If your mortgage sits above $1 million, refinancing in Sydney is a different exercise to what you’ll read in a generic comparison site article. The numbers move differently, lender appetite varies, and the potential savings — and pitfalls — are magnified at scale.
Here’s what you actually need to know before you refinance a large loan in 2026.
The Savings Case Is Stronger, But So Is the Risk of Getting It Wrong
On a $1.5 million loan, a 0.30% rate reduction saves you around $4,500 per year in interest. Over a 5-year period, that’s $22,500 — before compounding. At this loan size, leaving money on the table because you haven’t reviewed your rate isn’t a minor inconvenience, it’s a material financial loss.
But the same scale that makes savings significant makes mistakes expensive. Break costs on a fixed loan at this size can run into tens of thousands. A poorly timed refinance — or one that triggers LMI — can cost more than you save.
Lenders Mortgage Insurance Doesn’t Apply Over 80% LVR
If your property has grown in value since you purchased, your LVR (loan-to-value ratio) may have dropped below 80%, even on a large loan. Sydney property values in many suburbs have appreciated significantly over the past few years — which means refinancing without triggering LMI is more achievable than it was.
Before you start the process, get a current market appraisal on your property, not just the council rates notice. Lenders use their own valuations, and a strong result can open access to premium rates previously locked behind higher LVR pricing.
Serviceability Is Assessed Fresh Every Time
Don’t assume that because a lender approved you years ago, another will today. Lenders assess serviceability at the time of the new application — including the 3% buffer — so even if your income hasn’t changed, your borrowing capacity under current criteria may be different.
If your income structure has become more complex (you’ve gone self-employed, added investment income, or changed roles), work with a broker who can identify which lender’s assessment methodology fits your current situation. Some lenders use 2-year averages for variable income; others use the most recent year. That difference can be the gap between approval and decline.
Cash-Out Refinances: Clean Structuring Matters
Many Sydney borrowers refinancing at this loan size are also looking to release equity — for renovations, investment, or business. Be clear on the purpose, because it affects which lender you approach, what rate you get, and how the ATO treats the interest.
Equity pulled for investment purposes generally retains deductibility. Equity used for personal spending does not. If you’re planning a cash-out as part of your refinance, get your accountant across it before settlement, not after.
The Switching Cost Calculation
Before you refinance, do the full math:
- Discharge fee from current lender (typically $150–$400)
- Break cost if you’re fixed (can be substantial — get a written quote)
- Application/establishment fees with the new lender
- Valuation fee (often waived for competitive refinances)
- Time: refinancing typically takes 4–8 weeks from application to settlement
Net that against your projected annual saving. If you’re saving $6,000 per year and the total switching cost is $2,500, you’re ahead in five months. If break costs are $18,000, it’s a different calculation entirely.
Don’t Negotiate Just on Rate
At this loan size, the features matter too. Offset account access, repayment flexibility, the ability to split the loan, redraw limits, and how the lender handles future equity access all contribute to the value of the facility — not just the rate in the headline.