Australian homeowners refinanced in record numbers through 2025 — more than 640,000 of them, up around 20% on the year before, according to ABS and PEXA data. The reason is simple. The average existing-customer rate is 0.4% to 0.8% higher than what the same lenders are offering new borrowers this week. Banks call it "back-book pricing." Everyone else calls it the loyalty tax.
If you have had your home loan for more than two years and never reviewed it, there is a decent chance you are paying it. On a $500,000 balance, a 0.5% rate cut is about $200 a month — $2,400 a year back in your pocket for a process that takes 4 to 6 weeks and is almost entirely handled by a broker. This guide covers exactly when refinancing is worth it, what it costs, how to do it, and where the real traps are.
What Is Refinancing? (And Why 640,000 Australians Did It in 2025)
Refinancing means replacing your current home loan with a new one — either with your existing lender at a renegotiated rate, or with a completely different lender. Either way, the goal is usually the same: pay less interest, or get better features (offset account, lower fees, lump-sum flexibility).
Australia hit a refinancing peak in 2023 when the fixed-rate cliff forced hundreds of thousands of pandemic-era borrowers off sub-2% deals and onto variable rates near 6%. The wave has not stopped. Through 2025, refinance volumes climbed about 20% year-on-year as borrowers chased sharper rates and cashback incentives from lenders fighting for market share.
The dynamic driving all of it is the loyalty tax. ACCC and RBA research both confirm the pattern: after a customer has been on a loan for 2 to 4 years, their rate tends to drift 0.4% to 0.8% above what the same lender quotes a new applicant. Lenders do not advertise this — they count on inertia. Refinancing is how you reset the clock and buy yourself the new-customer price.
A good mortgage broker compares 30+ lenders in minutes and handles the paperwork end-to-end — at no cost to you. NestPath's free broker match connects you with a specialist who can tell you in one call whether you are on a competitive rate or overpaying.
How Much Can You Save by Refinancing?
Most first-time refinancers are surprised by how big the numbers get. The savings look small per month until you stretch them across the remaining life of the loan.
Worked example — $500,000 loan, 0.5% rate cut: Moving from 6.29% to 5.79% on a $500,000 30-year loan drops monthly repayments by approximately $155. If you keep repayments at the higher level instead of pocketing the saving, the loan pays off roughly 2 years earlier and you save around $62,000 in interest over the term.
Worked example — $700,000 loan, 0.7% rate cut: On a $700,000 balance, a 0.7% reduction saves around $300 to $350 per month. Over the first year alone that is $3,600 to $4,200 — and many lenders pay a $2,000 to $4,000 cashback bonus on top for switching.
Use the table below to sanity-check your own situation. These are approximate monthly savings at current interest-rate levels for a 30-year principal-and-interest loan; the actual saving depends on your remaining term.
| Loan size | 0.25% cut | 0.5% cut | 0.75% cut | 1.0% cut |
|---|---|---|---|---|
| $400,000 | ~$55/mo | ~$110/mo | ~$165/mo | ~$220/mo |
| $500,000 | ~$70/mo | ~$140/mo | ~$210/mo | ~$280/mo |
| $600,000 | ~$85/mo | ~$170/mo | ~$255/mo | ~$340/mo |
| $700,000 | ~$100/mo | ~$200/mo | ~$300/mo | ~$400/mo |
| $800,000 | ~$115/mo | ~$230/mo | ~$345/mo | ~$460/mo |
Use our mortgage repayment calculator to plug in your own numbers and see the exact monthly and lifetime savings for a specific rate change.
Two quick callouts on these numbers. First, many lenders in 2026 are still offering $2,000 to $4,000 cashback to refinancers — these offers come and go, but when they are running they essentially front-load your saving. Second, if your property has appreciated, refinancing at a lower LVR may unlock an even sharper rate — professionals packages and "low-LVR" specials are often 0.15% to 0.30% better than standard rates.
