Fixing your rate buys certainty. The honest question is what it costs you.
A fixed rate locks your interest rate — and your repayment — for a set term, usually one to five years. That's genuine peace of mind if rates climb. But it isn't free: you trade away flexibility, you can face a real break cost if life changes, and when the term ends you roll onto whatever the rate is then. Here's the whole picture, not just the reassuring half.
The great fixing wave — and its collapse.
When pandemic-era rates hit record lows, borrowers rushed to fix: the share of housing credit on a fixed rate climbed from around a fifth to a near-40% peak in early 2022. Then the cash rate started rising, cheap fixed offers vanished, and new fixed borrowing fell away — today under 5% of mortgages are fixed. The bars trace that rise and fall.
Bars show the approximate share of outstanding housing credit on a fixed rate and are illustrative of the trajectory the RBA reports — the two anchors (a near-40% peak in early 2022 and under 5% today) are the sourced figures; intermediate points sketch the shape, not exact quarterly readings. Historical shares, not an offer of credit or a rate. Source: RBA (Statement on Monetary Policy, February 2026; fixed-rate housing-credit commentary).
Three things a fixed rate does — and doesn't — do.
Your rate is locked for the term
Choose a term — most commonly 1 to 5 years, with 2–3 years the usual pick — and your interest rate and repayment stay put for that whole period, whatever the RBA does.
It reverts at the end
When the fixed term ends the loan rolls onto the lender's standard variable rate — often higher than a sharp new-customer rate. That's a decision point to re-fix, refinance or renegotiate, not an autopilot.
Features are usually thinner
Fixed loans commonly limit extra repayments and often don't offer a full offset account. If flexibility matters, that's the trade — and part of why many people split fixed and variable instead.
What fixing protects you from — and what it doesn't.
Certainty is real, but it's specific. Fixing does one job well; it leaves plenty untouched. Knowing the difference is the whole decision.
- ▲Rate rises during your term — your repayment doesn't move even if the cash rate climbs.
- ▲Budget uncertainty — the exact repayment is known for the whole fixed period.
- ▲Payment shock while you're locked in — you're insulated for the rest of the term.
- ◇Reversion — when the term ends you roll onto the prevailing rate, which may be higher.
- ◇Break costs — exiting early (to sell, refinance or repay) can trigger a real charge.
- ◇Missing out if rates fall — you're locked in, so a lower market rate doesn't reach you.
- ◇Losing features — thinner offset/redraw and capped extra repayments during the term.
A break cost is not a fixed fee — it can be zero, or it can be thousands.
If you exit a fixed loan early — selling, refinancing, or paying a big lump sum — the lender can charge a break cost (an early-repayment adjustment). It's based on how wholesale swap rates for your remaining term have moved since you fixed, present-valued to today. If those rates have fallen, the cost can be large; if they've risen, it can be near zero.
Because it's driven by markets, no one can tell you the number in advance from a table — your current lender must quote it, and the quote is usually valid for only about 24–48 hours. Always get that estimate in writing before you commit to breaking.
Source: ASIC MoneySmart (fixed-rate loans / break costs), corroborated by lender early-repayment fact sheets. General information, not personal advice; your lender's written figure prevails.
Fixing shifts the risk — it doesn't remove it. It moves to reversion day.
If you're already fixed, a rising cash rate doesn't touch your repayment for the rest of the term — that's the point, and it's genuine protection. The exposure is concentrated at reversion: when the term ends you roll onto the rate that exists then, which after a run of hikes can be a sharp step up. Fixing during rising-rate expectations trades the chance of falling repayments for that certainty.
One quieter point in a rising-rate world: break costs tend to be lower when rates have risen since you fixed, and higher when they've fallen. It doesn't make breaking free — but it changes the maths, and it's worth checking rather than assuming.
Rates and the cash rate are indicative, as-of dated, and move with the market and the RBA cash rate — they are not an offer, a quote, or a guarantee of any particular rate or approval. Confirm current figures before acting. Sources: RBA Cash Rate Target (July 2026) and RBA Lenders' Interest Rates (May 2026).
Fixing isn't right or wrong — it's a fit for a situation.
A tight, fixed budget
If a rate rise would genuinely strain your household — a single income, a new baby, a fixed budget — the value of a known repayment can outweigh the flexibility you give up.
No plans to move or refinance
Fixed works best when you're unlikely to sell, refinance or repay a big lump sum during the term — the scenarios that trigger break costs. If your plans are settled, that risk is low.
Split, rather than all-or-nothing
Many borrowers fix part and keep part variable — certainty on one slice, offset and flexibility on the other. Break costs then apply only to the fixed portion. It's a hedge against getting the rate call wrong.
Predictable investment cash flow
Some investors fix to make cash flow predictable for budgeting. Tax treatment is general information only, not advice — worth confirming with your accountant for your circumstances.
Fixed-rate loans, answered straight.
What is a fixed-rate home loan?
A fixed-rate home loan locks your interest rate — and therefore your repayment — for a chosen term, most commonly 1 to 5 years. During that term your repayment doesn't change regardless of RBA cash-rate moves. At the end of the term the loan reverts to the lender's standard variable rate unless you re-fix or refinance.
How long can I fix for?
Standard terms on our panel are 1, 2, 3, 4 or 5 years, and 2–3 years is the most common choice. A longer term gives certainty for longer but usually at a higher rate and with a longer window during which a break cost could apply if your plans change.
What is a break cost and when would I pay it?
A break cost (early-repayment adjustment) can apply if you exit a fixed loan before the term ends — by selling, refinancing, or repaying a large lump sum. It's based on how wholesale swap rates for your remaining term have moved since you fixed, so it can range from near zero to several thousand dollars. It isn't a set fee: your lender must quote it, and the quote is typically valid for only about 24–48 hours. Always ask for that estimate in writing first.
What happens when my fixed term ends?
Your loan reverts to the lender's standard variable rate, which is often higher than a sharp new-customer rate. That makes the end of the term a decision point — you can re-fix, move to variable, or refinance. It's worth reviewing your options a few months before the term ends rather than letting it roll automatically.
Does fixing protect me from everything?
No. Fixing protects you from rate rises and repayment uncertainty during the term. It doesn't protect you from reversion to a higher rate when the term ends, from break costs if you exit early, or from missing out if rates fall. Fixed loans also tend to have thinner features — capped extra repayments and often no full offset.
Fixed, variable, or split — how do I choose?
It depends on your budget, your plans and your view on rates — and nobody can predict rates with certainty. If a rate rise would strain your budget and you're staying put, fixed certainty can be worth the trade. If you want flexibility, offset and the upside of falling rates, variable may suit. Many borrowers split the loan to hedge both. We'll talk it through against your actual situation, not a generic rule.
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