Australian September trimmed mean inflation came in at 3.7% y/y versus 3.6% expected

Australian CPI data for September 2026 and Q3

Q3 quarterly figures

• CPI rose 1.3% on the quarter, matching the 1.3% expected and after a 0.6% prior reading.
• CPI was 3.9% higher than a year earlier, in line with the 3.9% forecast and unchanged from 3.9% previously.
• Trimmed mean climbed 1.0% q/q, in line with the 1.0% expected and following 0.8% previously.
• Trimmed mean rose 3.7% y/y, above the 3.6% forecast and up from 3.5% prior.

September monthly data

• CPI increased 0.8% month on month, versus 0.7% expected and after 0.4% previously.
• CPI rose 3.9% y/y, below the 4.2% expected and down from 4.0% prior.
• The CPI index came in at 104.34 versus 103.50 before.
• Trimmed mean advanced 0.3% m/m, in line with the 0.3% expected and after 0.2% previously.
• Trimmed mean's annual rate was 3.7%, above the 3.6% expected and up from 3.6% previously.
• Weighted median gained 1.0% m/m compared with 0.7% previously.
• Weighted median was 3.6% y/y, matching the prior 3.6%.

Earlier, Bullock sounded hawkish:

• RBA’s Bullock: oil shock pushes inflation above August forecasts, Board meets next week

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Background on these figures:

• Australia CPI preview: banks expect 1.0% core gain, above the RBA’s 0.8% forecast

• Asia economic and event calendar for Wednesday, October 28, 2026: AUD CPI, RBA and RBNZ

• Australia CPI explained: why 2 inflation measures arrive today and which one the RBA watches