Your Tax Refund and Your Home Loan: Put It to Work and Check Your Rate (2026)
Tax time is a prompt, not a deadline: two simple home loan moves once the refund lands.
At tax time you are already in money-admin mode, gathering income statements, lodging the return, and a refund often lands a little later. That makes it the natural moment to make two quiet moves on your home loan: put any refund where it does the most work, and while you are in the numbers, sanity-check your rate. Most owner-occupiers set the loan once and never look again. A little attention now can quietly shorten your loan and lower what it costs you. This is general information, not credit assistance, and any figures are indicative.
- A tax refund is a one-off lump sum, so the question is where it works hardest on your home loan: an offset account, extra repayments off the principal, redraw, or a high-interest savings account.
- For an owner-occupier, money in an offset account or paid off the loan saves interest at your home loan rate, which is usually higher than what a savings account pays after tax.
- Illustrative example: a $5,000 lump sum on a $500,000 loan at 6% p.a. with 25 years left could save roughly $15,000 in interest over the life of the loan, because the saving compounds at your loan rate.
- Owner-occupier home loan interest is not tax-deductible. Tax time is simply when you are already doing money admin, not a deduction play. Confirm any tax decision with your accountant.
- While you are in the numbers, checking your rate usually matters more than the refund itself. Everstone compares a panel of over 40 bank and non-bank lenders, and a review is worthwhile at any time of year.
A tax refund will not transform your home loan on its own, but tax time is the natural moment to make two moves: put the refund where it saves the most interest, usually an offset account or straight off the principal, and sanity-check your rate, which for most owners matters more than the refund. Owner-occupier home loan interest is not tax-deductible, so this is about momentum, not a deduction. Confirm any tax decision with your accountant.
Why tax time is the natural moment for owner-occupiers
Tax time is a prompt, not a deadline. You are already gathering income statements and lodging your return, so you are in money-admin mode. A refund often lands after you lodge. That is the natural moment to look at your home loan, the one bill most owners set and forget.
There is no countdown here. A refund arrives after you lodge, and a home loan review is worthwhile at any time of year. The point is simpler: tax time is the one stretch when you are already thinking about your money on purpose. You have your income statement open, you are reconciling the year, and a refund may be on its way.
For an owner-occupier, someone paying off the home they live in, this is not about a tax deduction. Your home loan interest is not deductible (more on that below). It is about momentum. While the spreadsheet is open, two moves are worth making: decide where any refund does the most work, and check whether your interest rate is still competitive. Most people never get around to the second one, which is exactly why it is worth doing now.
Move one: put your refund to work, the options at a glance
A tax refund is a one-off lump sum, so put it where it earns or saves the most. For most owner-occupiers that means an offset account or paying it straight off the principal, both of which save interest at your loan rate. Redraw and high-interest savings are the more flexible, lower-return alternatives.
Your refund has four sensible homes, and they trade off return against access. An offset account sits beside your loan and reduces the balance you pay interest on, while keeping the cash available to withdraw. Paying the refund straight off the principal as an extra repayment cuts the balance permanently and saves the most interest, but the money is harder to get back. Redraw lets you reclaim extra repayments later if your loan allows it. A high-interest savings account keeps the money fully liquid, though the after-tax return is usually lower than your loan rate.
The comparison table below lays out all four side by side. The right answer depends on whether you value the interest saved or the ability to reach the money again, and on what your specific loan allows.
| Where the refund goes | How it works | Access to the money | Best for |
|---|---|---|---|
| Offset account | Cash sits in an account linked to your loan and reduces the balance you pay interest on, dollar for dollar, without being paid off the loan itself. | Full. Withdraw the money any time, like a normal transaction account. | Owner-occupiers who want to save interest at their loan rate while keeping the refund reachable for emergencies. |
| Extra repayment / lump sum off the principal | The refund is paid directly off the loan balance, permanently reducing the principal so interest accrues on a smaller amount for the rest of the term. | Limited. Money is committed to the loan unless redraw is available. | Owners focused on the biggest interest saving and shortest term who do not need the money back. |
| Redraw | You make an extra repayment, then reclaim some or all of it later if your loan offers a redraw facility, subject to the lender's rules. | Moderate. Available if your loan permits it, sometimes with limits or a fee. | Owners who want the interest saving of an extra repayment but some ability to access funds again later. |
| High-interest savings account | The refund sits in a separate savings account earning interest, which is taxable, rather than reducing your loan balance. | Full. Money stays liquid and separate from the loan. | Owners who want the cash kept entirely separate, accepting a lower after-tax return than the loan rate. |
The math: what a lump sum actually saves
A lump sum saves interest at your loan rate, and the saving compounds over the remaining term. Illustratively, a $5,000 lump sum on a $500,000 home loan at 6% p.a. with 25 years remaining could save roughly $15,000 in interest over the life of the loan and take time off the term. Your figure depends on your rate, balance and remaining term.
The reason a modest lump sum can save several times its own size is compounding. Every dollar you take off the balance stops accruing interest, and the interest it would have accrued also stops accruing, year after year, at your loan rate. On a long-dated loan that effect snowballs.
Here is the illustrative example, and it is illustrative only: a $5,000 lump sum on a $500,000 home loan at 6% p.a. with 25 years remaining could save roughly $15,000 in interest over the life of the loan and take time off the term, because the saving compounds at your loan rate. Your actual figure depends on your rate, your balance and how many years you have left. The earlier in the loan you do it, the more the compounding has to work with. These numbers are indicative and subject to change, and they are general information rather than personal advice.
