Australian Mortgage Trends
Understanding average loan sizes across Australia from 2015 to 2025
Track how mortgage sizes have evolved across all states and territories, with insights for first home buyers and property investors.
Average Loan Sizes Over Time
Interactive chart showing quarterly trends from June 2015 to June 2025. Click on the legend to show/hide specific states.
What This Means for Home Buyers
Understanding mortgage trends helps you plan your property purchase and set realistic expectations
Growth Trends
Over the past decade, Australian mortgage sizes have grown significantly:
- 10-Year Growth: Australian average increased by 88.5% from $390k to $735k
- 5-Year Growth: Increased by 45.3% since Mar-21
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Year-on-Year Growth by State:
NSW: 8.2% • Vic: 7.5% • Qld: 15.6% • SA: 12.0%
WA: 18.4% • Tas: 7.0% • ACT: 7.8% - This growth reflects rising property prices and increased borrowing capacity, but also highlights growing affordability challenges
Affordability Guide
What you need to know about deposits and income requirements:
- Average Deposit (20%): For the Australian average loan of $735k, you'd need approximately $184k in savings (includes deposit + costs)
- Income Guide: Banks typically lend 6x your gross annual income. For a $735k loan, you'd need approximately $123k annual household income
- Monthly Repayments: At 5.5% interest over 30 years, expect around $4,175/month (varies with interest rates)
- These are rough estimates. Actual borrowing capacity depends on your financial situation, credit history, and lender policies
Regional Differences
Why mortgage sizes vary significantly across Australia:
- NSW ($860k): Highest due to Sydney's premium property market and high median house prices
- ACT ($665k): High incomes and Canberra's strong public sector drive elevated loan sizes
- Tasmania ($521k): Lowest average reflects more affordable property prices and lower median incomes
- Queensland ($741k): Growing rapidly as people relocate from southern states seeking affordability
Market Insights
What these trends reveal about the Australian housing market:
- Sustained Growth: The consistent upward trend shows strong demand and limited supply driving property values higher
- COVID Impact: Sharp increases during 2020-2021 reflect low interest rates, remote work migration, and government stimulus
- Interest Rate Sensitivity: Slower growth in 2022-2023 coincides with RBA rate hikes cooling borrowing capacity
- Looking Ahead: Monitor interest rates, wage growth, and migration patterns to understand future mortgage trends
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