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Please note that the Hongkong Post e-Cert services is scheduled for maintenance on 16 November 2025 from 00:15 to 06:00 (Hong Kong Time). During the maintenance period, online e-Cert services will be suspended. iAM Smart-Cert application / renewal process will be deferred until the maintenance is completed.

Users are advised to make advance arrangements for using the services if required. We apologise for any inconvenience caused.

e-Cert User Guides

1. Notice to e-Cert (Server) Subscribers

2. e-Cert File USB - User Guides

3. e-Cert Token - User Guide

4. Payment by e-Cheque - User Guide

e-Cert services that meet your needs

e-Cert Renewal Notice

If your e-Cert (Personal) is going to expire on or before , please renew your e-Cert now. For more information, please refer to our relevant webpage on renewal.

More Information

For Personal Users

e-Cert (Personal)

Bank-Cert (Personal)

For Corporate Users

e-Cert (Organisational)

e-Cert (Encipherment)

e-Cert (Server)

e-Cert (Organisational Role)

Bank-Cert (Corporate)

Bank-Cert (Bank)

g-Cert (Individual)

g-Cert (Functional Unit)

Public Key Infrastructure Video

Certizen Limited

Hongkong Post

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