Australia inflation rises to 4.3% in September, exceeding forecasts and RBA target

What happened

Australia's annual inflation rate rose to 4.3% in September 2026 from 4.0% in August, above forecasts of 4.2% and the highest since March. Monthly CPI climbed 0.8%, and the trimmed mean rose to 3.6% year over year.

Confirmed

Global impact / market context

Prices are rising faster than the Reserve Bank of Australia's 2%–3% target range, which means interest rates may stay higher or rise further. Higher rates raise borrowing costs for companies and households, potentially slowing spending, investment and company profits.

Analyst inference

Investors already expect a fifth RBA rate hike this year, and the Australian dollar strengthened past $0.70 to a five-week high. The benchmark index rose to a seven-week high, suggesting investors see the economy holding up despite hotter inflation.

Analyst inference

What to watch

1. The trimmed mean CPI, which strips out volatile items, rose to 3.6% year over year from 3.5% in August and matched forecasts. Confirmed
2. Watch whether the Reserve Bank of Australia raises rates again, since investors are pricing in a fifth hike this year, which would raise borrowing costs. Proposed
3. Watch the Australian dollar after it strengthened past $0.70; a stronger currency can make exports more expensive, affecting revenue for companies selling overseas. Analyst inference

Evidence

• seekingalpha.com