Written by

Steven Lee

Mortgage Director, ODIN Mortgage & Tax

10+ years in Australian banking and mortgage lending

Last reviewed

Updated on: June 10, 2026 View profile →

Can You Refinance a Fixed Loan? Fixed Rate Mortgage Refinance

Many Australian homeowners locked into a fixed-rate mortgage are asking: “I’m tied in—can I really get a better deal now?” With Reserve Bank of Australia-influenced rate moves shifting fast, this question has never been so urgent.

Fixed-rate borrowers are watching new offers emerge — in August 2025, some lenders pushed fixed rates below 5 %, while most borrowers remain locked in higher ones. If you’re feeling stuck, you’re not alone — but there are options.

This guide is designed to help you unpack this complex decision: how to refinance a fixed loan, explore the real costs, and pick the right strategy for you. In short, you’ll walk away with a clear framework to decide whether making the switch is your smartest move.

Can You Refinance a Fixed Loan?

Yes, a fixed rate mortgage refinance is possible in Australia. However, the success of this decision depends on how and when you do it.

There are two main paths for refinancing a fixed loan: refinancing mid-term or refinancing at the end of your term.

Refinancing Mid-Term

You can refinance your loan before the fixed-rate period ends. However, this means you are “breaking” your contract with the lender.

This action will almost always trigger a significant penalty known as a “break cost” or “economic cost”. This fee can be thousands of dollars.

Only consider this path after detailed calculations. Confirm that the long-term savings from a new, lower rate will clearly outweigh this large upfront cost.

Refinancing at the End of Your Fixed Term

This is the most common and cost-effective approach to a fixed mortgage refinance. When your fixed term ends, you can switch without incurring break costs.

Fixed-rate terms in Australia typically last 1-5 years. The end-of-term period is the best time to reassess your options and secure a more competitive deal.

If you take no action, your loan will automatically roll over to your lender’s standard variable rate (SVR). This is often much higher than the rates offered to new customers.

Your lender must notify you before your term expires, and this letter is your signal to start shopping around. At this moment, your negotiating power is at its peak.

What Are Break Costs and How Are They Calculated?

The biggest obstacle to refinancing a fixed mortgage mid-term is the break cost. This is the primary deterrent for switching.

A break cost is a fee charged by a lender to cover their financial loss when you pay out a fixed loan early.

When a bank gives you a fixed-rate loan, it often borrows those funds on the wholesale market for the same term to lock in its profit.

If you break the loan early and wholesale rates have fallen, the bank is left holding funds that cost them more than the current market rate; the break cost covers this difference.

How to Estimate Your Break Cost

The formulas banks use are complex, but you can get a reasonable estimate using simple online calculators.

It considers your loan balance, the remaining term, and the change in wholesale interest rates. If wholesale rates have risen, the break cost is often zero.

Here’s a simplified break cost calculation example.

Particulars	Amount / Details
Scenario	Aliya took out a $400,000 home loan, fixed for 5 years. The underlying wholesale swap rate at the time was 5% p.a. After 2 years, she decides to refinance. The current wholesale swap rate for a new 3-year term is now 3% annually.
Remaining Loan Balance	$387,208 (after 2 years of principal and interest repayments)
Interest Rate Differential	2.0% p.a. (5.0% − 3.0%)
Remaining Fixed Term	3 years
Estimated Break Cost Calculation	$387,208 × 0.02 × 3
Estimated Break Cost	$23,232.48

This is a simplified calculation for illustrative purposes. The lender determines the actual break cost based on their specific formula and the prevailing wholesale rates on the day the quote is issued.

👉 Learn more: Break Fee: What it is and How it Works for Australian Home Loans

Prepayment Thresholds

Most fixed-rate loans have a “prepayment threshold”. This is an amount you can repay early without triggering a break cost when refinancing.

This feature offers some flexibility to get ahead on your mortgage. Thresholds vary significantly between lenders, so it’s an important feature to compare.

Below are a few major bank prepayment thresholds on fixed loans.

Lender	Prepayment Threshold
Commonwealth Bank (CBA)	$10,000 per year of the fixed term.
Westpac (WBC)	$30,000 total over the entire fixed period.
National Australia Bank (NAB)	$20,000 total over the entire fixed period.
St.George Bank	$30,000 total over the entire fixed period (for loans from 18 August 2019).
ANZ	For personal loans, the lesser of 5% of the loan balance at the start of the fixed-rate period or $10,000 per year.

