Fixed vs Variable Home Loans: How to Actually Decide

Fixed and variable rates solve two different problems one protects against uncertainty, the other keeps you flexible. Most borrowers don't need to choose one exclusively; understanding the trade-off is what actually matters.

Variable rate: flexibility, at the cost of certainty

Your rate and repayment moves with the market, for better or worse. In exchange, variable loans typically come with more flexibility: full offset account access, unlimited extra repayments, and redraw facilities, without the break costs that come with exiting a fixed term early.

Fixed rate: certainty, at the cost of flexibility

Your rate is locked for a set term (commonly 1–5 years), so your repayment doesn't change no matter what the RBA does. The trade-off is less flexibility fixed loans often cap extra repayments, may not offer full offset access, and can carry significant break costs if you refinance, sell, or pay off the loan early during the fixed term.

Split loans: doing both at once

A split loan divides your balance between fixed and variable portions locking in certainty on part of your repayment while keeping offset access and flexibility on the rest. It's a structure worth knowing exists, since many borrowers only find out about it after they've already fixed their entire loan.

Questions worth asking yourself

• How would a rate rise actually affect my household budget? If the answer is "significantly," some fixed-rate certainty may be worth the flexibility trade-off.
• Do I have savings I want working against my loan via an offset account? If yes, a fully fixed rate may cost you more than it appears to save.
• Am I likely to sell, refinance, or make large extra repayments in the next few years? If so, a fixed rate's break costs and repayment caps are worth weighing carefully.

There's no universally "right" answer

The right structure depends on your income stability, your savings behaviour, and how much uncertainty you're comfortable carrying not on which option happened to be cheaper last quarter. Our repayment calculator lets you model both structures against your actual numbers, and a broker conversation can weigh the trade-offs against your specific plans.