Refinancing Costs — What You Will Pay to Switch
Refinancing is not free. But unless you are breaking a fixed rate mid-term, the costs are modest — typically $500 to $2,000 all-in — and lenders routinely waive or rebate most of them through cashback offers.
| Cost | Typical range | Notes |
|---|---|---|
| Discharge fee (old lender) | $200–$400 | Fixed fee to close the existing loan |
| Application/establishment fee (new lender) | $0–$750 | Often waived for refinancers |
| Property valuation | $50–$600 | Many lenders provide free desktop valuations |
| Settlement/legal fees | $200–$500 | Coordinated by the new lender or PEXA |
| Mortgage registration/deregistration | $100–$200 | Government fee, varies by state |
| Title search fee | $30–$100 | Government fee |
| LMI (if LVR > 80%) | $5,000–$25,000+ | Only if your new loan exceeds 80% LVR |
| Break costs (fixed-rate only) | $0–$10,000+ | Can be the killer — see below |
| Typical total (variable loan) | $500–$2,000 | Often offset by cashback |
The one cost that can kill a refinance: break fees on fixed rates. If you are mid-fixed-term, breaking the fixed loan to refinance can cost several thousand dollars — sometimes enough to wipe out a year or two of interest savings. Always ask your current lender for a written break-cost quote before you apply anywhere else. If the break cost is larger than 12 months of savings at the new rate, wait until the fixed period ends.
The rule of thumb: if your annual savings exceed your all-in switching costs, refinancing is worth it. On a $500,000 loan, a 0.5% cut saves roughly $1,700 in interest in year one — more than enough to cover a $500–$2,000 cost base and start banking the difference from month one.
If your LVR has slipped back above 80% (for example, after borrowing extra for renovations), run the numbers through our LMI calculator before applying — Lenders Mortgage Insurance can be the single biggest cost in a refinance and is worth modelling upfront.
When Should You Refinance Your Home Loan?
Timing matters. Refinance at the wrong point and you pay costs for a saving you could have captured anyway — or worse, trigger break fees that cancel the benefit. Here are the five clearest signals it is time to review.
1. Your fixed rate period is ending
This is the single most important moment in your loan's life. When a fixed rate rolls off, lenders put you onto their standard variable rate, which is usually 0.5% to 1.5% higher than what new customers pay. Start comparing options 60 to 90 days before the fixed term ends — do not let it auto-revert. Brokers routinely run this review for free.
2. Your loan is 2+ years old and you have never reviewed it
The loyalty tax compounds over time. Any variable-rate loan that has not been reviewed in 24+ months is almost certainly above the current new-customer rate. A 10-minute broker call will tell you the gap.
3. Variable rates have moved since your loan started
When the RBA cuts the cash rate, lenders pass through most of the cut to new customers but are slow to apply it to existing back-book pricing. If rates have dropped since you took out your loan — or even if lender competition has sharpened — your current rate is likely stale.
4. Your property value has increased
If your property has appreciated and your loan balance has dropped, your loan-to-value ratio (LVR) may now be well under 80% — or under 60%. Lenders offer their sharpest rates at low LVRs, and if you were paying LMI on the old loan, you will not need it on the new one. A revaluation is a genuine unlock.
5. Your income has improved
A pay rise, a paid-off car loan, or a cleared credit-card balance all improve your serviceability. Lenders reassess your capacity at refinance, and a stronger position can unlock cheaper loan products or a higher borrowing limit. If your borrowing capacity has grown, check our borrowing power calculator before you apply — you may be eligible for a larger loan at a better rate than you realise.
When NOT to refinance
- Small loan balance (under $200,000). The savings are too small to justify the costs and effort.
- You are within 12 months of paying it off. The refinance pays for itself too late to matter.
- You are mid-fixed-term with high break costs. Wait for the fixed period to end unless the break cost math clearly stacks up.
