Australia core inflation stays high, rate pressure builds

Australia core inflation stayed above the Reserve Bank of Australia’s target ceiling in May, adding weight to expectations that interest rates will remain restrictive for longer. New figures showed underlying price pressures are proving difficult to dislodge even after multiple rate increases this year.

The Australian Bureau of Statistics reported on Wednesday that the trimmed mean measure of annual consumer-price growth rose to 3.6%. Economists had expected a 3.5% reading, making the outcome slightly firmer than forecast.

Headline inflation was also elevated, with the consumer price index rising 4% over the year. The ABS said prices increased across all 11 major groups of goods and services, indicating broad-based pressures rather than a narrow set of volatile categories.

Underlying inflation remains outside the RBA comfort zone

The RBA’s inflation target is 2% to 3%, with policymakers aiming to steer inflation toward the midpoint over time. The central bank has not hit that objective since 2021, underscoring how persistent the post-pandemic price surge has become.

Inflation has been running above the top of the RBA’s band since the second half of last year, according to the data cited in the report. With the trimmed mean still well above 3%, the latest reading suggests underlying momentum remains inconsistent with a swift return to target.

Central banks often pay close attention to trimmed mean inflation because it removes extreme price moves that can obscure the broader trend. A higher-than-expected result can make policymakers more cautious about easing financial conditions.

Rate hikes and broad price rises squeeze households

Elevated inflation continues to erode purchasing power, particularly for households facing higher borrowing costs. The RBA has delivered three interest-rate increases so far this year, compounding pressure on mortgage holders and other borrowers.

The ABS breakdown also points to the breadth of the challenge, with all 11 CPI groups recording increases. When price gains are widespread, inflation can be harder to bring down because businesses across sectors may pass on higher costs and consumers face fewer areas of relief.

For policymakers, broad-based inflation can signal that demand remains resilient or that supply-side pressures are still feeding through. Either way, it raises the risk that inflation settles above target unless monetary settings remain tight.

Global energy costs add to inflation uncertainty

External factors are also in focus, with higher fuel prices adding to cost pressures. The report linked rising energy costs to the US war against Iran, which has pushed up fuel prices and could complicate the inflation outlook if sustained.

Energy-driven inflation can filter into transport costs and the pricing of goods and services, even if the initial shock is concentrated in petrol. That dynamic can slow the pace of disinflation and keep expectations of further policy restraint alive.

With the trimmed mean above forecasts and headline inflation still at 4%, the immediate implication is that the RBA is likely to retain a hawkish bias. Markets and households will be watching upcoming inflation prints and RBA communications for confirmation of whether rates stay on hold for longer or tighten further.