Who must comply with the Spam Act 2003 (consent, identify, unsubscribe)?
The applicability test for Comply with the Spam Act 2003 (consent, identify, unsubscribe) (ACMA), computed across 35 industries, 9 business structures and 6 size bands.
Short answer: Every business
Applies when the business has consumer customers and customer contacts or industry: E-commerce & online retail / Media & publishing / Telecommunications carriers / CSPs.
What the obligation is
All commercial electronic messages must have consent, identify the sender, and offer a working unsubscribe.
The Spam Act 2003 prohibits sending commercial electronic messages (email, SMS, instant messaging) without consent, requires accurate sender identification, and a functional unsubscribe facility (effective within 5 working days, no cost beyond the cost of sending the unsubscribe request, valid 30 days minimum). ACMA enforces; recent infringement notices exceed $1M.
The applicability test
Applies when the business has consumer customers and customer contacts or industry: E-commerce & online retail / Media & publishing / Telecommunications carriers / CSPs.
How the regulator frames it: Anyone sending commercial electronic messages in Australia or with an Australian link.
What triggers it: Sending commercial electronic messages.
Jurisdiction: Commonwealth law, so the test is the same in every state and territory.
Which industries are in or out
Outcome across the 35 industries Rules Mate maps (35 of 35: yes).
The answer is the same in every industry: yes. Industry does not change who must comply.
Business structure and size
Structure does not change the answer across all industries: for every structure the answer is "yes".
Size does not change the answer across all industries: at every size band the answer is "yes".
Worked examples
Each line is one run of the Rules Mate applicability engine for a single business profile, with the reason the engine gives:
- Pty Ltd company in real estate agents with 6–19 employees, turnover $1M–$3M: applies. Sells to consumers · Holds customer contact details.
What you must do, and when
- When due
- Ongoing.
- Frequency
- Ongoing
- Evidence to keep
- Consent records, sender ID configuration, unsubscribe handling logs.
- Status
- Current
- Priority
- High
Penalty for not complying
Maximum penalty: Civil penalties (Federal Court, per day): up to $728,000/day (first) or $3.64M/day (repeat) for a body corporate; plus ACMA infringement notices.
Audit or assurance level
Rules Mate has not yet classified the audit or assurance level for this obligation. Any audit, review or certification requirement is set by the regulator source listed below.
Enforcement examples
- ACMA infringement — Doordash (Spam Act) (2024): Tech / gig-economy marketing automation under sustained Spam Act enforcement.
- ACMA infringement notice — Uber Australia Pty Ltd (Spam Act) (2024): Express vs inferred consent records must be auditable per address. Unsubscribe must work within 5 business days and free of charge.
- ACMA enforcement — Commonwealth Bank (Spam Act) (2023): Marketing automation platforms must verify functional unsubscribe at scale. ACMA penalties on a per-message basis compound quickly.
Where it sits in the corpus
Rules Mate tracks 7 published obligations tagged "marketing", 0 of them rated critical. For a professional services Pty Ltd company with 6–19 employees operating in every state, 1 of those apply outright. This obligation is rated high priority, and is an ongoing duty.
Regulator, legislation and tools
Regulated by Australian Communications and Media Authority.
ACMA: Telecommunications, broadcasting, radio, and online content regulator. Administers Spam Act, Do Not Call Register, telecom consumer codes.
Spam Act 2003: Prohibits unsolicited commercial electronic messages.
Free tools that help with this obligation:
Questions
- Who must comply with the Spam Act 2003 (consent, identify, unsubscribe)?
- Applies when the business has consumer customers and customer contacts or industry: E-commerce & online retail / Media & publishing / Telecommunications carriers / CSPs.
- Do sole traders need to comply with the Spam Act 2003 (consent, identify, unsubscribe)?
- Yes. Across every industry and every size band, the engine's answer for a sole trader is: yes.
- Do businesses with 1–5 employees need to comply with the Spam Act 2003 (consent, identify, unsubscribe)?
- Yes (1–5 employees, turnover $100K–$1M).
- When is "Comply with the Spam Act 2003 (consent, identify, unsubscribe)" due?
- Ongoing.
Related
Sources
Computed by the Rules Mate applicability engine from the published obligation corpus; facts last checked 3 October 2026. Rules Mate is not a law firm and this is general information, not legal advice. Confirm your position with the regulator source or a qualified adviser before acting.