Fixed vs variable rate: what to consider when choosing your home loan

The fixed vs variable question is one of the most common decisions borrowers face — and one of the most misunderstood. It's not really about predicting where rates will go (nobody does that reliably). It's about understanding your own situation, priorities, and risk tolerance, and choosing a structure that serves you well regardless of what happens next.

What each option actually means

Variable rate loans move with the market. When the RBA adjusts the cash rate, lenders typically pass on changes (fully or partially) to variable rate borrowers. Your repayments can go up or down over time.

Fixed rate loans lock your interest rate for a set period — usually 1, 2, 3, or 5 years. During that time, your repayments don't change regardless of what the RBA does. After the fixed period ends, the loan reverts to a variable rate (or you can choose to re-fix).

The case for variable

Variable loans are more flexible — and in Australia, the majority of borrowers are on variable rates. The main reasons to prefer variable:

• Offset accounts: Most variable loans offer full offset accounts. Every dollar you hold in an offset reduces the interest you're charged — a powerful feature that can save you significant money over the life of the loan and isn't typically available on fixed loans.
• Extra repayments: You can usually make unlimited extra repayments without penalty, accelerating loan payoff.
• No break costs: If you want to refinance or sell, you can do so without paying break fees.
• Rate can fall: When the RBA cuts rates, variable borrowers benefit — and over long periods, variable rates have historically been competitive.

The case for fixed

Fixed rates offer certainty — and certainty has real value, especially if your budget is tight or you dislike financial uncertainty. Key reasons to consider fixing:

• Predictable repayments: Especially useful if you're stretching to buy, have a single income, or have a fixed-income budget.
• Protection from rate rises: If rates go up during your fixed term, you're insulated. This has obvious appeal in a rising rate environment.
• Psychological comfort: For some borrowers, knowing exactly what they'll pay each month has genuine value beyond the maths.

Break costs: the fixed loan sting

The most important thing to understand about fixed loans: breaking out of them early can be very expensive. Break costs aren't a penalty — they're the lender's calculation of their economic loss from you exiting a fixed contract. They're based on the difference between your fixed rate and the current wholesale rate, multiplied by your loan amount and remaining term.

In practice, this means:

• If rates rise after you fix, your break cost is low or zero (the lender can re-lend the money at a higher rate — no loss)
• If rates fall after you fix, your break cost can be substantial (in some cases, tens of thousands of dollars)

The practical implication: don't fix if you think you might want to sell, refinance, or make large lump-sum repayments during the fixed term.

Split loans: the middle path

Many borrowers choose a split loan — fixing a portion of the loan while keeping the rest on variable. For example: 60% fixed, 40% variable. This gives you:

• Rate certainty on the fixed portion (budgeting confidence)
• An offset account on the variable portion (flexibility and interest savings)
• Reduced break cost exposure (only the fixed portion is subject to break costs)

A split can be a genuinely good structure for borrowers who want some certainty without sacrificing all flexibility. The right split ratio depends on your situation.

What about rate predictions?

Economists, banks, and commentators constantly make predictions about where rates are heading. These predictions are frequently wrong — and the market has a way of surprising everyone. Locking in based on rate predictions is a gamble, not a strategy.

A better framework: choose a structure based on your circumstances and risk tolerance, not on predictions. Ask yourself:

• How would a 1–2% rate rise affect my ability to meet repayments? (If it would be genuinely difficult, some fixed certainty may be valuable)
• Do I want to make extra repayments or have an offset account? (If yes, variable is likely better)
• Am I planning to sell or refinance in the next 1–3 years? (If yes, avoid fixed or minimise the fixed portion)
• Does financial uncertainty cause me significant stress? (Personal comfort has real value)

What's right for you

There's genuinely no universal answer here. A broker's job isn't to push you toward one structure — it's to help you understand the trade-offs in the context of your actual situation, and to find the lender and product that fits best. The rate is one number; the features, flexibility, and fit with your financial life are the full picture.

If you're not sure which way to go, book a call. We can walk through the scenarios specific to your loan size, timeline, and financial position.