FAQs about eTAX Mobile App

You can download the "eTAX" Mobile App from Apple App Store, Google Play Store and Huawei AppGallery. Downloading and using the "eTAX" Mobile App is free of charge.

If you are using a mobile data network to download the "eTAX" Mobile App, please note that your mobile network provider may charge additional fees based on your mobile data usage.

To download and use "eTAX" Mobile App, the Operation System of mobile phone must be

1. iOS 16.0 or above
2. Android 10.0 or above
3. HarmonyOS 4.0 or above

For the best experience using "eTAX" Mobile App, it is recommended to use devices with more recent mobile phone operating systems and browsers.

Please note that only one mobile device is allowed to access "eTAX" account at the same time.

The "eTAX" Mobile App will not be able to use when:

1. the network connection is bad;
2. the version of your "eTAX" Mobile App is not up-to-date;
3. your "eTAX" account is not valid;
4. your "eTAX" account is suspended or

"eTAX" Mobile App can only be downloaded and used on mobile phone.

To receive push notifications from eTAX online services, users must enable the notification of Settings in the mobile phone. Users can also log into the "eTAX" Mobile App by using "iAM Smart" or Taxpayer Identification Number (TIN) and password, and then go to Settings > Push Notification to turn off or on the push notifications.

In case you do not receive push notifications from the "eTAX" Mobile App, there may be several reasons;

1. please check your internet connection to ensure the network is stable;
2. your mobile device may be set to disable notifications, so please confirm that you have authorized the app to send notifications;
3. your mobile device is in “Do Not Disturb” mode, messages may be muted and background data restrictions may prevent notifications from being received;
4. please ensure that you have installed the latest version of the "eTAX" Mobile App as older versions may not be compatible;
5. If you uninstalled or reinstalled the app recently, you may need to re-enable the push notifications.

Mobile phones must be equipped with biometric authentication function. Users may log into the eTAX Mobile App by using "iAM Smart" or Taxpayer Identification Number (TIN) and password, and then go to Settings > Biometric ID to turn off or on the Biometric Authentication.

The biometric authentication function of the "eTAX" Mobile App may only support fingerprint authentication since different brands and models with various version of System Operation and settings of each mobile phone.

Since the system does not allow user to login to the "eTAX" service by opening a new tab under the same browser at the same time, you will encounter “Error 800” message under the following circumstances:

1. there is another active eTAX service session in a tab under the same browser at the same time; or
2. there is previous eTAX service session in a tab under the same browser that has not been properly logged out.

Please return to the first tab to continue using the eTAX service or close all the tabs under the same browser and try again.  For Android / HarmonyOS devices, as the cookies cannot be cleared even you have closed all the tabs under the browser, please clear all cookies under the browser settings option.

The PDF file will be downloaded to and saved in your device automatically when you read it by using Android / HarmonyOS devices. You may open the file at the "Download" folder using a PDF Reader. Please note that If you do not wish to store tax documents in mobile devices, please delete the PDF documents in the “Download” folder after viewing.

No.  Each mobile phone can only be linked with one eTAX account at the same time.  If you want to change the linked user of the “eTAX” Mobile App, please login to the Individual Tax Portal (ITP) account and cancel the registration of related mobile device via the function “Unregister Mobile Device”.  When the request is completed, you can login the “eTAX” Mobile App with another user account on the related mobile phone.

To prevent unauthorised access to your tax information by any person, including messages in the Message Box of your ITP account and push notifications the Department sends you, you should uninstall the eTAX App in your old mobile device when you switch over to a new mobile device. You should also unregister the old mobile device via the “Unregister Mobile Device” service in your ITP account.