Move two: while you are in the numbers, sanity-check your rate
The refund is the small lever. Your interest rate is the big one. A rate that has drifted above the market can cost far more over a year than any single refund saves. While the spreadsheet is open, check what you are paying against what is available, then decide whether a refinance is worth it.
Most owners set their loan once and never look again, and lenders rarely volunteer a better rate to existing customers. A fraction of a percent on a large balance dwarfs the interest saved by a one-off lump sum. So the second move usually matters more than the first.
Start with the diagnostic, not a sales pitch. Our home loan self-audit walks you through working out what your loan is actually costing you and whether your rate is competitive. If it looks like you are paying too much, the complete guide to refinancing a home loan covers how refinancing works, including break costs and the steps involved, so we will not repeat it here. And if the property is an investment rather than your own home, the rate review still applies but the tax treatment differs, so see reviewing your investment property loan rate at tax time instead.
Refund or rate or other debt: a simple way to decide
A simple order of priority: clear high-interest debt such as credit cards or personal loans first, keep an emergency buffer you can actually reach, then sanity-check your home loan rate, then direct the refund to an offset account or off the principal. Confirm the right order for your situation with your adviser.
Before any refund touches the mortgage, deal with anything charging more than your home loan rate. Credit card and personal loan interest usually runs well above a home loan, so clearing that debt is almost always the highest-return move. Next, make sure you have a buffer of accessible cash for the unexpected, because money paid off the principal is not always easy to get back.
With those covered, the rate check tends to outweigh the lump sum, so do that second. Then put the refund to work in an offset account or as an extra repayment, depending on whether you want the money to stay reachable. This is a general framework, not personal advice. Everyone's debts, income and buffer needs differ, so confirm the right order with your accountant or financial adviser. We are mortgage brokers, not tax agents.
How Everstone helps
Everstone is an independent mortgage broker in South Yarra, run by former bankers. We compare a panel of over 40 bank and non-bank lenders to check whether your home loan rate is still competitive and, if not, handle the refinance. Our advice is free to you because the lender pays us. No deadline, no pressure.
Ahmed Lotfi and Zappelin Heng spent years inside the banks, so they know how loans are priced and where the better rates sit. As an independent broker, Everstone works across a panel of over 40 bank and non-bank residential lenders rather than pushing one institution's products. The advice costs you nothing, because the lender pays the broker, not you.
Tax time is simply a convenient prompt to look. If your refund has landed and you want a second opinion on where it should go, or you just want to know whether your rate is still sharp, start with the self-audit and bring us the result. Eligibility and lender criteria apply, and any figures we quote are indicative and subject to change.
Tax time? Let us sanity-check your home loan.
While you are already across your money, send us your loan and we will tell you straight whether your rate still stacks up, across a panel of over 40 bank and non-bank lenders. No cost, no obligation.
Talk to an ex-bankerTax time and your home loan: FAQs
Should I put my tax refund on my mortgage?
For most owner-occupiers it is one of the strongest options, because money in an offset account or paid off the principal saves interest at your home loan rate, which is usually higher than a savings account pays after tax. First clear any higher-interest debt and keep an emergency buffer, then decide between offset and extra repayment based on whether you need the money reachable. Confirm your situation with your accountant or adviser.
Offset account or extra repayments, which is better?
Both save interest at your loan rate. An offset account keeps the money fully accessible, so it suits a refund you might need back. An extra repayment off the principal usually commits the money to the loan but maximises the saving and shortens the term. If your loan has redraw, an extra repayment can be partly reclaimed later. The right choice depends on how much access you want.
Will a lump sum cut my repayment or my term?
Usually your term, not your monthly repayment. On most home loans an extra lump sum keeps your scheduled repayment the same and instead reduces how long the loan runs, because more of each repayment now goes to principal. Some lenders let you recalculate to lower the repayment instead. Ask your lender, or your broker, which option applies to your loan.
Can I get the money back later via redraw?
Sometimes. If you make extra repayments and your loan has a redraw facility, you can usually reclaim some or all of those extra payments later, subject to the lender's rules and any limits or fees. Not all loans offer redraw, and terms vary. If keeping the money reachable matters to you, an offset account generally gives more reliable access than redraw.
Is my home loan interest tax-deductible?
For an owner-occupier paying off the home you live in, no. Interest on your own-home loan is not tax-deductible in Australia. That is why tax time here is a prompt to do money admin, not a deduction play. Interest on a genuine investment loan is treated differently. We are mortgage brokers, not tax agents, so confirm anything tax-related with your accountant.
Does checking my home loan rate cost anything?
No. Reviewing your rate with Everstone is free, because the lender pays the broker, not you. You can start on your own with our home loan self-audit to see what your loan is costing, then bring the result to us for a second opinion across a panel of over 40 bank and non-bank lenders. Eligibility and lender criteria apply, and any figures are indicative.
Related guides
Important information
- Worked example is illustrative only and assumes a constant rate and repayment; your figure depends on your rate, balance and remaining term.
- For general guidance on offset accounts and extra repayments, see ASIC’s MoneySmart. We are not tax advisers; confirm tax treatment with your accountant or the ATO.