Fixed vs variable rate home loans: which is better in 2026?

What a fixed-rate loan is

A fixed rate home loan locks in your interest rate for a set period, typically 1, 2, 3, or 5 years. During this fixed period, your interest rate (and therefore your monthly repayments) remain the same regardless of what the Reserve Bank of Australia (RBA) does with the official cash rate.

After the fixed term expires, the loan typically reverts to the lender’s standard variable rate, often a higher rate than comparable variable products. At this point, you can choose to refix, refinance to a new lender, or move to a variable rate.

Fixed rate loans are priced by lenders based on their expectations of where interest rates will move over the fixed period, incorporating wholesale funding costs, competitive pressure, and rate expectations. Fixed rates are often not directly linked to the current RBA cash rate.

What a variable-rate loan is

A variable rate loan has an interest rate that can change over the life of the loan. The most common driver of variable rate changes in Australia is the RBA’s monthly cash rate decision, when the RBA raises or lowers the cash rate, most lenders pass on the change (in full or in part) to their variable rate borrowers.

Variable rates are the “default” loan type in Australia. The majority of Australian mortgage holders have variable rate loans, and the variable rate market is highly competitive, meaning variable rates can be significantly lower than fixed rates when lenders are competing for business.

Pros and cons of fixed rates

The limitations on extra repayments and offset accounts are particularly significant for Australian borrowers who actively use offset accounts as a cash management tool. If you keep significant savings in an offset account to reduce your effective interest cost, a fixed loan may not suit your structure at all.

Pros and cons of variable rates

The offset account advantage of variable loans is significant for many borrowers. An offset account is a linked transaction account where the balance offsets against your loan balance for interest calculation purposes. If you have a $600,000 loan and $50,000 in an offset account, you only pay interest on $550,000, effectively earning your mortgage rate on your savings, which is considerably better than a savings account in most rate environments.

Split loans: the best of both worlds?

A split loan divides your mortgage into two portions: one fixed and one variable. This is the most common approach for borrowers who want rate certainty on part of their loan while maintaining flexibility on the rest.

Example: on a $700,000 loan, you might fix $400,000 at 5.89% for 3 years and keep $300,000 on a variable rate with full offset capability. This approach:

• Locks in certainty on the majority of your loan
• Maintains the offset account benefit on the variable portion
• Allows extra repayments on the variable portion without penalty
• Reduces (but does not eliminate) the impact of rate movements in either direction

The split can be in any proportion, it does not need to be 50/50. Your mortgage broker can help you determine the right split based on your savings levels, income certainty, and financial strategy.

The RBA rate environment in 2026

The choice between fixed and variable rates is heavily influenced by the current and expected RBA rate environment. General principles:

• In a rising rate environment. Fixing locks in the current lower rate and protects you from further increases. Variable borrowers face increasing repayments as the RBA raises rates.
• In a falling rate environment. Variable borrowers immediately benefit from RBA cuts. Fixed borrowers are locked out of the cuts and can end up paying above-market rates.
• At the top of a rate cycle. Fixing can capture the peak variable rate before the cycle turns, but timing this precisely is very difficult, even for professional economists.

As of April 2026, the RBA has moved through a significant rate hiking cycle (2022 to 2023) and has subsequently begun reducing the cash rate. In a rate-cutting environment, variable rates have generally performed better than fixed rates, as variable borrowers benefit from each RBA cut while fixed borrowers remain locked to their prior rate.

The key question for 2026 is: are we in the middle of a rate-cutting cycle, or near the bottom? If rates are expected to fall further, variable is likely the better choice. If rates are expected to stabilise or rise again, fixing provides security. No one can predict this with certainty, including the RBA.

Break costs: the hidden danger of fixed rates

Break costs (also called early repayment costs or economic costs) are fees charged by lenders when a fixed rate loan is broken before the end of the fixed period. They can be shockingly large, sometimes tens of thousands of dollars, and catch many borrowers off guard.

When break costs are triggered:

• Selling the property during the fixed period
• Refinancing to a different lender during the fixed period
• Paying out the loan in full before the fixed term ends
• Switching from fixed to variable during the fixed period

How break costs are calculated:

The calculation method varies by lender but is generally based on the “economic cost” to the lender of unwinding the fixed rate position. In simple terms, if you fix at a higher rate and rates subsequently fall, the lender can re-lend that money at a lower rate, and you compensate them for the difference.

Formula (simplified):

Break cost ≈ (Fixed rate − Current wholesale rate) × Loan balance × Remaining term in years

Example: if you fixed at 6.5%, rates have since fallen and the current wholesale rate for the remaining 18-month term is 5.0%, and you have $500,000 remaining, the break cost could be approximately:

(6.5% − 5.0%) × $500,000 × 1.5 years = $11,250

In practice, the exact calculation is more complex. Always ask your lender for a break cost estimate before committing to break a fixed loan.

Questions to ask before fixing your rate

Before committing to a fixed rate, consider:

• Are you planning to sell the property during the fixed period? If there is any possibility you might sell, weigh the break cost risk carefully. Selling a $700,000 home mid-fixed-term could cost you $15,000+ in break costs on top of agent fees.
• Do you need an offset account? If you keep significant savings (e.g. $50,000+) in an offset account, you may lose more from forgoing the offset benefit than you gain from rate certainty. Model the numbers with your broker.
• Are you expecting a significant change in income? A large bonus, inheritance, or other windfall that you want to use to pay down the mortgage will likely incur break costs on a fixed loan. Variable allows unlimited extra repayments.
• How confident are you about your rate outlook? Fixing is essentially a bet that rates will rise (or stay the same). Variable is a bet that rates will fall (or that you can absorb the uncertainty). How confident are you in your outlook?
• What happens at the end of the fixed term? Most lenders revert to a standard variable rate at expiry, which is often not competitive. Set a calendar reminder to review your loan 2 to 3 months before expiry.

Use our borrowing power calculator to understand what you can afford under each structure, or our mortgage repayment calculator to compare repayments at different rates.