Key Takeaway

Refinancing your Australian home loan involves switching to a new lender or product to secure a lower interest rate, better features, or more favourable terms. The process typically takes four to six weeks and can save you thousands of dollars over the life of your loan, but you must compare the comparison rate (not just the advertised rate), calculate any break costs if you are leaving a fixed-rate loan early, and confirm that the interest savings outweigh the switching costs before proceeding.

What You Will Learn

In this guide, you will learn how to assess whether refinancing suits your situation, compare lenders using the comparison rate, understand break costs and other fees, complete the application process step by step, and avoid common refinancing mistakes that erode your savings.

Step 1: Assess Whether Refinancing Makes Sense for You

Start by reviewing your current home loan: note your interest rate, loan balance, remaining term, and whether you hold a variable-rate or fixed-rate product. According to ASIC MoneySmart, refinancing typically delivers value when you can secure a rate reduction of 0.5 percentage points or more, though the exact threshold depends on your loan size and how long you plan to keep the property.

Calculate your potential savings using an online refinance calculator, then subtract the costs: application fees (typically A$300 to A$600), valuation fees (around A$200 to A$400), discharge fees from your current lender (A$150 to A$350), and any break costs if you are exiting a fixed-rate loan before its term ends. Break costs can run into thousands of dollars when interest rates have fallen since you fixed, so request a break-cost estimate from your current lender before deciding.

Step 2: Compare Lenders and Products Using the Comparison Rate

Do not rely on the advertised interest rate alone. The comparison rate incorporates most fees and charges over a standard loan term and gives you a more accurate picture of the true cost, as foundational texts such as Principles of Finance explain when discussing loan comparisons. Comparison rates are mandatory in Australian advertising but are calculated on a standard A$150,000 loan over 25 years, so your actual cost may differ if your loan size or term varies.

Use online comparison tools or consult a licensed mortgage broker to review variable-rate loans, fixed-rate loans (one to five years), and split loans (part variable, part fixed). Consider whether you need features such as an offset account (which reduces interest on your variable portion), a redraw facility (to access extra repayments), or the ability to make additional repayments without penalty.

Obtain formal quotes from at least three lenders and compare the comparison rate, ongoing fees, and product features side by side.

Step 3: Check Your Eligibility and Serviceability

Lenders assess your ability to service the new loan using current income, expenses, existing debts, and a serviceability buffer (typically 3 percentage points above the loan rate). They also review your credit file, so obtain a free copy from a credit reporting body before applying and correct any errors.

If your financial situation has changed since you took out your original loan (for example, reduced income, increased debts, or a drop in property value), you may not qualify for the same loan amount or the advertised rate. Self-employed borrowers often need two years of tax returns and financial statements, while PAYG employees typically supply recent payslips and an employment letter.

Step 4: Lodge Your Application and Provide Documentation

Once you have selected a lender, lodge a formal application. You will need to provide proof of identity (driver licence and passport or birth certificate), proof of income (payslips, tax returns, or financial statements), details of assets and liabilities, and recent bank statements (typically three to six months).

The lender orders a property valuation to confirm the loan-to-value ratio (LVR). If your LVR exceeds 80 per cent, you may be required to pay lenders mortgage insurance (LMI), which can add thousands to your upfront costs and may eliminate your refinancing savings.

Conditional approval (pre-approval) typically arrives within a few business days, but formal approval depends on the valuation and final credit checks. The entire process usually takes four to six weeks from application to settlement.

Read also: How to Refinance Your Australian Home Loan and Save on Interest in 2026

Step 5: Settle the New Loan and Discharge the Old One

Once your new loan is formally approved, your new lender prepares settlement documents and coordinates with your current lender to discharge the old mortgage. You will sign the new loan contract and authority forms, and the new lender transfers the funds to pay out your existing loan on the agreed settlement date.

After settlement, your old loan is closed, the new loan is registered on the property title, and you begin making repayments to the new lender. Set up direct debits immediately to avoid missing the first payment, and confirm that any offset account or redraw facility is active if those features were part of your new loan.

Practical Tips for Maximising Your Refinancing Savings

Negotiate with your current lender first: if you have a strong repayment history, they may match a competitor’s rate to retain you, saving you the cost and effort of switching. Time your refinance to avoid break costs: if you are on a fixed rate, wait until the fixed term expires or calculate whether the interest savings over the remaining loan term exceed the break cost. Refinance before your financial situation changes: lenders assess your current serviceability, so apply while your income is stable and your credit file is clean.

Common Mistakes to Avoid When Refinancing

Focusing only on the interest rate and ignoring the comparison rate and fees. Underestimating break costs on fixed-rate loans, which can exceed A$10,000 when rates have dropped significantly since you fixed. Refinancing too frequently, as each switch incurs application, valuation, and discharge fees that compound over time. Extending your loan term back to 30 years every time you refinance, which lowers your monthly repayment but dramatically increases the total interest you pay over the life of the loan. Keep your term aligned with your original end date to maximise savings.

Frequently Asked Questions

How much can I save by refinancing? Savings depend on your loan balance, the rate reduction you secure, and your remaining loan term. A 0.5 percentage point reduction on a A$400,000 loan can save around A$1,000 per year, or over A$20,000 across a 25-year term, though you must subtract switching costs from this total.

Can I refinance if my property value has dropped? If your property value has fallen and your LVR now exceeds 80 per cent, you may face LMI or be unable to refinance at the advertised rate. Some lenders offer refinance products for higher LVRs but at less competitive rates.

Should I use a mortgage broker? A licensed mortgage broker compares products across multiple lenders, handles the application paperwork, and may access rates not available directly to consumers. Brokers are typically paid by the lender, though you should confirm any fees before engaging one.

Conclusion

Refinancing your Australian home loan can deliver substantial interest savings, better loan features, and improved cash flow, but only if the comparison rate, fees, and break costs stack up in your favour. Compare at least three lenders, check your serviceability before applying, and time your switch to avoid unnecessary penalties. If the numbers make sense, refinancing is one of the most effective ways to reduce your long-term borrowing costs. For personalised advice on your situation, consult a licensed mortgage broker or lender.

General Advice Warning: The information in this article is general in nature only and does not consider your objectives, financial situation, or needs. Refinancing suitability, eligibility, rates, fees, break costs, and loan features vary by lender, product, and your personal circumstances. You should consider obtaining personal advice from a licensed mortgage broker or financial adviser before acting on this information. This is not personalised financial, lending, or legal advice. Interest rates, comparison rates, and lending criteria are as of July 2026 and change frequently; verify current terms with a licensed lender or broker before making any decision.