Offset and redraw both cut the interest on your home loan. That’s where the similarity ends.
On paper, the two look interchangeable. In practice, they treat your money very differently: who controls it, how quickly you can get to it, and what happens at tax time if your home ever becomes an investment property. Pick the wrong one at the start and you can lock in a problem that’s expensive or impossible to undo later.
Here’s the plain-English version of what each one does, where the difference really matters, and how to decide which suits you.
How does an offset account work?
An offset account is a transaction account that sits alongside your home loan. Every dollar in it is deducted from your loan balance when the lender calculates interest.
Say you have a $500,000 loan and $20,000 sitting in your offset. You’re only charged interest on $480,000. At an interest rate of 6% (used here for illustration only), that saves around $1,200 in interest a year, without you making a single extra repayment.
Importantly, your loan balance doesn’t change. The $20,000 is still your money, sitting in your account, available by card, transfer or ATM like any other cash.
How does a redraw facility work?
Redraw works differently. When you pay more than your minimum repayment, those extra funds go straight into the loan, reducing the balance you owe. The amount you’re ahead is your available redraw.
The interest saving is the same: $20,000 in extra repayments on a $500,000 loan also means you’re charged interest on $480,000.
The difference is ownership and control. Once that money is in the loan, it’s no longer cash in your account. You can usually get it back, but the lender sets the rules. That can include minimum redraw amounts, fees, processing time, or limits on how much you can access. Lenders can also reduce or freeze redraw, for example if your loan falls behind or your circumstances change.
Where does the difference matter most?
1. If your home might become an investment property
This is the big one, and it’s the mistake we see most often.
Many people buy a home, pour every spare dollar into redraw to pay it down, then later move out and rent the property. They redraw the money to put towards their next home, expecting the interest on the old loan to be tax deductible.
The problem: the ATO generally treats a redraw as new borrowing, and the deductibility of interest depends on what the borrowed money is used for. Redraw funds used for a new home (a private purpose) can mean that portion of the loan isn’t deductible, and the loan becomes a mixed-purpose loan that’s harder to unwind.
With an offset, the loan balance never went down in the first place. Moving the cash out of the offset doesn’t create new borrowing, so the full original loan stays connected to the property that’s now earning rent.
The tax treatment is a conversation for your accountant. But the loan structure has to be decided before the loan is set up, and that’s where we come in.
2. If you need the money in a hurry
Life happens. A medical bill, a job change, a car that won’t start.
Money in an offset is cash. You can use it today, the same way you’d use any bank account.
Money in redraw needs a request. Often that’s quick through internet banking, but it isn’t guaranteed. Limits, delays and lender decisions all sit between you and your own funds, which isn’t ideal when you need them most.
3. If you’re considering a fixed rate
Fixed rate loans often restrict both features. Many lenders cap extra repayments on fixed loans, limit or block redraw, and only offer partial offset (or none at all) while the rate is fixed. If flexibility matters to you, it’s worth weighing this up before you lock in a rate, or looking at a split loan that keeps part of the balance variable.
Is an offset account always worth it?
Not always. Offset accounts usually come as part of a package loan with an annual fee, often a few hundred dollars a year, and sometimes a slightly higher interest rate than a basic loan.
The maths is simple: the interest you save needs to be more than the fee. At a 6% interest rate, a $400 annual fee means you’d need to keep roughly $6,700 in your offset on average just to break even. If you usually hold only a few thousand dollars in cash, a basic loan with redraw may leave you better off.
On the other hand, if you hold a healthy cash buffer, have irregular income, or think the property could become an investment one day, an offset can be worth far more than its fee.
Can you switch later?
Sometimes, but it’s rarely as clean as getting it right at the start. Adding an offset may mean switching products or refinancing, with costs and paperwork attached. And if funds have already been redrawn for a private purpose, changing the structure won’t reverse the tax effect on that part of the loan.
That’s why we talk through your longer-term plans before recommending a loan structure, not after.
If you’re buying, refinancing, or wondering whether your current loan still suits where life is heading, we’re happy to walk you through it. We’ll look at your plans, your cash flow and the options across our lender panel, and help you set things up properly the first time.
Get in touch with Adam at PierPoint Lending for a no-pressure chat about your loan structure.
This article is general information only and does not take into account your personal circumstances. It is not tax or financial advice. Please consult your accountant or a licensed financial adviser for advice specific to your situation. All applications are subject to credit assessment, eligibility criteria and lending limits.
Frequently Asked Questions
What is the difference between an offset account and redraw?
An offset account is a separate transaction account linked to your home loan, and its balance reduces the amount of the loan you’re charged interest on. Redraw is access to extra repayments you’ve already made into the loan itself. Both reduce interest, but offset money remains your own cash, while redraw funds sit inside the loan and are accessed on the lender’s terms.
Do offset and redraw save the same amount of interest?
Generally, yes. If you hold the same amount in a 100% offset account as you would have in redraw, the interest is the same. For example, $20,000 in either reduces the interest charged on a $500,000 loan to the interest on $480,000. The differences are in access, control, fees and tax treatment, not the interest saving itself.
Is redraw bad if I want to turn my home into an investment property?
It can be. The ATO generally treats money withdrawn from redraw as new borrowing, and whether the interest is tax deductible depends on what that money is used for. If you redraw funds for a private purpose, such as a deposit on your next home, that part of the loan may not be deductible even if the original property is rented out. Money moved out of an offset account doesn’t create new borrowing in the same way. Speak to your accountant about your specific situation.
Can my bank stop me accessing my redraw?
Yes, in some circumstances. Redraw is governed by your loan terms, and lenders can set minimum withdrawal amounts, charge fees, limit the amount available, or restrict access, particularly if your repayments fall behind or your loan is changed. Money in an offset account is held in a transaction account and is generally available like any other cash balance.
How much do I need in an offset account to make it worthwhile?
It depends on the package fee and your interest rate. As a guide, divide the annual fee by your interest rate. With a $400 annual fee and a 6% rate, you’d need an average balance of around $6,700 in the offset just to cover the fee. Any balance above that is genuine savings.
Can I have an offset account on a fixed rate loan?
Some lenders offer full or partial offset on fixed rate loans, but many don’t. Fixed loans also often limit extra repayments and redraw. A split loan, with part fixed and part variable, is a common way to keep an offset or redraw on the variable portion while getting rate certainty on the rest.
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