Surge in Investor Mortgage Refinancing Across Australia

According to the Australian Bureau of Statistics, over 640,000 homeowners refinanced their mortgages last year, marking a 20% increase from the previous year. Notably, internal refinancing—where borrowers restructure or replace an existing loan with a new one from the same lender—saw the largest percentage increases. The value of these loans jumped by 37%, and the volume of lodgements increased by 26.8% over the past year.

Simon Birmingham, CEO of the Australian Banking Association, highlighted this surge as evidence of a highly competitive home loan market. He noted that the record numbers of mortgage holders refinancing demonstrate the wide variety of home loan options available to customers.

For investors, the December quarter of 2025 was particularly noteworthy. Seasonally adjusted data showed 15,664 internal investor refinancing loans were lodged, a 7.2% increase from the previous quarter and a 26.8% rise compared to the same period last year. These loans totaled $10.5 billion in value, reflecting a 9.2% increase on the previous quarter and a 37% increase on Q4 2024.

Several factors contribute to this trend. Competitive interest rates have made refinancing more appealing, allowing investors to secure better terms and reduce monthly repayments. Additionally, lenders are offering various incentives, such as cashback offers and fee waivers, to attract and retain customers.

However, investors should approach refinancing with caution. It's essential to consider potential break costs associated with ending a fixed-rate loan prematurely and to assess whether the benefits of refinancing outweigh these costs. Consulting with a financial advisor or mortgage broker can provide valuable insights tailored to individual circumstances.

In summary, the Australian mortgage market is experiencing a significant shift, with investors actively seeking better deals through refinancing. This trend underscores the importance of staying informed and proactive in managing mortgage commitments to optimize financial outcomes.