- Your credit has deteriorated since you got the loan. A new application may be rejected, or only approved at a worse rate.
How to Refinance — Step by Step
The refinance process takes 4 to 6 weeks from first call to settlement. A broker handles most of it. Your job is mainly to supply documents and sign where indicated.
Step 1 — Check your current rate and compare to market
Pull up your most recent home loan statement (or log into your bank's app). Write down your current rate, outstanding balance, loan type (variable/fixed), and remaining term. If you are on a fixed rate, note the end date. This takes five minutes and is the foundation of every comparison that follows.
Step 2 — Calculate break costs (fixed rate only)
If any portion of your loan is fixed, phone your lender and request a written break-cost quote (also called "economic cost" or "early repayment adjustment"). Quotes are usually valid for 5 business days. If the figure is large, pause and do the math before going further.
Step 3 — Talk to a mortgage broker
A broker compares 30 to 40+ lenders in one sitting and identifies the best combination of rate, features, and cashback for your situation. Because brokers see the full wholesale panel, they often access rates 0.1% to 0.3% below what you can get direct. Start with a free NestPath broker match — the service is free and the broker is paid by the winning lender, not you.
Step 4 — Apply with the new lender
Your broker collates the application: two most recent payslips, three months of bank statements, most recent loan statement, ID, and a list of ongoing liabilities. The lender runs a credit check, verifies serviceability, and books a property valuation. Most refinances get formal approval within 5 to 10 business days.
Step 5 — Property valuation
Most refinances use either a free desktop valuation (run off data sources) or a kerbside valuation. A full internal inspection is only required on higher-LVR or non-standard properties. You do not need to do anything — the valuer contacts the current agent or owner if access is needed.
Step 6 — Approval and settlement
Once the loan is unconditionally approved, the new lender coordinates with your existing lender to settle — usually 2 to 4 weeks after approval. On settlement day, the new lender pays out your old loan in full, your mortgage is re-registered in their name, and your repayments switch across at the new rate.
Step 7 — Old loan discharged, new loan starts
Your old loan account closes automatically after settlement. Cancel any old direct debits (your broker will usually flag this). Set up your new offset account and move your salary across if you are changing banks. That is it — you are done.
For the document-prep side, the same paperwork you provided at home loan pre-approval when you first bought will work here, refreshed to the last three months.
Switching Home Loans vs Refinancing — What Is the Difference?
People use these terms interchangeably, but they mean two slightly different things, and the distinction matters.
Switching usually means moving to a new product with your current lender — renegotiating your rate, moving from variable to fixed, or hopping from a basic loan to a package loan. No new application is technically required in most cases; your bank's retention team can usually action it in a day or two. There are no discharge fees and no property revaluation.
Refinancing means moving to a completely different lender. It is a full new loan application, with a new valuation, new documents, and new settlement. It takes 4 to 6 weeks but typically delivers the biggest rate savings and unlocks cashback offers.
The pro move — always call your current lender first. Ring your bank's retention team (every major bank has one) and tell them you are considering switching. Have a competing rate in hand. Many banks will match or come within 0.05–0.10% of the market rate to keep your business, with zero switching costs, zero paperwork, and zero property valuation. If they won't move, refinance — and take the cashback. Either way, you win.
If rate discounts on your current loan are driving your decision, read our fixed vs variable home loan guide before locking in anything new — the structure often matters more than the sticker rate.
Home Loan Refinance Rates in 2026
With the RBA cash rate at 4.35% as of the 5 May 2026 RBA decision (a third consecutive 25 bp hike, taking the cash rate back to the November 2023 peak), competitive variable refinance rates sit roughly in the 6.04% to 6.54% range for owner-occupier principal-and-interest loans with 20%+ equity. The sharpest deals — typically package loans or low-LVR specials — start from around 5.95%. Fixed rates are generally 0.20% to 0.50% higher than variable for 1 to 3-year terms in this environment, because the RBA's own May 2026 outlook assumes the cash rate increases to 4.7% by year-end and big-four economists are pricing in at least one more hike before any easing returns.
