Australian home owners with variable-rate mortgages will start paying more this week. The country's four biggest banks will raise their variable home loan rates by 0.25 percentage point from Thursday, 9 October, passing on in full the Reserve Bank of Australia's (RBA) latest increase.

"Interest rate" was among the most-searched terms in Australia this week, with more than 10,000 searches, according to Google Trends data viewed by NDNews.

The rise comes as home values fall for a sixth month in a row. Here is what borrowers need to know.

The rate rise

On 29 September the RBA raised its cash rate target by 0.25 percentage point to 4.60%, its fourth increase of 2026, according to the RBA. The cash rate is now at its highest level since 2011, ABC News reported.

The big four banks responded within hours:

Lender Change to variable home loan rates Effective date
Commonwealth Bank +0.25 point 9 October
Westpac +0.25 point 9 October
NAB +0.25 point 9 October
ANZ +0.25 point 9 October
Macquarie +0.25 point 15 October

Sources: ABC News, Savings.com.au.

For context on how the RBA's move compares with other central banks in the region, see our APAC central bank rates tracker.

How much more will borrowers pay?

The exact increase depends on the size and terms of each loan. Some examples:

  • Westpac estimated that the rise adds about A$79 a month to repayments on a A$500,000 principal-and-interest loan, according to Savings.com.au.
  • Comparison site Finder estimated that this hike costs the average borrower about A$1,359 a year (A$113 a month) on an average loan of about A$730,700, according to Finder.
  • After the rise, the average variable rate for owner-occupiers will be about 6.49%, according to Canstar.

Borrowers on fixed-rate loans are not affected until their fixed term ends.

Why it hurts more than in 2011

Rates were last this high about 15 years ago, but loans are now much larger. The average first-home-buyer loan is about A$731,000, compared with about A$281,100 in 2011, according to SBS News.

"Any given increase in interest rates has much more of an effect than it did 15 years ago," Professor Richard Holden of UNSW told SBS News.

Australia's policy rate is now among the highest in the developed world. Of 41 advanced economies, only Iceland has a higher policy rate, SBS News reported.

Treasurer Jim Chalmers pushed back on international comparisons. "If you want to make a comparison with other countries and other economies, you need to acknowledge that growth here is faster than a lot of other economies," he said, according to SBS News.

Why the RBA keeps raising rates

The RBA is trying to bring down inflation, which has picked up again. Annual inflation measured by the monthly consumer price index rose to 4.0% in August, from 3.5% in July, according to the Australian Bureau of Statistics. The trimmed mean, a measure of underlying inflation, was 3.6%.

Among the biggest drivers were electricity prices, up 13.2% after Commonwealth electricity rebates ended, and fuel, up 13.5%. Fuel prices rose because of higher world oil prices and the unwinding of federal fuel excise relief in August, the ABS said. The RBA has pointed to the conflict in the Middle East and disruptions to global oil supply as drivers of higher energy prices. NDNews covered the wider impact in our report on how the Iran war is hitting Asia's economies.

House prices are falling

At the same time, home values are sliding. National home values fell 1.1% in September, the sixth monthly decline in a row, according to Cotality's Home Value Index. Values fell 3.7% over the quarter and were unchanged from a year earlier. The national median value was A$899,236.

City Change in September
Sydney −1.4%
Melbourne −0.7%
Brisbane −1.5%
Adelaide −1.3%
Perth −1.2%
Hobart −0.5%
Canberra −1.1%
Darwin +0.4%

"97% of capital city suburbs were down in value over the three months to end of September, highlighting the broad-based scope of this negative housing cycle," said Tim Lawless, Cotality's research director.

For recent buyers, falling prices reduce the equity in their homes, which can make it harder to refinance.

Is the financial system at risk?

The RBA says most borrowers can cope. In its Financial Stability Review on 1 October, it said: "Most Australian households with mortgages remain well placed to manage more difficult conditions, even if housing prices were to fall sharply," according to the RBA.

The review said the financial system has a good degree of resilience, but warned that global and operational vulnerabilities continue to build. It named risks including geopolitical tensions, global market vulnerabilities, artificial intelligence and disruption at critical service providers.

What borrowers can do

  • Check the new repayment amount. Banks will notify customers, and most lenders have online calculators.
  • Use offset and redraw buffers if you have them.
  • Compare rates. Some lenders may offer better deals to new customers or for refinancing.
  • Talk to your lender early if you are struggling. Banks have hardship options. Canstar warns that switching to interest-only payments or extending the loan term can raise the total cost of the loan.

This is general information, not financial advice. Borrowers should consider their own situation or speak with a licensed adviser.

Dates to watch

Date Event
9 October Big four variable rate rises take effect
13 October Minutes of the RBA's September meeting
15 October Macquarie rate rise takes effect
28 October September monthly CPI (ABS)
3 November Next RBA interest rate decision

Key numbers

  • 4.60%: RBA cash rate, the highest since 2011
  • 0.25 point: rise in big four variable rates from 9 October
  • About A$79 a month: extra repayment on a A$500,000 loan (Westpac estimate)
  • −1.1%: fall in national home values in September, the sixth monthly fall
  • 4.0%: annual inflation in August

This article was researched with AI assistance and reviewed by the NDNews editorial team. It is based on official releases and media reports as of 6 October 2026. It is not financial advice.