Should You Refinance Your Mortgage in 2026? A Step-by-Step Guide

14 March 2026|6 min read

A step-by-step guide to refinancing your home loan in 2026. Covers when it makes sense, break costs, comparison rates vs headline rates, cashback traps, and what banks look for.

When refinancing your mortgage makes sense

Refinancing — switching your home loan from one lender to another — can save you tens of thousands of dollars over the life of your mortgage, but only if the circumstances are right. The most common trigger is finding a lower interest rate. In 2026, with rates ranging from 5.5% to 6.8% across lenders, even a 0.30% rate reduction on a $500,000 loan saves approximately $1,500 per year or $45,000 over 30 years. Refinancing also makes sense when you want to access equity for renovations, debt consolidation, or investment purposes, when your current lender will not match competitor rates despite your requests, when you want to switch from a variable to a fixed rate (or vice versa) to manage interest rate risk, when you have built up enough equity to remove LMI loading from your rate, or when you want features your current loan does not offer, such as an offset account, redraw facility, or the ability to split between fixed and variable. The general rule of thumb is that refinancing is worthwhile when the ongoing savings exceed the switching costs within 12 to 18 months.

Understanding break costs and switching fees

Before refinancing, you need to calculate the total cost of switching to ensure the savings outweigh the expenses. Discharge fees from your current lender typically range from $150 to $400. Government fees for registering the new mortgage vary by state — in NSW, the discharge and registration fees total approximately $300 to $500. Your new lender may charge an application or establishment fee of $0 to $600. If you are on a fixed-rate loan, this is where costs can escalate dramatically — break costs (also called early repayment costs) compensate the lender for the interest income they lose when you exit a fixed-rate contract early. Break costs are calculated based on the difference between your fixed rate and the current wholesale rate, multiplied by the remaining fixed term and loan balance. These costs can range from a few hundred dollars to $20,000 or more, particularly if rates have fallen since you fixed. Always request a formal break cost quote from your lender before proceeding — it is free to ask and the number may surprise you. For variable-rate loans, there are no break costs, making the decision to switch much more straightforward.

Comparison rates vs headline rates: what you actually pay

When comparing home loans, the advertised headline rate tells only part of the story. The comparison rate, which lenders are required to display alongside the headline rate, incorporates the interest rate plus most fees and charges associated with the loan, expressed as a single percentage. A loan with a 5.79% headline rate and $395 annual fee might have a comparison rate of 5.89%, while a competitor at 5.85% with no fees has a comparison rate of 5.85% — making the second option cheaper despite the higher headline rate. However, comparison rates have limitations. They are calculated on a standard $150,000 loan over 25 years, which does not reflect most borrowers' actual loan sizes. Fees have a proportionally larger impact on smaller loans, so the comparison rate overstates the cost difference for larger loans. Comparison rates also exclude offset account benefits, redraw facility charges, and package fee discounts that may apply. The best approach is to compare the total cost of each loan over your expected loan term, factoring in your actual loan amount, any offset balances, and all fees. Our Mortgage Calculator can help you model the true cost of different loan options side by side.

Cashback offers: generous incentive or hidden trap?

Many lenders offer cashback incentives of $2,000 to $6,000 to attract refinancers, and in 2026 these promotions remain common in a competitive lending market. On the surface, receiving $4,000 to switch lenders seems like free money — but it is essential to look beyond the cashback to the overall loan cost. Some lenders inflate their interest rate or include higher ongoing fees to fund the cashback, meaning you pay back that $4,000 (and more) through higher repayments over time. Others offer the cashback only on larger loan balances ($250,000+) or require you to stay for a minimum period (usually 12 to 24 months) or repay the cashback if you leave early. A genuinely good cashback deal combines a competitive interest rate with the cashback — essentially giving you a bonus on top of an already strong rate. To evaluate, calculate your annual interest cost with the cashback lender versus the best rate without a cashback. If the cashback lender costs you an extra $1,200 per year in interest, that $4,000 cashback is only worth about three years of savings — after that, you are paying more. Always prioritise the ongoing rate over one-off incentives.

The switching process: step by step

Refinancing is more straightforward than most people expect and typically takes 4 to 8 weeks from application to settlement. Step one: research and compare loans using our Mortgage Calculator and borrowing power tools — shortlist two to three lenders with competitive rates for your loan type. Step two: apply to your chosen lender, providing income verification (payslips, tax returns), current loan statements, identification, and a list of your assets and liabilities. Step three: the new lender orders a property valuation (usually at their cost) to confirm your property value and loan-to-value ratio. Step four: if approved, the new lender issues loan documents for you to sign. Step five: your new lender's solicitor or conveyancer coordinates with your current lender to arrange discharge and settlement — this is the date your old loan is paid out and the new one commences. Step six: your new loan begins and you start making repayments to the new lender. During this process, continue making repayments on your existing loan as normal. You do not need to notify your current lender that you are refinancing — the discharge process handles this automatically.

What banks look for when you refinance in 2026

Banks assess refinance applications using essentially the same criteria as new loan applications, so it is important to present a strong financial profile. Income stability is paramount — lenders want to see consistent employment (at least 6 to 12 months with your current employer for PAYG, 2 years of tax returns for self-employed). Your debt-to-income ratio matters more than ever in 2026, with most lenders capping total debt at 6 to 8 times your gross income. Your credit score should be clean — check your report with Equifax or illion before applying, and dispute any errors. Living expenses are scrutinised via bank statement analysis, so reduce discretionary spending (gambling, buy-now-pay-later, excessive dining out) in the three months before applying. Your loan-to-value ratio (LVR) determines your pricing tier — borrowers with less than 60% LVR get the best rates, 60% to 80% is standard, and above 80% requires LMI and carries higher rates. If your property value has increased since purchase, you may qualify for a better LVR band than you expect. Finally, demonstrate genuine savings and consistent mortgage repayment history — no missed or late payments on your current loan for at least 12 months.