Form IRBR1: notice to Business Registration Office

What is Form IRBR1

Form IRBR1 is the notice filed to the Inland Revenue Department's at the time of company incorporation. This document triggers the issue of the Business Registration Certificate, which every Hong Kong business must hold under the Business Registration Ordinance (Cap. 310).

The form is submitted together with the incorporation application to the Companies Registry. It is not a standalone filing; it accompanies Form NNC1 (for a company limited by shares) or Form NNC1G (for a company not limited by shares). The Companies Registry forwards the information to the Inland Revenue Department, which then issues the Business Registration Certificate.

Form IRBR1 Hong Kong

In Hong Kong, Form IRBR1 is the standard notice that every new company files with the . The form captures the company's name, the nature of its business, its registered office address, and the date business commenced or is expected to commence. The Inland Revenue Department uses this information to open the company's business registration account and to issue the certificate.

The form is part of the incorporation package. You do not file it separately after incorporation; it is bundled with the Companies Registry forms and processed together.

Notice to The notice to the is the legal requirement that connects company incorporation with business registration. Under the Business Registration Ordinance, every person carrying on a business in Hong Kong must register with the Inland Revenue Department within one month of commencing business. For a newly incorporated company, Form IRBR1 satisfies this requirement at the point of formation.

The notice is mandatory. Without it, the Inland Revenue Department has no record of the company and cannot issue the Business Registration Certificate, which is required for opening a bank account, signing leases, and filing tax returns.

Business Registration Certificate Application

The Business Registration Certificate application is initiated by filing Form IRBR1. The Inland Revenue Department processes the notice and issues either a 1-year certificate or a 3-year certificate, depending on the applicant's choice at the time of filing.

The certificate is not a trade licence. It confirms that the business is registered with the Inland Revenue Department for the purposes of the Business Registration Ordinance. The fee for the certificate is paid to the Inland Revenue Department, not to the Companies Registry, and includes a business registration levy.

IRD Form IRBR1

IRD Form IRBR1 is the official form published by the Inland Revenue Department for the purpose of notifying the of a new business. The form is available on the Inland Revenue Department's forms index and is also integrated into the Companies Registry's electronic incorporation system.

When filing electronically through the Companies Registry's e-Services portal, the information from Form IRBR1 is captured as part of the online application. Paper filers complete the physical form and submit it with the incorporation documents.

Incorporation Business Registration

Incorporation and business registration are two separate legal steps handled by two different authorities. The Companies Registry issues the Certificate of Incorporation under the Companies Ordinance (Cap. 622). The Inland Revenue Department issues the Business Registration Certificate under the Business Registration Ordinance (Cap. 310).

Form IRBR1 is the bridge between these two processes. It ensures that the company is registered for business purposes at the same time it is incorporated. A company that has its Certificate of Incorporation but no Business Registration Certificate is not yet compliant with Hong Kong law and cannot lawfully carry on business.