Australian private sector capital expenditure rose 0.4% in the December quarter, reaching a near 11-year high just short of $50bn. This was an upside surprise on expectations for a flat result, though the equipment component that feeds into calculations for quarterly GDP growth (due next week) declined (-1.7%). Investment in data centres helped to revive the capex cycle in 2025 and this is set to become a major theme in the next financial year. Initial estimates for the capex spend in 2026/27 are pressing $160bn, their highest since 2013/14.
Private sector businesses increased their capital expenditure (investment spending) by 0.4% in the December quarter, according to today's publication by the ABS. This was well down from the surge in capex seen last quarter (6.4%) but above expectations for no growth.
Spending on buildings and structures rose by 2.3% for the second quarter in succession, broadly aligning with the lift in non-residential construction activity reported yesterday (see here). Meanwhile, equipment spending pulled back by 1.7%. Strictly speaking, this will weigh on quarterly GDP growth - though the broader picture is positive, with equipment spending coming off its strongest quarterly increase since 2009 (11.2%), associated with the fit-out of data centres.
Data centres as well as aircraft purchases and renewable energy projects have all combined to spark the capex cycle. After a slow first half in 2025 (1%), capex accelerated by 6.8% through the back half of the year. This was supported by a significant ramp-up in equipment investment (0.2% to 9.2%), and a lift in buildings and structures (1.7% to 4.7%).
Capex in the information media and telecommunications industry captures the surge in data centre investment. Over the past year, capex in this industry has risen by almost 40% (with equipment up 50% and buildings and structures up 30%).
Today's publication also featured firms' latest capex plans - a hot topic in financial markets at present, particularly around the return on investment from very expensive AI-related projects. The 5th estimate of capex plans this financial year (2025/26) was $199.3bn, a 4.3% upgrade on estimate 4 from three months ago. That puts capex on track to rise by 8.6% compared with the 2024/25 financial year (full details around the composition of capex plans are shown in the capex intentions table above).
The report also gave an early glimpse into the future as businesses provided the ABS with their first estimates of planned capex spending in 2026/27. All told, capex plans next financial year came in just shy of $160bn, their highest since the opening guess for 2013/14. Forecasts for capex spending in 2026/27 were around $112bn for the non-mining sector and $47bn in the mining sector.
Focusing on the data centre impact, planned capex in the information media and telecommunications industry is at this stage forecast to be $20.1bn in 2026/27. That represents a 75% increase on capex plans from this industry just 12 months ago. For additional context, the ABS clocks capex by the industry at around $10bn at the halfway point in the current financial year.














































