# 会社法 / Companies Act — 第十二条 (Article 12)

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- Law: 会社法 (Companies Act), 平成十七年法律第八十六号
- English title "Companies Act": Ministry of Justice translation
- Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say.
- Provision: 第十二条 (Article 12)（支配人の競業の禁止） — address `art-12`
- Text in force since: 2026-08-12
- URL (the page that opens at this provision): https://japanlaw.org/en/companies-act/art-12
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/417AC0000000086/art-12
- Every provision below carries its address and both URLs on the line under it.
- Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below.

Only the Japanese as published by the government has legal effect; the text
below is a copy of it. Every English rendering below is a translation and
says which kind: the Ministry of Justice's translation, or this
site's machine translation, whose model and date the Sources list names.
They are never merged and never substituted for one another.

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### 第十二条（支配人の競業の禁止） — (Non-Competition by Manager)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-12 · https://japanlaw.org/en/companies-act/art-12 · https://japanlaw.org/l/417AC0000000086/art-12</sup>

    **第一項**  支配人は、会社の許可を受けなければ、次に掲げる行為をしてはならない。
    <sup>art-12/par-1 · https://japanlaw.org/en/companies-act/art-12/par-1 · https://japanlaw.org/l/417AC0000000086/art-12/par-1</sup>
    A manager may not commit any of the following acts without the permission of the company:
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **一**  自ら営業を行うこと。
      <sup>art-12/par-1/item-1 · https://japanlaw.org/en/companies-act/art-12/par-1/item-1 · https://japanlaw.org/l/417AC0000000086/art-12/par-1/item-1</sup>
      engage in the manager's own enterprise;
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **二**  自己又は第三者のために会社の事業の部類に属する取引をすること。
      <sup>art-12/par-1/item-2 · https://japanlaw.org/en/companies-act/art-12/par-1/item-2 · https://japanlaw.org/l/417AC0000000086/art-12/par-1/item-2</sup>
      carry out, for themselves or for a third party, any transaction which is in the line of business of the company;
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **三**  他の会社又は商人（会社を除く。第二十四条において同じ。）の使用人となること。
      <sup>art-12/par-1/item-3 · https://japanlaw.org/en/companies-act/art-12/par-1/item-3 · https://japanlaw.org/l/417AC0000000086/art-12/par-1/item-3</sup>
      become an employee of any other company or merchant (excluding any company; the same applies in Article 24);
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **四**  他の会社の取締役、執行役又は業務を執行する社員となること。
      <sup>art-12/par-1/item-4 · https://japanlaw.org/en/companies-act/art-12/par-1/item-4 · https://japanlaw.org/l/417AC0000000086/art-12/par-1/item-4</sup>
      become a director, executive officer or any member who executes the operation of any other company.
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第二項**  支配人が前項の規定に違反して同項第二号に掲げる行為をしたときは、当該行為によって支配人又は第三者が得た利益の額は、会社に生じた損害の額と推定する。
    <sup>art-12/par-2 · https://japanlaw.org/en/companies-act/art-12/par-2 · https://japanlaw.org/l/417AC0000000086/art-12/par-2</sup>
    If a manager commits any act set forth in item (ii) of the preceding paragraph in violation of the provisions of that paragraph, the amount of the profit obtained by the manager or any third party as a result of relevant act is presumed to be amount of the damage suffered by the company.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-12/par-1/item-3: 第二十四条 → 会社法 第二十四条 (Article 24), art-24 — https://japanlaw.org/en/companies-act/art-24 · https://japanlaw.org/l/417AC0000000086/art-24
- art-12/par-2: 前項 → 会社法 第十二条第一項 (Article 12, paragraph (1)), art-12/par-1 — https://japanlaw.org/en/companies-act/art-12/par-1 · https://japanlaw.org/l/417AC0000000086/art-12/par-1
- art-12/par-2: 同項第二号 → 会社法 第十二条第一項第二号 (Article 12, paragraph (1), item (ii)), art-12/par-1/item-2 — https://japanlaw.org/en/companies-act/art-12/par-1/item-2 · https://japanlaw.org/l/417AC0000000086/art-12/par-1/item-2

## Cited by

1 provision cites this one. No official source publishes this direction.

- 会社法 第十二条第二項（支配人の競業の禁止） — https://japanlaw.org/en/companies-act/art-12/par-2 · https://japanlaw.org/l/417AC0000000086/art-12/par-2

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 会社法 — the text in force from 2026-08-12 (https://laws.e-gov.go.jp/law/417AC0000000086/20260812_508AC0000000064), retrieved 2026-09-17
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Companies Act — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4481/tb), retrieved 2026-09-17
- This site's parser, version 223 — 会社法 — structure, counts, cross-references and defined terms, computed 2026-09-17