The RBA decision came at month-end
The RBA raised the cash rate by 0.25 percentage points on 29 September, to 4.60%, effective 30 September. ANZ, Commonwealth Bank, NAB and Westpac subsequently announced 0.25-point variable home loan increases effective 9 October. Those announced October changes are outside this September dataset and are not counted as September movements.
What this means for borrowers
For variable-rate borrowers, September’s largely steady pricing is a historical snapshot. It does not mean repayments will remain unchanged after the October increases. Check your lender’s notification for the rate, effective date and repayment that apply to your loan.
As an illustration, a $600,000 principal-and-interest loan with 30 years remaining would cost about $3,690 a month at 6.24%. At 6.49%, the estimate is $3,788—around $98 more each month. This assumes the full balance is outstanding, excludes fees and offset balances, and is not a prediction of a particular borrower’s repayment.
For borrowers considering a fixed rate, September shows why a quote needs a date. A rate seen earlier in the month may have changed before an application or settlement. Compare the fixed term, fees, repayment flexibility and what happens when that term ends, alongside the headline rate.
For anyone refinancing, compare like with like: owner occupier or investor, principal and interest or interest only, loan size and LVR. A lower advertised rate is only useful if the loan’s conditions and total cost suit the borrower.
What to watch nextOctober will show the variable-rate impact
The next report will test how the announced increases appear in advertised pricing, which lenders continue to discount selected loans, and whether fixed-rate changes continue. September’s results establish the starting point.
Sources and methodology
Rate Challenge analysed 23 supplied advertised-rate snapshots across 22 dates, from 1 to 30 September 2026. Opening and closing records were matched by lender, product, borrower and loan purpose, repayment type, rate type and fixed term, LVR and loan-size limits. The 9,770 matched records cover 101 lender and brand labels; 102 appear somewhere in the month.
Counts include separate product, purpose and eligibility variants. Lenders with more records have more influence; results are not weighted by loan balances or market share. A record absent at month-end is not automatically a withdrawn offer. Missing daily snapshots mean first observation dates are not verified effective dates.
The refinance benchmark uses explicit refinance records, principal-and-interest repayments, a $600,000 amount and an illustrative 75% LVR. Within the source 70%–80% group, consistent screening rules exclude conflicting LVR, deposit, loan-amount and fixed-term labels. Rates describe advertised observations, not approvals, negotiated pricing or rates paid by all households.
General information only. This report describes historical advertised market data. It is not personal financial advice, a lender recommendation or confirmation of product availability or eligibility.
Previous report: August 2026 home loan rate report