⚠️ Disclaimer: This guide provides general information only and does not constitute legal advice. Consult a legal professional for advice specific to your situation.
ABN Display Requirements
Under the A New Tax System (Australian Business Number) Act 1999, businesses must display their ABN on certain documents. While emails are not explicitly listed, it's considered best practice — and often expected by clients and the ATO.
- Include your 11-digit ABN in your email signature
- Format: ABN XX XXX XXX XXX (with spaces for readability)
- If you have an ACN, include it too: ACN XXX XXX XXX
Spam Act 2003
The Spam Act regulates commercial electronic messages. Your email signature should help you comply:
📋 Sender Identification
The Spam Act requires that the sender is clearly identified. Your signature fulfils this: name, business name, contact details.
📧 Contact Information
Must include accurate contact information. Your business address (physical or postal) should be accessible.
Industry-Specific Requirements
⚖️ Legal Practitioners
Must include practising certificate number, law society membership, and confidentiality disclaimer. See our lawyer signature templates.
🏠 Real Estate Agents
Must display licence/registration number. State-specific requirements vary. See our real estate signature templates.
🏥 Healthcare Professionals
Must include AHPRA registration number. May need to include Medicare provider number. See our healthcare signature templates.
🔧 Engineers
Must include relevant registration (CPEng, NER, RPEQ). State requirements vary. See our engineer signature templates.
💰 Financial Services
AFSL number must be displayed. May need to include general advice warning and FSG reference.
Confidentiality Disclaimers
While not legally required in Australia, confidentiality disclaimers are standard practice. A typical disclaimer includes:
- Statement that the email is confidential and intended for the recipient
- Instruction to delete if received in error
- Statement that views are personal and may not represent the company
📋 Compliance built in: Our professional templates include fields for ABN, registration numbers, and optional disclaimers. Browse compliant templates →