How to declare as a dormant company in Hong Kong

An inactive company in Hong Kong which does not have any accounting transaction is required to officially declare itself as dormant as it will not be automatically considered dormant.
To declare as a dormant company in Hong Kong, this includes filing a dormant company tax return, maintaining its records, and complying with changes in corporate law. To apply for dormancy, the company needs to pass a special resolution with at least 75% of the shareholders’ votes. Then the company directors must file the special resolution with the Companies Registry within 15 days of passing the special resolution.

“Dormant” is a legal term that applies to Hong Kong company. The company must have “no significant accounting transactions” during the financial year. The costs incurred for the company to keep its annual registration/incorporation do NOT count as signification accounting transactions, for example the registry office address, secretary services, business registration fee etc…
The directors/shareholders/owners are still responsible for handling and pay for the annual return, tax return (if any), and business registration renewal on time, and they must report any changes in its registration to the Companies Registry department.

The benefits of declaring a company dormant include reduced costs and formalities, preservation of the legal entity for future use, better assets protection. The inactive status also save the time and cost for filing an annual return, appointing auditors, preparing audited financial statements. (Audit Exemption and Reporting Exemption for Dormant Company in Hong Kong)
Annual compliance requirements for a dormant company
a dormant status remains a legal entity and is required to follow certain legal regulations.
A dormant company must:
Having a registered office and at least 1 director, 1 shareholder, and a company secretary
Reporting any changes in the company’s officers or registered office with the Companies Registry
Renewing business registration certificate
Filing Profit Tax Returns if required by the Inland Revenue Department
Pay for the above relevant service fees and government fees

Stop being dormant? Re-activate the company.
If you no longer want the dormancy status, you will need to re-activate the company.
You will have to pass a special resolution with the majority of the shareholders’ votes and notify the Companies Registry about the cessation of the dormant status and declare that the company intends to enter into an accounting transaction.
The company will be deemed to have ceased to be dormant by making an accounting transaction even without notifying the Registrar.
https://www.cr.gov.hk/en/faq/local-company/dormant-companies.htm