Australian Mortgage Rates — 2025
Australian mortgage rates in 2025 range from 5.9% to 7.2% for most lenders following a series of RBA decisions. Even a 0.5% rate difference on a $650,000 loan means approximately $200 more per month over 30 years — making rate comparison essential before committing to any lender.
| Loan Type | Typical Rate (2025) | Monthly ($600K, 30yr) |
|---|---|---|
| Variable Owner-Occupier (P&I) | 6.0–6.5% | $3,597–$3,799 |
| 2-Year Fixed Rate | 5.8–6.3% | $3,520–$3,726 |
| 5-Year Fixed Rate | 6.0–6.5% | $3,597–$3,799 |
| Investment Variable | 6.4–7.0% | $3,752–$3,994 |
Fortnightly vs Monthly Repayments
Switching from monthly to fortnightly repayments is one of the simplest strategies to pay off your Australian mortgage faster. Making 26 fortnightly payments per year is mathematically equivalent to making 13 monthly payments — one extra full payment each year. On a $650,000 loan at 6.25% over 30 years, this saves approximately $85,000 in interest and reduces the loan term by close to 4 years.
APRA Serviceability Buffer
The Australian Prudential Regulation Authority (APRA) requires all lenders to assess mortgage applicants at the loan rate plus an additional 3% serviceability buffer. If you apply for a loan at 6.25%, lenders must confirm you can afford repayments at 9.25%. This buffer significantly limits borrowing capacity compared to rates alone would suggest. For every $100,000 borrowed, expect repayments of approximately $600–$700 per month depending on rate and term.
Offset Accounts — The Underrated Strategy
An offset account is a transaction account linked to your mortgage where every dollar reduces the interest calculated on your loan balance. With $50,000 in offset against a $650,000 loan, you only pay interest on $600,000 — saving approximately $3,125 in interest annually at a 6.25% rate. Unlike extra repayments, the money remains accessible. Most Australian variable rate mortgages include or offer offset accounts.