An offset account and a redraw facility can both reduce the interest charged on an Australian home loan, but they are not the same thing. Money in an offset remains in a separate transaction account linked to your loan. Money available through redraw has already been paid into the loan as an extra repayment.
If the same amount of money remains against the same loan for the same number of days, a 100% offset and extra repayments will generally produce the same interest reduction. The important differences are access, fees, loan conditions, spending discipline and what can happen for tax purposes if the property later becomes an investment.
Offset account vs redraw at a glance
| Feature | Offset account | Redraw facility |
|---|---|---|
| Where the money sits | In a separate transaction account linked to the home loan | Inside the home loan as extra repayments |
| How it saves interest | The linked balance reduces the loan amount used for interest calculations | Extra repayments reduce the outstanding loan balance |
| Access | Usually through a debit card, transfers, BPAY, direct debits and online banking | Usually requires a transfer from the loan to a transaction account |
| Ownership structure | A separate deposit or transaction account | A contractual feature of the loan, subject to lender rules |
| Possible cost | May involve a package fee, feature fee or higher loan rate | Often included, but fees, minimum withdrawals or restrictions may apply |
| Spending temptation | Higher because the balance is easy to see and spend | Potentially lower because access usually requires an extra step |
| Potential tax complexity | Generally cleaner if the home later becomes a rental because withdrawing savings does not redraw the loan | Private redraws can create a mixed-purpose loan and require ongoing interest apportionment |
| Best suited to | Flexibility, salary deposits, emergency savings and possible future investment use |
Important: lender rules differ. Not every offset is 100%, not every loan permits redraw, and access to redraw may be adjusted or restricted under the loan terms. Check the current product disclosure, fees, interest rate and loan contract before deciding.
What is an offset account?An offset account is a separate bank account linked to an eligible home loan. It normally works like an everyday transaction account, allowing you to receive your salary, pay bills, use a debit card and transfer money. Instead of earning savings interest, the account balance reduces the portion of your home loan on which interest is calculated. With a 100% offset, every dollar in the account offsets one dollar of the linked loan balance. A simple offset exampleImagine you have a $500,000 home loan and keep $50,000 in a 100% offset account. The lender generally calculates interest as though the relevant loan balance were $450,000:
The $50,000 remains available in the offset account. If you spend $10,000, the offset falls to $40,000 and interest is then calculated against a larger effective balance. Home-loan interest is commonly calculated daily and charged monthly. This means the daily balance matters. Having your salary paid into the offset can reduce interest until the money is spent, even if the balance changes throughout the month. Advantages of an offset account
Disadvantages of an offset account
What is a redraw facility?A redraw facility allows you to access some or all of the extra repayments previously made above the home loan’s required minimum repayments. Suppose your required home-loan repayment is $3,000 a month and you pay $3,500. The additional $500 reduces the outstanding loan balance. Depending on the lender’s rules, that extra amount may become available to redraw later. Redraw is not a separate savings account. It is a loan feature. Access, minimum transfer amounts, fees and the calculation of available redraw are governed by the lender and your loan contract. Some lenders adjust the available redraw over time so the facility moves towards zero by the end of the agreed loan term. A displayed redraw balance should therefore not automatically be treated as money that will remain available indefinitely under every circumstance. Advantages of redraw
Disadvantages of redraw
Do they save the same amount of interest?Generally, yes—provided you are comparing a 100% offset against the same amount in extra repayments on the same loan, over the same period, with no difference in rate or fees. For example, keeping $50,000 in a 100% offset against a $500,000 loan can have the same daily interest effect as paying $50,000 directly into that loan. In each case, interest may effectively be calculated against $450,000. The real-world result can be different because the products themselves may have different interest rates, package fees and conditions. An offset attached to a more expensive loan can cost more overall than a cheaper redraw-only loan, particularly when the offset balance is small. A rough break-even calculationOne quick estimate is: Annual offset benefit ≈ average offset balance × home-loan interest rate If your average offset balance is $20,000 and the loan rate is 6%: $20,000 × 6% = approximately $1,200 in avoided interest during one year If the offset loan costs $395 a year more in fees and rate differences, the estimated net benefit would be about $805. This is only an illustration because balances, rates and fees change. When comparing loans, calculate the total annual cost—not just the advertised interest rate or the existence of an offset feature. The tax difference can be extremely important
Potential investment property: obtain tax advice before withdrawing or redrawing money if the property is—or may later become—a rental. The purpose for which borrowed money is used can affect whether the related interest is deductible. The property used as security does not by itself determine deductibility.
