On 29 September the Reserve Bank of Australia raised its cash rate by 25 basis points to 4.60 percent. All nine board members voted for the increase. It was the bank's fourth hike of 2026, and it took Australian rates to their highest level in nearly 15 years. The board blamed rising energy prices after the escalation of conflict in the Middle East and strong demand for technology products linked to artificial intelligence, and it said it would raise rates again if needed. Four days later the United States reported that it had added only 29,000 jobs in September. For currency traders, those two facts together describe the most important divergence in the market right now.
Why the RBA kept going
Central banks usually explain a hike with domestic data, and the RBA did point to stubborn inflation at home. But its statement leaned unusually heavily on global forces. Energy costs have climbed with tension in the Middle East, and Australia, despite being a major energy exporter, feels those prices quickly through fuel, electricity and transport. The bank also highlighted AI-related demand, from data centres to the hardware supply chain, as a new source of price pressure.
That combination matters because it is not something Australian households can control by spending less. When inflation comes from global energy and a global technology boom, a central bank has to decide how much domestic pain it is willing to inflict to offset forces it cannot touch directly. The RBA has chosen to act firmly, betting that letting inflation expectations drift would cost more later.
The unanimous vote is the strongest signal in the decision. Split votes leave room for markets to bet on a quick reversal. A nine to zero decision tells traders the board is aligned, and it makes it harder to argue that this hike was the last. Most economists still see 4.60 percent as the likely peak, but ANZ is forecasting another increase in November that would take the cash rate to 4.85 percent.
The gap with the Federal Reserve is the trade
The Federal Reserve raised rates to 3.75 to 4 percent in September and signalled more. Until last Friday, markets assumed both central banks were tightening together. The September payroll report changed that. A gain of only 29,000 jobs, against forecasts near 90,000, made a pause by the Fed far more likely, while the RBA has given no sign of stopping.
When one central bank keeps raising rates and another looks ready to stop, money tends to flow toward the currency with the higher and rising yield. That is the textbook case for a stronger Australian dollar against the US dollar. The rate gap between the two countries, already in Australia's favour, could widen further if the Fed pauses in October and the RBA hikes again in November.
Textbook cases do not always play out. The Australian dollar is also a risk currency, closely tied to commodity prices and to China's economy. If weak US data sparks fears of a global slowdown, investors may sell risk assets, including the Australian dollar, even as the rate gap moves in its favour. That tension between yield and risk is what makes AUD/USD one of the most interesting pairs to trade this month.
- RBA cash rate: 4.60 percent after a 25 basis point hike on 29 September
- Fourth hike of 2026 and the highest rate in nearly 15 years
- Vote: unanimous, nine to zero
- Fed funds target: 3.75 to 4 percent, with US payrolls up only 29,000 in September
- Forecasts: most see 4.60 percent as the peak; ANZ expects 4.85 percent in November
What it means for Asian currencies
Australia's decision ripples through Asia in two ways. Directly, a stronger Australian dollar affects trade and tourism with Southeast Asian partners and changes relative returns for regional investors who hold Australian assets. Indirectly, it adds to the pressure on Asian central banks that are trying to manage imported inflation from the same energy and technology forces the RBA described.
Central banks in Thailand, Indonesia and the Philippines face the same imported price pressures but generally have less room to raise rates without hurting growth. If the US dollar softens on a Fed pause, those currencies get relief. If Australia keeps hiking, it shows that at least one developed economy believes the inflation threat is not over, which may encourage Asian central banks to stay cautious rather than cut.
For traders in the region, the practical point is that the dollar is no longer the only story. Australia, and to some extent other commodity economies, are setting their own paths. Pairs such as AUD/JPY and AUD/SGD, which many Asian retail traders watch, will respond to the RBA's next moves as much as to anything the Fed says.

What Australian households and businesses face
Behind the market story is a heavy domestic cost. Australian mortgages are mostly variable rate, so every hike flows quickly into household budgets. Four increases in a single year means many borrowers have seen repayments rise sharply, and businesses face higher borrowing costs just as energy bills climb. The RBA is betting that this pain now prevents worse inflation later.
That domestic squeeze is also why many economists think the bank will pause after this move. Consumer spending is the channel through which higher rates cool inflation, and it tends to respond with a lag. If spending weakens noticeably over the next two months, the board may decide it has done enough, regardless of the November forecasts.
Housing is where the pressure is most visible. Australian property prices are high relative to incomes, and many recent buyers borrowed heavily when rates were far lower. Each increase pushes more of those households toward financial stress, which the RBA watches closely through arrears data and bank reports. If arrears start rising quickly, the board will find it much harder to justify another hike, whatever the inflation figures say.
When one central bank keeps raising rates and another looks ready to stop, money tends to flow toward the higher and rising yield.
How traders can approach AUD/USD this month
The cleanest way to think about the pair is as a contest between two forces. Rate divergence argues for a stronger Australian dollar. Global risk sentiment can argue against it. Traders should watch US inflation data, Australian monthly consumer price figures and China's economic releases together, because any one of them can tip the balance. Position sizes should reflect that uncertainty rather than conviction in one story.
For brokers serving Australian and Asian clients, this is a moment to explain the divergence clearly, with charts and plain language, as we did in our analysis of the Fed's September hike. Clients who understand why a pair is moving are more likely to manage risk sensibly and stay active through volatile weeks.
The bigger message from the decision
The RBA's move is a reminder that the inflation fight of the 2020s has not ended in a neat, synchronised way. Energy shocks, AI investment and geopolitics are pushing prices in different directions in different economies, and central banks are responding on their own timetables. For markets that were used to every central bank following the Fed, that is a significant change.
Commodity markets will help settle the argument. The Reserve Bank's own statement tied the hike to energy, and Australia's export earnings depend heavily on iron ore, coal and gas. If those prices stay firm, the Australian economy can absorb higher rates more easily and the currency gets extra support. If China's demand weakens, both the growth outlook and the currency case soften together, and the RBA may pause sooner than its hawkish language suggests.
What did the RBA decide on 29 September 2026?
The Reserve Bank of Australia raised its cash rate by 25 basis points to 4.60 percent in a unanimous vote, its fourth hike of 2026.
Why did the RBA raise rates?
It cited inflation risks from higher global energy prices following escalation in the Middle East and strong demand for technology products driven by artificial intelligence.
Will the RBA raise rates again?
The board said it would raise rates further if needed. Most economists see 4.60 percent as the peak, but ANZ forecasts another hike in November to 4.85 percent.
How does the RBA hike affect AUD/USD?
A rising Australian rate while the Fed looks closer to pausing supports the Australian dollar, but global risk sentiment and commodity prices can offset that effect.
Australia's fourth hike would have been a modest story in a quiet week. Landing just before a sharp US jobs miss, it became the clearest example of central banks moving in different directions. Traders who treat the RBA and the Fed as separate stories, with separate data and separate risks, will read this month's moves better than those who assume the old pattern of everyone following Washington still holds.
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