Please refer to the lenders’ official websites for the latest information.

A Checklist of All Potential Refinancing Fees

The break cost is usually the largest fee, but it’s not the only one. A complete cost-benefit analysis must include all transactional costs.

When planning a fixed home loan refinance, you must account for these other potential charges.

Discharge Fee: Charged by your old lender to close your loan, typically around $350.
Application/Establishment Fee: Charged by your new lender to set up the loan, ranging from $0 to over $600.
Valuation Fee: Your new lender will need to value your property, costing between $100 and $600, though it’s often waived.
Mortgage Registration Fee: A state government fee to register the new mortgage against your property title, usually around $300.
Lenders Mortgage Insurance (LMI): If your equity is less than 20% (an LVR above 80%), you will likely need to pay LMI again, which can cost thousands.

👉 Explore further: How Much Does It Cost to Refinance a Home Loan?

Refinancing a Fixed Home Loan as an Australian Expat

Refinancing an Aussie mortgage from overseas is possible but comes with unique challenges. Lenders view non-resident applications as more complex and risky.

A specialised approach is required to navigate the more stringent assessment process successfully.

The Unique Challenges for Expats

The biggest hurdle for expats is proving their foreign currency income. Lenders are cautious about exchange rate fluctuations.

To mitigate this risk, they will typically discount your foreign income by up to 20% when assessing your borrowing capacity. Other challenges include:

Stricter Lending Policies: The expat lending landscape is a minefield, with some lenders not accepting applications from certain countries or for self-employed non-residents.
Higher Interest Rates & LVR Caps: Expats often face less competitive rates. They are also typically limited to a maximum of 80% LVR, meaning at least 20% equity is required.

Your Eligibility Checklist

To succeed, Australian expats need comprehensive documentation. Being well-prepared is key to a smooth application process.

A typical checklist includes:

Proof of Identity (Valid Australian passport)
Proof of Income (Current employment contract and recent payslips)
Proof of Overseas Residency (Valid visa or work permit)
Tax Returns from your country of residence
Detailed business financials for the past two years (for self-employed applicants)

👉 Learn more: Am I Eligible for Refinancing?

A specialised expat mortgage broker is recommended. They can prove to be an invaluable asset.

AU Expats—Refinance Hassle-Free from Overseas

Quick Guide to Refinancing a Fixed Loan

Once you decide to explore refinancing a fixed loan, the process follows a clear sequence.

A methodical approach will help you secure the best possible outcome.

1. Financial Health Check

Before speaking to lenders to refinance your fixed loan, conduct a thorough review of your finances. This internal step is the foundation for your journey.

Define your goal, whether it’s a lower rate, accessing equity, or consolidating debt.
Collate your income, expenses, assets, and liabilities, and check your credit score to avoid surprises.
Review your latest loan statement to understand your current rate and fees.

2. Comparison and Negotiation

With a clear financial picture, you can now explore the market. Use reputable online comparison tools to see what rates others are offering.

A crucial step is to negotiate with your current lender.

Contact their retention team, inform them you’re considering a fixed loan refinance, and present the competitive offers you’ve found. They may offer a significant rate reduction to keep your business.

3. Application

If your current lender can’t match a better offer, it’s time to apply elsewhere. This involves submitting a formal application to the new lender.

Gather all your financial documents, including identification, payslips, bank statements, and details of assets and liabilities.

You can submit the application directly or have a mortgage broker manage the process for you.

4. Valuation, Approval, and Settlement

This is the final stage of the process where the loan is finalised. It involves a few key actions from the new lender.

The new lender will arrange a formal valuation of your property to confirm its market value.

Once the valuation is done and all documents are verified, they will issue formal approval and send you the new loan contracts.

After you return the signed documents, the new lender coordinates with your old one to pay out the existing mortgage, and your refinance is complete.

👉 Learn more: Property Valuations & Appraisals for Refinancing

👉 Find out How to Refinance a Home Loan in Australia the smart way.

Is Refinancing Your Fixed Loan the Right Move for You?

Refinancing a fixed home loan is a powerful tool, but it’s not for everyone. It depends entirely on your individual circumstances, goals, and risk tolerance.

