Refinancing your home loan in Australia — the complete guide for 2026.

Refinancing is rarely a single decision. It's almost always a stack of smaller frustrations that finally tip over a threshold. Naming yours helps you focus on the right metric.

1. The rate has drifted up. You took out the loan at 5.85%; you're now on 6.74% and your neighbour just told you they're paying 5.99%. The gap is real and a refinance might collapse it.

2. Your fixed term is ending and the lender's revert rate is ugly. Australian lenders almost universally charge a higher variable rate on rolled-off fixed loans than on new fixed loans — sometimes 0.5–1.0% higher. The week your fixed term ends is the week to act.

3. Your loan-to-value ratio (LVR) has dropped below 80%. When LMI no longer applies and your equity has grown, you're suddenly eligible for the lowest tier of pricing across the market — but only if you ask. Your existing lender will not volunteer to drop your rate.

4. You want to release equity — to renovate, buy an investment property, fund a deposit on a second home, or consolidate higher-rate debt. Refinancing is one of the cleanest ways to do this when the equity is there.

5. The structure no longer fits. You took out a basic loan and now you want offset, or split fixed/variable, or interest-only, or you want to combine two loans into one. Sometimes the change can happen with your current lender; often it can't, and a refinance is the practical path.

6. Your circumstances have changed. Marriage, separation, a new business, retirement planning, a HECS balance disappearing — all of these can move borrowing capacity and product fit. The right loan for who you were three years ago is not always the right loan for who you are now.

7. Cashback or sign-on incentives. Some lenders offer $2,000–$4,000 in cashback on refinances. The economics are often less generous than the headline implies (more on this below) but for a clean file with low equity barriers, it can be a genuine sweetener.

The reason matters because it determines what success looks like. If you're refinancing for rate alone, the break-even calculation is the only number that matters. If you're refinancing for equity release, the amount of equity unlocked is what matters and the rate is secondary. Mixing the two leads to bad decisions.

Most online refinance "savings" calculators are dishonest. They take the difference in monthly repayment, divide it by the upfront cost, and call that the break-even — without addressing the loan term reset, without accounting for the time value of money, and without including the discharge cost from your current lender.

Here's the calculation that actually matters.

Inputs you need

• Current loan balance (today, not when you originally borrowed).
• Current interest rate and remaining term.
• New rate being offered.
• Upfront cost of refinancing — typically:
  • Discharge fee from current lender: $300–$400
  • Mortgage discharge registration: ~$160 (state-dependent — see NSW LRS fees or your equivalent state registry)
  • New mortgage registration: ~$160
  • Transfer/settlement fees: ~$150
  • New lender's loan establishment fee (often waived as part of refinance offer): $0–$600
  • Valuation (often free for refinances): $0–$300
  • Conveyancer (some refinances): $0–$800
  • Total typical upfront: $700–$1,500 for a clean residential refinance, more if conveyancing is required or the property is unusual.
• Cashback (if any) being offered by the new lender.

The honest formula

Months to break even = (Upfront refinance costs − cashback) ÷ (current monthly repayment − new monthly repayment, on the same remaining term)

Critical: rebuild the new loan over your existing remaining term, not over a fresh 30 years. If you have 22 years left on your current loan, ask the new lender to set the new loan to 22 years too. Otherwise the new repayment looks artificially lower because you've stretched the loan, not because the rate is better.

A worked example

• Current balance: $620,000
• Current rate: 6.59% variable, 24 years remaining
• Current monthly repayment: ~$4,237
• New rate offered: 5.94% variable, set to 24 years
• New monthly repayment: ~$3,997
• Difference: $240/month saved
• Upfront refinance costs: $980
• Cashback: $2,000

In this example, the upfront cost is net negative ($980 − $2,000 = −$1,020) — the cashback more than covers the costs. The borrower is in front from month one. They save $240/month every month, indefinitely (or until the rate changes, which is what variable means).

When the math says don't refinance

If the saving is less than $50/month and the upfront cost is more than the cashback, the break-even can stretch to two or three years. That's borderline. Two more conversations to have:

• Could your existing lender match or beat the new offer? Repricing requests work more often than people expect — ask before you switch.
• Are you confident you'll stay with the new lender for at least 4 years? Many cashback offers have a clawback clause if you refinance within 24 months. The cashback isn't free money; it's a 2-year commitment in disguise.

