The number of lenders offering at least one variable home loan rate below 6% has jumped to 49, up from 38 in early June. That’s 60% of lenders tracked by Canstar now advertising at least one product starting with a five, even as the central bank keeps rate hikes on the table at today’s policy meeting.
Thirty-one lenders have cut new-customer variable rates since June began. The lowest advertised rate sits at 5.69%, with a further eight lenders clustered between 5.74% and 5.84%. All four major banks now forecast the cash rate has peaked, but none have joined the sub-6% club yet.
Why lenders are cutting when the RBA isn’t
This is a market-share fight playing out in real time. Smaller lenders and non-banks are using price to pull volume from the majors, who still hold roughly 80% of outstanding mortgages. Funding costs have eased slightly as term deposit competition cooled and wholesale markets stabilised, creating room to sharpen advertised rates without blowing out net interest margins.
The timing matters. Refinancing activity typically picks up when borrowers sense the peak is near, and lenders want to lock in customers before sentiment shifts further. The gap between what existing customers pay and what new customers can access has never been wider, which makes the back book a sitting target.
The refinancing arbitrage
Canstar estimates a borrower who took out a loan five years ago and never renegotiated is likely still paying around 6.97%. For someone with a $600,000 balance and 25 years remaining, refinancing to a sub-6% variable rate saves at least $10,592 over two years, even after $1,150 in switching costs.
That’s a 98-basis-point spread between legacy pricing and the sharpest new rates. The majors are defending their books with case-by-case retention offers, but the smaller lenders betting on volume are winning enough customers to justify the margin squeeze.
Key numbers
- 49 lenders now offer variable rates below 6%, up from 38 in early June
- Lowest advertised rate: 5.69% (owner-occupier, principal and interest)
- Estimated savings from refinancing a $600k loan at 6.97% to sub-6%: $10,592 over two years
- Forecast cash rate cuts from the big four: 2-3 cuts starting mid-2027
The central bank tension
The RBA meets today with core inflation still at 3.6%, well above the 2-3% target band. Two weeks ago, the central bank made clear the board would have difficult decisions to make if inflation doesn’t come down, leaving rate hikes explicitly in play. Three more meetings are scheduled before year-end.
Yet all four major banks now forecast cuts starting in the second half of 2027, with CBA and Westpac pencilling in the first move by August next year. The lenders pricing below 6% are effectively betting that view is correct, or that they can sustain the margin hit long enough to build scale before funding costs rise again.
Risks that could close the gap
If inflation stays sticky and the cash rate moves up instead of holding, wholesale funding costs will reprice fast. Lenders that cut too aggressively now would face a choice: pass the increase straight through to variable-rate customers (killing the competitive advantage) or wear the margin compression (which works only if you’re big enough or funded differently).
Serviceability buffers also matter. If the cash rate rises, some of the borrowers who qualified at 5.7% won’t requalify at 6.2%, which slows refinancing flow and leaves the expensive back book locked in place longer. The lenders betting on volume need that flow to justify the pricing.
Trade-offs for borrowers making a call now
Refinancing to a sub-6% variable rate today locks in savings while the offers last, but leaves you exposed if rates move higher. Splitting the loan between fixed and variable, or taking the variable rate but keeping repayments at the old level to build a buffer, reduces that risk.
If you haven’t contacted your current lender in the past 12 months, check what rate they’re offering new customers. If it’s 40-plus basis points lower than what you’re paying, that’s your starting point for a retention conversation. If they won’t move, the 49 lenders below 6% will.
For investors or upgraders with equity to deploy, the question is whether to lock in cheaper debt now or wait for confirmation the RBA is done. The four-bank consensus says cuts start mid-2027, but core inflation hasn’t moved in six months, which means the risk is still two-way. If you’re refinancing to improve cashflow or serviceability today, the sub-6% variable rates are the lowest you’ll see until cuts actually arrive.
What happens next
Today’s RBA decision will clarify whether the board sees inflation risks easing or intensifying. If the statement softens, expect more lenders to join the sub-6% club within weeks. If it stays hawkish, the current pricing is as good as it gets until data turns.
The majors have held off so far because they don’t need to chase volume and their funding costs haven’t fallen as much as the challengers’. But if deposit competition heats up again or if one of the big four blinks and cuts to defend share, the floor could drop further. Watch deposit-rate movements and broker flow data over the next month.
If you’re deciding whether to refinance now or wait, model it both ways: what you save at today’s rates versus what you’d save if cuts arrive in mid-2027 as forecast. The break-even timeline is shorter than most borrowers expect, especially if you’re still paying close to 7%. Equity release lending has already surged as households stretch to cover rising costs, refinancing to a lower rate is the less-risky version of that trade.
Start here: compare your current rate against the sub-6% offers, calculate the two-year saving after switching costs, and make the call based on cashflow need today versus rate-cut probability tomorrow. If the saving covers 12+ months of the margin risk, refinance now. If it’s marginal, wait for the next RBA meeting.
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General info, not financial advice.
