When is it worth refinancing your home loan in Brisbane? A broker's 2026 checklist

TL;DR. In 2026, refinancing your Brisbane home loan is usually worth it if you tick three of these five: your rate is 0.4% or more above the current market average, you have at least 3 years left on the loan, you have 20% equity (or can pay LMI), your break-even period is under 18 months, and your fixed rate is expiring within the next 12 months. Below the checklist you will find the actual break-even maths at three rate-drop scenarios.

The honest question first

Every week a client sends me a screenshot of a comparison site showing a rate 0.6% below what they are currently paying, and asks whether they should switch. My answer is almost never yes-or-no on the rate alone. Refinancing has upfront costs (discharge fees, government fees, potential LMI, and time cost), and the "saving" you see on the sticker rate is real only if the loan stays with the new lender long enough to earn it back.

Here is the 5-signal checklist I actually use before I recommend a refinance to a Brisbane client, followed by the break-even maths so you can run the numbers yourself.

The 5-signal refinance checklist

Signal 1: You are 0.4% or more above the current market average

In 2026, the average discounted variable rate for a well-qualified owner-occupier with 20%+ equity sits in a fairly tight band across the major banks and second-tier lenders. If your current rate is 0.4 percentage points or more above that band, refinancing is almost always in play.

Under 0.4% and you should look at rate negotiation with your existing lender first. Call the retention team, quote a specific competitor's rate, and ask what they can match. In our experience, existing lenders will match 60–70% of what a broker could get you on switch — for zero cost and zero paperwork. That is a genuine 15-minute win.

Signal 2: You have at least 3 years left on the loan

Refinancing recovers its cost through interest savings over time. If you only have 2 years left on a $180,000 balance, the total saving is unlikely to cover discharge and setup fees plus the effort involved. Under 3 years remaining, we usually recommend riding it out unless there is a serious rate mispricing.

Signal 3: You have enough equity to avoid LMI a second time

If your loan-to-value ratio (LVR) is above 80%, refinancing may trigger a fresh Lenders Mortgage Insurance (LMI) premium at the new lender — because LMI is not portable between lenders. On a $700k loan with 15% equity, that fresh LMI can be $8,000–$15,000, wiping out several years of interest savings.

The workaround: some lenders will accept a "familial guarantee" or offer LMI credits for existing LMI you've already paid. Ask a broker to check before you formally apply.

Signal 4: Your break-even period is under 18 months

The break-even period is: (total refinance costs) ÷ (monthly interest saving). If your total switching costs are $1,800 and you save $220 per month in interest, your break-even is 8.2 months — a strong yes. If break-even is over 24 months, the sums typically don't work.

We build the maths for every Brisbane refinance client in the worked example below.

Signal 5: Your fixed rate is expiring within the next 12 months

If you fixed 2 or 3 years ago, your fixed period is likely rolling off soon. Lenders default you onto their standard variable rate at fixed-rate expiry — which is usually 0.5%–1.5% higher than their discounted variable rate. That is the moment your existing lender counts on you doing nothing.

Set a calendar reminder 90 days before your fixed expires. That is the window to review the whole market — not the day it expires.

What triggers a "no, hold off"

Refinancing is not worth it when:

• Your current rate is already within 0.2% of the market — retention negotiation wins
• You have less than 2 years left on the loan
• You are between jobs, on probation, or your income is otherwise about to change
• You are planning to sell within 12 months
• You have made recent applications elsewhere — too many enquiries in a short window hurts your credit file
• Your redraw or offset balance is high and the new lender charges fees that erase the saving

Worked example: Brisbane refinance at three rate-drop scenarios

Here is the maths for a typical Brisbane client — $650,000 remaining balance, 22 years left on a 30-year loan, currently at 6.85%, considering three market rates:

"Total refinance costs" in the table includes:

• Discharge / release of mortgage fee from your existing lender: ~$350
• Government registration fees (QLD): ~$200
• New lender application / valuation fee: $0–$700 (many waive for refinance)
• Break costs if you are exiting a fixed loan: variable — get a written figure from your current lender before applying
• Conveyancer or solicitor: $0–$400 (many refinances need none)

Cashback offers — as of mid-2026, several second-tier lenders are still running cashback offers of $2,000–$4,000 for qualifying refinances above certain loan sizes. These offers move quarterly. When they are running, Scenario C above effectively becomes "get paid to refinance."

The cashback trap

Cashback offers are a genuine incentive, but they are also the single most common reason refinance decisions go wrong. A $3,000 cashback on a loan with a rate 0.3% higher than the market alternative costs you around $6,500 in extra interest over 3 years on a $650k balance. You are effectively borrowing the cashback at an expensive rate.

