New SMS Rules Are Coming: Here's What They Means For Your Firm’s Marketing

Text messaging has become a valuable communication tool for many law firms. 

Whether it's confirming consultations, reminding clients about appointments, sharing important updates, or promoting webinars and events, SMS offers a fast and effective way to stay connected. 

But from 1 July 2026, law firms and businesses in Australia using branded SMS messages will need to comply with a new requirement introduced by the Australian Communications and Media Authority (ACMA). 

The new SMS Sender ID Register is designed to help combat impersonation scams by verifying the identity of businesses and organisations that send branded text messages. While the change is relatively straightforward, firms that fail to register may find their messages labelled as "unverified", potentially impacting client trust and engagement. 

Here's what the new rules mean for law firms and what you should be doing now. 

Why Is This Happening

For law firms, trust is everything. 

Clients regularly receive text messages containing appointment reminders, requests for information, document signing links, payment notifications, and updates about their matter. If those messages appear suspicious or are grouped with unverified senders, clients may be less likely to engage with them. 

The new register is designed to help consumers identify legitimate organisations and reduce the growing problem of SMS impersonation scams. For professional services firms, it also provides an opportunity to reinforce credibility and ensure important communications are recognised as genuine. 

What Law Firms Should Do Now

• Identify whether your firm sends SMS messages using a branded sender ID rather than a mobile number.  

• Speak with your SMS provider, CRM provider, practice management software provider, or marketing platform about registering your sender ID.  

• Check that your Australian Business Register (ABR) details are current, particularly your authorised contact and service of notice email addresses.  

• Review all systems that send SMS messages on behalf of your firm, including appointment booking platforms, client communication tools, and marketing automation software.  

• If your firm uses multiple sender IDs, ensure each one is registered before the deadline. 

Bottom Line

While these changes are being introduced as an anti-scam measure, they also highlight a broader trend: clients are becoming increasingly cautious about digital communications. 

Firms that prioritise trust, transparency and compliance in their marketing and client communications will be better positioned to maintain engagement and protect their reputation. Registering your Sender ID may seem like a small administrative task, but it could play an important role in ensuring your messages continue to be seen, opened and trusted.

Key Takeaways

• Register your firm's Sender ID before 1 July 2026 if you send branded SMS messages.  

• Make sure your ABR details are accurate and up to date.  

• Review every platform that sends texts on your firm's behalf.  

• Continue complying with the Spam Act when sending marketing messages.  

The rules are always evolving. Your marketing shouldn’t have to become a headache. At Zenovate, our aim is to help your firm stay compliant, communicate clearly, and build marketing systems that actually work.

Written By Rumesha Kashif

Rumesha Kashif is a lawyer, marketing creative director, and co-founder of Zenovate Marketing. With over 5 years of experience across legal practice, brand strategy, and digital marketing, Rumesha brings a rare mix of technical expertise and creative insight to her work with professional service firms.

With a Bachelor of Law (First Class Honours) and a Bachelor of Marketing & Media, she understands the regulatory, reputational, and relationship-driven demands of the legal and professional services industries. Rumesha helps lawyers, consultants, and other high-trust professionals create brands that not only look good, but convert - helping professionals stand out with messaging that is clear, credible, and compelling.

Frequently Asked Questions (FAQ’s)

• 1. Do law firms need to register their SMS Sender ID?

  If your firm sends branded SMS messages using your firm name (rather than a phone number), you may need to register your Sender ID before 1 July 2026. Check with your SMS provider to confirm your requirements.

• 2. Does this change affect how law firms send marketing SMS messages?

  The Sender ID Register is separate from existing SMS marketing laws. Firms still need to comply with the Spam Act 2003, including obtaining consent and providing an unsubscribe option.

• 3. What happens if my firm doesn’t register its Sender ID?

  Messages sent using an unregistered Sender ID may appear as “unverified”, which could impact client trust and how recipients engage with your messages. 

• 4. How can Zenovate help my law firm with marketing compliance?

  We help law firms review their marketing systems, communication processes, and client touchpoints to ensure their marketing remains effective, professional, and compliant. 

DISCLAIMER: This article is general information only and cannot be regarded as legal, financial or accounting advice as it does not take into account your personal circumstances. For tailored advice, please contact us. PS - congratulations if you have read this far, you must love legal disclaimers or are a sucker for punishment.