Can interest rates rise despite slower household spending?
Interest rates can rise even when households are cutting back because the Reserve Bank of Australia (RBA) looks at demand and inflation across the whole economy. Slower household spending may help ease price pressures, but business investment, government spending and limits on what the economy can supply also matter.
The latest RBA minutes show that conflict. Household consumption growth had slowed, but business investment remained strong and inflation pressures were greater than the Board had expected.
For borrowers facing higher repayments, that can be difficult to reconcile. If households are already spending less freely, why might interest rates need to rise again?
Slower spending does not mean spending has stopped growing
A household cutting restaurant visits or postponing a holiday is reducing its spending. Across millions of households, however, some people may cut back while others spend more.
The national figures combine those experiences. ABS data shows household consumption increased 0.4% in the June quarter of 2026, with subdued spending across most categories. Spending was still growing, even though the pace was modest.
This matters when interpreting headlines. Slower spending growth can indicate that demand is cooling. It does not necessarily mean total spending is falling, or that inflation pressure has eased enough.
Household spending is not the complete picture
Households are a major source of demand, but businesses and governments also buy goods and services.
In the September meeting minutes, the RBA noted that private business investment had increased by more than 10% over the year. Investment growth was broadly based, with significant contributions from data centres and renewable energy facilities. Household consumption, meanwhile, had slowed to a below-trend pace.
These developments can occur together. Households may be restraining their spending while businesses continue investing in buildings, equipment and technology.
Households and businesses do not necessarily respond to higher interest rates at the same pace. Households may reduce discretionary spending as mortgage repayments rise, while businesses continue projects planned earlier or invest to meet expected demand.
That investment creates spending elsewhere in the economy. Building a data centre, for example, requires construction workers, electrical equipment, materials and specialist services. If those resources are already in short supply, competing projects may face higher costs.
Over time, investment can help businesses produce more or operate more efficiently. But the spending happens before those benefits are fully available. Demand can therefore increase before the economy’s ability to meet it improves.
This helps explain why household spending can slow while inflation pressures remain. The RBA assesses the combined effect of spending across the economy, alongside the resources available to meet that demand.
How do higher interest rates help bring inflation down?
Higher interest rates leave many borrowers with less money to spend after making their repayments. They also make new loans more expensive, which may encourage households to postpone purchases and businesses to delay projects.
Saving may become more attractive too. Someone receiving a better return on their savings may choose to keep money in the bank rather than spend it.
As demand eases, businesses may find it harder to raise prices without losing customers. This can help slow inflation over time. It does not mean prices will necessarily fall.
The effect is uneven. A household with a large variable-rate mortgage may cut spending quickly, while someone with little debt or substantial savings may feel less pressure. The RBA therefore looks at spending across the economy, rather than assuming that every household is responding in the same way.
There are limits to what higher rates can achieve. They cannot increase oil supplies or immediately resolve shortages of skilled workers. But they can reduce demand for goods and services while those shortages persist.
For example, higher fuel costs may increase a business’s delivery expenses. Whether it can pass the full increase on to customers partly depends on demand. If customers are buying less or choosing cheaper alternatives, the business may have less room to increase its prices.
That is the difficult trade-off. Higher rates may help contain price increases, but they do so partly by making spending and investment harder to afford.
Does slower spending indicate a cash rate cut?
Slower spending is one sign that higher rates may be working. But what is more important to assess is whether spending has slowed enough to bring inflation under control.
Imagine a business that is still receiving more orders than it can comfortably fulfil. Orders may be growing more slowly than before, but shortages of staff or equipment could still allow it to raise prices. A slowdown does not necessarily remove the pressure.
The same distinction applies across the economy. Household spending can ease while business investment remains strong, or while supply problems keep costs elevated.
The RBA also needs to judge whether inflation is easing for lasting reasons. A temporary fall in petrol prices may lower headline inflation without showing that price increases across other goods and services are slowing.
This is where the cash rate cycle becomes relevant. Rates may rise while inflation pressure persists, even after spending starts slowing. Once the RBA judges that enough tightening has been delivered, it can assess how the economy responds. Cuts require a further check: whether lower rates would be appropriate given inflation, employment and the outlook.
There is no fixed interval between those stages. Nor does reaching the peak mean rates will quickly return to their previous lows.
What could happen next for interest rates?
The current disagreement among economists is about whether the RBA has done enough, or whether inflation will require another increase.
ANZ’s assessment expects a November increase to be more likely than not, taking the cash rate to 4.85%. Its reasoning is that September-quarter underlying inflation will exceed the RBA’s forecast.
Westpac’s assessment also expects a November increase. It points to persistent energy costs and broader inflation risks, while noting that a significant improvement in the energy outlook could change its view.
CBA takes a different position. In a recent commentary, it continues to expect no further increase, but acknowledges a clear risk of another hike in November.
NAB also expects rates to remain unchanged, but sees a risk of further increases if inflation remains persistent.
The September inflation release on 28 October will provide another month of data and the September-quarter measures. Persistent underlying inflation would strengthen the argument for another increase. A broader easing in price pressures would give the RBA more reason to assess the effects of the increases already delivered.
Employment matters alongside inflation. If hiring, hours worked and employment weaken materially, that would add evidence that demand is slowing and increase the cost of further tightening. One monthly result, however, needs to be considered alongside the wider trend.
The September meeting minutes show that the Board remained concerned about inflation despite slowing household consumption. They also make clear that further increases remain possible.
For borrowers, two things matter: how higher rates affect their household budget, and whether economic conditions support lower rates. Many households are already feeling the pressure. Lower rates depend on inflation easing sufficiently and how spending, business activity and employment change.
