Refinancing Your Home Loan – Is It Worth the Costs?

Refinancing often comes down to a simple question: will your savings outweigh the costs? If you secure a lower interest rate and stay in the loan long enough, the answer is usually yes. But you’ll need to check the fees, understand lender’s mortgage insurance implications, and work out your break-even point before you switch.

HomeLoanAI’s calculators and explainers help you compare scenarios so you can make an informed decision. We don’t promise approval or specific rates, and our results are estimates only – they aren’t a loan offer or personal advice. If you want credit assistance, we can connect you with a human broker through Arrivau Pty Ltd (Australian Credit Licence).

Why refinancing might save you money

Interest rates on variable home loans can differ by more than 2% between lenders. Even a 0.5% reduction can save thousands over the life of a loan. With the Reserve Bank of Australia having moved the cash rate higher three times already in 2026, it’s worth checking whether your current rate is still competitive. A mortgage switching calculator can show you exactly how much you might save.

The costs that can eat into your savings

Before you switch, add up every fee so your savings are real. Common costs include:

• Discharge (or termination) fees from your current lender
• Application fees (also called establishment fees) on the new loan
• Government stamp duty on the refinanced amount (check with your lender)
• A switching fee if you refinance internally with the same lender
• A break fee if you’re leaving a fixed-rate loan early

If your equity is less than 20%, you might have to pay lender’s mortgage insurance again, which can wipe out the benefit of a lower rate. In that case, ask your current lender whether part of the old LMI premium can be refunded.

The break-even point

A good way to test whether refinancing is worthwhile is to calculate how long it takes to recover your switching costs. For example, if switching saves you $280 a month and your total set-up costs are $600, you’ll break even in a little over two months – and every month after that puts you ahead. You can model this directly with a mortgage switching calculator.

Steps to take before you switch

1. Start with your current lender. Tell them you’re shopping around; they might lower your rate to keep your business. Having at least 20% equity and a healthy credit score puts you in a stronger negotiating position.
2. Check lender’s mortgage insurance (LMI). If you owe more than 80% of the property’s value, LMI may apply. That extra cost can make refinancing uneconomical.
3. Compare fees and features. Look at the comparison rate – a single figure that bundles the interest rate with most fees. Weigh up features such as offset accounts and redraw facilities. If you won’t use them, a basic loan might be cheaper.
4. Insist on a sensible loan term. Avoid stretching back to a full 30-year term. A longer term lowers monthly payments but adds years of extra interest.

Using comparison websites smartly

Comparison websites are a useful starting point, but they’re businesses that may earn money through promoted links and might not show every option. Check more than one site, and always get a personalised written quote from at least two lenders before committing.

How HomeLoanAI helps with the decision

Our interactive calculators and explainers give you a neutral base to compare scenarios – you can adjust rates, fees and loan lengths to see how each affects your repayments and total interest. They are general information only, not personal financial advice. When you’re ready to move forward, you can request a handoff to a licensed broker who can give you credit assistance.

Refinancing isn’t always the right move, but running the numbers often reveals a clear answer. Gather your loan details, estimate the costs, and plug them into a switching calculator to see where you stand.