Fixed vs Variable — Which Home Loan is Right for You?

It's one of the first questions every home buyer asks — and one of the most debated topics in mortgage broking. Fixed or variable? The honest answer is that neither is universally better. The right choice depends on your situation, your priorities, and what the current lending environment looks like when you're ready to act.

Here's everything you need to understand to make an informed decision.

What Is a Fixed Rate Home Loan?

A fixed rate loan locks your interest rate in for a set period — typically one to five years. During that time, your repayments stay the same regardless of what happens to interest rates in the broader market.

At the end of the fixed period, the loan usually rolls onto a variable rate, at which point you can choose to refix, switch to variable, or refinance entirely.

What borrowers like about fixed rates:

Certainty — you know exactly what you're paying each month
Protection if rates rise during your fixed period
Easier to budget, especially for first home buyers adjusting to mortgage repayments

What borrowers find limiting:

Limited or no ability to make extra repayments (or penalties if you do)
No offset account in most cases — meaning less flexibility to reduce interest
Break costs if you need to exit the loan before the fixed term ends — these can be significant
If rates fall, you're locked into the higher rate

What Is a Variable Rate Home Loan?

A variable rate loan moves with the market. When the RBA changes the cash rate, your lender will typically (though not always) adjust your rate accordingly. Your repayments can go up or down over time.

What borrowers like about variable rates:

Flexibility — make extra repayments without penalty
Access to an offset account, which can significantly reduce the interest you pay
Redraw facility — access extra repayments if you need them
If rates fall, your repayments fall too
No break costs if you want to refinance or sell

What borrowers find uncertain:

Repayments can increase if rates rise
Harder to budget when you don't know what next month's repayment will be
Requires more active management — reviewing your rate regularly is important

The Split Loan — The Middle Ground

Many borrowers choose a split loan: fixing a portion of their mortgage and keeping the rest variable. For example, fixing 60% and keeping 40% variable.

This approach gives you:

Partial protection against rate rises (the fixed portion)
Flexibility on the variable portion — extra repayments, offset account, redraw
Reduced break cost exposure compared to fully fixing

A split loan isn't right for everyone, but for borrowers who want certainty without sacrificing all flexibility, it's worth discussing with a broker.

Fixed vs Variable — Head to Head

Feature	Fixed	Variable	Split
Rate certainty	✓ Yes	✗ No	Partial
Extra repayments	✗ Limited/none	✓ Yes	Partial
Offset account	✗ Rarely	✓ Yes	Partial
Redraw facility	✗ Rarely	✓ Yes	Partial
Protection if rates rise	✓ Yes	✗ No	Partial
Benefits if rates fall	✗ No	✓ Yes	Partial
Break costs	✓ Can be significant	✗ None	Partial
Flexibility to refinance	✗ Limited	✓ Yes	Partial

How Do You Actually Decide?

There's no formula that works for everyone, but these questions help narrow it down.

Choose fixed if:

You're on a tight budget and need payment certainty
You're worried about rate rises and want to lock in before they happen
You don't plan to sell or refinance during the fixed period
You're a first home buyer who wants to know exactly what you're paying while you settle in

Choose variable if:

You want the flexibility to make extra repayments and pay your loan down faster
You have or want an offset account — particularly useful if you carry a cash buffer
You expect rates to fall and want to benefit when they do
You might need to sell or refinance within the next few years

Consider a split if:

You want a balance of certainty and flexibility
You're not sure which way rates will move and want to hedge
You have savings that would benefit from sitting in an offset account on the variable portion

The Break Cost Trap — What Most People Miss

One of the most misunderstood aspects of fixed rate loans is the break cost.

If you fix your rate and then need to exit the loan early — because you sell, refinance, or your circumstances change — your lender may charge a break cost. This is calculated based on how much rates have moved since you fixed and how much time is left on your fixed term.

In some market conditions, break costs can run into tens of thousands of dollars. This catches borrowers off guard — particularly those who fixed during a period of low rates and then needed to sell or access equity.

Before fixing, ask your broker: "What would my break cost look like if I needed to exit this loan in two years?" It's a question worth answering before you commit.

A Note on Rate Predictions

Every year, economists and analysts publish predictions about where rates are heading. Some are right. Most are wrong, or right for the wrong reasons.

A mortgage broker's job is not to predict rates — it's to understand your situation well enough to recommend the structure that serves you best regardless of what happens. The right loan structure for you depends on your income, expenses, goals, and risk tolerance — not on any one person's rate forecast.

Be cautious of anyone — broker, banker, or commentator — who tells you with certainty which way rates will move.

Frequently Asked Questions

Can I switch from fixed to variable before my term ends? Yes, but break costs may apply. The cost varies significantly depending on your lender, how much time is left on your fixed term, and how rates have moved. A broker can calculate your specific break cost before you make any decision.

What happens when my fixed rate expires? At the end of your fixed term, your loan typically rolls onto the lender's standard variable rate — which may not be competitive. This is a critical moment to review your loan. Many borrowers who fixed and forgot end up on a poor rate when their term expires.

Is it better to fix now or wait? This depends on the current rate environment, your personal situation, and your risk tolerance. A broker can walk you through the options specific to your circumstances — there's no universal answer.

Can I have an offset account on a fixed loan? Most fixed rate loans don't offer a true offset account. Some lenders offer a partial offset on fixed loans, but the terms vary. If an offset account is important to you, a variable or split structure may suit you better.

Do fixed rates cost more than variable? Not necessarily. Fixed rates are priced differently from variable rates and reflect market expectations about where rates are heading. At any given time, fixed rates may be higher or lower than variable — it depends on the lending environment.

The Bottom Line

Fixed vs variable is not a question with a single right answer — it's a question about what matters most to you right now.

If certainty and stability are your priority, a fixed rate offers peace of mind. If flexibility and the ability to pay your loan down faster matter more, variable is likely the better fit. And if you want both, a split loan might be worth exploring.

The most important thing is making an informed decision based on your actual situation — not a general rule of thumb you read online.

Daniel Kotevski is a Sydney-based mortgage broker serving first home buyers and homeowners across Sydney, Beverly Hills, and the surrounding suburbs. Credit Representative 517192.

This article is general in nature and does not constitute financial advice. Please speak to a qualified mortgage broker for advice specific to your situation. Loan products, rates, and features are subject to lender criteria and may change. Always verify current terms with a licensed professional.