A Sender ID is the name that appears at the top of a text message, such as “ATO” or “myGov”. If your business sends messages branded with a Sender ID and does not register, your Sender ID will be replaced with the word “unverified” after the deadline, which could undermine customer trust.
Reason for the change
In just the first nine months of 2025, Australians lost over $13.8 million to SMS scams impersonating trusted organisations. A verified Sender ID aims to restore confidence and curb these impersonation scams.
What you need to do
Register with ACMA by 15 May 2026 or as soon as possible by completing the following steps:
If your business does not use a Sender ID and only sends messages from a phone number, no action is required.
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