If your organisation sends text messages under its own name, something important changed on 1 July 2026. Under new rules from the Australian Communications and Media Authority (ACMA), any SMS sent with an unregistered branded sender ID now displays the word ‘Unverified’ instead of your name, and is grouped on the recipient’s phone with messages from other unregistered senders, including potential scams.
For small businesses sending appointment reminders and not-for-profits running donation campaigns or event confirmations, this is not a technicality. It goes to the heart of whether your messages get read at all.
What changed and why
A sender ID is the branded name that appears at the top of a text message, such as ‘AusPost’ or ‘myGov’, in place of a phone number. Scammers have long exploited these to impersonate trusted organisations, which is why SMS scams have been so effective.
The SMS Sender ID Register, part of the Federal Government’s anti-scam measures, closes that door. From 1 July 2026, only sender IDs registered with the ACMA display as normal. Everything else is stamped ‘Unverified’ by the telcos. Thousands of organisations registered ahead of the deadline, including Coles, Australia Post and the Australian Taxation Office.
If you only send texts from a standard phone number, nothing changes and no action is needed. The rules apply solely to branded alphanumeric sender IDs.
Why ‘Unverified’ is a problem you cannot ignore
The ACMA itself has warned that messages labelled ‘Unverified’ may be ignored or deleted by customers who are on high alert for scams, putting legitimate communications and brand trust at risk. Consider the practical effect. A medical practice’s appointment reminder, a tradie’s booking confirmation or a charity’s donation receipt now arrives looking exactly like the suspicious messages people are told to distrust.
Years of consumer education about SMS scams has trained Australians to be wary. That caution now works against any organisation that has not registered. Open rates, response rates and, ultimately, trust in your brand are all on the line.
The good news: it is not too late
The 1 July date was the start of enforcement, not a registration cut-off. You can still register your sender ID at any time, and once approved, your messages display your organisation’s name as normal again. But every day a message goes out as ‘Unverified’ does damage, so this belongs at the top of the to-do list, not the bottom.
What your organisation should do now
Audit your messaging. Confirm whether your organisation, or any provider sending texts on your behalf, uses a branded sender ID. Many organisations are not aware their booking system, fundraising platform or customer relationship software sends branded SMS automatically.
Register through your provider. Contact your telco or SMS provider to start registration, or apply directly through the ACMA. Organisations with an ABN can register directly; those without an ABN need to work through a certified provider.
Check your sender ID meets the criteria. Sender IDs must be 2 to 11 characters, include at least one letter, and clearly link to your organisation, matching your registered business name, trademark or domain name. Generic terms will not pass. If you have an ABN, make sure your authorised contact details on the Australian Business Register are current, as that is where approval requests are sent.
Tell your audience. Once registered, let customers, members or supporters know which sender ID your genuine messages come from. This turns a compliance exercise into a trust-building opportunity: when people know what your real messages look like, they can spot fakes and are more likely to engage with the real thing.
The bigger picture
This change is part of a broader shift. Across every channel, from SMS to search to AI-generated answers, verification and authenticity are becoming the price of entry for being heard. Audiences are sceptical by default, and regulators are building that scepticism into the infrastructure. Organisations that treat verification as a strategic asset, rather than a compliance chore, will be the ones whose messages keep landing.
Sources: Australian Communications and Media Authority, SMS Sender ID Register. Full details, registration guides and fact sheets are available at acma.gov.au/sending-text-messages-your-business-or-organisation-name.