Log in through the official portal
Visit https://mytax.iras.gov.sg, select “Personal Tax” and use the Singpass login. IRAS describes QR-code login through the mobile app and password login. Foreigners unable to obtain a normal Singpass account can refer to the SFA application guidance.
Complete your profile
Under “Profile”, open “Update Contact & Notification Preferences” to edit mobile number, email and a mailing address different from your residence. Set SMS or email notifications for notices available online. NRIC holders use ICA’s Change of Address service for residential changes. Keep credentials private and log out after use.
Official source
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