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  • Business operator (including Hong Kong residents and Mainland residents) must have registered:
    • Individual Tax Portal (ITP) Account (applicable to sole-proprietorship)
    • Business Tax Portal (BTP) User Account (applicable to business already registered with a BTP Business Account)
  • If there is any change in the business registration particulars of a business or its branches, the business operator is required to notify the change within 1 month
  • Business operator may submit notification via eTAX at GovHK
  • Please click on the button under “Quick Links” for notification submission.
  • The Business Registration Office will generally update the business registration particulars and send the amended business or branch registration certificate(s) by post within 5 working days upon receipt of the notification
  • Please click here for details of notification of change of business registration particulars on the Inland Revenue Department’s website.
  • Please click here for details of New Tax Portals on the Inland Revenue Department’s website.
  • Methods of enquiry
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