Who benefits from interest rate rises? One answer is a group the Reserve Bank rarely mentions: Australians who own their home outright. A hike takes money from people with a mortgage and hands part of it to people with savings, and the second group may well spend it.
That is the core of an opinion piece arguing that the latest expected rate rise will not bring inflation down. It is a contested view, and it is worth testing rather than accepting. The mechanics, though, are worth understanding whatever side you land on.
Rate rises move income around, they do not delete it
The textbook story is simple. Higher rates make borrowing dearer, households cut back, demand cools, inflation eases. The catch is who actually does the cutting back.
The argument puts it this way. Roughly a third of Australian adults have a mortgage. Another third own their home outright. Mortgage holders pay more each month. Outright owners earn more on term deposits.
In plain English
- A hike is a transfer, not a tax that vanishes from the economy.
- The people paying are concentrated in one group of households.
- The people receiving are a different group, and they may spend more freely.
That last point matters. The piece suggests outright owners are likelier to spend on discretionary items such as fuel. If so, the spending squeeze from higher repayments is partly offset elsewhere. We have no figure here for how large that offset is, and it is the key unknown.
The housing weight inside the CPI
The second objection is about how inflation is measured. Housing makes up close to 25 per cent of the CPI basket. Home prices are not counted, but rents and construction costs are.
That creates a loop worth spelling out:
- The cash rate rises, and landlords with loans face higher borrowing costs.
- Many lift rents to cover it.
- Tight vacancy means tenants have little room to push back, so the increases stick.
- Higher rents show up in the next inflation reading.
- A hot reading becomes the case for another hike.
In other words, the tool meant to cool prices can push up one of the biggest components of the measure it is chasing. We have covered the borrower side of this in our guide to the RBA, interest rates and repayments, and the policy debate in our look at whether falling home values already tighten conditions.
The alternatives on the table
The author does not just criticise. Two other levers are proposed, and both come with a cost.
- Lift the GST to 15 per cent. This would dampen spending broadly instead of hitting mortgage holders alone. It needs legislation and would be politically toxic, particularly for Labor, whose May budget measures on property investors already damaged its standing.
- Lift compulsory super from 12 per cent to 14 or 15. This would curb take-home spending while keeping the money in savings. It also needs legislation.
Neither is quick, and neither is easy. That is the real trade-off. The cash rate can move in a day. Fiscal levers take a parliament.
The catch
This is one opinion, and it leaves gaps. It does not quantify how much outright owners actually spend of their extra interest income. It does not address that higher rates also slow new borrowing and, over time, cool demand for housing and credit. Many economists would say rates work through several channels, not only household cash flow.
Supply is the other quiet piece. If construction costs and slow approvals keep new homes scarce, neither rates nor taxes fix the underlying shortage. The strain on borrowers is already visible, as our piece on mortgage arrears risk as the RBA nears another hike shows.
What this means if you hold a mortgage
If you carry a loan, you are in the group absorbing the policy. That does not mean the policy is wrong, but it does mean the burden is uneven. Treat a hike as likely to persist rather than a one-off, and check whether your buffer covers another rise.
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General info, not financial advice.
