Three Rate Rises in 2026: What the RBA’s 4.35% Cash Rate Actually Means for Your Mortgage
The RBA has lifted the cash rate to 4.35% across three hikes in 2026. Here’s what it means for your repayments, your borrowing power, and what a Perth homeowner should do about it.
Most people spent 2025 waiting for rate cuts. Instead, 2026 has delivered the opposite: the Reserve Bank has taken the cash rate from 3.60% to 4.35% across three increases, and it has kept an explicit tightening bias. The next decision lands on 11 August 2026, and the June quarter inflation figures on 29 July will largely decide it.
If you have a mortgage, this is not background noise. Here’s what it actually does to your position — and what you can do about it.
What it means for your repayments
Lenders pass the cash rate through to variable rates within weeks. A 0.75% increase across the year on a $600,000 variable loan over 30 years works out to roughly $260–$280 more per month — around $3,200 a year out of your after-tax income.
If you were already stretched, that’s the difference between comfortable and not. If you fixed at a low rate two or three years ago and that fixed term is expiring in 2026, the step-up will be considerably sharper than a single hike, because you’re absorbing the entire cycle at once.
Action: find your fixed rate expiry date. Put it in your calendar. Then talk to us three months before it, not the week after it rolls off.
What it means for your borrowing power
This is the part people miss. Under APRA’s rules, lenders must assess whether you could still afford the loan if rates were 3 percentage points higher than the rate you’re actually offered. That buffer hasn’t changed — but the rate it sits on top of has.
The practical effect: this year’s tightening has stripped roughly $36,000 of borrowing capacity from an average single earner, and around $72,000 from a dual-income couple. Same job, same savings, same expenses — you can simply borrow less than you could in January.
If you were pre-approved earlier this year, your pre-approval may no longer reflect what you can actually borrow. Get it re-run before you bid on anything.
What the banks are saying about what comes next
Forecasts are genuinely split, which tells you something about how uncertain this is. Westpac has been tipping further tightening toward a peak around 4.85%. NAB, ANZ and CBA have been calling a hold. No major bank is forecasting a near-term cut.
Nobody knows. Which is the point: don’t build your household budget around a rate cut that may not come.
What to actually do
1. Stress-test your own repayments. Not at today’s rate — at today’s rate plus 1%. If that number frightens you, act now while you still have options, rather than in six months when you don’t.
2. Check what rate you’re actually on. Lenders reserve their sharpest pricing for new customers. Existing borrowers on a variable rate quietly drift 0.30–0.80% above what the same lender is offering someone walking in the door today. On a $600,000 loan, half a percent is about $190 a month.
3. Get your offset working. Every dollar sitting in an offset account is a dollar you’re not paying interest on — and the higher rates go, the more each dollar is worth. See Offset vs Redraw: Which Actually Saves You More?.
4. Don’t panic-fix. Fixing is insurance, not a bet. Whether it makes sense depends on your circumstances, not on a headline. See Fixed, Variable or Split in 2026.
5. Reconsider refinancing — carefully. Refinancing can save you real money, but the same serviceability buffer that shrank your borrowing power can also make it harder to qualify with a new lender than it was two years ago. This is exactly where a broker earns their keep. See Refinancing in 2026.
Frequently asked questions
Will my repayments go up automatically? If you’re on a variable rate, yes — your lender will notify you, usually with a few weeks’ notice. Some lenders extend your loan term instead of raising the repayment. That’s not free; it means more interest over the life of the loan.
Should I fix my rate now? There’s no universal answer. Fixed rates already price in expectations of future moves, so you rarely “beat” the market. What fixing buys you is certainty. Whether certainty is worth the trade-offs depends on your cash flow, your plans, and your tolerance for surprises.
Can I do anything if I can’t afford the new repayment? Yes, and the worst thing you can do is nothing. Options include hardship arrangements, restructuring, extending the term, or refinancing. Every one of them works better when you start early. Call us.
Book a free assessment. We’ll review your current rate, tell you what you’d be offered as a new customer today, and show you the gap. It costs you nothing.
Managing Director and Principal Finance Broker at Purpose Finance, helping Australians into homes with honest, plain-English advice.