After an RBA cash rate decision, the borrowers who act within 48 hours consistently get better outcomes than those who wait. Call your existing lender first, ask for retention pricing, then compare against three market alternatives. On a $500,000 Perth home loan, a 0.25% movement equals roughly $79 a month, or about $28,000 over a 30-year term.
What Just Happened
The Reserve Bank of Australia sets the cash rate target eight times a year, but that decision does not automatically change your home loan repayment. Lenders choose whether to pass on a cut or hike in full, in part, or not at all. Most variable rate adjustments take one to two weeks to land in your account after a decision.
Fixed rates work differently. They reflect what wholesale money markets already expect the RBA to do over the next one to five years. By the time the Tuesday afternoon announcement happens, fixed rates have usually moved weeks earlier in anticipation. If the decision surprises the market, fixed rates can reprice within days.
According to the RBA cash rate target data, the cash rate is the benchmark, not the actual rate you pay. Your rate is set by your lender's funding costs, their margin, and how badly they want to keep or grow their book. That gap between the cash rate and your rate is where good broking pays for itself.
What It Means If You're On A Variable Rate
If you're on a variable rate, the question is not whether your lender will pass on the change. It's whether they will give you the best rate they offer to new customers today. Existing borrowers are routinely paying 0.30% to 0.80% more than new borrowers at the same lender. That gap is called the loyalty tax, and it is real.
Here's the three-step play after every RBA decision:
- Check your current rate. Log into your banking app or look at your most recent statement. Most Perth borrowers genuinely do not know their rate within 0.25%. You cannot negotiate from a blank slate.
- Ask for retention pricing. Call your lender's retention team (not the main line) and ask: "What is the best rate you can offer me today to stay?" Mention you're comparing the market. Lenders have discretionary discount pools specifically for this conversation.
- Compare against three market alternatives. Pull live rates from three other lenders, ideally a Big Four, a second-tier (Macquarie, Bankwest, ING) and a non-bank (Pepper, Firstmac, Resimac). If your lender will not match within 0.10%, the refinance maths usually works.
The script that gets results is short. "I've been with you for X years. I'm seeing rates of Y% in the market. What can you do?" Silence does the rest.
What It Means If You're On A Fixed Rate
Fixed rates do not move with RBA decisions. Your repayment is locked until your term ends. What does shift is the fixed rate market itself, because lenders constantly reprice their fixed offerings based on RBA signalling and bond yields. A surprise cut can knock 0.20% off advertised three-year fixed rates within a week.
Fixing makes sense when the cash rate cycle looks topped out and you value repayment certainty over the chance of catching further cuts. Fixing is dangerous at two specific moments: locking in at the peak of a tightening cycle just before cuts start, and locking in for too long when the curve is signalling reversals.
Break costs on a fixed loan can be significant if rates fall and you want out early. They are calculated on the difference between your fixed rate and the current wholesale rate, multiplied by the remaining term and balance. On a $500,000 loan with three years to run, breaking a fixed rate that has dropped 1% can cost $10,000 to $15,000. Think carefully before fixing for five years.
A split loan, part fixed and part variable, gives you certainty on half and flexibility on half. For most Perth borrowers worried about rate direction, the split is a calmer answer than going all-in either way. See more on the fixed vs variable decision.
What It Means If You're Rolling Off A Fixed Rate
This is the most urgent scenario after any RBA decision. If your fixed term ends in the next three to six months, you need a plan now, not when the letter arrives.
When a fixed loan rolls over, lenders almost always default you to their standard variable rate, which is typically the highest rate they charge. Borrowers on autopilot can see their repayment jump $400 to $800 a month overnight on a $500,000 loan. The lender is not obliged to roll you to the best rate. They will roll you to the rate that makes them the most margin.
The action plan with 3 to 6 months left on your fixed term:
- Request a written rate offer from your existing lender for what you'll roll onto. Get it in writing, not over the phone.
- Have a broker price the market for you in parallel. Refinances take four to eight weeks to settle, so you need lead time.
- Decide your structure before the roll, not after. Fixed again, variable, split, offset features, redraw, all of it.
- Lock in any new application before your fixed term ends, so settlement times with the cutover.
Specific Perth Numbers
The average Perth mortgage sits around $500,000, with newer borrowers in suburbs like Baldivis, Ellenbrook, and Alkimos often above $600,000. ABS housing finance data shows WA new lending commitments have grown faster than the national average, which means more Perth households are exposed to rate moves than in previous cycles.
On a $500,000 loan with a 30-year term:
- Each 0.25% rate change equals about $79 per month
- A 1.00% change equals about $315 per month, or $3,780 a year
- A 2.00% swing across a tightening cycle equals about $635 per month
On an $800,000 loan, those numbers scale to $126, $504 and $1,016 a month respectively. Run the exact figures for your balance through a mortgage repayment calculator before any rate conversation.
The 48-Hour Rule
After every RBA decision, lender call centres get flooded for about three days. The borrowers who call in the first 48 hours get through to retention teams faster, get more attention, and lock in discounts before pricing teams tighten the discretionary pool. By day five, retention agents have hit their daily quotas and the conversation gets harder.
The 48-hour window also matters because fixed rates can reprice quickly after an unexpected decision. If the RBA cuts more than the market expected, three-year fixed rates often drop within 72 hours. Borrowers who lock the day before the move catch the higher rate. Borrowers who call within 48 hours catch the dip.
When To Actually Refinance Vs Just Renegotiate
Renegotiate first. Refinance second. The cost of switching lenders is not zero. Expect $300 to $400 for discharge fees, $200 to $400 for the new lender's settlement and legal fees, $300 to $600 for a valuation if not waived, plus government registration fees of $200 to $300. Total switching cost typically lands between $1,500 and $3,500.
That cost has to be earned back through the lower rate. A 0.30% saving on a $500,000 loan is about $95 a month, or $1,140 a year. The refinance pays for itself in roughly 18 months. Anything under a 0.20% saving rarely makes sense to switch for. Anything over 0.40% almost always does.
Renegotiation has no cost. If your current lender will match within 0.10% of the best alternative, stay. ASIC's MoneySmart guidance on refinancing covers the comparison rate trap in detail. Read it before you sign anything. For the full Perth decision framework, see when refinancing makes sense for Perth borrowers.
Common Perth Mistakes After RBA Decisions
Assuming the cut was automatic. Lenders pass on cuts on their own timeline. Variable rate borrowers should verify the change has actually hit their account two to three weeks after the decision.
Not knowing your current rate. You cannot ask for a discount without a baseline. Check before you call.
Panic-locking fixed at the top of a cycle. When rates have been rising for a year and the headlines are loudest, that's usually the worst time to fix for five years. Fixed pricing already reflects the peak.
Forgetting offset and redraw. A 0.10% lower rate with no offset account often costs more than a 0.10% higher rate with a full offset, if you keep cash buffers in your account.
Comparing the advertised rate, not the comparison rate. Headline rates ignore fees. The comparison rate, regulated under the National Consumer Credit Protection Act, captures the real cost.
Refinancing without checking your borrowing power first. Serviceability buffers have tightened. The loan you got two years ago may not be the loan you qualify for today.
What CLS Does For You On Every RBA Decision
Same-day callback on decision day. We pull your current rate, run the retention-pricing script with your lender, and compare your position against 30+ lenders in our panel. If you stay, we get you the best rate available. If you switch, we manage the refinance end-to-end. Either way, you act in the 48-hour window. Talk to a Perth broker.
Meta description (155 chars): Perth borrowers, here's exactly what to do in the 48 hours after every RBA cash rate decision. Variable, fixed and roll-off action plans inside.
