How is borrowing capacity calculated?

Lenders assess your borrowing capacity based on income, living expenses, existing debts, dependants, and a buffer above the actual interest rate (assessment rate). Each lender applies its own formulas, which is why your borrowing power can vary significantly between banks.

Should I choose a fixed or variable rate home loan?

Fixed rates give you certainty over repayments for a set term but limit flexibility (e.g. extra repayments, offset features). Variable rates move with the market and offer more flexibility. Many borrowers split their loan to get a balance of both.

What is an offset account and is it worth it?

An offset account is a transaction account linked to your home loan. The balance is offset against your loan, reducing the interest you pay. For most owner-occupiers with a healthy cash buffer, the interest savings outweigh any account fees.

How long does a home loan application take in Australia?

Pre-approval typically takes 2 to 5 business days. Full approval and settlement on a purchase usually take four to six weeks from contract signing, depending on the lender, property type, and complexity of your situation.

Journal

Strategy · June 2026 · 6 min read

Fixed vs Variable Home Loans in Australia: Which One Actually Suits You?

Fixed rates feel safer, variable rates feel flexible. Here's a simple way to decide which structure fits your situation, without the sales spin.

Photo: Somno, CC BY-SA 4.0 via Wikimedia Commons

One of the most common questions we get from Australian borrowers is simple: “Should I fix my home loan or stay variable?”

The honest answer is that there's no universal right choice. The best structure depends on your cash flow, your plans for the property, and how much rate movement you can comfortably absorb.

Here's a clear, no jargon breakdown of how each option works and how to decide what suits you.

What a Variable Rate Actually Means

A variable rate moves up or down based on lender pricing decisions, which are heavily influenced by the Reserve Bank of Australia's cash rate.

Variable loans usually offer:

full offset account access
unlimited extra repayments
easier refinancing with no break costs
more flexibility if your situation changes

The trade off is that your repayments can rise when rates increase, which can put pressure on household budgets if you haven't built a buffer.

What a Fixed Rate Actually Means

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

Fixed loans usually offer:

certainty over your repayments
protection from rate rises during the fixed term
easier budgeting for households on tight cash flow

The trade off is reduced flexibility. Extra repayments are often capped, offset accounts may be limited or unavailable, and breaking the fixed term early can come with significant costs.

When Fixing Often Makes Sense

Fixing tends to suit borrowers who:

need certainty around monthly repayments
have limited cash flow buffer
are starting a family or reducing income temporarily
simply value peace of mind over flexibility

It's less about predicting rates and more about protecting your household from short term shocks.

When Staying Variable Often Makes Sense

Variable tends to suit borrowers who:

want to make large extra repayments
plan to use an offset account to reduce interest
may sell or refinance within a few years
want full flexibility to restructure their loan

If you're aggressively paying down debt or parking savings in offset, variable usually wins on long term cost.

The Often Overlooked Option: Split Loans

Most borrowers don't realise you don't have to choose one or the other.

A split loan lets you fix part of your mortgage and keep the rest variable. That gives you repayment certainty on a portion of the loan while keeping offset and flexibility on the other.

You can model how each structure changes your repayments using our repayments calculator.

Final Thoughts

Choosing between fixed and variable isn't about predicting where rates are headed. It's about choosing a structure that fits the way you actually live and manage your money.

If you'd like help working through the right structure for your situation, get in touch with a Vairo broker. We'll walk you through the numbers and the trade offs in plain English.

The information in this article is general in nature and does not take into account your personal circumstances. Speak with a qualified mortgage broker before making lending decisions.

More on strategy.

See all FAQs