The classic broker mistake to watch for

A broker who calculates "savings" without showing you the upfront costs or the clawback risk is selling you a refinance, not advising you. Insist on seeing both numbers before you sign anything.

Refinance cashback offers were the headline product of 2022–2024 across most major Australian lenders. They have shrunk substantially since 2025 — most majors have either pulled cashback entirely or reduced it to $1,500–$2,000 — but they still appear, and they still trip up borrowers.

How cashback actually works

A typical offer: "$2,000 cashback when you refinance to us by 30 June, settlement within 90 days, eligible loans only." The cashback is usually paid into your nominated transaction account 30–60 days after settlement.

What's almost always in the fine print:

• Clawback period: typically 24 months. If you refinance away within that window, the lender claws the cashback back. Most clawback clauses are enforceable.
• Eligibility caps: usually the loan must be a certain minimum size ($250k–$500k), owner-occupied or specific investment categories, and not in arrears.
• Time-limited: applications received and settlements completed within the offer window. Miss the window, miss the cashback.

The ASIC concern

ASIC has publicly flagged concerns about the cashback churn cycle — borrowers being encouraged to refinance every 1–2 years to chase cashback, with brokers paid trail commission on each new loan. ASIC's REP 786 mortgage broker remuneration review and ongoing supervisory letters to lenders have made it clear that refinance churn driven by cashback alone — without a real interest-rate or structural benefit — falls outside the Best Interests Duty.

Practically, that means a compliant broker should never recommend a refinance whose primary justification is cashback. Cashback can be a legitimate tiebreaker between two otherwise comparable lenders. It cannot be the reason to refinance.

How to evaluate a cashback offer honestly

The "total interest cost over 4 years" line is the one that matters. A 0.10% lower rate over 4 years on a $600,000 loan saves you ~$2,400 — already more than most cashback offers. A 0.30% lower rate saves you ~$7,200 over 4 years.

If the cashback lender's rate is higher than your current rate by more than ~0.10%, the cashback can be a Trojan horse. Run the four-year total cost; the cashback often loses.

If you're on a fixed rate, refinancing isn't impossible — but it triggers a break cost (also called an early repayment fee or economic cost). Understanding how it's calculated stops you making expensive guesses.

What break cost actually is

Fixed-rate break cost is not a penalty. It's the lender's economic loss from you breaking the fixed-rate contract early. The maths:

Break cost ≈ (Original fixed rate − Current wholesale fixed rate for the remaining fixed period) × Loan balance × Remaining fixed term in years

If you fixed at 5.99% three years ago for 5 years, and the wholesale fixed rate for a 2-year fixed loan today is 5.40%, your break cost is roughly:

(5.99% − 5.40%) × $580,000 × 2 = ~$6,844

If wholesale rates have risen since you fixed, the break cost is small or zero. If wholesale rates have fallen since you fixed, the break cost can be substantial.

Who tells you the actual number

Your current lender — and only your current lender. They calculate it from their internal cost-of-funds curves, which aren't public. Phone them or request a "break cost statement" in writing. Numbers are typically valid for 24 hours because wholesale rates move daily.

When breaking a fixed rate makes sense

It depends entirely on whether the future saving at the new rate exceeds the break cost plus refinance fees. The arithmetic:

Net saving = (Current fixed rate − New rate) × Loan balance × Years remaining on fixed period − (Break cost + Refinance fees) − (Cashback received)

If that's a positive number you can be comfortable with, breaking the fixed makes sense. If it's negative or marginal, wait out the fixed term — set a calendar reminder for 90 days before expiry and refinance then, when there's no break cost.

One genuinely useful trick

If your fixed term has 6 months or less remaining, ask your current lender about converting to variable now in anticipation of refinancing. Some lenders will calculate a smaller break cost for partial conversion vs full discharge. Run both numbers.

ASIC MoneySmart has a useful page on fixed-rate break costs that's worth a read before you call your lender.

Equity release is the second-most-common reason to refinance after rate. It's also where lenders apply the closest scrutiny.

Equity = property value − loan balance

If your property is now worth $1,100,000 and your loan balance is $620,000, you have $480,000 of equity. But you can't access all of it. Lenders typically allow you to borrow up to 80% of the property value without LMI:

80% × $1,100,000 = $880,000 (maximum new loan with no LMI)

$880,000 − $620,000 = $260,000 of accessible equity

You could borrow above 80% LVR by paying LMI, but most equity-release strategies sit at or under 80% to avoid that cost.

