Rate Alert
The Reserve Bank of Australia has lifted the cash rate by 0.25 percentage points today, taking it to 4.60 per cent. It is the highest cash rate since late 2011 and the fourth increase this calendar year. The decision was unanimous across all nine members of the RBA Monetary Policy Board.
For homeowners with variable rate mortgages in South West Sydney, this is not an abstract number. It translates directly to higher monthly repayments, reduced borrowing power, and in many cases, a conversation worth having with your broker about whether your current loan structure is still the right one.
In its decision statement, the Board said inflation remains too high and that recent developments, including a broadening of the conflict in the Middle East and higher global energy prices, had made the environment more difficult. Headline inflation is running at 3.5 per cent annually and underlying inflation at 3.6 per cent, both above the RBA's 2 to 3 per cent target band.
The Board left the door open to further increases, stating it would raise rates again "if needed" to bring inflation sustainably back to target.
"The three increases in the cash rate target since the beginning of the year have tightened financial conditions and the economy appears to be slowing. But inflation is still too high and the Board judged that, in light of recent developments, a further tightening in financial conditions is warranted."
RBA Monetary Policy Board, September 2026 statement
BetaShares chief economist David Bassanese, cited by ABC News, said he now considers another 0.25% increase on Melbourne Cup Day (the first Tuesday in November) to be the base case, which would take the cash rate to 4.85 per cent.
Four rate rises in 2026 have added hundreds of dollars per month to a typical South West Sydney mortgage. The cumulative effect is now significant for households already stretched by cost of living.
Macquarie Bank has already announced it will increase variable home loan rates by 0.25 per cent, effective 15 October. The major banks are expected to pass on the full increase in coming days.
Here is what today's rise adds to monthly repayments on a standard principal and interest loan at current rates:
| Loan balance | Previous monthly (at 6.09%) | New monthly (at 6.34%) | Monthly increase | Annual increase |
|---|---|---|---|---|
| $500,000 | $3,031 | $3,111 | +$80 | +$960 |
| $650,000 | $3,940 | $4,044 | +$104 | +$1,248 |
| $800,000 | $4,849 | $4,977 | +$128 | +$1,536 |
| $1,000,000 | $6,062 | $6,222 | +$160 | +$1,920 |
These figures use a 30-year principal and interest term and assume the full 0.25% is passed on. Across the four rises this year, a borrower with an $800,000 variable mortgage has now absorbed approximately $580 more per month than they were paying in December 2025.
A rate rise of this scale is a sensible trigger to review your loan structure. Below are three approaches that may be worth discussing with your broker, depending on your circumstances.
Important: The strategies below are general in nature and are intended to illustrate options, not constitute financial advice. Every borrower's situation is different. See the disclaimer at the bottom of this article before taking any action.
If you are on a fully variable mortgage and concerned about the prospect of further rises, splitting part of your loan into a fixed rate provides a degree of certainty on that portion. For example: fixing $400,000 of an $800,000 loan at a current 3-year fixed rate (typically 5.89 to 6.10% at major lenders) leaves the remaining $400,000 variable. If rates rise another 0.25% to 0.50%, your exposure is halved. If rates eventually fall, the variable portion benefits. The tradeoff is that breaking a fixed rate contract early attracts break costs that can be substantial.
For investment property holders or homeowners under genuine cash flow pressure, converting a portion of the loan to interest-only reduces the monthly obligation on that tranche. On $200,000 at 6.59% interest-only, the monthly payment is approximately $1,098, compared to $1,277 on principal and interest. The $179 per month saving is real and immediate. The consideration is that you are not reducing your principal during the IO period, so the loan balance does not decrease. This is a short-term cash flow tool, not a wealth-building one, and is best used deliberately with a plan to revert to P&I.
Rate rises at your current lender are not automatic across all lenders. Some non-major lenders are pricing competitively to attract refinancers, particularly in the sub-80% LVR segment where LMI does not apply. A borrower with $800,000 outstanding and a property value of $1.1 million (72% LVR) has strong refinancing leverage. Even moving 0.20% to 0.30% lower on the base rate saves $133 to $200 per month on that balance. Combined with a loan structure review, refinancing can address both the rate and the structure in a single transaction.
The challenge with evaluating these options in isolation is that the numbers interact. A fixed-variable split changes your total monthly outgoing. An IO conversion changes your interest cost. Refinancing changes your base rate. Modelling them side by side is the only way to compare them meaningfully.
Compare up to three loan structures side by side. P&I vs I/O, fixed vs variable, any combination. See the monthly repayment and total interest for each scenario in real time.
Cotality data cited in the RBA's decision environment confirms that the four rate rises in 2026 have reduced average Australian borrowing capacity by approximately $90,000. For a household income of $140,000 in Oran Park or Campbelltown, that reduction moves the ceiling from roughly $860,000 to $770,000, which in the current Macarthur market is the difference between a townhouse and an entry-level detached home in some price brackets.
That said, property prices in South West Sydney have softened alongside the rate rises. The Cotality September 2026 report showed value declines across most Sydney segments, and the upper quartile has been the hardest hit. Entry-level and mid-market properties in the Macarthur corridor have held up comparatively better, and vendor discounts are available to buyers who are in a position to proceed. For pre-approved buyers who locked in approval before this rise, confirm with your broker whether the rate change affects your approval limit.
The Bureau of Statistics releases September quarter inflation data tomorrow. If the print comes in higher than expected, it will reinforce the case for the Melbourne Cup Day rise that BetaShares and others are now pricing in. If it comes in softer, the RBA may pause in November.
The RBA has been consistent: it will do what it considers necessary to return inflation to the 2 to 3 per cent band. Until inflation is sustainably within that range, variable rate borrowers should plan for rates to remain at current levels or move higher.
A 0.25% increase adds approximately $41 per month per $200,000 of outstanding loan balance. On a $700,000 loan, that is roughly $145 extra per month. Across the four rises this year, a borrower with a $700,000 variable mortgage has absorbed approximately $505 more per month than they were paying in December 2025.
Fixed rates are priced by lenders based on market expectations of where variable rates will go. If markets expect further hikes, fixed rates will already reflect that expectation in their pricing. Fixing is not automatically the right answer after a rate rise. The decision depends on your cash flow, how long you plan to hold the loan, and your risk tolerance. A broker can model a split structure where only part of your loan is fixed, which balances certainty against flexibility.
On a principal and interest loan, your repayment covers both the interest charged and a reduction of your principal, so the balance decreases over time. On an interest-only loan, you pay only the interest for a defined period (typically 1 to 5 years), and the balance stays the same. In a rising rate environment, IO repayments are lower because you are not reducing the principal, which can ease immediate cash flow pressure. However, when the IO period ends and the loan reverts to P&I, the repayments are calculated over the remaining term on the full outstanding balance, which can create a significant repayment increase at that point.
Disclaimer: This article is general information only and does not constitute financial, mortgage, or credit advice. The strategies discussed are illustrative and may not be appropriate for your individual circumstances, financial situation, or goals. Before making any changes to your loan structure, refinancing, or fixing your interest rate, you should speak with a qualified mortgage broker or financial adviser who can assess your specific situation. Mankin Finance Pty Ltd holds Australian Credit Licence 389087. Past performance of interest rates is not indicative of future movements.
If today's rate rise has you thinking about your loan structure, book a call with a Mankin Finance broker. We will model your specific numbers and identify whether restructuring, refinancing, or fixing part of your loan makes sense for you.
Book a free strategy call