Start with the tax-agent route
Open myTax Portal and choose the tax-agent login category. The firm or client-service scope is selected after identity authentication; logging in as an individual is not, by itself, selection of the client whose affairs will be handled.
Using the Singpass app
Open myTax Portal and choose the appropriate login category. In the April 2021 guide, app authentication involves scanning the displayed QR code, confirming the login request in Singpass and verifying your identity using supported fingerprint or facial authentication, or the six-digit app passcode. The guide restricts Singpass Foreign users to this app route.
The password and second-factor route in this edition
The alternative shown for other users starts with the Singpass identity and password. The guide then offers SMS verification using a six-digit code sent to the registered mobile number, or face verification. The facial route requires a device with a front-facing camera, asks the user to read the scanning guidance and follow the on-screen scan instructions, and advises against this method for people sensitive to flashing lights. These are the options in the 2021 document, not a guarantee that every option remains available today.
Selecting the entity and foreign-user reference
Where more than one Corppass account is associated with the login, the guide displays an entity-selection step. Choose the relevant UEN or entity identifier. Singpass Foreign users are also directed to enter the tax reference assigned by IRAS before continuing. Entity selection and personal identity verification serve different purposes.
Assigned client services and service groups
For staff authorised through client-service groups, the guide distinguishes services assigned directly to the staff member from a selected group of client services. Choose the appropriate option; where a group is used, select it from the dropdown and continue. The selected group determines the clients whose services can be performed during that session. To work on another group, the 2021 guide requires logging out and signing in again with that other group selected.
Complete the service selection
Once the firm and client scope are correct, open the required electronic service through the navigation bar. This 17-page edition was published on 5 April 2021. It is a historical description of portal access, including the older password and second-factor options, rather than a new client-authorisation instruction.
Official source
This article independently explains the substantive contents of the official PDF, including the relevant conditions, procedures and annexes. The linked document remains the authoritative source for its original wording, and later changes should be checked separately.
Read the official PDF ↗