How refinancing your home loan can help you pay off debt faster
Updated 11 November 2025 · For Australian home owners and investors · General information only
Refinancing isn’t just about shaving a few dollars off your minimum repayment. Done well, it can cut years from your loan term, clean up expensive debts and give you a clearer path to your next goal – whether that’s being mortgage-free sooner, renovating, or buying another property. The key is understanding when refinancing makes sense, and how to structure things so the savings actually stay in your pocket.
This is general information only and doesn’t take your objectives, financial situation or needs into account. Consider getting personal advice before acting.
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1) Why refinancing can be a smart move
A home loan is usually a 20–30 year commitment, but the loan you started with doesn’t have to be the loan you stay with forever. Lenders change their pricing, your income and expenses shift, and you may find yourself carrying extra debts you didn’t have when you first bought.
Refinancing is simply the process of replacing your existing home loan with a new one – either with your current lender or a different one. The right refinance can:
• reduce the interest rate you pay
• tidy up multiple high-interest debts
• adjust your repayments to match your cash flow
• unlock equity for renovations or future plans.
A good starting point is to benchmark your current rate using a tool like the home loan interest rate review calculator and then speak with a broker who can translate the numbers into real-world options.
2) Reason 1 – Paying less interest with a sharper rate
The most obvious reason to refinance is to get a lower interest rate. Even a small difference – say 0.30%–0.70% – can add up to tens of thousands of dollars over the life of a loan, especially if you keep your repayments at the same level instead of dropping them.
When we review a loan, we look at more than just the headline rate. We also consider:
• ongoing fees
• whether the loan includes an offset account or redraw
• how easy it is to make extra repayments
• any package or annual fees that might eat into the savings.
Many lenders also offer refinance cashbacks from time to time. These can help cover switching costs and, if used wisely, can go straight off the loan balance or towards paying down other debts. The key is to compare the value of the cashback with the long-term cost of the loan – not all offers are created equal.
3) Reason 2 – Consolidating high-interest debts into your home loan
Credit cards, buy now pay later products and personal loans often come with much higher interest rates than a home loan. If you’re carrying balances across multiple accounts, a big chunk of each repayment can be going to interest, not the principal.
Refinancing your home loan to consolidate those debts can:
• bring everything under one repayment
• reduce the overall interest rate you’re paying
• make it easier to see progress and avoid missed due dates.
The catch is that home loans usually run over a much longer term. If you roll short-term debts into your mortgage and then only pay the new minimum, you may pay more interest over time. A better approach is to:
• keep the “debt consolidation” portion in its own loan split
• choose a shorter term where possible
• set repayments higher than the minimum until that split is cleared.
ASIC’s Moneysmart guides to managing debt are useful for understanding how different kinds of debt work and how interest is calculated.
4) Reason 3 – Changing your loan term and repayment shape
Your original loan term might not fit your life anymore. For example:
• you might earn more now and want to pay the loan off faster
• you might have had kids and need lower repayments for a few years
• you might be planning for retirement and want a clear end date.
Refinancing lets you reset the term and repayment schedule. Shortening the term increases your monthly repayment but can drastically reduce total interest. Extending the term lowers the repayment, which can free up cash flow if things are tight – but you’ll generally pay more interest overall unless you make extra repayments when you can.
This is where strategy matters. Sometimes we’ll match the reduced repayment with a separate automatic transfer into an offset account. That way, you have flexibility if things change, but you’re still putting yourself on a faster track than just paying the bare minimum.
5) Reason 4 – Funding renovations and using your equity
Over time, as you pay down your loan and property values move, you build equity – the difference between what your home is worth and what you owe. Refinancing can be a way to access some of that equity to:
• renovate or extend
• create a more energy-efficient home
• add features that improve day-to-day life, like outdoor areas or a home office.
Rather than using high-interest personal loans or credit cards for a renovation, refinancing into a well-structured home loan split can keep the interest rate lower and align the repayment term with the life of the improvement. For example, it can make sense to repay a kitchen or bathroom over 10–15 years rather than 30.
The other side of the equation is risk. If you’re borrowing more against your home, it’s important to keep buffers – cash in offset, or unused capacity – so that an unexpected expense or interest rate change doesn’t create stress.
6) Reason 5 – Life changes, income shocks and flexibility
Life rarely runs in a straight line. Job changes, time out of the workforce to care for children, health events, starting a business or relationship changes can all affect how comfortable your current repayments feel.
