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No. A Hong Kong company cannot use a post office box as its registered office address. Section 658 of the Companies Ordinance (Cap. 622) requires every company to maintain a registered office in Hong Kong where communications and notices can be addressed. The Companies Registry's incorporation form is even more explicit: non-Hong Kong addresses, "care of" addresses and post office box numbers are not accepted as a company's registered office.

Payroll can look straightforward when a company is small. Then the team grows, bonus arrangements become more varied, employees join or leave, and filling dates start to overlap. What began as a monthly calculation soon involves MPF contributions, leave records, tax reporting and confidential employee data. 

For Hong Kong businesses, the question is whether to keep payroll in-house or place it with a specialist. Both approaches can work. The right choice depends on your team, systems, headcount and appetite for compliance risk.

Cloud accounting in Hong Kong is now a practical necessity for businesses that want better visibility, faster bookkeeping, and cleaner year-end reporting. Platforms such as Xero and QuickBooks can streamline invoicing, reconciliations, cash flow tracking, and management reporting, but software alone does not guarantee compliance. The real priority is making sure the system is set up correctly, transactions are coded properly, and records are maintained in a way that supports Hong Kong tax, payroll, and annual filing obligations.