Equifax Australian Mortgage Debt Index

House price headlines only tell half the story. The Equifax Australian Mortgage Debt Index looks at what happens before the sold sticker - tracking the average dollar amounts everyday Australians are seeking to borrow to make their homeownership dreams come true. The index observes how market shifts, economic pressures and policy introductions can impact the amount of mortgage debt Australians are willing to take on over time, across regions and age demographics.

Index Data Status — Last Updated: 30/09/2026
Next Data Refresh Target: January 2027
Quarterly Refresh Cycle
AVERAGE MORTGAGE ENQUIRY AMOUNT
$776,500 (2026 Q3)
NATIONAL | TOTAL MARKET | ALL AGES

Highest and Lowest Mortgage Enquiry Amounts Across Regions

Localised breakdown of mortgage enquiry values across states and territories.

MOST RECENT QUARTER: 2026 Q3

Top 5 Highest Average Mortgage Enquiry $

Region State Avg Request Size

Lowest 5 Average Mortgage Enquiry $

Region State Avg Request Size

Interested in learning more, or have a question?

Get in touch with us or subscribe to our newsletter using the buttons below. For media enquiries please email [email protected].

Contact us Subscribe to newsletter

About the Equifax Australian Mortgage Debt Index

The Equifax Mortgage Debt Index measures the average enquiry dollar value of mortgage applications that go through the Equifax Consumer Credit Bureau by financial services credit providers in Australia. Credit applications represent an intention by consumers to acquire credit and in turn spend; therefore, the index is a lead indicator of the amount of mortgage debt Australians are taking on.This differs to other market measures published by the RBA which measure credit provided by financial institutions (i.e. balances outstanding). Equifax uses the ABS definition of Statistical Areas Level 3 (SA3) in the region breakdowns of the top 5 average and lowest 5 average and mortgage enquiry chart ($) tables.

In the Index Equifax defines a First Home Buyer as an application from an individual who has not had a mortgage account previously.

In the Index Equifax identifies a potential investor versus owner-occupier mortgage holders using a data-driven proxy. This classification is based on individuals who hold two or more mortgage accounts, or opened a new mortgage account without updating their residential address within four months of the account opening. While this provides a highly indicative view of regional investment trends and market dominance, it should be noted that it is a proxy methodology.

DISCLAIMER

The information in this Index does not constitute legal, accounting or other professional financial advice. The information may change, and Equifax does not guarantee its currency or accuracy. To the extent permitted by law, Equifax specifically excludes all liability or responsibility for any loss or damage arising out of reliance on information in this release and the data in this report, including any consequential or indirect loss, loss of profit, loss of revenue or loss of business opportunity.

Copyright © 2026 Equifax Australia Information Services and Solutions Pty Ltd. All rights reserved. ABN 26 000 602 862