The median Brisbane house added roughly $166,000 in value in the year to June 2026, on Cotality's numbers. That growth is equity. And equity, borrowed against the home you already own at home-loan rates, is the cheapest large sum most Australians will ever get their hands on.
Getting it out is where people come unstuck. Search "home equity loan vs refinance" from Australia and half of what you'll read is American, describing products local lenders don't sell. Three real structures exist here. They release the same dollars at very different lifetime costs, and the structure you pick matters more than the rate you're quoted, because the wrong one can cost you a five-figure tax deduction later.
The timing is unusual, too. The RBA lifted the cash rate in February, March and May 2026, held it at 4.35% in June, and meets again on Tuesday 11 August 2026. Meanwhile Cotality's June figures describe a two-speed market: Perth up 23.9% and Brisbane up 17.4% over the year, Sydney and Melbourne going backwards. In half the country usable equity is compounding monthly; in the other, the valuation you'd get today may beat December's. Sequence matters.
Home equity loan vs refinance vs line of credit: what does each mean in Australia?
Start with the names, because two of the three are imports.
A cash-out refinance is the local workhorse: you replace your existing loan with a bigger one, and the difference lands in your account as a lump sum. Lenders here call it "cash out" or a top-up. A home equity loan, in the American sense, is a fixed-rate second mortgage; the closest thing here is a separate loan split, a second facility secured by the same property with its own balance, rate and repayments. A line of credit is a revolving limit secured by your home. Draw what you need, repay when you like, and pay interest only on the drawn balance, at a rate typically 0.5 to 1.5 percentage points above standard variable.
| Cash-out refinance | Separate split | Line of credit | |
|---|---|---|---|
| How the money arrives | Lump sum at settlement | Lump sum, own facility | Drawn as needed, up to a limit |
| Repayments | Principal and interest on the whole new loan | Own term; P&I or interest-only | Usually interest-only on the drawn balance |
| Typical pricing | Sharpest of the three | Standard variable range | 0.5 to 1.5 points above standard variable |
| Tax bookkeeping | Blended, unless you split | Clean; one purpose per account | Messy once purposes mix |
| Best for | One big purpose plus a rate reset | Separating deductible from private debt | Uncertain amounts, staged spending |
New to equity itself? Our complete guide to home equity and the three main access paths cover the foundations; this article is the decision layer on top.
When does a cash-out refinance make the most sense?
When there's one purpose, one number, and your existing rate deserved scrutiny anyway. A cash-out refinance rolls the new borrowing and the old loan into a single facility, usually at the sharpest rate of the three structures, and it forces a full reprice of everything you already owe. If your rate has drifted since settlement, that reprice can fund a decent slice of the release on its own; should you refinance walks through that maths separately.
One catch surprises people. The new lender assesses the entire enlarged loan, not just the extra slice, at your actual rate plus APRA's 3% serviceability buffer. A $710,000 loan at an illustrative 6.10% variable (not a quoted offer; rates and comparison rates vary by lender, as at July 2026) is tested at 9.10%. Your income hasn't changed; the hurdle has. Some borrowers who could comfortably service the extra $150,000 still get declined on the full amount, which is why the Wity Borrowing Power Assessment models the enlarged loan across 45+ lenders' policies before anything is lodged, not after one bank has said no.
Credit teams also read purpose harder as the cash-out figure climbs. We've seen a $150,000 release stall for weeks because the stated purpose was "future investment", while the same figure with a signed builder's contract attached moved without a single question.
One more discipline: resist the urge to blend. Pour a renovation, a car and a future investment deposit into one loan and you've built a mixed-purpose facility the ATO will make your accountant apportion for as long as the loan exists.
Why do brokers keep steering people toward a separate split?
Because it solves the tax problem before it exists. A split is a second loan account behind the same front door. Own balance, own rate, own repayment type. Your $560,000 home loan stays untouched while a $150,000 split sits beside it, and every dollar of interest traces cleanly to one purpose, which matters most the day any of the money starts earning income. A split that funds an investment deposit stays fully deductible on its own account, the whole premise of using equity to buy an investment property. Each split can also carry the repayment type its purpose deserves; a private renovation usually suits principal and interest over a shorter term, while an investment slice is the interest-only vs principal and interest conversation.
The trade-off is small. No new lender, lighter paperwork, though a top-up still gets assessed under the same 3% buffer. What you give up is the forced reprice: a stale rate on the existing balance stays stale unless you raise it yourself, because a top-up never forces that conversation the way a full refinance does.
When is a line of credit worth its higher rate?
Less often than it used to be. The offset account is the reason: park a cash-out lump sum in a 100% offset and you pay interest only on what the builder has invoiced, which is the line of credit's party trick, delivered at a lower rate. The revolving structure earns its premium in narrower cases: the total cost is unknown up front, the spending runs across years rather than months, or you want a limit you can reuse without reapplying.
There's also a behavioural cost. A line of credit never amortises unless you make it, and the limit sits there, fully available, every day, for the rest of the loan. It's a tool for people with a plan and a spreadsheet; without both, it's a very large, very slow credit card secured by your house.
Same $150,000, three structures: Anita and Josh in Kedron
Anita is a physiotherapist, Josh runs a warehouse. Their house in Kedron, on Brisbane's northside, is worth $1,000,000 with $560,000 owing, and their renovation quote is $150,000 across five progress payments over ten months. Illustrative rates: 6.10% variable, 7.00% line of credit (not quoted offers, as at July 2026).
Path A, cash-out refinance to $710,000: the $150,000 waits in offset and is drawn as invoices arrive, so idle money costs nothing. Repricing their four-year-old rate saves about $1,400 a year on the existing $560,000. The price of admission is a full application, with all $710,000 tested at 9.10%.
Path B, a $150,000 split with their current lender: the same offset trick, a clean single-purpose account, and a lighter process. The stale rate on the $560,000 survives, and that $1,400 a year quietly compounds against them.
Path C, a $150,000 line of credit: interest-only, on drawn funds only, at 7.00%. Once fully drawn it costs about $10,500 a year against $9,150 on the same balance at 6.10%, a $1,350 annual premium with no repayment schedule forcing the balance down. Left unrestructured for a decade, that's roughly $13,500 in extra interest.
The gap: Path C's flexibility has a running cost of about $110 a month. Worth it if they'll redraw for stage two of the reno in 2028; dead weight if the limit sits idle.
Based on typical scenarios. Individual outcomes vary.
How much equity will a lender actually let you touch?
The equity in your banking app is not the equity you can spend. The app shows value minus debt: $440,000 for Anita and Josh. Lenders lend to a ceiling, and most draw that line at 80% of the property's value for a release without LMI, which cuts the couple's usable equity to $240,000.
Under specialist lending policies available through Wity, any borrower can take that ceiling to 85% with no LMI, turning $240,000 of usable equity into $290,000 and skipping the roughly $12,000 to $16,000 in LMI most lenders charge on a loan that size in that band. For nurses, midwives and allied health professionals like Anita, the no-LMI threshold rises to 90%, and for doctors and dentists, 95%.
Structure belongs in the loan design, not as an afterthought at settlement. That's what the WityLoanPlan is for: the digital proposal your Wity broker builds before anything reaches a lender, showing which facility carries which purpose, where the offset sits, and what each path costs, versioned and yours to interrogate. And if your current lender won't do a clean split or prices the release poorly, a refinance puts 45+ lenders' versions of all three structures on the table.
Weighing an equity release this year? Start the Wity questionnaire → and we'll model all three structures against your actual numbers. Free, and you'll leave knowing your usable equity either way.