Inflation Just Hit 4.6%. Here's What Today's CPI Print Means for Your Mortgage
Inflation Just Hit 4.6%. Here's What Today's CPI Print Means for Your Mortgage
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29 April 2026
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The numbers landed at 11:30 this morning and they make for some uncomfortable reading. Australia's headline CPI rose 4.6% in the year to March 2026, up sharply from 3.7% in February and the highest annual reading since September 2023. Six days out from the next RBA meeting, that's a result that will reverberate through every variable rate home loan in the country.
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But before anyone panics, the detail tells a more nuanced story than the headline. Here's what actually moved, and what it likely means for the cash rate next Tuesday.
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What the data actually showed
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The headline figure of 4.6% is being driven heavily by one category: transport. Transport prices rose 8.9% over the year and a remarkable 9.2% in the month of March alone, almost entirely off the back of a 32.8% monthly jump in automotive fuel prices. That fuel spike pre-dates the halving of the fuel excise that took effect on 1 April, so April's print should look meaningfully different.
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The other big contributor was housing, up 6.5% over the year, with electricity costs alone running 25.4% above where they sat 12 months ago. That's largely the unwinding of the Commonwealth and State electricity rebates, which have rolled off and are no longer suppressing the headline number.
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The figure the RBA actually watches most closely, the trimmed mean, was unchanged at 3.3%. That's the measure that strips out the noisiest categories (like fuel) to give a cleaner read on underlying inflation. Still above the RBA's 2 to 3% target, but not accelerating.
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Why this matters for your loan
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The market had already been pricing in a 25 basis point hike at the 5 May meeting. Today's print arguably locks that in, but the more important question is what comes after.
A few quick takes on what the data means.
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The headline scare is partly noise. The fuel excise cut on 1 April will pull headline CPI back down in the next print. The RBA knows this. If they were going to overreact to the 4.6% figure with a 50 basis point hike rather than 25, they would have signalled it by now. They haven't.
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The trimmed mean is the bigger story. Sitting at 3.3% and not moving means underlying inflation is sticky but not running away. That's consistent with the RBA's "restrictive but not crisis" framing, and it supports the base case of a measured 0.25% hike on Tuesday rather than something more aggressive.
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Westpac's higher peak forecast just got more credible. Westpac has been tipping a 4.85% peak by August off the back of three more hikes. With underlying inflation refusing to come down, that scenario is harder to dismiss today than it was yesterday.
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What this means for repayments
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If the RBA does hike 0.25% on 5 May (and lenders pass it on, which they will), here's what it looks like in dollar terms.
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On a $600,000 loan over 30 years at a typical owner occupier rate, repayments would rise by roughly $90 to $100 per month.
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On an $800,000 loan, you're looking at around $120 to $130 extra per month.
On a $1 million loan, the increase pushes past $150 per month.
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Multiply that across the rest of the cycle if Westpac is right, and the total monthly increase from where you sit today could be $280 to $450 per month depending on your loan size. Worth knowing before you find out.
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What we'd suggest doing this week
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We're saying the same thing to clients today as we were yesterday, just more loudly.
Run the numbers on your current rate. If you haven't tested your interest rate against the current market in the last 12 to 18 months, today is the day to look. A 0.40% to 0.60% reduction in your rate (very achievable for many existing borrowers, especially those with strong equity positions) effectively cancels out the next two RBA hikes before they happen.
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Build the offset. Every dollar in offset is a dollar of your loan not accruing interest. In a rising rate environment, that lever gets more powerful, not less.
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Don't panic fix. Fixed rates have already been repriced upward in anticipation of further hikes, and many of the most attractive new fixed offers come with restrictions on extra repayments and offset functionality. A split structure (part fixed, part variable) can give you certainty on a portion of your loan without locking yourself out of any future cuts.
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If you're buying, get pre approval done now. Borrowing capacity is a moving target right now. Each 0.25% hike trims around $12,000 off an average earner's borrowing capacity, so locking in your current position with a pre approval gives you clarity going into a market that's increasingly uncertain.
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The bottom line
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Today's print is loud, but the underlying picture hasn't fundamentally shifted. Inflation is still sticky. The RBA is still likely to hike on Tuesday. And the borrowers who'll come through this cycle in the best shape are the ones reviewing their position now rather than reacting after the fact.
If you'd like a free review of where your loan sits against the current market, get in touch with the Claremont team. We'll give you a straight answer on whether it's worth doing anything, and if it isn't, we'll tell you that too.