Nick Donato is a financial adviser at Guidance Financial Services who specialises in helping clients all over Australia aged 30 to 50 get their financial foundations sorted, so they can build wealth and have more choice in life through our Wealth Builder program. You can learn more about it here.

The short answer: offset and redraw usually save a similar amount of interest. The difference is where the money sits. An offset balance stays outside the loan, which keeps it instantly accessible and generally keeps the loan's tax position simpler if the home later becomes an investment property. Redraw puts the money inside the loan, and taking it back out is generally treated as new borrowing, so the tax treatment depends on what it is then used for.

An offset account and a redraw facility can save you a similar amount of interest, so it is easy to assume they do much the same job.

But there is an important difference. Money in an offset account sits beside your loan. Money in redraw sits inside it.

It comes down to where your money sits, how easily you can access it and what may happen if your plans for the property change later. If there is any chance your home could become an investment property, the choice you make now may affect your tax position years down the track.

That does not automatically make one option better than the other. It means your mortgage needs to be structured around what you might want to do next, rather than simply what saves you interest today.

This episode is taken from my conversation with mortgage broker Aydin Gulmen on the Wealth Builder podcast that compares offset, redraw, fixed and variable home loan structures. Listen to the episode below:

First, check that your offset account is actually working

Before comparing offset and redraw, there is a finding from earlier this year worth knowing about.

In July 2026, ASIC published a review (Report 837) covering eight banks that represented more than 70% of Australia's $2.5 trillion home loan market. Those banks had paid more than $55 million in compensation for offset account failures reported between September 2023 and August 2025.

ASIC also looked at 204,000 home loans settled between March and August 2025. Of the problems it identified, 55% involved an offset account that had been opened but never linked to the loan. Another 22% were never opened, 14% were linked later than promised and the remaining 9% involved other issues.

Many of the customers affected had no obvious way of knowing something was wrong. From their end, the account looked completely normal.

ASIC's guidance to customers is to confirm with their lender that the offset account has been opened, that it is linked to the correct home loan and that it is reducing the interest charged.

What is the difference between offset and redraw?

The interest saving can be broadly similar, but the money sits in a different place.

An offset account is a separate transaction account linked to your home loan. The lender subtracts the balance in that account from your loan balance before calculating interest each day.

For example, on a $600,000 loan at 6% with $40,000 held in an offset account, interest is charged on $560,000 rather than $600,000. On those numbers, that is roughly $2,400 less interest over a year.

If the same $40,000 went into the loan as extra repayments, the interest saving would be much the same. The difference is that the money has now entered the loan. To use it again, it has to be redrawn.

That may seem like a small technical difference. Depending on what happens to the property later, it could become quite important.

Which gives you easier access to your money?

An offset account usually gives you more immediate access.

It works much like an everyday transaction account. Your salary can go into it, bills can come out and you can transfer or spend the money without applying to the lender.

Redraw may take longer to access. Depending on the lender, there could also be minimum withdrawal amounts or fees.

This is one reason people often keep their emergency fund in an offset account. The money remains available if they need it, while reducing the interest charged on the home loan.

Money in an offset account does not earn a return. Instead, it saves you interest that would otherwise have been charged. Interest you avoid paying is generally not assessable income, so the benefit can be worth more than earning the same rate in a savings account. You should still confirm how this applies to you with a registered tax agent.

What happens if your home becomes an investment property?

This is where a decision made today can show up years later.

Whether loan interest is tax deductible generally depends on what the borrowed money was used for. It is not determined solely by the property securing the loan, and the ATO's guidance for rental properties is built on that principle.

Money held in an offset account has never been paid into the loan, so the original loan balance and purpose remain unchanged. If the home later becomes a rental property, you generally still have the same loan that was originally used to buy it.

Redraw works differently. When extra repayments are made and later withdrawn, the redrawn amount is generally treated as new borrowing. Its tax treatment will then depend on what that money is used for.

Redrawing it to pay for a car or a holiday means that portion of the debt has been used for a private purpose. The result can be a mixed-purpose loan that needs to be divided between deductible and non-deductible portions, with future repayments apportioned between the two.

That can create a much messier tax position than expected.

Redraw can still be a perfectly reasonable option. The point is simply that longer-term plans are worth thinking about before extra money goes into the loan, particularly for anyone who may keep the home and rent it out one day.

Tax treatment depends on the history of the loan and how the money was used, so this is something to confirm with a registered tax agent. Where the property is part of a wider wealth-building plan, a financial adviser can help work through how the mortgage fits with other goals.

When might an offset account or redraw suit you?

There is no single answer that works for everyone.

An offset account tends to suit people who want easy access to their money, who prefer using one account for their income and expenses, or who may eventually turn the home into an investment property. It can also be useful for anyone building an emergency buffer.

Redraw can suit people who want the money to be a little harder to access, who feel confident they will not need it again, or whose loan charges more for an offset account.

Many home loans offer both, so it does not always have to be an either-or decision.

Is an offset account worth paying a higher rate or fee for?

That depends on how much money is kept in it.

Some loans with offset accounts charge a higher interest rate or an annual package fee. Where only a small balance is held in the account, the interest saved may not cover the additional cost. Where a larger balance is maintained, the numbers could look very different.

This is why the interest rate alone is rarely the whole comparison. A cheaper rate may still leave someone worse off if the loan structure does not suit how they use their money or what they plan to do next.

How does your mortgage fit into your wider financial plan?

The offset-versus-redraw decision is often part of a bigger question: what should you do with your surplus cash?

You could make extra home loan repayments, build your offset balance, invest outside super, contribute more to super or save a deposit for another property. Each option is competing for the same money, and the right mix depends on what you want that money to help you achieve.

This is the work I do with clients through Wealth Builder. I help people in their 30s and 40s bring their mortgage, investments, super and surplus cash into one clear plan, rather than making each decision on its own.

Want to get your mortgage working with the rest of your money

A growing income and some money left over each month are a strong start. The next step is working out how to use that money across your mortgage, super and investments without losing flexibility or missing opportunities.

Through Wealth Builder, I can help you work out where your next dollar can have the greatest impact and build a strategy around the life you want.

Find out more about Wealth Builder.

Learn more about our Wealth Builder program

Common questions

Is it better to keep money in redraw or an offset account?

Both can provide a similar interest saving. With an offset account, the money remains separate from the loan and is usually easier to access. It may also keep the loan's tax position simpler if the home later becomes an investment property.

The better option will depend on the loan, the lender's fees, how easily the money needs to be accessed and future plans for the property.

Is it better to make extra repayments or use an offset account?

Both options reduce the balance used to calculate interest. Extra repayments go into the loan, while money in an offset account remains separate.

That distinction can matter for someone who expects to need the money again, or who may turn the home into an investment property later.

Can you have more than one offset account?

Some home loans allow several offset accounts to be linked to one loan, while others only allow one. It varies between lenders and products, so check with your lender or mortgage broker.

Is money redrawn from a home loan tax deductible?

It depends on what the redrawn money is used for. Money redrawn for private expenses is generally not tax deductible, even if it comes from a loan secured against an investment property.

A mixed-purpose loan may require repayments to be apportioned between its deductible and private portions. This is an area to discuss with a registered tax agent.

Is an offset account worth it if it comes with a higher rate or fee?

It depends on how much money is kept in the account and how consistently that balance is maintained. A small balance may not recover the additional cost, while a larger balance could make the offset worthwhile.

The flexibility it provides should also form part of the comparison.

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This article is for educational purposes only and does not take into account your individual circumstances. If you would like tailored advice, we can help you work through the numbers properly.