Tax contributions from multinational data centre operators are relatively small compared to their Australian revenue, with Google paying $92.6 million in income tax on $8.4 billion gross revenue in 2022, highlighting tax-advantage strategies and ongoing regulatory challenges.

Executives and commentators warn of a potential ‘offshoring’ scenario where Australia exports data and capital but imports AI capacity at premium, stressing the need for deliberate national strategy to retain value domestically.

There is a tension between the value captured domestically and the value generated through enabling AI capabilities, with policymakers urged to implement clear policy settings to ensure Australia benefits from the data centre boom rather than becoming a passive consumer of offshore compute.

Energy and generation concerns are significant: data centres currently consume about 2% of grid electricity, with projections to rise to 6% by 2030 and 12% by 2050, raising risks of higher wholesale prices without parallel investment in new generation capacity.

When hyperscale operators like Amazon, Google and Microsoft build and fill their own facilities, 70 to 75 percent of the total cost goes to IT equipment sourced overseas, with roughly another $12 to $15 of every $100 spent leaving Australia for power systems and cooling from international suppliers.

There is a broader economic multiplier argument: Deloitte calculates potential GDP uplift of up to $134 billion by 2050 in a full hub scenario, driven by productivity gains and supply-chain activity, though this is contingent on policy, software, R&D, and workforce development.

Australian data centre investments show that for every $100 spent, only about $10 to $15 stays onshore in direct costs when domestic operators build the facility and bring in hardware from overseas suppliers dominate the remaining spend.

Australian-founded operators (NextDC, AirTrunk, CDC) behave differently by building the shell and infrastructure and leasing space to tenants who bring their own hardware, resulting in about $45 to $55 of every $100 staying onshore and a smaller total investment.