Email signature legal requirements — what you need to include
What businesses are legally required to include in email signatures in the UK, US, EU, and Australia.
Email signature legal requirements — what you need to include
- 1
UK (Companies Act 2006): Limited companies and LLPs must include the registered company name, registration number, country of registration, and registered office address in all business emails.
- 2
EU (eCommerce Directive 2000/31/EC): Businesses selling online must include their legal trading name, address, company registration details, and VAT number if registered.
- 3
USA: No single federal law mandates specific content for personal business emails, but the CAN-SPAM Act requires a physical address in commercial and marketing emails.
- 4
Australia (Corporations Act 2001): Companies must include their ACN (Australian Company Number) or ABN in all business communications.
- 5
Healthcare and financial services: Always include jurisdiction-specific disclaimers — consult your compliance team for the exact required text.
- 6
Use the Disclaimer field in the generator above to add your legal text — it renders in a small font below your contact details in all major email clients.
- 7
Review your legal requirements annually — regulations change and non-compliance can carry significant fines.
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