Have you ever thought about how governments keep tabs on the activities of 2.7 million businesses? In Australia and New Zealand, it all comes down to a four-digit code. The Australian and New Zealand Standard Industrial Classification (ANZSIC) groups every business from Pilbara’s iron ore miners to Melbourne’s physiotherapists into precise categories. While it might seem bureaucratic at first, this system is vital: it drives tax collection, shapes employment policy, informs economic forecasts, and guides billions in government spending. Here’s why it’s more important than it seems.

What ANZSIC Actually Is: 19 Divisions, One Entire Economy

Think of ANZSIC as a shared language created by the ABS and Statistics New Zealand making it easier for both countries to understand, organise, and compare what all kinds of businesses actually do. The version we use today, ANZSIC 2006 (Revision 2.0), came out in 2013 and sorts the economy into four layers: 19 Divisions (from A to S), 96 Subdivisions, then Groups and Classes. If you work in manufacturing, you’re part of one of 143 different classes the most in any division. And that four-digit code every business gets? It’s like a badge that helps regulators, analysts, and researchers know exactly what each company is about.

Market Insight: ANZSIC codes are used by the ATO for Business Industry Codes (BIC), by regulatory agencies for compliance, by researchers for economic analysis, and by businesses themselves for benchmarking against industry peers.

The 19 Divisions: A Snapshot of Who Does What

Imagine the Australian economy as a bustling city with 19 vibrant neighbourhoods, each representing a different slice of life. There’s Agriculture, Forestry and Fishing (A), where the food on our tables begins; Mining (B), the engine room of resources; Manufacturing (C), where raw materials take shape; and Electricity, Gas, Water and Waste Services (D), the behind-the-scenes crew keeping things running. Stroll a little further and you’ll find Construction (E), Wholesale Trade (F), and Retail Trade (G) the builders, suppliers, and shopfronts of our daily lives. Stop in at Accommodation and Food Services (H) for a meal, or hop over to Transport, Postal and Warehousing (I) to see how everything moves. The city’s skyline is lit up by Information Media and Telecommunications (J), with Financial and Insurance Services (K) making sure everyone’s covered. There’s space for Rental, Hiring and Real Estate Services (L), Professional, Scientific and Technical Services (M), and the crucial support players in Administrative and Support Services (N). Public Administration and Safety (O) keeps things in order, Education and Training (P) shapes the future, Health Care and Social Assistance (Q) cares for us, and Arts and Recreation Services (R) brings colour and life while Other Services (S) fill in all the gaps. Together, these divisions paint the full picture of Australia’s economic landscape.

Zooming in on what’s happening right now, Healthcare (Division Q) is the real people-magnet, employing more than 2.2 million Australians more than any other sector and growing fast as new businesses pop up everywhere. Mining (Division B) still brings home the biggest paycheques, with profits jumping 8.1% in just the last quarter of 2025. Over in the world of Professional, Scientific and Technical Services (Division M), things are buzzing thanks to the huge demand for IT consultants and engineers. But not every story is rosy: Manufacturing (Division C) shed 15,500 jobs last year, a sign that Australia is steadily moving away from old-school goods production and toward new kinds of work.

Why It Matters: More Than Just a Code

ANZSIC goes well beyond simple bureaucracy it’s foundational to how Australia understands and manages its economy. The ABS relies on ANZSIC codes to break down GDP by industry, monitor employment trends, and create the National Accounts. The Australian Tax Office adapts these codes for tax purposes, while regulators use them to build compliance frameworks. Researchers depend on ANZSIC to compare industries both domestically and internationally. When the government invests $8.5 billion in Medicare or allocates $120 billion for infrastructure, it’s ANZSIC data that guides funding decisions and measures outcomes.

Market Insight: Healthcare and Social Assistance (Division Q) was the most frequently cited ANZSIC division code at 19%, reflecting the sector’s dominance in both employment and business formation across Australia.

The Big Question: Is ANZSIC Keeping Up?

This is where things start to get complicated. ANZSIC 2006 was built for a time when mining and traditional service industries were at the forefront. Fast forward twenty years, and new players like ride-sharing apps, digital marketing firms, and distributed energy providers don’t fit easily into categories created before smartphones even existed. In 2022, the ABS launched a public consultation to consider whether ANZSIC needs an update, a switch to a local version of the UN’s ISIC Revision 5, or a complete overhaul.

ISIC Revision 5, now the global standard, finally puts the digital economy front and centre, introducing new categories for platform-based businesses and renewable energy. However, it doesn’t offer the level of detail Australia requires such as distinguishing between dairy and beef cattle farming, or between residential and commercial construction. The ABS is considering adopting ISIC as a broad framework, then layering Australian-specific categories underneath. This hybrid model could deliver both international alignment and the local detail policymakers rely on.

What Comes Next: The Gig Economy, AI, and the Classification Gap

The rise of the gig economy, AI-powered enterprises, and a surge in solo business operators now representing 63.6% of all Australian businesses are pushing ANZSIC to its limits. Take, for example, a freelancer running an AI consultancy from a laptop; they don’t fit neatly into a classification system originally designed for factories and storefronts. Future updates will have to reflect these new business realities while preserving the consistency and comparability that make ANZSIC so useful. Rolling out a new system won’t be simple either: any changes must pass through the Australian Business Register and then the ABS Statistical Business Register, impacting how data is sampled, estimated, and reported in the National Accounts.

Market Insight: Stats NZ has also noted that the western orientation of both ANZSIC and ISIC limits applicability in the New Zealand context, particularly for Māori economic activities. Any future revision will need to balance international comparability with local cultural and economic realities.