What Is a Fixed Rate Home Loan?
A fixed rate home loan locks in your interest rate for a set period, typically one to five years. During this period, your interest rate does not change regardless of what happens to the official cash rate set by the Reserve Bank of Australia (RBA) or market conditions. Your repayments remain the same each month, making budgeting straightforward.
At the end of the fixed period, your loan typically reverts to the lender variable rate, which may be higher or lower than your fixed rate was. At this point you can re-fix, switch to variable, or refinance with another lender.
The trade-off for certainty is reduced flexibility. Fixed rate loans typically restrict extra repayments (often to $10,000 to $20,000 per year), generally do not offer a genuine offset account, and can attract significant break fees if you need to exit the loan during the fixed period, such as when selling your property or refinancing.
What Is a Variable Rate Home Loan?
A variable rate home loan has an interest rate that moves with the market. When the RBA raises the cash rate, variable rates typically increase. When the RBA cuts the cash rate, variable rates typically decrease. Your repayments change accordingly.
Variable rate loans offer considerably more flexibility than fixed rate loans. They typically allow unlimited extra repayments, come with access to a genuine 100% offset account, and can be refinanced or discharged without break fees. These features make variable rate loans the preferred choice for borrowers focused on paying off their loan as quickly as possible.
The trade-off is uncertainty. If rates rise significantly, your repayments increase. Borrowers need to be able to comfortably service a rate that is 2% to 3% higher than their current rate, as lenders are required by APRA to assess serviceability at a minimum 3% buffer above the actual rate.
Fixed vs Variable: Side by Side Comparison
The table below summarises the key differences between fixed and variable rate home loans in Australia to help you compare at a glance.
| Feature | Fixed Rate | Variable Rate |
|---|---|---|
| Rate certainty | Guaranteed for fixed term | Moves with market |
| Repayment flexibility | Low, repayments set for term | High, can vary |
| Extra repayments | Usually capped at $10,000-$20,000/yr | Unlimited (most lenders) |
| Offset account | Rarely available (or partial only) | Full 100% offset available |
| Break costs | Can be significant if you exit early | No break costs |
| Best for | Budget certainty, rate risk protection | Flexibility, maximum repayment |
The Split Loan Option
A split loan lets you have the best of both worlds, at least partially. You divide your loan into two portions: one on a fixed rate and one on a variable rate. For example, you might fix 60% of your loan for three years and leave the remaining 40% on variable.
The fixed portion gives you payment certainty on the majority of your debt. The variable portion allows unlimited extra repayments and access to a full offset account on that portion. This is a popular structure for borrowers who want some protection from rate rises but still want the ability to make extra repayments and use an offset account effectively.
The downside of a split loan is complexity. You have two rate review dates to manage, potentially two sets of fees, and the offset account only applies to the variable portion. Your broker can help model whether the split structure makes sense for your loan amount and goals.
When Does It Make Sense to Fix?
Fixing your rate makes the most sense when the following conditions apply:
- You are on a tight budget and need certainty about repayment amounts for planning purposes.
- You believe rates will rise significantly over the fixed period, and you want protection.
- You do not plan to sell or refinance during the fixed period, which would trigger break costs.
- You have minimal extra savings to park in an offset account, reducing the value of offset account access.
- You have already built a substantial equity buffer and are not focused on aggressively paying down the loan.
Fixing rarely makes sense if you plan to sell within three years, if you have large savings you would want in an offset, or if you are in a rate-cutting environment and locking in at the peak of a rate cycle.
What Are Rates Doing in Australia Right Now?
As of early 2026, the RBA cut the cash rate three times during 2025 but reversed course with a hike in February 2026, bringing the cash rate to 3.85%. With inflation picking up again, further hikes are possible, making the rate outlook uncertain.
In this environment, some borrowers are considering fixing to lock in certainty, while others prefer variable rates for flexibility. Predicting rate movements is genuinely difficult, even for professional economists. The right answer for your specific loan depends on your personal risk tolerance and financial circumstances.
The RBA publishes the current cash rate and historical decisions on their website. Your broker can provide up-to-date market rate comparisons across lenders.
How to Choose the Right Option
Ask yourself these questions to guide your decision:
- Do I need absolute payment certainty for budgeting? If yes, lean toward fixed.
- Do I have significant savings I want to park in an offset account? If yes, lean toward variable or split.
- Do I plan to make large extra repayments? If yes, lean toward variable (or at least include a variable portion).
- Am I likely to sell or refinance within the fixed term? If yes, stay variable to avoid break costs.
- Am I comfortable with the possibility of my repayments rising? If yes, variable is fine. If not, consider fixing at least part of your loan.
The most important step is to model the numbers with your broker or use our tool to compare rates. The right answer is specific to your loan size, income, savings, risk tolerance and plans for the property.
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