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SMS Sender ID Register

Jun 25, 2026 Tech blog

Do you send SMS to clients from your business/organisation name? From 1st July 2026, new rules mean texts sent with an organisation’s name at the top of a message (known as a branded sender ID) will need to have the sender ID registered.

To avoid disruption, you must register your sender ID  before 1 July 2026.

What is a Sender ID?

A sender ID appears at the top of branded text messages. It can tell people who the message is from, for example: ‘ATO’ or ‘AusPost’.

Text messages using telephone numbers are not directly impacted by the new rules.

Why has ACMA introduced this?

The objective is straightforward: reduce scam SMS messages and strengthen trust between customers and the businesses that send them. Registering a branded sender ID helps verify brand ownership and supports a safer SMS ecosystem.

Who needs to register?

Australian and international businesses and organisations can register sender IDs. There are steps you must follow to prove you are a legitimate business or organisation. These steps help to stop scammers from using the register.

You can register sender IDs if you are:

  • an individual
  • a body corporate
  • a corporation sole
  • a body politic
  • a government entity
  • a partnership
  • any other unincorporated association or body of person
  • a trust
  • a superannuation fund

Is Sender ID registration mandatory?

Yes. If you are a business using an alphanumeric sender ID and sending it to Australian customers as of the 1st of July 2026, your organisation must register that branded sender ID with the ACMA-registered sender ID registrar.

What happens if you don’t register?

From 1 July 2026:

  • you will not be permitted to carry SMS or MMS using branded sender IDs
  • messages sent by non-participating Australian telcos and message providers (those with an ABN) will be blocked
  • unregistered sender IDs will be replaced with the word ‘Unverified’ and grouped together in a single message thread on recipients’ phones.

Is registration FREE?

Yes.

 

OFFICIAL ACMA RESOURCES

ACMA SMS Sender ID Register https://www.acma.gov.au/sms-sender-id-register

ACMA User Guides & Fact Sheets https://www.acma.gov.au/sms-sender-id-register-user-guides-and-fact-sheets

Register a Sender ID (ABN Holders) https://www.acma.gov.au/register-sender-id-if-you-have-abn

Sending SMS Using Your Business or Organisation Name https://www.acma.gov.au/sending-text-messages-your-business-or-organisation-name