Australian Confidence Slumps as Fuel Prices, Rate-Hike Fears Rattle Consumers and Businesses Alike

Australia's economy sent three discouraging signals within the space of a single trading session Monday: consumer confidence posted its sharpest monthly drop since April, a closely watched gauge of business conditions turned negative for the first time in six years, and the country's benchmark stock index slid to its lowest level in six weeks. The common thread running through all three was the same one vexing central bankers across much of the developed world this year: inflation that will not fully recede, met by an interest-rate outlook that has again turned uncertain.

The Westpac-Melbourne Institute Consumer Sentiment Index fell 5.2% to 84.4 in September, giving back nearly all of a rebound recorded in August, according to a bulletin published by Westpac's economics team. A reading below 100 indicates pessimists outnumber optimists; September's figure put the index nearly 12% below its year-earlier level. On the same day, National Australia Bank's monthly business survey showed conditions dropping five points to -1, their weakest reading since August 2020, while a separate confidence sub-index fell to -8.

The Numbers

The declines were broad-based rather than concentrated in one corner of the economy. In the consumer survey, assessments of family finances compared with a year earlier dropped 9.2% to 72.6, the steepest of the index's five components. Homeowners' sentiment fell 13% in the month, versus a 0.6% rise among renters, a divergence Westpac linked to renewed strain in the housing market. Households anticipating higher mortgage rates over the coming year climbed to 64%, from 59% in August, and to roughly 73% among borrowers concentrated in outer suburban "mortgage belt" areas.

• Consumer Sentiment Index: down 5.2% to 84.4
• Mortgage Rate Expectations Index: up 7.3% to 170.4
• Unemployment Expectations Index: up 2.8% to 139.4
• NAB business conditions: down five points to -1, first negative reading in six years
• NAB business confidence: down two points to -8

NAB's survey told a parallel story on the corporate side. Profitability fell 10 points to -9, a level the bank described as a post-pandemic low, as the cost of goods businesses purchase continued to outrun what they could charge customers. NAB's head of Australian economics, Gareth Spence, said purchase costs rose 2.3% in quarterly terms in August while output prices grew just 0.8%, a gap he said had been widening for nearly six months. The deterioration in conditions touched six of the eight industries the survey tracks, led by construction, mining and manufacturing. On the S&P/ASX 200, financial stocks led Monday's retreat, down roughly 0.9%, with consumer staples and technology shares also lower even as energy and mining names were supported by gains in oil and copper prices, according to a live markets report from ABC News Australia. The index fell as much as 0.7% to about 8,951 points, its lowest level in six weeks.

A Fuel Bill and an Inflation Surprise

Two developments account for most of the shift, according to Westpac's economists: a jump in pump prices and a stronger-than-expected inflation reading. Local petrol prices climbed back above 2 Australian dollars a liter for the first time since April, a combination of firmer global energy prices and the scheduled unwinding of a temporary cut to the federal fuel excise. Average pump prices were up 6.7% since the August survey was taken and had risen by nearly a third since July, the bulletin noted.

That came on top of an inflation report that surprised economists to the upside. The Australian Bureau of Statistics reported that its monthly Consumer Price Index indicator rose 3.5% in the 12 months to July, down from 3.8% in June but above the roughly 3.2% economists had forecast. Trimmed mean inflation, a core measure the Reserve Bank of Australia watches closely, held at 3.6%, still outside the central bank's 2-3% target band. Automotive fuel prices alone rose 7.5% in July after three straight monthly declines. Those figures revived speculation that the Reserve Bank's cash rate, already raised to 4.35% in May after a run of stronger inflation and growth data, could rise again before year's end.

Who Is Affected

The most immediate exposure falls on mortgage holders, whose sentiment reading dropped 14% in September, and more heavily still among those anticipating further rate rises. Renters were comparatively insulated, and prospective first-home buyers pulled back sharply: the survey's "time to buy a dwelling" index fell 10.7% to 85.5, erasing a rally recorded the prior month, though expectations for house prices themselves held broadly steady. On the business side, the weakness was concentrated in construction, mining and manufacturing, sectors NAB said bore the brunt of the margin squeeze between rising input costs and stalled pricing power. Workers in construction and hospitality reported notably larger increases in job-loss concerns than the workforce as a whole, even though the survey's broader unemployment-expectations gauge remains well below levels reached during past downturns.

Both fuel prices and interest rates again look to be driving the move. It has likely also added to unease about the continued weakening in housing markets.

That assessment, from Westpac's bulletin, was echoed across the bank's commentary explaining why the mood shift arrived so soon after August's partial recovery.

A Split Among Forecasters

The renewed rate-hike anxiety among households and businesses is not fully shared by professional economists, whose forecasts have diverged noticeably from what traders are pricing into money markets. Following the July inflation data, a split emerged among Australia's largest banks: NAB, led by economist Sally Auld, and Deutsche Bank's Phil O'Donaghoe now expect the Reserve Bank to raise its cash rate to 4.60% at this month's meeting. ANZ, Commonwealth Bank, UBS and Goldman Sachs have instead pushed their expected timing for any further increase out to November, while Westpac has maintained a forecast of no additional hike this year. Money markets, as of Monday, were pricing a probability of roughly 54% for a September move, according to rate-tracking estimates cited in that survey of bank forecasts — a gap that traders and consumers appear to be reading differently, with household expectations for higher rates now more elevated than the professional consensus.

What Happens Next

The Reserve Bank's board is scheduled to meet on September 28 and 29, with any decision announced at 2:30 p.m. local time on the second day. Between now and then, additional labor-market and inflation data are due, any of which could tip the balance for a board that raised its benchmark rate as recently as May after a similar run of firmer price and activity figures. A further increase would mark the second of the year and would land directly on households already reporting diminished confidence in their own finances. A hold, by contrast, would leave the cash rate at 4.35% for a fourth consecutive meeting, a course Westpac's economists continue to expect through the remainder of 2026. Either outcome will be measured against a business sector that, per NAB's survey, has now spent a full month with conditions in negative territory for the first time since the pandemic's early months — a signal, more than a data point, that will likely keep both consumer and business surveys under close watch heading into the announcement.