In some cases, refinancing can help by:
• moving to a loan with more flexible repayment options
• adding an offset account so you can park savings while still reducing interest
• restructuring joint loans after a separation or divorce
• consolidating debts that have built up during a tough period.
Lenders all have different policies around things like overtime, bonuses, parental leave, casual work and support payments. Just because one lender says “no” doesn’t automatically mean that no one can help – but it does mean you’ll want someone comparing policy, not just rates.
7) Reason 6 – Getting ready before your fixed rate ends
If part or all of your home loan is fixed, that fixed period will eventually end. At that point, your loan usually reverts to the lender’s standard variable rate, which is often higher than the rates offered to new customers.
Rather than waiting for the letter in the mail, it can pay to:
• review your options a few months before the fixed term ends
• negotiate with your current lender
• compare that offer with refinance options elsewhere.
You might decide to stay variable for flexibility, fix a portion for certainty, or use the change as a chance to restructure the loan. A broker can walk you through the pros and cons of each approach in dollar terms so you can make an informed call.
8) Turning a refinance into real debt reduction
Refinancing gives you an opportunity. What you do with that opportunity is what determines whether you actually pay off debt faster or simply feel a bit more comfortable month to month.
Some practical ways to turn a refinance into real progress are:
• Keep repayments at the old level: If your new minimum repayment is lower, keep paying what you’re used to. The extra goes straight off the principal, reducing both the term and the total interest.
• Set targets for debt consolidation splits: If you’ve rolled in personal debts, have a clear payoff date and track your progress every few months.
• Use your offset account properly: Direct your salary and savings into the offset, then pay bills from there. Every dollar sitting in offset is a dollar that isn’t being charged interest.
• Check in regularly: Use tools like the Rate Challenge
interest rate review calculator
and revisit your loan every one to two years.
The Moneysmart refinancing guide also has a helpful checklist of questions to ask before you switch lenders.
This article is general information only. It doesn’t take your personal circumstances into account and isn’t financial, tax or credit advice. Before refinancing, consider speaking with a licensed adviser and reviewing your options in detail.
9) How a broker can help you compare options
You can talk directly to your bank about your home loan, but that only shows you one set of policies and prices. A mortgage broker compares multiple lenders and helps you understand the trade-offs between rate, features, fees and flexibility – all in the context of your real life.
In a typical refinance review we will:
• look at your current loan, rate and remaining term
• map out your goals – lower repayments, pay off faster, access equity, or some combination
• compare several lender options side by side
• explain how each choice would affect your cash flow and total interest
• help structure any debt consolidation or renovation splits so they’re manageable.
You can get started online with the home loan interest rate review calculator, then request a call or meeting via the Rate Challenge contact page.
Refinancing & debt: common questions
Will refinancing always save me money?
Not automatically. Refinancing can save money when the new loan has a better combination of rate, fees and features and the savings outweigh the costs of switching. A proper comparison includes the new repayments, the remaining term, any break costs and government fees, not just the headline rate.
Is it a good idea to roll my credit cards into my home loan?
It can be helpful if you use it as a reset – closing the cards, keeping that portion of the loan on a shorter term and committing to higher repayments. If you consolidate but then keep spending on the cards, you can end up deeper in debt. The structure and your habits both matter.
How often should I review my home loan?
A simple rule of thumb is every one to two years, or sooner if interest rates move sharply or your situation changes. A quick check-in can confirm whether you’re still on a competitive deal or whether a refinance or internal rate review is worth exploring.
Will refinancing hurt my credit score?
Applying for a new home loan usually involves a credit check, which creates an enquiry on your file. A single, well-planned application is normal and usually fine. Multiple applications with different lenders in a short period can be a red flag, which is one reason many people prefer to coordinate everything through a broker.
Can I refinance if my income has changed?
Possibly. Lenders may still consider applications from people with variable income, part-time work, parental leave or self-employment, but each lender has its own rules. A broker can help identify which lenders are more flexible for your situation and what documentation you’ll need.
Should I fix, stay variable or split when I refinance?
There’s no one right answer. Fixed rates can give certainty for a period; variable rates offer more flexibility and offset benefits. Many borrowers choose a mix. The right blend depends on your budget, your tolerance for rate changes and your plans over the next few years.