Lenders don't release equity without a purpose

Every Australian residential lender requires a stated purpose for the released equity. The common acceptable purposes:

• Renovation or improvement of the property — typically straightforward; lender may want a builder's quote or a written scope.
• Investment property deposit — fine if serviceability supports the new loan plus the future investment loan; some lenders require a contract before approving.
• Vehicle, business equipment, education — accepted by some lenders, declined by others.
• Holiday, lifestyle, debt consolidation — accepted by some lenders, often at lower LVR caps, sometimes with documentation.

What lenders will not approve as a stated purpose:

• Speculation in cryptocurrency or shares (most lenders).
• "Future use" or "general purposes" without further detail.
• Anything where the source-of-funds documentation suggests something the lender is uncomfortable with.

The serviceability test on equity release

When you increase your loan, lenders re-test serviceability on the new total balance, not just the increase. If your income is the same as it was three years ago but the assessment buffer has changed (currently 3.0% above the actual rate per APRA), you might fail serviceability today on a loan you originally qualified for. This catches a lot of equity-release applications.

Working example

• Property valuation: $1,150,000
• Existing loan: $580,000
• Desired equity release: $150,000 for a renovation
• New loan total: $730,000
• New LVR: 63.5% — comfortably under 80%, no LMI
• New monthly repayment at 6.10%: ~$4,425

The serviceability question becomes: can your income service $4,425/month at the assessment rate of ~9.10% (the buffered figure)? At that rate, the calculated repayment is ~$5,780/month, and you need household income to comfortably cover that plus living expenses, other debts, and a buffer. If yes, the equity release is straightforward. If no, the application stalls regardless of how much equity you actually have.

When equity release is genuinely useful

• Renovation that lifts the property's value by more than the cost of the renovation, while the rate on the released equity is much lower than personal-loan or credit-card rates.
• Investment property deposit — using your owner-occupied home's equity as the 20% deposit for an investment property is the most common multi-property strategy in Australia.
• High-rate debt consolidation where the borrower has the discipline not to re-accumulate the credit-card debt afterwards. (This is a behavioural question, not a math question.)

Lenders Mortgage Insurance (LMI) is the insurance the borrower pays to protect the lender if the loan defaults. It's triggered when the loan-to-value ratio is above 80%. Most refinances don't trigger LMI because the borrower has built equity since the original purchase — but several scenarios can:

• Refinancing within 1–3 years of purchase when property prices haven't grown materially.
• Refinancing with equity release that pushes the new loan above 80% LVR.
• Refinancing after a property revaluation has come back below expectations.

LMI is not portable

If you paid LMI on your current loan, you cannot transfer it to the new lender. The new lender's LMI insurer is a different company (or the same insurer at a different premium structure), and the new policy is a fresh premium. You don't get a refund of the old premium.

Refinancing above 80% LVR — what it actually costs

A typical LMI premium on an 85% LVR refinance of a $700,000 loan is roughly $8,000–$12,000 depending on insurer, lender, and term. That premium is capitalised onto the loan (added to the balance) in most refinances, which means you pay interest on it for the life of the loan.

If your current loan is at 82% LVR and you refinance, stay below 80% by either contributing cash or accepting a slightly smaller loan. The avoided LMI premium is almost always worth more than any rate improvement.

When LMI on refinance makes sense

Rare, but possible — if a planned equity release for an investment property would generate substantially more income than the LMI cost, paying LMI to get the deposit released can be the right move. This is a sums-on-paper decision: model it both ways before you commit.

Authoritative reference

ASIC MoneySmart on Lenders Mortgage Insurance covers the consumer angle. The two main LMI insurers in Australia are Helia (formerly Genworth) and QBE LMI.

A clean refinance from first conversation to settlement typically takes 4–8 weeks. Here's what each phase looks like.

Week 1 — Discovery and pre-assessment. We map your current loan, your goals, the rough numbers. Free conversation. No credit check yet — only a soft preview based on your declared figures.

Week 1–2 — Lender shortlist and quotes. We request indicative pricing from 3–5 lenders that fit your file. You see the rate, fees, cashback, and product features compared side-by-side in a single document.

