Telephone Number in Enterprise Registration: Mandatory Requirement and Invalid Dossier Risks

Must an enterprise provide its telephone number when registering its operations? When changing enterprise registration content without supplementing information about the enterprise’s telephone number, is the dossier valid?

1. Must an enterprise provide its telephone number when registering its operations?

The contents of the enterprise registration application are prescribed in Article 23 of the Law on Enterprises 2020, specifically as follows:

Contents of the enterprise registration application

The enterprise registration application includes the following main contents:

1. Enterprise name;

2. Address of the enterprise’s head office, telephone number; fax number, email (if any);

3. Business lines and trades;

4. Charter capital; investment capital of the private enterprise owner;

5. Share types, par value of each share type and total number of shares entitled to be offered of each share type for joint-stock companies;

6. Tax registration information;

7. Expected number of employees;

8. Full name, signature, contact address, nationality and legal document information of the individual for the private enterprise owner and general partners of a partnership company;

9. Full name, signature, contact address, nationality and legal document information of the individual for the legal representative of a limited liability company or joint-stock company.

Under this provision, the enterprise registration application must include the address of the enterprise’s head office, telephone number; fax number, email (if any).

Thus it can be understood that when registering enterprise operations, providing one’s telephone number is mandatory.

2. When changing enterprise registration content without supplementing information about the enterprise’s telephone number, is the dossier valid?

The updating and supplementing of information in enterprise registration dossiers is prescribed in Article 63 of Decree 168/2025/ND-CP, specifically as follows:

Updating and supplementing information in enterprise registration dossiers

1. When registering or notifying changes to enterprise registration content, the enterprise is responsible for supplementing the missing information about the enterprise’s telephone number in the dossier. Where the enterprise does not supplement information about the telephone number, the enterprise registration or change notification dossier is considered invalid.

2. The enterprise has the obligation to update and supplement information in the Enterprise Registration Certificate and enterprise registration dossier in accordance with Clause 3, Article 8 of the Law on Enterprises, as follows:

a) Where the enterprise updates or supplements information in the enterprise registration dossier that changes the content of the Enterprise Registration Certificate but does not fall under the cases of registering changes to enterprise registration content prescribed in Articles 47 to 55 of this Decree, the enterprise sends a notification requesting the update and supplementation of enterprise registration information to the provincial Business Registration Authority where the enterprise’s head office is located. The provincial Business Registration Authority receives the notification, examines its validity and issues the Enterprise Registration Certificate to the enterprise;

This provision states that when changing enterprise registration content, the enterprise is responsible for supplementing the missing information about the enterprise’s telephone number in the dossier.

Where the enterprise does not supplement information about the telephone number, the enterprise registration or change notification dossier is considered invalid.

Pursuant to this provision, if the enterprise does not supplement information about the telephone number, the enterprise registration or change notification dossier is considered invalid.