Rates move constantly and the published "headline" rate is rarely the best rate available. Brokers have access to discretionary pricing — lender-specific discounts that sit below the advertised rate, often 0.15% to 0.35% sharper, and only available through the broker channel. Cashback offers ($2,000–$4,000 per loan) also rotate across the major lenders every few months and are often tied to minimum loan sizes. For the current market-wide rate ranges by loan type and term, see our best home loan rates Australia 2026 guide.
For context on where rates go from here, our Australia interest-rate forecast tracks the big-four bank views each month. In the current environment, most economists expect the cash rate to peak this year and sit flat through late 2026 — which means the rate you refinance onto today is likely to be similar for the next 12 to 18 months.
Before you lock in any new loan, do two things: (1) get at least one broker comparison so you can see the full panel of rates, and (2) talk to a specialist about whether a 100% offset, split loan, or package structure makes more sense than chasing the lowest sticker rate. Structure often saves more than rate alone.
Frequently Asked Questions
How long does refinancing take?
Four to six weeks from first broker conversation to settlement. A clean PAYG file with a standard property can settle in as little as 2–3 weeks. Self-employed borrowers, non-standard properties, or borrowers with complex finances typically land at the 5–6 week end. Using a broker speeds things up meaningfully — they submit clean applications to lenders with the fastest turnaround times for your profile.
Can I refinance with bad credit?
Yes, but your options narrow. The major banks will usually decline refinance applications with defaults, late payments in the last 6 months, or a recent bankruptcy. Specialist lenders (sometimes called "non-conforming" or "near-prime" lenders) will approve borrowers with impaired credit, typically at rates 0.5% to 2.0% above standard. A broker who specialises in credit-impaired refinances can identify the lenders most likely to approve your specific situation — do not apply direct to multiple lenders, as each application leaves a credit enquiry that further damages your score.
Do I need a valuation to refinance?
Usually, yes — but in 2026 most refinances use a free desktop valuation run off CoreLogic or similar data, which takes minutes and costs you nothing. A kerbside valuation (valuer drives past) is the next tier up and is also typically free. Full internal valuations are only required on higher-LVR loans, non-standard properties (e.g. rural, small units), or when the estimated value is close to a lender's LVR threshold.
Can I refinance to release equity?
Yes. If your property has appreciated, you can refinance to a larger loan amount and withdraw the difference as cash. Common uses include renovations, deposits on investment properties, debt consolidation, or business capital. Lenders will ask what the equity release is for and may apply different LVR limits depending on the purpose — for example, renovation cash-outs up to 80% LVR are routine, but investment-deposit cash-outs often cap at 70–80% LVR. Running a fresh borrowing power check before you apply is the fastest way to see how much equity is actually unlockable.
Is there a refinance calculator?
Yes — our mortgage repayment calculator doubles as a refinance calculator. Enter your current balance and rate, then run a second calculation at the new rate you are considering. The difference in monthly repayments is your monthly saving; multiply by 12 for annual saving, and compare that to your estimated $500–$2,000 switching cost to see the payback period. For most refinances at 0.5%+ rate cuts, payback is under 12 months.
Should I use a broker to refinance?
Yes, for almost every borrower. Brokers compare 30+ lenders in one session, access discretionary pricing not available direct, know which lenders are running cashback offers that month, and handle the paperwork end-to-end. The service is free — brokers are paid a commission by the winning lender, not by you, and the same loan costs the same whether you go direct or through a broker. The one scenario where going direct makes sense is if you have an existing rate-match conversation open with your current lender and just want to renegotiate your current rate without moving.
Ready to see if refinancing stacks up for you? A free NestPath broker match will review your current rate against the full lender panel, model the potential saving, and tell you upfront whether switching is worth it — or whether a retention-offer phone call to your current bank is the smarter play.