Week 2–3 — Application preparation. Document gathering: current loan statements, payslips/business financials, two months of bank statements, ID, evidence of any debts or commitments. We prepare the full lender application with a written explanation of the file's strengths and any complications upfront.

Week 3–4 — Application lodged and conditional approval. The lender's credit team reviews. Conditional approval (also called pre-approval) typically issues 3–10 business days after lodgement. Conditions might include a satisfactory valuation, evidence of certain income components, or clarification on a transaction.

Week 4–5 — Valuation. Most refinances use a desktop or AVM valuation (no inspection); some require a full valuation with an inspection (~5 business days). Result feeds back to the lender.

Week 5–6 — Unconditional approval and loan documents. Once the lender is satisfied with valuation, conditional approval converts to unconditional and loan documents are issued — physical or e-signed depending on the lender.

Week 6–7 — Discharge of the existing loan. The new lender's settlement team coordinates with your current lender. Your current lender provides a discharge authority and a payout figure valid to a specific date.

Week 7–8 — Settlement. New lender pays out the old lender; old mortgage is discharged from title; new mortgage is registered. The borrower's only role is to nominate a settlement date and stay reachable for the lender. Cashback (if any) is paid to your nominated account 30–60 days after settlement.

What slows refinances

• Incomplete documentation at lodgement — every missing item adds 2–5 days.
• Self-employed income with messy financials.
• Properties with title complications — strata levies in arrears, body corporate disputes, or boundary issues that show up on the new lender's title search.
• A current lender that's slow with discharge paperwork — ANZ has historically been the worst here; some non-bank specialists are notably faster.

What speeds refinances

• A complete document pack at the first conversation (most files turn around in 4–5 weeks if everything is clean).
• A simple, single-property residential file with PAYG income and no major debts.
• A new lender who's hungry for refinance volume — non-banks and some mid-tier banks are typically 1–2 weeks faster than the Big 4 on settlement.

Composites built from real client scenarios with names and numbers altered. Illustrative only; your situation will differ.

Case study A — Pure rate refinance, end of fixed term

The clients: Anita and Jordan. Owner-occupied home in suburban Melbourne. Bought 2022 at $920,000 with $640,000 fixed at 1.99% for 5 years, fixed term ending June 2027 (~14 months out at first conversation).

The numbers:

• Current loan: $588,000 fixed at 1.99%, 25 years remaining.
• After fixed term ends, lender's rolled-off variable rate would be 7.04%.
• Current property value: $1,025,000; LVR ~57%.

The strategy: Wait for fixed term to end (avoid a substantial break cost) and refinance immediately on rollover. Calendar reminder set for 90 days before expiry to start the refinance work.

The outcome: Refinanced to 5.84% variable on rollover day, eliminating the lender's 1.20% rolled-off premium. Saved approximately $4,300/year on interest. Refinance cost $980; cashback received $2,000; net negative cost. Break-even from month one.

Key lesson: The single most valuable refinance most borrowers will do is the one in the week their fixed term ends. Set a calendar reminder.

Case study B — Equity release for an investment property

The clients: Suresh and Pria. Owner-occupied home in Sydney's Inner West. Original purchase 2018 at $1,180,000 with $940,000 borrowed.

The numbers (April 2026):

• Current loan: $720,000 at 6.34%, 18 years remaining.
• Property value: $1,420,000.
• Current LVR: 50.7%.
• Goal: $200,000 cash out for an investment property deposit + costs.
• Combined household income: $290,000 (PAYG, both employed).

The strategy: Refinance to a new lender at 5.99% with the loan increased to $920,000. New LVR 64.8% — comfortably under 80% so no LMI. Stated purpose: investment property deposit (lender accepted with a signed declaration). Investment property contract still 6 months away — lender approved the equity release on a "stand-alone basis" without requiring the investment property contract.

The outcome: Loan increased by $200,000. Monthly repayment moved from $5,180 to $6,455 — manageable on their income. They'd been ready to take a personal loan for the deposit at 9.85% before we ran the equity-release path. Saved approximately $7,400/year in interest cost vs the personal-loan alternative.

Key lesson: Equity release is often a cheaper form of borrowing than personal loans, for people with the equity to use. The serviceability test still applies on the new total balance.

