The Reserve Bank of Australia (RBA) is widely expected to raise interest rates this week, even as the Bank of England and Bank of Canada hold policies steady.
Australia’s closely watched trimmed mean inflation sits at 3.6%, above the RBA’s 2% to 3% target band, and domestic demand still runs hot. That mix appears to be pushing the RBA ahead of its more patient peers.
So why is the RBA way more hawkish than most of its peers?
Why Is the RBA Looking to Hike Rates?
The RBA is scheduled to announce its policy decision on Tuesday’s Asian session, and a 25 basis point hike would take the cash rate from 4.35% to 4.60%.
This would mark the RBA’s fourth hike of 2026, after 75 basis points of increases in February, March and May, and the highest cash rate since late 2011.
Rate hikes make borrowing pricier, so households and businesses spend less and prices get room to cool. A central bank leaning toward higher rates gets called hawkish.
Since some other major central banks tightened policy this month – Federal Reserve (Fed) hiked to 3.75% to 4.00% on September 16, the European Central Bank (ECB) raised its deposit rate to 2.50% on September 10, and the Bank of Japan also hiked this month – the sharper contrast sits with the Bank of England (BOE), which held at 3.75% on September 17, and the Bank of Canada (BOC), which held at 2.25% on September 2.
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What’s Up with This Policy Split?
Two forces appear to drive the split. Every central bank faces the same energy shock, but Australia adds a demand problem of its own.
A central bank can look through an energy spike (i.e., treat it as temporary and leave rates alone) if the rest of the economy stays calm.
For instance, the BOE said soft labor market conditions and higher borrowing costs should help reduce inflation over time. Six of its nine policymakers voted to hold at 3.75%. In Canada, the BOC’s preferred core inflation measures sit close to 2%.
Australia’s picture looks different. Trimmed mean inflation (an underlying gauge that strips out the biggest price swings) held at 3.6% in July. On September 22, RBA Governor Michele Bullock said upside risks to inflation may be materializing, citing high energy prices and continued excess demand at home. Excess demand means Australians want to buy more than the economy can produce without strain, which gives firms cover to raise prices.
Second-quarter GDP beat expectations, and the labor market remains tight. Unemployment sits at 4.6%, and Bullock said 4.5% to 5.0% could help restrain inflation. Translation: she can live with a cooler job market.
The bigger fear involves second-round effects: an oil shock that seeps into wages and everyday price-setting. The RBA’s business contacts already report firms passing higher costs on to customers. In central bank speak, “may be materializing” lands about as close to a hint as Bullock gets while insisting she isn’t signaling anything.
What Could an RBA Rate Hike Mean for AUD/USD?
An expected move is priced in. With odds near 95%, the hike alone may do little for the Australian dollar. Still, a clear warning of further hikes could support the Aussie, while a “one and done” tone could weaken it despite the higher rate.
Interest rate differentials (the gap between two countries’ rates) steer a lot of currency flows, and that gap has two sides. Since the Fed announced a “hawkish hike,” the 10-year U.S. Treasury yield closed Friday around 5.16% after touching its highest level since 2007. That appears to have helped the dollar outmuscle Australia’s rate advantage.
The Aussie held up better against the euro and pound, which suggests dollar strength explains much of the AUD/USD weakness. To track the RBA-versus-holders story, you may get a cleaner read from AUD/CAD or GBP/AUD.
Longer term, the risk cuts both ways. Sticky inflation could push the RBA toward 4.85% while a deeper slowdown could force a pause and strip away some Aussie support.
The Bottom Line: Key Takeaways
- Markets expect an RBA rate hike to 4.60% on September 29, with trimmed mean inflation stuck at 3.6%.
- The RBA has company. The Fed, ECB and Bank of Japan hiked in September, while the BoE and BoC held.
- Domestic excess demand likely separates Australia from central banks that can look through an energy shock.
- A rate hike helps a currency only relative to the other side of the pair. Fed tightening appears to have capped AUD/USD this month.
- With the hike priced in, the RBA’s guidance on future moves may drive the reaction more than the decision itself.
The RBA is widely expected to hike rates this week, but if you’re not sure why a hike that’s already priced in may barely move the Aussie, it helps to know how markets set expectations ahead of a central bank decision. Premium members can read our lesson:
📖 How to Trade Central Bank Decisions Using Market Expectations
Reading this helps you understand what “priced in” really means, how to read market-implied odds like the roughly 95% chance of an RBA hike, and why the RBA’s guidance on future moves could drive AUD more than the decision itself.
And if you’re not a Premium subscriber yet, now’s a good time to sign up.
With Babypips Premium, you get full access to School of Pipsology lessons that help you understand not just whether a central bank hikes, but how market expectations shape the currency’s reaction.
