When you’re paying down a home loan, every dollar of interest you can avoid counts. Two of the most common features you’ll come across are an offset account and a redraw facility – and they can both help you reduce the interest you pay. But they don’t work the same way, and the one that saves you more comes down to how you manage your money day to day.
How an offset account works
An offset account is a transaction account linked to your home loan. The balance in that account is deducted from your loan balance before interest is calculated. For example, if you owe $500,000 on your mortgage and keep $20,000 in your offset, you’re only charged interest on $480,000. You can deposit and withdraw money freely, just like any everyday bank account, but keeping your balance high over the month directly cuts your interest bill.
How a redraw facility works
A redraw facility lets you pay extra money directly into your home loan, reducing the principal you owe. You can then ‘redraw’ some of those extra payments later if you need the cash. So if you’ve paid an additional $20,000 off your loan and your lender allows redraws, you could take that money back out – usually subject to some conditions, like a minimum redraw amount or a small fee.
The real difference: access, discipline and interest savings
Both features can lower your interest payments, but they suit different habits.
With an offset account, your savings sit in a separate account. You can see the balance, spend from it, and keep it mentally earmarked for everyday needs or a future goal. Because it’s not mixed into your loan balance, you’re in full control. The offset account also preserves the tax treatment of your loan if you ever convert your property to an investment later – something a redraw doesn’t always handle as neatly.
A redraw facility works well when you’re confident you won’t need to dip into the extra money for a while. It locks your extra repayments into the loan, which can make it harder to access on impulse. Some people find that helpful for discipline. But redraws aren’t always instant, and some lenders limit how much you can take back.
Scenario: Sarah keeps $20,000 in an offset vs paying it into a redraw
Let’s say Sarah has a $500,000 home loan with a variable rate of 6.00% p.a., principal and interest, over 25 years. She has $20,000 she could either leave in an offset account or use as an extra repayment with a redraw facility available.
If she puts that $20,000 into an offset, interest is calculated on $480,000 from day one. Assuming the offset balance stays at $20,000 for the year, she’d save roughly $1,200 in interest over 12 months, and more over the life of the loan if she maintains or grows that balance.
If she pays the $20,000 off her loan as an extra repayment, her principal drops to $480,000. The interest saving on paper is the same – but if she later needs to redraw some of it, the lender may charge a fee, delay access by a couple of days, or limit her minimum redraw to $500 or more. And if Sarah ever turns her property into an investment, the loan balance used to calculate tax-deductible interest could be permanently reduced by that redraw amount, even if she redraws the money later for personal use. An offset account avoids that issue because the loan balance itself doesn’t change.
Which saves you more?
If you consistently keep a healthy balance and want easy access to your cash, an offset account usually gives you the same interest-saving power with more flexibility and fewer long-term tax complications. If you’re disciplined and don’t plan to touch the extra money – and the redraw has no fees – the end result can be similar, but you’d need to check the lender’s terms carefully.
For most everyday borrowers who use their transaction account for wages, spending, and growing a savings buffer, an offset account tends to be the simpler and more effective tool.
A quick note on costs
Offset accounts are often part of a home loan package that may come with an annual fee, while basic loans with a redraw facility can sometimes be cheaper. The numbers matter. If your offset balance would be low most of the time – say under $10,000 – the package fee might outweigh the interest saved. Always run the figures on your own situation.
OZ Home Loan provides general information about Australian home loans for multilingual borrowers, but we are not a lender, do not promise approval or particular rates, and cannot give you personal financial advice. If you’re unsure which feature is right for you, consider speaking with a licensed mortgage broker or financial adviser who can look at your full financial picture.