Case study C — Refinance to consolidate debts (with discipline test)

The clients: Jenny, single owner-occupier. Original mortgage at 6.74%, $445,000 balance, 22 years remaining. Plus $32,000 across three credit cards (averaging 19.5%) and an $18,000 personal loan at 11.85%. Total non-mortgage debt: $50,000 at average 16.7%.

The numbers:

• Property value: $710,000.
• Current home loan: $445,000 (62.7% LVR).
• New refinance: $495,000 (consolidating non-mortgage debt) at 6.18%.
• New LVR: 69.7%.

The strategy: Refinance to consolidate the cards and personal loan into the home loan. New monthly repayment ~$3,260. Previous total monthly debt servicing (mortgage + cards + personal loan): ~$4,180. Apparent monthly saving: ~$920.

But — the long-term math: stretching $50,000 of credit-card debt over the home loan's remaining 22 years means paying ~$67,000 in interest on that $50,000 vs ~$11,500 if she'd cleared it over 3 years on a personal loan. Total interest is higher despite the lower rate, because the term is longer.

What we did: Set the consolidated portion as a separate split, on a 5-year amortisation, paying it down in full while leaving the original $445,000 mortgage on a 22-year term. New monthly repayment: $4,090 — slightly less than what she was paying anyway, but the consolidated debt is paid off in 5 years not 22. Closed all three credit cards at refinance settlement (lender required this).

The outcome: Same monthly cost, $50,000 of high-rate debt cleared in 5 years instead of becoming permanent. The lender's "close the cards" requirement was the discipline mechanism.

Key lesson: Debt consolidation refinance only works if you (a) split-amortise the consolidated portion and (b) close the credit cards. Without those two structural moves, you'll be back here in 18 months with the cards re-loaded.

1. Treating the comparison rate as the whole truth. Comparison rate is a useful summary but assumes a 25-year, $150,000 loan — almost no one's actual situation. Run your own numbers on your actual balance and term.

2. Not asking your current lender to reprice first. Repricing requests succeed more often than people expect. Phone the retention team, mention you've been quoted X by another lender, and ask what they can do. Do this before paying for any refinance work.

3. Ignoring the loan term reset. The new lender's "lower repayment" might just be your loan stretched from 22 years back to 30. Always set the new loan to your existing remaining term, not a fresh 30 years.

4. Forgetting to factor cashback clawback. A 24-month clawback turns a "free" cashback into a 24-month commitment. If you refinance again within that window — even for a great reason — you owe the cashback back.

5. Refinancing while a fixed-rate clock is running. Break costs can swallow your savings entirely. Wait for the fixed term to end unless the math overwhelmingly says otherwise.

6. Underestimating discharge timing. Some lenders take 10–15 business days to process a discharge. If your settlement date is fixed (auction, contract), allow buffer.

7. Not closing cards on debt-consolidation refinance. Behavioural failure dominates math here. The cards reload; the equity vanishes.

8. Refinancing into LMI for marginal rate improvement. Crossing the 80% LVR threshold to chase a rate is almost never worth it. The LMI premium is several years of rate savings.

9. Forgetting to update your direct debits. When the loan settles and BSB/account number change, every recurring payment linked to your old offset gets rejected — sometimes silently. Keep both accounts open until you've rotated all direct debits.

10. Refinancing for cashback alone. ASIC has flagged this; the Best Interests Duty effectively prohibits it. If a broker pitches a refinance whose only justification is cashback, ask them to put their reasoning in writing.

Bookmark these. They're the sources that actually matter when there's a dispute.

• ASIC MoneySmart — Home loans — the consumer-facing reference.
• ASIC RG 273 — Mortgage brokers and the Best Interests Duty — what brokers must do.
• ASIC REP 786 — Mortgage broker remuneration review — the cashback-churn concern.
• APRA — Macroprudential policy — including the 3.0% serviceability buffer that determines what you can actually borrow.
• Australian Banking Association — Code of Banking Practice — what the major lenders commit to.
• Australian Financial Complaints Authority (AFCA) — where you go if a lender does the wrong thing.

Ready to talk?

If you've worked through this guide and the math suggests refinancing might be worth exploring, the next step is a free 30-minute conversation. Send through your current loan balance, rate, fixed/variable status, remaining term, and what you're trying to improve. I'll come back with a written, no-obligation assessment showing the realistic options for your file.

Call me on 0400 77 77 55 or send a short enquiry and I'll come back to you on a business day, usually within a few hours.