A final review of the key factors will help you weigh the pros and cons against your personal situation. Here’s a simplified matrix to help with your decision.

Factor to Consider	Potential Reasons to Proceed	Potential Reasons to Pause
Potential Savings	A significantly lower interest rate is available, leading to substantial monthly and long-term savings.	The available rate reduction is marginal, and the savings will take many years to recoup the costs.
Costs (Break Fees + Others)	You are at the end of your fixed term, so no break costs apply. Total fees are low or covered by a cashback offer.	You are mid-term, and the break cost is substantial, outweighing the potential savings for several years.
Loan Features	You have significant savings and need a 100% offset account to maximise interest savings. You want the flexibility of a redraw facility.	Your current loan meets your needs, and you do not require advanced features like an offset or redraw.
Accessing Equity	You have a clear plan to use the equity for a value-adding renovation or a well-researched investment property.	You are tempted to access equity for discretionary spending, which would increase your debt without generating a return.
Debt Consolidation	You are struggling with multiple high-interest debts and have a disciplined plan to use the cash flow savings to pay down the consolidated debt faster.	You risk turning short-term debts into a long-term burden, ultimately paying more interest over the life of the loan.
Loan Term Impact	You are in a strong financial position and can refinance to a shorter loan term, paying the loan off years sooner.	You are tempted to extend your loan term back out to 30 years to get lower monthly repayments, which will significantly increase the total interest paid.

It’s best to speak with a mortgage broker to make an informed decision.

👉 Also check out the other Types of Refinance in Australia.

How Do You Benefit From a Fixed Rate Mortgage Refinance?

A strategic fixed rate home loan refinance offers a chance to reshape your mortgage and unlock savings, flexibility, and better features.

It allows you to align your largest financial commitment with your current circumstances and future ambitions.

Secure a Lower Interest Rate and Slash Repayments

The most powerful reason to refinance is to get a lower interest rate. Lenders often reserve their sharpest rates for new customers.

Even a small rate reduction can lead to significant savings. It lowers your monthly repayments and cuts down the total interest you pay over the loan’s life.

The Australian Competition and Consumer Commission (ACCC) found that older loans often have much higher rates. A 2020 report showed that switching could save the average customer $1,400 in the first year and $17,000 over the remaining loan term, proving that loyalty isn’t always rewarded.

Access Superior Loan Features

Modern home loans come with powerful features that older products may lack. Refinancing your fixed rate mortgage can be a gateway to these valuable tools.

These features provide greater financial flexibility and can help you pay off your mortgage faster. The most valuable home loan features include the following.

Offset Account: This is a transaction account linked directly to your home loan. The entire balance is “offset” against your loan principal when interest is calculated, meaning you pay less interest every day. For example, with a $500,000 loan and $50,000 in your offset account, you only pay interest on $450,000.
Redraw Facility: This feature lets you make extra repayments to reduce your loan principal while allowing you to withdraw those extra funds if needed. It offers a safety net for emergencies or large purchases.
Flexible Repayments: Many newer loans allow weekly or fortnightly repayments instead of monthly. Because there are 26 fortnights in a year, this method results in one extra monthly repayment annually, which can shave years and thousands of dollars off your mortgage.

Align Your Loan with Your Life Goals

Your financial situation and goals will change over the 25 to 30-year life of a mortgage. Refinancing is the key to ensuring your home loan adapts with you.

It provides a crucial opportunity to change your loan structure to fit your current needs. This can involve the following.

Switching from Fixed to Variable: If your fixed term is ending and you want more flexibility or believe rates might fall, switching to a variable rate can be a smart move.
Switching from Variable to Fixed: In a rising rate environment, you might want the certainty of a fixed rate. Refinancing a fixed rate home loan allows you to lock in your repayments and protect your budget from future rate hikes.
Adopting a Split Loan: For those who want the best of both worlds, a split loan is an excellent option. You can structure your mortgage with one part fixed for certainty and the other part variable for flexibility and access to features like an offset account.

Using a Cash-Out Refinance to Access Equity

Many refinance a fixed home loan to unlock the wealth built up in their homes. This turns home equity into active capital for renovations or investments.

A cash-out refinance lets you borrow against the portion of your property that you truly own. It’s a powerful tool for wealth creation and lifestyle upgrades.

Accessing equity is a savvy move, but it comes with risks. It’s essential to weigh the potential rewards against the drawbacks carefully.

