Deciding whether to refinance your home loan comes down to a single question: will the long-term savings outweigh the upfront and ongoing costs? The answer depends on comparing your current loan with the new offer, tallying every fee, and working out how long it takes to recover those costs through lower repayments.

Start by listing every cost you’ll face
Refinancing isn’t free, and the expenses can erode the benefit of a lower interest rate if you’re not careful. Common costs include:

  • Discharge fee – charged by your current lender to close the loan.
  • Break cost – may apply if you’re leaving a fixed-rate loan early.
  • Application or establishment fee – paid to the new lender to set up the loan.
  • Valuation fee – the new lender may require a property valuation.
  • Ongoing fees – monthly or annual service fees on the new loan.
  • Lenders Mortgage Insurance (LMI) – if your new loan-to-value ratio exceeds 80%, you may pay LMI again.

Add these up to get your total refinancing cost. Then look at what you’ll save. The most straightforward saving is a lower interest rate, which reduces your monthly repayment. A comparison rate can help you see the true cost of a loan because it bundles the interest rate with most fees into a single percentage figure. When comparing loans, use the comparison rate rather than the advertised interest rate to avoid surprises.

Calculate your break-even point
Take your total refinancing cost and divide it by the monthly saving you’ll get from the new loan. The result is the number of months it takes to recover your costs. For example, if your costs total $2,000 and you save $100 per month, your break-even is 20 months. If you plan to stay in the home beyond that, refinancing could make financial sense. If you might sell or move sooner, the costs probably outweigh the benefit.

Factor in your loan term and features
Extending your loan term when you refinance can lower monthly repayments but increase the total interest paid over the life of the loan. A shorter term may raise monthly payments but cut long-term costs. Think about which trade-off works for your circumstances. Also weigh the value of features such as offset accounts or redraw facilities. They can add flexibility and reduce interest if used consistently, but they often come with higher fees. If you wouldn’t maintain a meaningful offset balance or use the redraw, a basic loan with a lower rate could be the better deal.

Check your timing
Refinancing tends to be most attractive when market rates have dropped significantly below your current rate, or when your financial situation has improved enough to qualify for a sharper offer. Even a rate reduction of 0.5% can add up to thousands of dollars over a 25- or 30-year loan. If you’re on a fixed rate, wait until the fixed period ends to avoid break costs unless the savings clearly justify paying them.

How LoanOffer helps with the decision
LoanOffer is an educational comparison resource that lets you compare home loan offers and run refinancing scenarios. You can evaluate different rates, fees, and loan features side by side, and use a straightforward cost-benefit approach to see whether switching makes sense. LoanOffer does not lend money, arrange loans, or provide personal financial advice. It does not promise any particular rate, saving, or loan approval. The information is designed to support your own research so you can approach a lender or broker with a clear picture of what you need.

A practical checklist before you commit

  • Obtain a payout figure from your current lender, including any discharge or break fees.
  • Request a written quote from at least two potential lenders, showing the comparison rate and all fees.
  • Use the break-even formula to see how long recovery takes.
  • Consider whether you’ll stay in the property long enough to outlast the break-even period.
  • Decide which loan features you’ll actually use and whether they’re worth the extra cost.

Refinancing can be a powerful tool to reduce your mortgage burden, but only when the numbers stack up. By calculating your break-even point and looking beyond the headline rate, you’ll be in a far better position to make a decision that aligns with your long-term goals.