guide covers what a Kabushiki Kaisha is, how it compares to a Godo Kaisha, the full setup process and cost, the annual compliance burden, and when a foreign employer should default to one of the alternatives.

A Kabushiki Kaisha is a joint-stock company under Japanese law, structurally similar to a Delaware C-corporation, an English plc/limited company, or a German AG/GmbH. The literal translation of kabushiki kaisha is “share-type company” (kabushiki = shares; kaisha = company). The company is owned by shareholders who hold transferable shares, managed by directors, and operates as a legal person distinct from its owners. Liability for shareholders is limited to the value of their shares.

The Kabushiki Kaisha sits at the top of the corporate-form hierarchy in Japan. The four corporate forms recognised under the Companies Act are: Kabushiki Kaisha (KK, joint-stock company, the dominant form), Godo Kaisha (合同会社, GK, Japanese LLC, increasingly common for foreign subsidiaries since 2006), Gomei Kaisha (合名会社, general partnership with unlimited liability, rare in commercial use), and Goshi Kaisha (合資会社, limited partnership with mixed liability, also rare). For foreign companies, the realistic choice is between Kabushiki Kaisha and Godo Kaisha. The partnership forms are not commercially relevant for foreign investment.

The Kabushiki Kaisha framework was significantly reformed in 2006 with the introduction of the unified Companies Act, which replaced the older Commercial Code provisions and reduced the historical minimum capital requirement from JPY 10 million to JPY 1. The 2006 reform also formally introduced the Godo Kaisha and significantly simplified governance options for smaller KKs.

The single most important strategic question for a foreign company approaching Japanese entity setup is Kabushiki Kaisha vs Godo Kaisha (KK vs GK). The two forms differ on five operational dimensions: prestige and counterparty recognition, setup cost, governance complexity, tax treatment for foreign parents, and exit flexibility. There is no universally right answer; the choice depends on headcount plans, US versus non-US parent tax structure, and what Japanese counterparties the entity will deal with. Review our Godo Kaisha Guide to learn more.

The Kabushiki Kaisha capital and shareholder framework is unusually flexible by international standards. Three rules cover most practical questions.

Minimum capital is JPY 1. The 2006 Companies Act reform abolished the previous JPY 10 million minimum capital requirement. A Kabushiki Kaisha can technically be incorporated with capital of one yen. In practice, foreign companies typically use JPY 1 million or higher because lower capital signals weakness to Japanese banks, customers, and visa authorities. For companies sponsoring foreign directors’ Business Manager visas, the practical capital floor is JPY 5 million, since that is the standard threshold expected for the visa.

One shareholder minimum. A Kabushiki Kaisha can have a single shareholder, who may be a foreign individual or a foreign corporation. There is no Japanese residency requirement for shareholders. The shareholder register is filed with the Legal Affairs Bureau and is publicly accessible.

Share types and structure. A Kabushiki Kaisha can issue ordinary shares, preferred shares, redeemable shares, and several other classes. Default structure is a single class of ordinary shares with equal voting and economic rights. More complex structures are useful for venture financings or strategic partnerships but rarely needed for a wholly-owned foreign subsidiary at setup.

The Kabushiki Kaisha governance framework was substantially simplified by the 2006 Companies Act and further liberalised in 2015 with the removal of the Japanese resident director requirement. Four governance rules matter most for foreign-owned KKs.

Minimum one director. A small Kabushiki Kaisha needs only one director (取締役, torishimariyaku). Larger KKs can choose to establish a board of directors (取締役会, torishimariyakukai) requiring at least three directors, with a chairman and accompanying statutory auditor. Most wholly-owned foreign subsidiaries use the simpler one-director structure.

No Japan residency requirement for directors. Before 2015, a Kabushiki Kaisha was required to have at least one director resident in Japan. That requirement was abolished in March 2015. A Kabushiki Kaisha can now be operated with all directors resident outside Japan. In practice, a Japan-resident representative is still useful for banking, lease signing, and government interactions, but it is no longer legally required.

Director terms. Directors are appointed for terms of up to 2 years (10 years for a non-public KK with share transfer restrictions). Terms renew at the annual shareholders’ meeting.

Statutory shareholders’ meeting. A Kabushiki Kaisha must hold an annual general meeting of shareholders within 3 months of each fiscal year-end. The meeting approves the annual financial statements and re-appoints directors at term expiry. For a single-shareholder KK, the meeting can be held by written resolution.

