Compliance Guide to Business Registration Search in Hong Kong

How can businesses be confident they are working with legitimate companies in Hong Kong? A Hong Kong business registration search provides a reliable way for companies, investors, compliance teams, and foreign entrepreneurs to verify official details and confirm whether a business is registered and in good standing.

Using a business registration search supports stronger due diligence by helping to:

• reduce fraud risk

• confirm key registration information

• support compliance with Hong Kong regulatory requirements

In this guide, we explain the main concepts behind business registration searches, including what information can be checked, the tools available, relevant legal and compliance obligations, and the difference between a business registration search and a company registry search. We also highlight how our professional services can simplify the process for international businesses looking to operate in Hong Kong efficiently and securely.

What is Business Registration Search in Hong Kong ?

Under Hong Kong’s regulatory framework, all businesses must have a valid Business Registration (BR) certificate issued by the Inland Revenue Department (IRD). A BR search in Hong Kong allows users to check registered business details directly from official records.

A Hong Kong business registration search provides key information that helps businesses verify counterparties with confidence. The search results typically include the Business Registration (BR) number, official business name, current registration status, nature of business, registered address, and the registration expiry date.

These details allow companies, investors, and compliance teams to carry out due diligence, confirm whether the business is active and legitimate, and better understand the counterparty’s operating profile.

BR searches are commonly used for vendor onboarding, Know Your Customer (KYC) checks, compliance reviews, and general background screening. Because Hong Kong requires timely renewal of business registrations, the search can also help identify expired registrations or other warning signs.

By conducting a BR search in Hong Kong using the Inland Revenue Department (IRD) records, global businesses can lower the risk of engaging with fraudulent entities and strengthen their compliance approach.

Is Business Registration the same as Company Registration?

No—these are not the same. In Hong Kong, Business Registration and Company Registration are handled under two separate systems. In particular:

The governing authority

1. Business Registration is handled by the Inland Revenue Department (IRD) and applies to all types of businesses in Hong Kong, including sole proprietorships, partnerships, and corporations. Its main purpose is to ensure that any business carrying on activities in Hong Kong is properly registered for tax and regulatory requirements.

2. Company Registration, by contrast, is managed by the Companies Registry and applies only to incorporated companies registered under the Companies Ordinance. This framework covers company formation, statutory filings, and the maintenance of corporate records.

The Main Function

A company search gives access to key incorporation records, including directors and shareholders, company structure, and other statutory filings.

By comparison, a Business Registration (BR) search focuses on fundamental business information such as whether the business exists, the validity of its registration, and its business nature—details that are important for tax and compliance checks.

Using both search types where relevant helps global businesses operate more securely, stay aligned with Hong Kong regulations, and make informed decisions when entering or expanding in the Hong Kong market.

Business Registration Number (BRN) 

In this section, we will explain what a Business Registration Number (BRN) is, why it’s important, and where global businesses can find it when performing a business registration search or a business registration number search in Hong Kong.

What is Business Registration Number (BRN) ?

A Business Registration Number (BRN) is an eight-digit identifier issued by Hong Kong’s Inland Revenue Department to businesses operating in Hong Kong. It covers incorporated companies, sole proprietorships, partnerships, non-Hong Kong entities with local operations, and charities that carry out commercial activities.

In addition, the BRN connects each business to its official registration record and is a fundamental part of Hong Kong’s regulatory framework. It is also essential for compliance.

Businesses are required to use the BRN for tax filing, renewing their Business Registration Certificate, and updating their registration details with the relevant authority. Because the BRN is unique to each entity, it is widely used to confirm business identity.

For organisations conducting due diligence, KYC checks, or a Hong Kong business registration number search, the BRN helps verify that a business exists and is authorised to operate. Using the correct BRN enables more accurate verification, strengthens risk assessment, and reduces the likelihood of engaging with unlicensed operators.

Where to find your BR number?

The BRN is clearly shown on the Business Registration Certificate, which is issued once a business is successfully registered and renewed. As a result, this certificate is the most direct source for confirming the number during a BR search in Hong Kong or whenever stakeholders need to verify registered business information.

You can also access the BRN through the Inland Revenue Department’s enquiry service on GovHK, eTAX. This secure platform enables users to look up registration details quickly, making it especially helpful for compliance teams and international businesses that require immediate confirmation.

Types of Company Registration Searches in Hong Kong

Let’s explore the key search tools that global businesses can use to conduct a reliable business registration search—or a company registration search—before entering the Hong Kong market.

IRD Business Registration Number Search

The IRD’s Business Registration Number Enquiry enables users to verify whether a business is properly registered with the Inland Revenue Department.

The enquiry covers a range of entities, including sole proprietorships and partnerships, so the results may not be limited to incorporated companies. It also allows users to determine whether a business name is already on record for tax registration—making it valuable for initial screening and early-stage due diligence.

Companies Registry Company Search through system

The Companies Registry offers a separate Company Search feature via its system. This tool helps verify incorporation information, confirm a company’s status, and assist users who want to check whether a proposed name is available before forming a new company.

Since Hong Kong has strict rules to prevent potentially confusing company names, the search helps ensure the intended name is not identical or overly similar to one already registered. As a result, it’s an important validation step for investors and entrepreneurs preparing to set up a Hong Kong entity.

Trademark search through the Intellectual Property Department

Conducting a trademark search through the Intellectual Property Department provides an additional layer of protection. Even if a name isn’t currently used by an incorporated company, it may still be registered as a trademark. Reviewing the trademark database helps avoid potential infringement risks and supports more effective brand planning.

