COI

Doing business in Hong Kong, following the law is not only a necessity — it makes your business flourish, develop a good name, and conduct business efficiently. If you’re a business owner, investor, or entrepreneur of new ideas, you’ll often be dealing with two important documents: the Certificate of Incumbency (COI) and the Business Registration Certificate (BRC). Although their names might sound alike, they have got extraordinary functions.

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    What is a COI (Certificate of Incumbency)?

    A Certificate of Incumbency is a formal document that confirms the present day shape of your enterprise. These are:

    • Names of directors and officials
    • Shareholder records
    • Registered workplace address
    • Company registration number
    • Legal status of the entity

    In Hong Kong, no such document is prepared by the government. Instead, additionally it is prepared and signed by using the employer’s secretary or registered agent.

    Common Applications of COI:

    • Opening a company bank account
    • Confirmation of enterprise company in prison cases
    • investment rounds due diligence
    • Establishing foreign places branches or operations

    What is a Business Registration Certificate (BRC)?

    The Business Registration Certificate is a criminal report supplied by means of the Hong Kong Inland Revenue Department (IRD). It indicates that your business is registered and running under the Business Registration Ordinance.

    Key Information about a BRC:

    • Business ID quantity
    • Name and address of enterprise
    • Business nature
    • Validity period (typically 12 months to 3 years)

    It is mandatory for all Hong Kong groups to own and renew its BRC.

    Key Differences: COI vs. Business Registration Certificate

    Feature

    Certificate of Incumbency (COI)

    Business Registration Certificate (BRC)

    Issued By

    Company Secretary or Registered Agent

    Inland Revenue Department (IRD)

    Legal Requirement

    Not mandatory, but often needed

    Mandatory under HK law

    Purpose

    Confirms internal company structure

    Confirms legal business registration

    Use Case

    Banking, legal, M&A, verification

    Licensing, tax, local compliance

    Validity

    On-demand, based on need

    1 or 3 years (renewable)

    When Do You Need a COI or a BRC?

    Scenario

    Required Document(s)

    Opening a bank account

    COI + BRC

    Applying for a business license

    BRC

    Participating in legal agreements

    COI

    Submitting tax returns

    BRC

    Corporate due diligence or M&A

    COI

    How FastLane HR Can Supplement Your Business Compliance

    Whether you’re a startup, SME, or foreign business looking to expand into Hong Kong, FastLane HR can help you with:

    • Supplying accurate and bank-ready Certificates of Incumbency
    • Managing and renewing Business Registration Certificates
    • Offering complete corporate secretarial services.
    • Ensuring that you comply with Hong Kong regulations

    We are your reliable partner, so you can concentrate on the most important thing — growing your business.

    Conclusion

    Both the Certificate of Incumbency and the Business Registration Certificate are important but have different functions. The COI shows how your company is internally structured, while the BRC shows that you are legally permitted to conduct business in Hong Kong.

    Understand both of them and handle them in the proper way in order to keep your company in good shape, especially when handling banks, law teams, or international transactions.

    Need Help with COI or Business Registration?

    FastLane HR offers experienced, timely, and regulation-compliant services to meet all your business document needs. Contact FastLane HR today to find out how we can assist your company.