Rule of thumb: cashback is a tiebreaker between two comparable rates, not a reason to pick a worse rate. If a broker leads with the cashback figure rather than the rate, you are talking to the wrong broker.

What you'll need to have ready before applying

• Current loan statement (most recent one, showing balance and rate)
• Property valuation reference (rates notice or your last purchase price + roughly the CoreLogic estimate today)
• 3 months of bank statements showing income and expenses
• Latest 2 payslips or 2 years of tax returns if self-employed
• Current expenses breakdown (mortgage, utilities, groceries, subscriptions, childcare, insurances)
• Statement of any other debts (credit cards, personal loans, HECS, car loans, BNPL)
• Photo ID (driver licence or passport)

Most refinances we run in Brisbane close in 3–5 weeks from application to settlement. Complex scenarios (self-employed, trusts, multiple properties, credit history flags) can take 6–8 weeks.

What to consider beyond rate

A cheaper rate is only one of the levers. When we run a refinance for a Brisbane client, we also look at:

• Offset account structure. A 100% offset with no monthly fee is worth more than a slightly lower rate to most owner-occupiers with cash reserves.
• Redraw flexibility. Some lenders limit redraws to a certain amount per year or add a fee per redraw. Not always disclosed on comparison sites.
• Split loan capability. For investors and those planning to move, being able to split the loan between fixed and variable easily matters.
• Investment property linking. If you are likely to keep the current property as an investment and buy again, the tax structure of the loan matters more than 0.1% of rate.
• Interest-only conversion. Some investors need to convert to interest-only at some point. Not every lender allows it without a full new application.

Frequently asked questions

Q: How often can I refinance?

There is no legal limit. In practice, most lenders will not touch a loan that has been refinanced in the last 12 months without a good reason — it triggers their fraud team. If you find yourself refinancing every 12 months chasing rates, you are usually better off with a competitive lender and periodic rate negotiation.

Q: Does refinancing hurt my credit score?

Every formal loan application creates a credit enquiry, and multiple enquiries in a short window (say, 3 in 6 months) do hurt your score. A single refinance handled cleanly — one pre-application check across our lender panel, then one formal application to the winning lender — usually shows up as one enquiry. The difference matters.

Q: Can I refinance to a completely different loan structure — e.g. from principal & interest to interest-only?

Yes, though not every lender permits this without justification. Interest-only refinance is most common for investors, or for owner-occupiers who want a short-term cash flow break during, say, a family break or renovation. Owner-occupier interest-only usually carries a rate loading of 0.2%–0.4%.

Q: What if my property has dropped in value?

If your equity has slipped below 20% because of a market softening, refinancing gets harder because a new LMI premium enters the picture. Options: refinance to the same LVR you had at the start with the new lender using their valuer (sometimes they value more favourably), stay put and negotiate with the current lender, or wait 6–12 months for the market to move.

Q: How long does the refinance process take?

Application to settlement is typically 3–5 weeks for a clean owner-occupier refinance in Queensland. Self-employed, trust structures, or properties with title complications add 1–3 weeks.

Q: Do I need to leave my current bank entirely?

Yes — refinancing means the new lender pays out the old loan in full at settlement, the old lender releases the mortgage, and the new mortgage is registered. Your everyday banking, however, can stay wherever it is. Many clients keep their existing transaction account and move only the home loan.

Q: Is it worth refinancing to consolidate credit card or personal loan debt into the home loan?

Sometimes, but the trap is stretching short-term debt over 25–30 years. If you consolidate a $15,000 credit card into a 25-year home loan, you might reduce monthly repayments but pay two to three times the total interest. Consolidation only makes sense with a firm plan (and preferably an extra-repayment arrangement) to pay off the consolidated portion in 3–5 years. We run this maths for every client considering it.

Q: My fixed rate expires in 8 months. When should I start looking?

Now. Ninety days out is the typical starting point but 6–9 months is even better if you want time to think. Rate negotiation, cashback timing, and full switch all take a few weeks each — you don't want to be rushed into a decision in the last month.

Working out your number

The signals checklist is a starting filter — the actual maths depends on your remaining balance, current rate, property value, and lender-specific offer. If you would like a genuine no-obligation review across our 50+ lender panel, book a free 20-minute chat with Karann and we will hand you a one-page comparison of your current loan against your top three refinance options, with the break-even period spelled out.

Last reviewed: 30 May 2026.

Sources used in this article:

• Reserve Bank of Australia — Cash rate and lending statistics
• Moneysmart — Refinancing your home loan
• APRA — Bank lending standards