RBA Rate Decision Eve: Markets Price 86% Odds of Third Consecutive Hike to 4.35%

The Reserve Bank of Australia faces one of its most scrutinized policy decisions in years when Governor Michele Bullock announces the board's rate call at 2:30pm AEST on Tuesday, May 5. Markets have priced an 86% probability of a 25 basis point increase to 4.35%, according to the latest pricing data, with all four major Australian banks now aligned in expecting the hike.

Consensus Builds for Third Consecutive Hike

The central bank's decision comes at a critical inflection point for the Australian economy. After raising rates in both February and March, the RBA confronts cpi" title="Understanding inflation and CPI in forex">inflation that has reaccelerated to 4.6% — driven primarily by the ongoing Iran conflict's impact on global energy markets. Underlying inflation, measured by trimmed mean CPI, has remained stubbornly elevated at 3.3%, well above the central bank's 2-3% target band.

Commonwealth Bank (CBA), National Australia Bank (NAB), ANZ, and Westpac all forecast a 25bp increase tomorrow, marking a rare moment of consensus among the Big Four. Their alignment reflects the challenging inflation dynamics facing policymakers, with petrol price surges acting as what some economists describe as a "shadow rate hike" on household budgets.

ANZ expects rates to peak at 4.35% after tomorrow's move, suggesting the bank sees this as the final hike of the cycle. NAB forecasts a pause after May to assess how higher fuel costs and tighter financial conditions flow through the economy. However, Westpac has taken a more aggressive stance, projecting additional hikes in June and August that would push the cash rate to 4.85% by the third quarter.

The Inflation Dilemma: Energy-Led But Broadening

The central challenge for the RBA is distinguishing between temporary energy shocks and persistent underlying inflation. While the March quarter's 4.6% headline CPI was propelled by surging petrol prices following the Strait of Hormuz closure, economists warn that energy costs are beginning to cascade through the broader economy.

Food prices, construction costs, and service sector prices have all shown upward pressure as businesses pass through higher input costs. This risks transforming what began as a supply shock into embedded inflation — precisely the scenario the RBA seeks to avoid.

In her most recent public comments, Governor Bullock acknowledged the difficult tradeoff, stating: "If it's hard to get inflation down then we're going to have to deal with that, possibly." The remark signaled the RBA's willingness to risk economic slowdown rather than allow inflation expectations to become unanchored.

Stagflation Risk Looms Large

The most troubling aspect of Australia's current economic environment is the emergence of stagflation dynamics — rising prices paired with slowing growth. Consumer confidence has plunged to historic lows, household spending is weakening, and business investment has decelerated. Yet inflation remains elevated, creating a policy nightmare for the central bank.

GDP growth came in at 2.6% for the previous quarter, but more recent high-frequency indicators suggest momentum is fading rapidly. The unemployment rate has begun to tick higher, and job creation has slowed markedly since the start of 2026.

This creates what economists call the "narrow path" — tightening monetary policy enough to suppress inflation without triggering outright recession. A Reuters poll showed that more than one-third of economists now expect the cash rate to reach 4.60% or higher by year-end, up sharply from forecasts just a month ago.

AUD/USD Strengthens on Hawkish Repricing

Foreign exchange markets have reacted to the shifting rate outlook by repricing the Australian dollar higher. AUD/USD climbed to 0.7214 on May 3, up 4.29% over the past month and 11.53% year-to-date, according to TradingEconomics data.

The currency pair has benefited from the widening interest rate differential between Australia and the United States, where the Federal Reserve remains divided over its policy path following four dissents at its April meeting. With the RBA on a tightening trajectory and the Fed on hold, carry trade dynamics have favored the Aussie.

FX analysts see further upside if tomorrow's decision includes hawkish forward guidance. FXEmpire noted that AUD/USD could grind toward the 0.72215 resistance zone if the RBA signals additional hikes ahead, supported by positive May seasonality and bullish technical structure.

What Markets Will Watch Beyond the Rate Call

While a 25bp hike is nearly fully priced, the real market-moving information will come from the RBA's accompanying statement and Governor Bullock's press conference. Traders and economists will scrutinize several key elements:

• Forward guidance: Does the statement signal more hikes are likely, or is this the peak?
• Inflation assessment: How does the RBA characterize the persistence of underlying price pressures?
• Growth risks: What weight does the board place on recession warnings versus inflation control?
• Energy impact: How long does the RBA expect elevated oil prices to affect the economy?
• Labor market: Has the board detected sufficient cooling in wage growth and employment?

The tone of the communication could determine whether markets price in additional hikes beyond May. If Bullock emphasizes that inflation remains "too high" and the board is "resolute" in returning it to target, that would reinforce Westpac's hawkish scenario of multiple further increases.

Conversely, language acknowledging that monetary policy works with "long and variable lags" and that the board will assess incoming data could signal a pause after tomorrow's move — aligning with the ANZ and NAB view.

Household and Market Implications

For Australian mortgage holders, a 25bp increase would add approximately $100 per month to repayments on an average loan, compounding the financial stress from elevated petrol prices and cost-of-living pressures. Property markets are showing signs of cooling in response to rate hikes, though supply shortages continue to provide some support.

In equity markets, ASX-listed banks stand to benefit from higher net interest margins, while rate-sensitive sectors like real estate and consumer discretionary face headwinds. The materials sector has shown resilience, supported by elevated commodity prices linked to the Iran conflict.

Fixed income traders have repriced Australian government bond yields higher across the curve, with the 3-year yield climbing above 4.20% in anticipation of tomorrow's decision and potential follow-through hikes.

The Global Context: Policy Divergence Intensifies

Australia's tightening cycle stands in stark contrast to other major central banks. The Federal Reserve is on hold amid internal divisions, the European Central Bank has signaled potential June hikes but faces recession risks, and the Bank of Japan continues to battle yen weakness despite massive interventions.

This policy divergence has created opportunities in currency and fixed income markets, with the Australian dollar emerging as one of the strongest performers in G10 FX year-to-date. However, if global growth continues to decelerate — particularly in China, Australia's largest trading partner — the RBA's hawkish stance could become harder to sustain.

Countdown to 2:30pm AEST

With markets overwhelmingly positioned for a hike, an unexpected hold would trigger violent repricing across Australian assets. The probability of such a dovish surprise appears minimal given recent communications and inflation data, but stranger outcomes have occurred when central banks face conflicting mandates.

What seems certain is that tomorrow's decision will not be the final chapter in Australia's inflation battle. Whether the cash rate peaks at 4.35%, 4.60%, or Westpac's projected 4.85%, the path ahead remains highly uncertain — dependent on energy markets, China's economic trajectory, and whether underlying inflation finally begins to moderate.

For Australian households, businesses, and financial markets, the countdown to Tuesday's 2:30pm announcement represents a pivotal moment in what has already been an extraordinary monetary policy cycle.