When the RBA moves, your mortgage moves.
The cash rate is the single number that gets the most attention in Australian financial news, and the one that most directly reaches your bank account. Here's what it actually is, why the RBA targets it, how it gets to your mortgage, and what to do with the knowledge.
What the cash rate actually is
Banks in Australia keep accounts at the Reserve Bank of Australia. They use these to settle payments with each other at the end of each day — you transfer money to your friend, your bank ends the day owing their bank, and that gets sorted overnight through these RBA accounts.
Sometimes a bank ends the day short and needs to borrow. Sometimes it ends the day long and can lend. The interest rate banks charge each other for these overnight loans is the cash rate. It's a wholesale interbank rate, not a rate any retail customer ever sees directly.
The RBA sets a target for this rate. They don't fix it by decree — they nudge it to the target by managing how much money is sloshing around in those settlement accounts. Add more liquidity and the rate falls; drain liquidity and it rises. The cash rate target is the lever, the actual cash rate is the result.
Why the RBA targets it at all
The cash rate is the RBA's primary tool for influencing the economy. By making borrowing cheaper or more expensive across the system, the RBA can speed up activity (cut rates) or cool it down (raise them). The aim is to keep two things in balance: inflation in the 2–3% target band, and full employment. This is known as the dual mandate.
The Monetary Policy Board meets eight times a year — every six weeks or so — and announces a decision at 2:30 PM AEST on the second day of each meeting. The Governor holds a press conference an hour later. Four times a year, alongside the February, May, August and November meetings, the RBA also publishes its full Statement on Monetary Policy — detailed forecasts and analysis explaining the Board's thinking.
Decisions are made by majority vote and aren't always unanimous. A 5–4 split is unusual but not unheard of. The minutes published two weeks after each meeting can reveal genuine disagreement among Board members.
How does it actually reach your mortgage?
The RBA doesn't set your mortgage rate. Your bank does. But the cash rate is the dominant input — it shapes what banks pay for the money they then lend to you.
Australian banks fund their loan books from a mix of deposits, wholesale debt, and equity. The price of all of those is influenced by the cash rate (most directly), the global capital markets, and the bank's own credit standing. Banks then add a margin on top — to cover operating costs, regulatory capital requirements, expected loan losses, and a profit. That margin plus the cash rate gives you, roughly, the rate you pay.
For most of 2026, with the cash rate sitting around 4%, average owner-occupier variable rates have been roughly 6.0–6.5%. The spread above the cash rate has been around 2.0–2.5%. It's not constant — it widened sharply during the COVID era and has narrowed somewhat since.
The signal hiding in the number
The cash rate isn't just a price. It's also a signal about how the RBA reads the economy. When the Board hikes, they're saying: inflation pressure is meaningful enough that we want to slow things down. When they cut, they're saying: activity needs support, and inflation is contained enough that we have room.
That signal matters even before any rate change reaches your mortgage. Markets price in expected future moves; share prices, the Australian dollar, business investment decisions, and even property auctions all shift on the day of a decision, sometimes more sharply than the rate change itself would warrant.
Bond markets are particularly revealing here. The yield on a 10-year Australian government bond reflects what the market thinks the average cash rate will be across the next decade, plus a small risk premium. If 10-year yields are climbing while the cash rate sits still, the market is telling you it expects higher rates ahead.
You don't need to be a trader to use this. Just knowing that the cash rate is a forecast as much as a price helps you interpret what financial news is actually saying.
What this means if you have a mortgage
The honest summary
The cash rate is a wholesale interbank rate that almost nobody borrows or saves at directly, yet it shapes nearly every other interest rate in the economy through the chain that ends at your monthly repayment. Eight times a year the RBA decides where it sits, weighing inflation against employment and the lag with which their decisions actually bite.
Borrowers feel rate changes most sharply, which is why mortgage holders pay close attention to the announcements. But the cash rate also matters to savers, to anyone planning a major purchase, and to anyone trying to read the economic weather. Knowing how it works doesn't let you predict the next decision — even the RBA itself doesn't claim certainty about that — but it does let you understand what the news is actually saying when the rate moves.
The widget above can show you what a 0.25% or 1.0% move would do to your specific loan. Knowing that — concretely, in dollars per month — is the foundation for a calmer reaction to whatever the Board decides next.