Refinancing in 2026: Run the Break-Even Before You Switch
By the AgentFind Editorial Team — Australian Property Professional Directory, Sydney
Refinancing arithmetic is simple and almost nobody does it. On a $600,000 loan with 25 years remaining, moving from 6.79% to 6.14% saves about $243 a month — roughly $2,900 a year — against switching costs that typically total under $1,000. That is a break-even inside four months. The part that costs people money is not the fee; it is accepting a fresh 30-year term, which on the same numbers adds around $139,000 of interest over the life of the loan while making the monthly repayment look better.
Key Takeaways
Refinance for the rate, keep the remaining term. And check your serviceability position before you apply, because the buffer that applies to new lending applies to you as well.
- Break-even is usually months, not years. A 0.65 percentage point saving on $600,000 recovers typical switching costs in well under half a year.
- Resetting to 30 years is the hidden cost. Lower monthly repayment, materially more total interest — on the example above, roughly $139,000 more.
- APRA’s 3 percentage point buffer applies to refinancing too. There is no formal reduction for a like-for-like switch.
- If you no longer meet standard criteria, past repayment behaviour can be considered. APRA permits case-by-case assessment using additional indicators of repayment capacity, within exceptions it expects to be “strictly contained”.
The Break-Even Calculation, Done Properly
Take the monthly saving, divide the total switching cost by it, and you have the number of months to break even. The only discipline required is being honest about both numbers.
On $600,000 with 25 years left, at 6.79% the repayment is about $4,161 a month. At 6.14% over the same remaining 25 years it is about $3,917. The saving is roughly $243 a month, or about $2,900 a year.
Against that, typical switching costs: a discharge fee from the outgoing lender (often a few hundred dollars), a mortgage registration and discharge of mortgage fee payable to the state land registry, possibly a valuation and an application or settlement fee, and — critically — break costs if you are exiting a fixed rate. Excluding fixed-rate break costs, a total under $1,000 is common. That is a break-even of around four months.
| Scenario on $600,000, 25 years remaining | Monthly repayment | Total interest paid |
|---|---|---|
| Stay at 6.79%, 25 years left | ≈ $4,161 | ≈ $648,000 |
| Refinance to 6.14%, keep 25-year term | ≈ $3,917 | ≈ $575,000 |
| Refinance to 6.14%, reset to 30-year term | ≈ $3,652 | ≈ $715,000 |
Read the third row carefully. It has the lowest monthly repayment and the highest total cost — about $140,000 more interest than the second row, and roughly $67,000 more than not refinancing at all. Illustrative figures on a principal-and-interest loan at the rates and terms shown, excluding fees and offset effects; your own numbers will differ.
Insider Insight: Ask the new lender to set the loan term to your remaining term, not to 30 years. Most will do it on request; almost none will offer. If the system forces a 30-year term, set up a recurring extra repayment equal to the difference so the loan still finishes on the original schedule. That single instruction is worth more than the rate negotiation on most refinances.
The Refinancer’s Problem: The Buffer Applies to You Too
APRA’s 3 percentage point minimum serviceability buffer is “to be applied above the housing loan interest rate”, and there is no formal carve-out that lowers it for refinancing. A borrower who took a loan when rates were lower can therefore be unable to pass the assessment for the same debt at a cheaper rate — the position commonly described as being a mortgage prisoner.
The position is not hopeless. APRA’s guidance acknowledges that exceptions to lending policy occur and permits, for borrowers who no longer meet standard criteria, case-by-case assessment using additional indicators of repayment capacity, which “could include past repayment behaviour”. Equally, APRA expects those exceptions to be “strictly contained so as not to undermine the intent of the core policy”, and has said that banks reporting large volumes of policy exceptions will attract heightened supervisory attention.
Translated: a clean five-year repayment history on the existing loan is a real argument, not a formality, and it is worth putting in front of a lender explicitly. But it is a discretion, not an entitlement, and it varies by lender — which is precisely the sort of thing a broker who submits to twenty lenders knows and you cannot look up.
Three Things That Change the Answer
Your loan-to-value ratio, whether you are exiting a fixed rate, and whether you are borrowing more at the same time will each change the calculation materially.
Loan-to-value ratio is the one most borrowers underestimate. Lenders price in bands, and if the property has grown in value or the balance has fallen since purchase, you may have crossed into a better band without noticing. Get an indicative valuation before you assume your current rate is competitive — sometimes the best refinance is a repricing request to your existing lender, which costs nothing and takes a phone call.