Registering a Kabushiki Kaisha follows a defined sequence. Total elapsed time is typically 4 to 8 weeks from kickoff to final Legal Affairs Bureau registration, depending on how quickly the foreign parent can produce apostilled corporate documents and how busy the registration office is. The seven steps:

The direct government fees for a Kabushiki Kaisha are modest. The full cost picture is materially higher once notarisation, apostille, translation, and legal fees are counted. Most foreign companies using a Japanese law firm for KK setup budget JPY 600,000 to JPY 1,200,000 all-in.

A Kabushiki Kaisha carries a meaningful annual compliance and maintenance burden once operational. Five recurring obligations cover the bulk of what foreign-owned KKs deal with each year.

1. Corporate tax filings. A Kabushiki Kaisha files national corporate tax, local corporate inhabitant tax, and enterprise tax on a fiscal-year basis. Fiscal year-end is freely chosen at incorporation; the most common is 31 March or 31 December. Filings due within 2 months of year-end. Combined effective corporate tax rate runs approximately 30 to 34 percent depending on capital level and location.

2. Annual shareholders’ meeting. Mandatory within 3 months of fiscal year-end. Approves the financial statements, re-appoints directors at term expiry, declares dividends. For a single-shareholder KK, this can be done by written resolution but the formal record is still required.

3. Director term renewals. Director terms run up to 2 years (10 years for a non-public KK with share transfer restrictions). At each expiry the shareholders must re-appoint directors and file an update with the Legal Affairs Bureau. Missed renewals trigger administrative penalties.

4. Statutory bookkeeping and audit. KKs must maintain Japanese-language accounting records. Small KKs are not subject to statutory audit. Larger KKs (paid-in capital JPY 500 million+ or total liabilities JPY 20 billion+) require an independent CPA audit.

5. Social security and labour insurance. Once the KK hires its first Japanese employee, it must register with the Japan Pension Service (社会保険, shakai hoken) and Labour Standards Inspection Office (労働基準監督署, rōdō kijun kantokusho). Monthly contributions to health insurance, pension, employment insurance, and workers’ accident compensation begin from the first hire.

Total annual maintenance cost for a small Kabushiki Kaisha (1-5 employees, no statutory audit) typically runs JPY 1.5 million to JPY 4 million across tax filings, accounting, payroll, and statutory compliance. Larger KKs scale proportionately.

For foreign companies hiring in Japan, the Kabushiki Kaisha is not always the right answer. Three scenarios point to a different approach.

1. You are hiring fewer than 5 people and have no public-facing Japanese brand presence. Setting up a KK costs JPY 400,000 to JPY 1,000,000, takes 4 to 8 weeks, and adds JPY 1.5 to 4 million per year in ongoing maintenance before the first salary is paid. For a sales or engineering team of 1 to 5 people with no need for Japanese banking, customer contracting, or government licensing, an Employer of Record handles the same hiring outcome in 2 to 3 weeks with no setup cost and a monthly per-employee fee that totals less than KK maintenance.

2. Your parent is US-domiciled and tax treatment matters more than prestige. The Godo Kaisha (GK) is materially cheaper to set up (JPY 60,000 registration tax versus JPY 150,000, no notarisation required) and supports US check-the-box tax treatment that the Kabushiki Kaisha cannot. If your Japanese subsidiary is internal-facing (engineering, support, back-office) rather than dealing with traditional Japanese banks and customers, the GK is almost always the right choice for a US parent.

3. You are testing market fit before committing. Setting up a KK signals long-term commitment, which is what Japanese counterparties expect. But for a company still validating whether Japan is the right market, an EOR lets you hire 1 to 3 Japanese employees, run a 6 to 12 month market test, and convert to a KK or GK once the commercial case is proven. The reverse path (set up the KK, discover the market is wrong, dissolve the KK) costs significantly more and takes significantly longer.

For the broader cost picture on hiring through an Employer of Record in Japan rather than setting up a Kabushiki Kaisha, our EOR cost guide walks through total employer cost across markets. If you are weighing Japan against other APAC destinations, the best countries to hire developers guide puts Japan in context against 12 other markets.

For the broader contractor-versus-employee tradeoff that often comes up when foreign companies are setting up Japan operations, our contractor vs EOR employee comparison covers the operational ground. The permanent establishment risk that often pushes foreign companies toward formal entity setup is covered in our permanent establishment glossary entry.