FOREIGN COMPANY SETUP IN JAPAN
There is no single notarization checklist that works for every foreign founder.
The right documents depend on who is investing, where the company is registered, where each person lives, and what role they will hold in the new Japanese company.
Confirm first. Notarize second.
A document can be properly notarized overseas and still be insufficient for a Japanese notary or Legal Affairs Bureau. Checking the Japanese requirements before signing can prevent delay and duplicate costs.
If the founder is an individual
A foreign individual may establish and own a company in Japan. When a Japanese seal certificate is unavailable, a signature certificate or notarized signature may be required to confirm that the signature on the incorporation documents is genuine.
Depending on the person’s nationality, residence and the purpose of the document, the certificate may be issued by a competent authority, embassy or consulate, or a notary public. The best option cannot be determined by nationality alone.
If the founder is a foreign company
A foreign company may also become a shareholder or member of a newly established Japanese company. In that case, the documents may need to confirm:
- the foreign company’s legal existence and registered office;
- the name and authority of its representative;
- the representative’s genuine signature;
- the company’s decision to invest in Japan; and
- the ultimate beneficial owner of the new Japanese company.
A company registry extract may be sufficient for some points. In other cases, an affidavit or an additional notarized statement may be needed because the registry does not show all the required information.
Can one notarized document cover everything?
Sometimes—but not always.
A carefully prepared affidavit may sometimes confirm the company details, the representative’s authority and the representative’s signature in one document. In other cases, separate documents must be issued in different countries or jurisdictions.
The key question is not whether a document has a notarial stamp. The key question is what the document actually proves—and whether the Japanese authority handling the incorporation can accept it.
A CROSS-BORDER EXAMPLE
Hong Kong company × U.S. citizen × resident in China
Consider a Hong Kong company investing in a new Japanese company. Its representative is a U.S. citizen living in China, and the same person will become the representative director of the Japanese company.
Before arranging notarization, we would need to identify:
- which document proves the Hong Kong company’s existence;
- how the representative’s authority is established;
- where the U.S. citizen’s signature should be certified;
- how the person’s residential address in China should be confirmed;
- whether the corporate and personal certifications can be combined; and
- whether an Apostille or another form of authentication is required.
This is why the country of nationality alone does not determine where the documents should be notarized.
The ultimate beneficial owner also matters
When the articles of incorporation of a Japanese stock company (Kabushiki Kaisha or K.K.) are notarized, information about the person who will ultimately control the company must be declared.
If the direct shareholder is a foreign company, it may be necessary to look beyond that company and review the ownership chain until the relevant individual is identified. The legal representative and the ultimate beneficial owner are not necessarily the same person.
Frequently asked questions
Can any overseas notarized document be used in Japan?
Not necessarily. The wording, issuing authority, form of certification and purpose of the document all matter.
Is an Apostille always required?
No. The answer depends on the country or jurisdiction, the type of document and the requirements of the Japanese receiving authority.
Does every foreign representative director need a signature certificate?
Not in every case. The answer depends on residence, access to a Japanese seal certificate, the documents being signed and the registration procedure.
Are the requirements the same for a K.K. and a G.K.?
No. The original articles of a K.K. generally require notarization in Japan, while the articles of a Godo Kaisha (G.K.) do not. Overseas supporting documents may still be required in either structure.
Plan the documents before visiting a notary
Before obtaining overseas certifications, it is helpful to confirm the Japanese company type, ownership structure, founders, directors, representative director, nationalities and countries of residence. The required documents can then be designed around their actual purpose.
CHINESE · ENGLISH · JAPANESE
Check the Japanese requirements before notarizing overseas
At Seiwa Legal Office, a licensed Judicial Scrivener and Administrative Scrivener works directly with foreign founders in English, Chinese and Japanese—from company formation and registration to immigration, licenses and FEFTA filings.
Contact Seiwa Legal OfficeThis article provides general information only. The required documents may differ depending on the company structure, jurisdiction, notarial practice and the Japanese authority handling the case.