Fixed-rate break costs can be large and are calculated by the lender on its own funding position; ask for the figure in writing before committing. And if you are consolidating other debt or cashing out equity, you are not refinancing — you are increasing your borrowings, which resets the whole serviceability question and usually the pricing too.
Context matters here: the RBA left the cash rate target unchanged at 4.35 per cent at its 11 August 2026 meeting, with the Board noting headline inflation “is still too high”. Waiting for cuts is not a strategy; comparing what is available today against what you are paying today is.
FEATURED CASE STUDY
The Refinance That Saved $243 a Month and Cost $140,000
A borrower with $600,000 outstanding and 25 years to run was quoted 6.14% by a new lender against the 6.79% she was paying. The saving was real, the switching costs came to about $870, and she signed.
The new loan was written on a fresh 30-year term, because that is the default. Her repayment fell by about $509 a month rather than the $243 the rate change alone justified — which felt like a better outcome.
Over the life of the loan the 30-year version costs roughly $715,000 in interest, against about $575,000 had the 25-year remaining term been preserved. The extra $266 a month she was no longer paying cost her around $140,000.
Two years later she set up an additional repayment to bring the loan back onto its original schedule, recovering most of it. Asking for the shorter term at the outset would have cost one sentence. This is an illustrative scenario built from the typical figures above, not a specific client file.
The Order to Do It In
Call your existing lender and ask for a repricing first. If the answer is inadequate, get a broker to assess what is available and what your serviceability position looks like. Then switch, keeping your remaining term.
The repricing call is free and frequently works, because retaining a loan is cheaper for a lender than acquiring one. Have a competitor’s advertised rate in front of you when you make it.
If you do switch, confirm four things in writing before settlement: the rate and whether it is introductory, the loan term, the annual and ongoing fees, and whether an offset or redraw is included and at what cost. And do not open new credit or change your spending pattern in the three months before applying — refinancing is a credit application like any other.
Frequently Asked Questions
➕ How do I calculate the break-even on a refinance?
➕ Should I keep my remaining loan term when refinancing?
➕ Does the serviceability buffer apply when I refinance?
➕ What if I can’t pass the assessment on my existing loan?
➕ What are the typical costs of refinancing?
➕ Can I just ask my current lender for a better rate?
➕ Does my loan-to-value ratio affect the rate I’m offered?
➕ Is it worth waiting for rate cuts before refinancing?
Check the Reviews Before You Pick Up the Phone
The difference between a good and a mediocre refinance is usually one instruction about the loan term. Every professional listed on AgentFind shows their verified Google rating and review count on their profile, pulled from their own Google Business Profile rather than written for them.
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Refinanced recently? Tell us in the comments what rate you moved from and to, and whether you kept your remaining term. Borrowers about to sign a 30-year reset will thank you.
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Related reading: how the buffer and DTI cap set your borrowing limit and buying with a 5% deposit.
Important — currency and verification notice
This article is general information only and was current at the date of publication shown above. It is not legal, financial, taxation or credit advice, does not take your objectives, financial situation or needs into account, and the worked examples are illustrative rather than quotes.
Interest rates, regulatory settings, lender policies, fees, scheme eligibility and thresholds change frequently, and several of the settings referred to here apply from staged dates. Before acting on anything in this article you must independently verify the current position that applies to you — including the relevant credit, property, strata and consumer legislation; current APRA settings and the individual lender’s policy and fees; the jurisdiction, procedures and time limits of the applicable tribunal (for example NCAT in New South Wales or VCAT in Victoria); the content and currency of any certificate you intend to rely on, such as a section 184 or section 108 certificate; and the current status of any building defect, combustible cladding or remediation scheme affecting a property you are financing.
AgentFind is a directory service. We do not provide legal, financial, credit or strata advice and we accept no responsibility for decisions made in reliance on this article. Obtain advice from a qualified professional — a solicitor, licensed conveyancer, accountant, licensed mortgage broker or licensed strata manager as appropriate — and confirm current requirements with the relevant government authority or regulator before committing to a transaction or a course of action.
Sources: APRA — Housing lending standards: reinforcing guidance on exceptions; APRA — macroprudential policy settings, 28 May 2026; RBA — Monetary Policy Decision, 11 August 2026.