The main reward is leveraging your existing asset to acquire new assets that can grow in value. However, the core risk is increased total debt.

This means higher monthly repayments and places your family home at greater risk if you can’t meet the new, higher repayments.

👉 Learn more: Cash Out Refinance to Access Your Home Equity

Consolidating Debts to Streamline Finances

Another powerful reason to refinance is to streamline your finances. Debt consolidation can bring order to financial chaos and improve your cash flow.

This involves rolling multiple high-interest debts, like credit cards and personal loans, into your single home loan with only one regular repayment.

The advantages of this strategy are clear and immediate. You can significantly reduce the interest being charged on your debts.

By moving debt from a high-rate product like a credit card (e.g., 18%) to a low-rate home loan (e.g., 5.5%), you immediately lower your total monthly outgoings.

Managing one payment is also far easier than tracking multiple due dates, which reduces the risk of late fees.

Despite the lower rate, this extension can mean you pay significantly more in total interest over the long run. The strategy only truly works if you are disciplined enough to use the monthly savings to make extra repayments and pay off the consolidated debt quickly.

👉 Learn more: Refinancing Home Loan to Consolidate Debt in Australia

👉 Learn more: Benefits of Refinancing Your Australian Home Loan

FAQs about Fixed Rate Mortgage Refinances

Here are some common questions and answers about refinancing fixed rate mortgages.

How long after fixing my loan can I refinance?

Technically, you can refinance a fixed loan at any time. However, it’s rarely wise to do so in the first year or two.

The most strategic time is at the end of your fixed-rate term to avoid significant break fees.

👉 Also see: When to Refinance Your Mortgage in Australia

Will refinancing hurt my credit score?

Every new loan application creates a “hard inquiry” on your credit file. Multiple applications in a short period can cause a temporary dip in your score.

However, this effect is usually minor and short-lived. Consistently making your new repayments on time will have a far more positive long-term impact.

👉 Learn more: Does Refinancing Affect Your Credit Score in Australia?

Is it better to refinance with my current bank or switch?

There is no single answer, but always start by negotiating with your current lender.

Use competitive offers from other banks as leverage to see if they will match the rate to keep your business.

If they won’t, and a competitor’s offer is significantly better after accounting for all costs, then switching is the smart move.

👉 Also see: Aussies Turning to Small and Mid Tier Banks to Refinance

Can I refinance a fixed investment loan?

Yes, you can refinance a fixed rate loan for an investment property.

The principles and processes are largely the same as for an owner-occupier loan. The same rules and potential costs, including break fees, apply.

👉 Check out: Refinance Investment Property in Australia

How much equity do I need to refinance?

Most Australian lenders require you to have at least 20% equity. This means borrowing at 80% LVR or lower.

Refinancing with less is sometimes possible, but the cost of paying for a new LMI policy often outweighs the savings from a lower rate.

👉 Check out: How Much Equity Do I Need To Refinance My Mortgage?

Refinancing a fixed loan is a chance to take control of your largest liability and reshape it to serve your goals. Success lies in a strategic, calculated approach that goes beyond just comparing interest rates.

AU Expats—Ready to Explore Your Fixed Rate Refinance Options?

Are you an Australian expat finding it complex to refinance your fixed-rate mortgage back home?
This uncertainty can be stressful, potentially costing you thousands in missed savings and preventing you from securing a better financial future.
Odin Mortgage specialises in helping expats. We provide tailored advice to navigate the complexities of a fixed-rate refinance. We'll support you through your entire property journey to ensure you secure and keep the right deal.
Get expert expat refinancing advice

Key Takeaways

Refinancing fixed rate mortgages is possible, ideally at the end of your term to avoid costly break fees. ⬆️
A break cost is a fee lenders charge to cover their loss if you end a fixed loan early. ⬆️
Expats can refinance but face challenges like proving foreign income and stricter lending policies. ⬆️
The fixed loan refinancing process involves a financial health check, negotiation, application, and finally, settlement with the new lender. ⬆️
Deciding to refinance a fixed loan depends on your unique goals and weighing the potential savings against the costs. ⬆️
Fixed mortgage refinancing benefits include lower rates, access to better loan features, and aligning the mortgage with your goals. ⬆️

Can You Refinance a Fixed Loan? Fixed Rate Mortgage Refinance