A lower interest rate can look like an easy win, but the real question is whether the savings outweigh the costs to refinance a mortgage. That is where many borrowers get caught out. The headline rate matters, but so do the fees, timing, and the structure of the new loan.
If you are refinancing in Perth or elsewhere in Australia, it helps to look past the advertising and work through the numbers properly. Some refinance costs are relatively small and predictable. Others, especially on fixed-rate loans, can be significant. The right move depends on your current loan, how long you plan to keep the property, and what you want the new loan to do for you.
What are the costs to refinance a mortgage?
Refinancing usually involves closing one home loan and replacing it with another. That means there can be costs from your current lender, costs from your new lender, and government or settlement-related charges depending on the transaction.
The most common expense is a discharge or settlement fee charged by your existing lender to close out the loan. This is often modest, but it still needs to be factored in. Your new lender may charge application, settlement, valuation or ongoing package fees, although some lenders waive parts of these to attract refinancers.
Then there are the less obvious costs. If you are exiting a fixed-rate loan early, break costs can be substantial. If your loan has an annual package fee, you may pay that on the old loan and then start paying it again on the new one. In some cases, state government charges or registration fees can also apply.
The main refinance costs to expect
Discharge fees
A discharge fee is charged by your current lender for preparing and processing the closure of your mortgage. It is generally one of the smaller costs in the refinance process, but it is very common. Even if the amount is not large, it still reduces your short-term savings.
Loan application and settlement fees
Some lenders charge upfront fees to set up the new loan. These can include an application fee, settlement fee, or loan establishment fee. Not every lender charges all of them, and some offer refinance promotions that reduce or remove these costs.
This is where comparing lenders properly matters. A loan with a sharper rate is not automatically the cheaper option if the upfront costs are higher or if the fee structure becomes expensive over time.
Valuation fees
Your new lender will usually want a valuation of the property. Sometimes they cover the cost. Sometimes they do not. If the property is straightforward and fits the lender’s policy, the fee may be minimal or waived, but that is not guaranteed.
Valuation also affects more than cost. If the property comes in lower than expected, your loan-to-value ratio may rise, which can affect your rate, your borrowing power, or whether lenders mortgage insurance applies.
Government and registration costs
Depending on the state and how the mortgage is transferred, there may be registration or administrative charges. These are usually not the biggest part of the refinance bill, but they are part of the total cost and should not be ignored.
Annual package fees
Many home loans come with a package fee that covers features such as an offset account, credit card, or discounted rate. If you refinance, you may leave one annual fee behind and take on another. If the package features are useful, that may still make sense. If not, you could be paying for extras you do not need.
Break costs on fixed loans
This is the one borrowers need to treat carefully. If you refinance out of a fixed-rate home loan before the fixed period ends, the lender may charge a break fee. This amount can vary widely and is often much higher than standard discharge or application fees.
Break costs depend on factors such as your loan balance, the remaining fixed term, and how interest rate movements have changed since you took out the loan. In some cases the fee is manageable. In others, it can wipe out the benefit of refinancing altogether.
When refinance costs are worth paying
Paying costs to refinance a mortgage can still be the right financial move if the long-term savings are stronger than the upfront expense. A lower rate can reduce your monthly repayments, but that is only one part of the picture.
A refinance can also help if you want to consolidate higher-interest debts, switch from a restrictive loan to one with better features, remove a lender that no longer suits your needs, or access equity for renovations or investment. The value of refinancing is not always just the cheapest rate. Sometimes it is flexibility, cash flow, or a loan structure that better matches your goals.
For example, a family moving from a basic loan to one with a proper offset account may pay a package fee but save far more over time if they hold meaningful savings in that account. An investor might refinance to improve cash flow and free up borrowing capacity for the next purchase. In both cases, the costs matter, but so does the strategy.
How to work out if refinancing stacks up
The simplest way to assess a refinance is to calculate your break-even point. Start by adding up the total cost of exiting your current loan and setting up the new one. Then compare your expected monthly savings under the new loan.
If the refinance costs $1,500 and the new loan saves you $150 per month, your break-even point is around 10 months. If you expect to keep the loan well beyond that, refinancing may be worthwhile. If you are likely to sell, move again, or refinance again within a short period, the savings may never properly materialise.
That said, monthly repayments alone do not tell the full story. You also need to look at whether the new loan resets your term. A refinance that lowers repayments by stretching the loan back out to 30 years can feel helpful in the short term, but it may increase total interest paid unless you keep your repayments up.
Common mistakes borrowers make
One common mistake is focusing only on the advertised interest rate. Rates are important, but comparison rates, ongoing fees, loan features, and repayment flexibility all affect the true cost.
Another is ignoring fixed-rate break costs until late in the process. By that point, borrowers may have already committed time and energy to a refinance that does not make financial sense.
A third is refinancing for a cash rebate without looking at the bigger picture. Cashback offers can be useful, but they should not distract from the loan’s actual suitability. A quick incentive is not much help if the rate is uncompetitive or the loan features are wrong for your circumstances.
Why advice matters with refinance costs
Refinancing sounds simple from the outside, but there are several moving parts. Your equity position, income, living expenses, property value, credit history, and future plans all affect which options are available and which costs are worth paying.
That is why clear advice matters. A good broker does more than find a lower rate. They help you compare the real cost of switching, assess whether the numbers stack up, and identify lenders whose policies fit your situation. For borrowers who want confidence before making a change, that process can save both money and unnecessary stress.
In practice, the best refinance decision is rarely about chasing the lowest number on a screen. It is about choosing a loan that fits where you are now and where you want to be next. If the savings are real, the features are useful, and the costs are understood upfront, refinancing can be a smart step rather than an expensive detour.