If you have a mortgage in Australia, today just got more expensive.
This afternoon the Reserve Bank of Australia raised the cash rate by 25 basis points, taking it from 3.85% to 4.10%. It's the second hike in a row, following February's increase — and it was a closer call than most people realise. The RBA's board voted five to four. A single vote separated you from another month of relief.
Governor Michele Bullock was direct about it: inflation is too high, demand is outstripping supply, and if the RBA doesn't act, the problem gets harder to fix later. The Iran war and $100 oil didn't cause this hike — but they made a complicated situation more complicated.
ANZ and NAB are already calling another hike in May.
So. What's actually going on? And why should you care beyond your mortgage repayment?
Let's Start With the Basics: What Central Banks Actually Do
The RBA is Australia's central bank. The US Federal Reserve is America's equivalent. Both do essentially the same thing: they try to keep the economy in balance — not too hot (which causes inflation) and not too cold (which causes unemployment).
Their primary tool is interest rates. Specifically, they control the rate at which banks borrow money from each other overnight. In Australia, that's the cash rate — now at 4.10%. In the US, it's the federal funds rate — currently sitting at 3.5–3.75%.
That number might sound technical. But it's the foundation of almost every borrowing cost in the economy — your mortgage, a business loan, credit card rates, and the return on your savings account. When the rate moves, everything attached to it moves too.
Both the RBA and the Fed have the same core mandate: keep inflation low and keep people employed. Right now, both are dealing with the same problem: inflation that won't behave.
Why Today's Hike Hits Differently
The RBA cut rates three times in 2025. Australians were starting to breathe again. Then February happened — a hike — and now today's follow-up.
Two rate hikes in the first quarter of 2026 mean average monthly mortgage repayments have risen by roughly $225, or about $2,700 a year — going a long way toward wiping out the relief from last year's cuts. Savings.com.au
The RBA board noted that inflation picked up materially in the second half of 2025, that capacity pressures are greater than previously assessed, and that the Middle East conflict has added fuel prices on top of an already elevated inflation picture. Reserve Bank of Australia
Importantly, Governor Bullock was clear that higher energy prices from the war weren't the primary reason for today's decision: the problem was already there. "Inflation was already too high, reflecting the fact that demand is outstripping supply." SBS
The war just made it worse.
Economists now expect the tightening cycle to continue beyond March, with the median forecast seeing the cash rate reaching 4.35% by the end of 2026. Investinglive That would be a third consecutive hike — something Australia hasn't seen since early 2023.
Meanwhile in America: The Fed Is Caught in the Same Trap
The US Federal Reserve is also meeting this week — today and tomorrow — and facing a mirror image of the same dilemma.
Coming into 2026, markets expected two or three rate cuts in the US this year. Inflation had been cooling, the labour market was softening, and the Fed had already cut 1.75 percentage points since late 2024.
Then the Iran war happened. Oil spiked. Traders have now taken even a September cut off the table, with markets pricing in just one cut — possibly in December — and nothing else until well into 2027 or 2028. CNBC
The Fed's problem is the classic central bank bind. Cut rates to support a weakening economy, and you risk stoking inflation further. Hold rates steady, and you risk the economy stalling. Some economists are now doubting the Fed will cut at all in 2026. TheStreet
Add one more layer: Jerome Powell's term as Fed Chair ends in May. His likely successor, Kevin Warsh, has been nominated by President Trump — and the direction the world's most powerful central bank takes under new leadership is genuinely uncertain.
What Rate Moves Actually Do to Your Investments
When rates rise, a few things happen reliably:
Growth stocks — particularly high-multiple tech names — tend to struggle. Their valuations are based on future earnings, and future earnings become less attractive when the discount rate goes up.
Cash and short-term bonds actually become worth holding again. Something that wasn't true for most of the last decade.
Property gets squeezed. Higher mortgage rates mean fewer buyers, which moderates price growth. It doesn't mean prices crash — but the easy gains slow down.
The Australian dollar may soften further if global risk appetite drops and investors rotate toward USD-denominated assets. A weaker AUD makes imported goods — including oil — more expensive, which feeds back into the inflation the RBA is trying to fight. A frustrating loop.
For long-term investors, though, the core truth doesn't change. Rate cycles are exactly that — cycles. The RBA cut three times in 2025. It's hiking now. At some point, it will cut again. The businesses in your portfolio that are genuinely good don't stop compounding because the cash rate moved 25 basis points.
Key Takeaway
Today's RBA hike isn't just a mortgage story — it's a window into the global moment we're in. Central banks that were cutting rates as recently as last year are back on the other side of the table, fighting inflation they thought was under control. The Iran war turbocharged a problem that already existed domestically. If you're an Australian investor, the relevant questions are: how is your portfolio positioned in a higher-for-longer rate environment, and are you holding assets that benefit from it — or fighting it? Understanding the environment isn't panic. It's preparation.
That's the compound. That's the chill.
— ToNI NG.
This newsletter is for informational purposes only and does not constitute financial advice.
