Home Loan Refinancing Costs: Fees and Savings Explained

Home loan refinancing costs can turn an attractive rate into a disappointing result if you only compare the monthly repayment. The useful calculation has three parts: what it costs to leave, what it costs to start again, and what the new loan saves over a comparable period. Keep the remaining term the same before deciding whether a lower repayment is a genuine saving.

Quick answer

Home loan refinancing costs can include discharge, application, valuation, legal or settlement charges, government registration fees and fixed-rate break costs. Compare these with savings over the same remaining loan term. A lower monthly repayment caused by extending the term is not the same as paying less interest overall.

Home loan refinancing costs: collect both sides of the quote

Ask your existing lender for the costs of paying out the loan on the proposed date. Then ask the new lender for the costs of establishing and settling the replacement loan. Some charges are fixed, while others depend on timing, valuation or the transaction itself.

Moneysmart’s switching guide identifies costs such as discharge fees, application charges and fixed-rate break costs, and recommends comparing the overall outcome. Do not assume a no-application-fee promotion removes every other expense associated with the switch.

Make a worksheet with the amount, who charges it, when it is payable and whether it is being added to the loan. A cost rolled into the balance can feel invisible on settlement day, but it still affects the amount borrowed and future interest.

The main cost categories

Ask whether the quote includes taxes and third-party costs where applicable. Do not label every government charge as stamp duty or assume a simple refinance has the same charges as purchasing a property. Obtain the relevant transaction-specific figures.

Fixed-rate loans need a dated break-cost estimate

If any part of the current loan is fixed, request a payout calculation rather than estimating the break cost from a generic online example. The amount can depend on contract terms, timing and market conditions. Ask when the estimate expires and whether it will be recalculated at settlement.

Compare at least two timings if appropriate: switching now and waiting until the fixed period ends. Include the cost of remaining on the current loan in the meantime, not just the avoided break fee. A low break cost does not automatically make an immediate switch worthwhile, and a large one may materially change the decision.

Check additional-repayment limits and other conditions before making a large payment in preparation for refinancing. Do not assume money can be moved freely simply because settlement is approaching. Get the current lender’s written instructions for the intended transaction.

Use the same remaining term first

If 22 years remain on your mortgage, compare the proposed loan over 22 years before considering a new 30-year term. Extending the term may improve monthly cash flow, but part of that reduction comes from repaying principal more slowly rather than from a better price.

Use Moneysmart’s mortgage calculator to compare repayment and total-interest scenarios with consistent inputs. Keep interest-rate assumptions visible. A long-term projection at one unchanged variable rate is an illustration, not a forecast of future rates.

If a longer term is necessary for affordability, recognise it as a separate trade-off. Ask how extra repayments could affect the outcome and whether you can maintain the old repayment when finances permit. Do not describe the whole monthly reduction as a saving without showing the longer repayment period.

A simple payback estimate

Suppose switching costs an invented $1,800 and the new loan is expected to reduce interest and ongoing fees by about $100 a month under a like-for-like comparison. The simple payback period is 18 months. If you expect to sell in nine months, those assumptions would not recover the upfront cost in time.

This calculation is only a first screen. Mortgage balances fall, rates can change and fees can be financed. For a more complete comparison, model the cash flows and remaining balance over the period you expect to hold the loan. A lower payment can leave a higher balance, so compare both.

Do not use the entire repayment difference as the monthly saving if the term, repayment type or borrowed amount changes. Ask the lender or broker to separate interest, fees and principal reduction. That prevents a debt-extension effect from being presented as a price reduction.

Equity and valuation can change eligibility

The new lender assesses the property and proposed loan under its own policy. Its valuation may differ from your estimate or a property website. That can affect the loan-to-value ratio, available rate and whether LMI or another low-equity cost is relevant.

Ask for the outcome before treating an advertised rate as available to you. A quote for borrowers with more equity may not apply to your application. Also ask what happens if the valuation is lower than expected: can you contribute cash, choose another product or stop without incurring additional costs?

Do not assume an LMI premium paid years ago transfers to the new lender. Treat any new requirement as a transaction-specific question. If it materially changes the cost, compare remaining with the current lender or waiting while the balance reduces.

Offset and redraw can change the useful saving

Compare the features you actually use. If the current loan has a substantial offset balance, replacing it with a lower-rate loan without an equivalent offset may not reduce interest as much as the headline rate suggests. Keep the same cash assumptions in each scenario.

Our offset versus redraw guide explains the access and structural differences. Ask what happens to the existing offset account and redraw balance at settlement. Record which cash is being used to reduce the new loan and which remains available separately.

Check package fees, account fees and any rate premium for the required features. A feature-rich product can be worth paying for if you use it, but it should earn its place in the calculation. Avoid paying for a bundle solely because the discount looks large.

Compare a no-switch option

Ask the current lender for a retention rate and the cost of moving to another suitable product internally. That provides a useful third option alongside staying unchanged and refinancing externally. It may involve less administration, but confirm whether features or terms change.

Compare the written retention offer, not a verbal possibility. Note when the new rate would begin and whether a fee applies. If the current lender matches part of the external saving without most switching costs, the best outcome may not require a new lender.

Our comparison rate versus interest rate guide explains how advertised rates help with initial screening. For the final refinance decision, actual fees and your loan amount matter more than relying on a standard comparison example alone.

Keep incentives in perspective

A refinance cashback or fee waiver can improve the result if you qualify. Check minimum loan size, settlement deadline, eligible borrower type and any conditions about previous customers or related offers. Count the benefit once and only when the timing and eligibility are realistic.

Compare the loan without the incentive too. That reveals whether the ongoing price is competitive. If you intend to refinance repeatedly for promotions, remember that each application and transaction has costs, assessment requirements and administrative risk; future approval is not guaranteed.

Do not let a deadline rush the document checks. Verify payment instructions through trusted lender or conveyancer channels, especially if bank details arrive by email. A legitimate refinance still requires careful handling of identity and settlement information.

A final decision checklist

Confirm the total switching cost, new rate, remaining term, repayment type, features, equity assessment and expected holding period. Ask for a comparison of total payments and remaining debt over that period. Keep an emergency cash allowance separate from any money you plan to contribute at settlement.

If affordability is the problem, discuss it with the lender and seek appropriate financial counselling or licensed credit assistance. Refinancing is not always available or the right response to repayment stress. Browse the CompareUs guide library for related explanations; this article does not offer a home-loan approval or a whole-market loan comparison.

Sources and review

The CompareUs Editorial Team checked Moneysmart’s switching guidance, loan-selection guidance and mortgage calculator on 27 September 2026. Examples are hypothetical and are not financial or credit advice tailored to you. Obtain current written figures from the lenders and appropriate professional advice for the proposed transaction.