Last week marked the first time in months that Australian lenders moved rates up more than down. Three lenders lifted five variable rates by an average of 0.09%, while only two cut seven rates by 0.12%. The shift is small in basis points but large in signal: banks are betting the mortgage rate floor sits higher than recent cuts suggested.
The average owner-occupier variable rate now stands at 6.62%, with just two products across the entire market sitting below 5.75%. The lowest advertised rate, 5.69% from a non-major lender, remains an outlier, not the new normal.
Why lenders turned
Banks don’t price on sentiment. They price on funding costs, default expectations and demand forecasts. Last week’s rate reversals follow three factors converging: core inflation stuck at 3.8%, the RBA’s August minutes repeating it will act if inflation doesn’t fall to forecast, and three of the four major banks’ economics teams now predicting at least one more rate hike this cycle.
That triple signal changed the calculus. Lenders who cut aggressively in May and June to win new business are now pulling back, pricing in the possibility that wholesale funding costs don’t fall as fast, or as far, as they anticipated two months ago.
The federal government’s property tax overhaul adds another layer. Higher holding costs for investors, combined with tighter credit conditions, reduce the pool of borrowers who can service larger loans. That shrinks the addressable market for new business, which removes one of the key incentives to keep cutting: volume.
Loan growth hits three-year low
The rate reversal coincides with the weakest home loan growth since July 2023. APRA data shows lending grew just 0.2% in July, the slowest monthly pace in three years. One major bank, NAB, recorded its first month-on-month contraction since mid-2024.
That stall isn’t a demand problem in isolation. It’s a credit supply constraint meeting lower borrowing capacity. Serviceability buffers require borrowers to prove they can service loans at rates 3% above the product rate. At 6.62%, that’s a test rate of 9.62%, higher than the actual peak rate most borrowers paid during the last hiking cycle.
The result: even as auction clearance rates improve in some cities, fewer buyers can borrow enough to act on that demand. Lenders aren’t rationing credit by policy, but by price and proof-of-capacity, which amounts to the same outcome.
Key numbers
- Average owner-occupier variable rate: 6.62%
- Lenders that hiked rates last week: 3
- Lenders that cut rates last week: 2
- Home loan growth in July: 0.2% (weakest since July 2023)
- Products below 5.75%: 2 across the entire market
The rate floor question
Mortgage rate cuts in May and June created an assumption: when the RBA eventually cuts, retail mortgage rates will follow quickly and deeply. Last week’s reversal tests that assumption.
If lenders believe their funding costs will stay elevated, either because the RBA holds longer or cuts less than the market priced in, then the gap between the cash rate and mortgage rates widens. That’s already happened: the spread between the cash rate (4.35%) and the average variable rate (6.62%) is 227 basis points, well above the pre-2022 norm of 180-200 basis points.
A higher spread means even a 0.25% RBA cut might only translate to a 0.10-0.15% retail cut, or less. Borrowers expecting mortgage relief to match RBA moves dollar-for-dollar will find the maths don’t work that way.
What could change this
Three scenarios shift the rate floor:
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Inflation falls faster than forecast. If core inflation drops below 3% in the September quarter, the RBA’s next move becomes a cut, not a hike. Lenders reprice down to compete for the borrowers who can suddenly afford more. Timeline: November CPI release would show this.
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Wholesale funding costs ease. If global bond yields fall, driven by a US slowdown or central bank pivots offshore, Australian banks’ marginal cost of funds drops. They pass some of that through to retain market share. Timeline: watch 90-day bank bill rates and 3-year swap rates over the next quarter.
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Competition intensifies. If loan growth stays weak, lenders may cut rates to defend volume even if funding costs don’t justify it. This is the least likely: banks have shown they’ll accept lower growth rather than erode net interest margins. Timeline: would show up in monthly APRA data if it happens.
The base case remains: rates drift sideways or tick up slightly until the RBA’s next definitive move, which the market now prices as late 2026 or early 2027.
What borrowers face now
If you’re looking to refinance or take out a new loan, last week’s reversal matters less than the serviceability test does. At current rates, your borrowing capacity is 15-20% lower than it would have been at 2021 rates, depending on your income and debts.
That compression hits hardest at the median: a household earning $120,000 can borrow roughly $580,000 today versus $680,000 in 2021, assuming similar deposit and debts. The rate you’re quoted, whether 5.99% or 6.29%, matters less than whether you can meet the 9.5%+ test rate the bank applies.
For existing borrowers on variable rates, the practical question is cash flow, not market timing. If your current rate sits above 6.5%, refinancing to a sub-6% product saves $200-300 per month on a $500,000 loan. That’s real money, even if rates don’t fall further.
Start here: check your current rate against the lowest available for your loan-to-value ratio and borrower type. If the gap is 0.3% or more, run the numbers on refinancing costs versus monthly savings. If you want weekly updates on rate movements and what drives them, subscribe to Australian Property Review.
Related: Adelaide home values fall hardest as credit squeeze hits mid-tier markets, Buyers market property investors face borrowing capacity squeeze.
General info, not financial advice.