Social media search

A broad online search can help you identify related domains, brands, and even businesses that may be operating under similar names. While this step isn’t official, it complements the formal searches by flagging potential conflicts that may not show up in government records.

Together, these searches provide a complete view of the market landscape and allow the enterprise to verify legitimacy, protect brand identity.

The key differences between a BR Search vs. Company Registration Search 

A business registration search in Hong Kong and a company registration search are sometimes mistaken for the same thing, but they have different objectives.

The IRD’s Business Registration Register covers businesses operating in Hong Kong, including incorporated companies, sole proprietorships, partnerships, and non-Hong Kong entities with local operations. It provides key details such as the Business Registration Number (BRN), registration status, business nature, and registered address.

In contrast, the Companies Registry keeps records of incorporated companies only. A company registration search offers more detailed incorporation information, including company structure, directors, shareholders, and statutory filings such as annual returns and charges. The CR number is the unique identifier used for entities in this registry.

Foreign entrepreneurs often mix up BRNs and CR numbers because both are used to validate a business. However, the right search depends on what you need to verify.

A BR search is appropriate for confirming any business operating in Hong Kong—including non-incorporated entities—especially for compliance, KYC, or due diligence purposes.

And on other hand , a company registration search is necessary when you’re dealing specifically with incorporated companies, such as when checking name availability before incorporation or reviewing detailed corporate filings.

	BR Search (IRD)	Company Registration Search (CR)
Identifier	BRN	CR number
Covered entities	All businesses (companies, partnerships, sole proprietors)	Incorporated companies only
Information provided	Registration status, business nature, and address	Incorporation details, directors, shareholders, and filings
Usage	Verify existence, tax compliance, and due diligence	Name availability, corporate filings, and incorporation verification

When you need to check registered business information

Confirming business registration information is an essential step for global companies before entering the Hong Kong market.

Due diligence and fraud prevention

Global businesses should review registered business information whenever they work with new suppliers, partners, or service providers in Hong Kong.

This verification is vital for due diligence and fraud prevention. There have been instances where parties have used counterfeit Business Registration Certificates or falsified corporate documents to win contracts or obtain financing.

By conducting a business registration search or a company registration search, businesses can confirm legitimacy, verify Business Registration Numbers (BRNs), and cross-check official details such as company status, addresses, and business nature against government records.

Opening bank accounts and compliance requirements

Reviewing registered business information is equally important when opening bank accounts in Hong Kong. Banks require the BRN and company details to complete onboarding and meet anti-money-laundering (AML) requirements.

They typically ask for official documents such as the Business Registration Certificate, Companies Registry filings (CR documents), proof of directors, and incorporation documents. By cross-checking information from the Inland Revenue Department (IRD) and the Companies Registry, banks can help confirm that these documents are genuine.

By completing BR and CR searches before entering contracts or financial arrangements, global businesses reduce the risk of dealing with fraudulent parties, support regulatory compliance, and build a dependable basis for operating in Hong Kong.

Common problems during a business registration search

Conducting a business registration search in Hong Kong is essential for global businesses to verify partners, suppliers, and service providers. Even when using official tools, a few challenges can still affect the accuracy of the verification.

• Outdated third-party information Commercial directories, online listings, and other unofficial sources can contain outdated or incorrect details. To confirm whether a business is active, its registered address, and its business nature, the most reliable approach is to use the official records from the IRD and the Companies Registry.

• Mismatched business names Many companies operate using different English and Chinese names, or use trade names that differ from their registered legal name. If you search with an incorrect or partial name, you may get incomplete or irrelevant results—so it’s important to cross-check the official registered name with the IRD or Companies Registry.

• Multiple branch management Businesses with multiple branches may hold separate Business Registration Certificates, which can mean there are multiple BRNs associated with the same organisation. Identifying the correct certificate for the relevant branch or headquarters involved in a transaction is therefore essential.

• Confusion between CR numbers and BRNs A Business Registration Number (BRN) applies to all registered businesses, including sole proprietorships and partnerships, while a CR number relates specifically to incorporated companies. Using the correct search approach based on the entity type helps ensure accurate verification in line with Hong Kong regulations.

• Deregistered or expired BR records If a business has stopped operating, failed to renew its certificate, or been deregistered, it may still show up in unofficial databases. This can lead to uncertainty about whether the entity is currently active. To avoid this, verify the registration status directly through the IRD so the information reflects the latest status.

By staying informed about these challenges and thoroughly examining records, global businesses can accurately verify registered business information, minimize operational risks, and move forward with greater confidence in their cross-border partnerships.

BRASIA solutions for Hong Kong business verification and compliance

BRASIA delivers expert advisory support to help global businesses confidently navigate Hong Kong’s regulatory landscape. Our Hong Kong corporate services include company incorporation, banking support, compliance guidance, and ongoing corporate governance—so clients understand their obligations clearly and know the right next steps.

We help clients conduct essential business verification, including business registration searches in Hong Kong, BRN verification, and company registration searches. These checks help confirm the legitimacy of partners, suppliers, and service providers.

Our team also supports interpretation of key documents, such as NAR1 filings, Business Registration Certificates, and IRD filings. This enables clients to accurately assess business status, registered addresses, and corporate structure.

In addition, BRASIA assists with due diligence and KYC processes, offering practical guidance for foreign founders and internal corporate teams who may be unfamiliar with Hong Kong systems. Clients gain clarity on which searches to perform, how to verify BRNs and CR numbers, and how to review official filings for compliance purposes.

With BRASIA, complex verification and compliance tasks become more streamlined and efficient—allowing your team to focus resources on core business activities.

For more information contact us at info@brasia.hk