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Australian mortgages — what makes them different?
Australia's mortgage market has some quirks that set it apart from most other developed countries. Understanding them helps you make better decisions when comparing loans.
The most significant difference: Australia is a variable-rate country. About 80% of Australian mortgages are on variable rates, meaning when the Reserve Bank of Australia (RBA) raises or cuts the cash rate, your repayments change — usually within a month. In the US and much of Europe, 30-year fixed rates are standard, insulating homeowners from rate movements. Australians have no such luxury.
Australia also has unusually high household debt relative to income. At around 185% debt-to-income, Australian households are among the most indebted in the world. This makes the property market highly sensitive to interest rate changes — as many borrowers discovered during the 2022–23 rate-hiking cycle.
- Offset accounts: A uniquely popular Australian product — a transaction account linked to your mortgage where your balance reduces the interest charged. Far more common here than overseas.
- Redraw facilities: Pay extra on your mortgage, then redraw those funds later. Widely available in Australia.
- P&I vs Interest Only: Most owner-occupiers use principal and interest. Investors often use interest-only periods to maximise tax deductions on the interest portion.