When does it make sense to refinance your mortgage?
You should refinance when the difference in what you currently pay and what you could pay covers the cost of switching within 12 to 18 months. A home loan health check once a year helps you spot the moment when rates, lender policies, or your own circumstances have shifted enough to justify a move.
Consider a borrower with a $450,000 loan who locked in a fixed rate three years ago at 2.4%. That fixed rate period is ending, and the lender's standard variable rate sits around 6.3%. Rolling onto that rate means paying roughly $900 more each month compared to switching to a lender offering 5.9% on a similar product. Over 12 months, that adds up to over $10,000 in unnecessary interest. Refinancing here is not about chasing the absolute lowest rate on the market. It is about avoiding a sharp jump when your current arrangement expires.
Coming off a fixed rate period
The end of a fixed rate period is one of the clearest signals to review your loan. Lenders typically roll you onto their standard variable rate, which can be significantly higher than what new customers are offered. You are not locked in once the fixed term ends, and you are not obligated to stay.
In our experience, borrowers who wait until after the fixed rate has rolled over often lose a month or two of lower repayments because the refinance process takes time. Starting the conversation three months before your fixed rate expires gives you enough runway to compare offers, lodge an application, and settle the new loan without paying the higher rate for longer than necessary. Some lenders charge break costs if you exit a fixed rate early, so timing the switch to coincide with the expiry avoids that penalty entirely.
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Releasing equity to fund another property purchase
Refinancing is not always about lowering your interest rate. If you have built up equity in your property and want to access it for a deposit on an investment property or another purchase, refinancing lets you restructure the loan and release that equity as usable funds. This is often called a cash out refinance.
Say you own a property valued around the median for your suburb and owe $300,000 on the mortgage. If the property has increased in value and you now have $200,000 in equity, you can refinance to access a portion of that equity without selling. Lenders will typically let you borrow up to 80% of the property's value, sometimes higher depending on your situation. That equity can be used as a deposit for your next property, meaning you do not need to save another deposit from scratch. The refinance application will include a property valuation to confirm the current value, and the loan amount increases to reflect the equity you are drawing out.
Moving to a loan with an offset account or redraw
If your current home loan does not include features like an offset account or redraw facility, refinancing can give you access to those without waiting for your lender to offer them. An offset account reduces the interest you pay by offsetting your savings balance against your loan balance. A redraw lets you access extra repayments you have made above the minimum.
These features improve cashflow and reduce the total interest paid over the life of the loan. Some lenders charge higher rates for loans with offset accounts, so the refinance process involves weighing the rate difference against the value of the feature. For borrowers who keep a decent buffer in savings or regularly make extra repayments, the offset account often pays for itself within the first year.
Consolidating debts into your mortgage
If you are carrying personal loans, car loans, or credit card debt with higher interest rates, refinancing your mortgage to consolidate those debts can reduce your overall repayments. The interest rate on a home loan is typically much lower than the rate on unsecured debt, and rolling those balances into your mortgage spreads the repayments over a longer term.
The trade-off is that you are securing previously unsecured debt against your property, and extending the repayment term means you may pay more interest over time even though the monthly repayment drops. This approach works when cashflow is tight and you need breathing room, or when the interest rate gap between your mortgage and other debts is wide enough to make the switch worthwhile. The refinance application will include the debts you want to consolidate, and the new loan amount will cover both your existing mortgage and the balances you are paying out.
Switching between fixed and variable interest rates
Your circumstances and the interest rate environment change, and your loan structure should reflect that. If you are on a variable rate and want certainty over your repayments for the next few years, switching to a fixed rate locks in your repayments regardless of what happens with the Reserve Bank. If you are coming off a fixed rate and prefer flexibility, moving to a variable rate gives you the option to make extra repayments without penalty and take advantage of rate drops when they happen.
Refinancing to switch between fixed and variable does not always mean changing lenders. Some lenders will let you restructure your existing loan, though the rate they offer on a new fixed term may not be as sharp as what you could get by refinancing elsewhere. A loan review with a mortgage broker helps you compare both options without committing to either until you have seen the numbers.
Accessing lower interest rates as your equity increases
Lenders price home loans based on risk, and one of the biggest factors in that calculation is your loan-to-value ratio. If you have paid down your loan or your property has increased in value, your equity position improves and you may now qualify for a lower interest rate than when you first borrowed. Refinancing lets you access that lower rate without waiting for your current lender to offer it.
Lenders do not automatically reduce your rate as your equity grows. You have to ask, and often the only way to get a meaningful reduction is to switch lenders. This is particularly relevant for borrowers who started with a small deposit and have now moved below 80% LVR. The rate difference between an 85% LVR loan and a 75% LVR loan can be substantial, and refinancing captures that difference in your repayments.
When refinancing does not make sense
Refinancing is not always the right move. If you are planning to sell the property within the next 12 months, the cost of refinancing may not be recovered before you exit. If your current loan has a redraw facility with a large balance built up and switching lenders means losing access to that, the loss of flexibility might outweigh the rate saving. If you are still within a fixed rate period and the break costs are high, waiting until the fixed term ends is usually the more cost-effective option.
The refinance process also involves a property valuation, and if your property has dropped in value or not increased as expected, you may not have enough equity to refinance without paying lenders mortgage insurance again. Running the numbers before you start the application helps you avoid wasting time on a refinance that does not stack up.
Call one of our team or book an appointment at a time that works for you to run through your current loan and see whether refinancing makes sense for your situation right now.
Frequently Asked Questions
When should I refinance my home loan?
You should refinance when the savings from a lower rate or improved features cover the cost of switching within 12 to 18 months. A yearly loan review helps you spot the right moment.
What happens when my fixed rate period ends?
Your lender typically rolls you onto their standard variable rate, which is often higher than rates offered to new customers. Starting the refinance process three months before expiry avoids paying the higher rate for longer than necessary.
Can I refinance to access equity in my property?
You can refinance to release equity for a deposit on another property or other purposes. Lenders usually allow borrowing up to 80% of your property's value, and the process includes a property valuation.
Does refinancing always mean changing lenders?
Not always. Some lenders let you restructure your existing loan to switch between fixed and variable rates. However, refinancing to a new lender often gives you access to lower rates and additional features.
When does refinancing not make sense?
Refinancing may not be worthwhile if you plan to sell within 12 months, if break costs are high, or if your property value has dropped. Running the numbers first helps you decide whether the switch is cost-effective.