This is where offset and redraw can produce very different outcomes. Withdrawing money from an offsetMoney withdrawn from an offset account is generally your separate cash. Removing it increases the loan balance exposed to interest, but it does not normally create a new borrowing or change what the original home loan was used to purchase. If you later move out and rent the property, retaining savings in an offset rather than paying them permanently into the loan may preserve a larger original loan balance. Whether the interest is deductible still depends on the tax rules and your circumstances, so professional advice remains important. Redrawing money from the loanA redraw is generally treated as a new borrowing for tax purposes. The use of the redrawn money becomes relevant. If you redraw from a property loan to buy a private car, take a holiday or pay personal expenses, the interest relating to that redrawn portion will ordinarily be private. If the property later becomes a rental, the fact that the property secures the loan does not automatically turn that private interest into a rental-property deduction. The loan may become mixed-purpose, requiring interest to be apportioned between deductible and non-deductible portions. Making later repayments does not necessarily let you choose to repay the private portion first. This complexity can continue for years. Example of the potential tax differenceAssume an owner has a $500,000 home loan and $100,000 in savings. Offset approach: the owner keeps the $100,000 in an offset. The loan remains $500,000, while interest is temporarily calculated on an effective $400,000. The owner later uses the $100,000 as a deposit on a new home and rents out the original property. Redraw approach: the owner pays the $100,000 into the home loan, reducing it to $400,000. Later, they redraw $100,000 for the private deposit on their new home. That redrawn $100,000 has been used for a private purpose, potentially leaving a $400,000 rental-related portion and a $100,000 private portion. The cash position may look similar, but the potential tax outcome can be very different. Anyone considering this strategy should speak with a registered tax agent before moving the money. When an offset account may be betterAn offset account may be the stronger choice when:
Offset is particularly useful for people with irregular income, large cash reserves or a deliberate debt-recycling or property-investment strategy developed with professional advice. When redraw may be betterA redraw facility may be the stronger choice when:
Redraw can work well for a disciplined owner-occupier focused on clearing the mortgage. It should not automatically be treated as a permanent substitute for a separate emergency fund. Can you use both?Yes. Some Australian variable home loans include both an offset account and redraw. A practical approach could be:
Using both does not automatically make the loan better. Compare the rate, annual fees, number of allowed offset accounts, redraw rules and the actual dollar value of the features. Questions to ask before choosing
Common mistakes to avoidChoosing offset without comparing the total costA feature-rich package is not automatically better. If your average offset balance is only a few thousand dollars, the interest saving may not recover a higher rate or annual package fee. Treating redraw like a normal savings accountAvailable redraw is governed by the loan agreement. Read the lender’s rules and keep a separate emergency buffer if immediate access is important. Using a partial offset as though it were 100%A partial offset provides a smaller interest benefit. Check the offset percentage and whether the entire account balance applies to the linked loan. Redrawing without considering tax consequencesUsing redrawn funds for personal expenses can contaminate an otherwise investment-related loan. Seek advice before the transaction rather than trying to reconstruct it years later. Spending everything in the offsetAn offset only saves interest while money remains in it. Treating the displayed balance as spare spending money can quietly erase the benefit. Frequently asked questionsIs money safer in an offset or redraw?They are legally and operationally different. An offset is generally a separate deposit account, while redraw represents extra repayments made to a loan and is accessed under the loan contract. Check the account terms, Financial Claims Scheme eligibility where relevant and your lender’s redraw conditions. Does an offset account reduce my required repayment?Usually not automatically. It generally reduces the interest charged, meaning more of the scheduled principal-and-interest repayment can reduce principal. Loan repayment calculations and lender practices vary, so check your contract. Does putting money into redraw count as paying off the loan?Yes, it reduces the outstanding loan balance. However, the lender may record some extra repayments as available redraw, allowing you to borrow them again under the facility’s conditions. Should my salary go into my offset?It can be an effective approach because every dollar may reduce daily interest while it remains in the account. The benefit depends on your balance, spending habits and whether the loan provides a full offset. Can a fixed home loan have offset or redraw?Sometimes, but fixed-rate loans commonly impose restrictions. An offset may be partial, extra repayments may be capped and redraw may be unavailable. Check the specific fixed-loan conditions and possible break costs. Is an offset always better for an investment property?No. It may provide useful flexibility, but rates, fees, cash balances and tax circumstances all matter. The tax treatment depends on how borrowed money is used. Obtain personalised advice from a registered tax agent. Final verdictChoose an offset account if you want everyday access, keep a meaningful cash balance or may convert the home into an investment property later. Choose redraw if you want a simpler or cheaper owner-occupier loan, make permanent extra repayments and prefer slightly restricted access to reduce spending temptation. Consider using both when the loan includes both features at a competitive total cost and you have a clear purpose for each. Neither feature is automatically superior. A 100% offset and redraw can provide the same interest reduction when the same amount remains against the same loan, but the surrounding costs, access rules and potential tax consequences are different. For many borrowers, the offset’s flexibility is worth paying a reasonable premium. For others, a lower-rate redraw-only loan will save more overall. Compare the actual annual cost using your realistic average cash balance—not the maximum amount you hope to save one day. Sources
Financial and tax disclaimer: This article provides general information only and does not consider your objectives, financial situation or needs. It is not personal financial, credit, legal or tax advice. Check the loan contract and obtain advice from an appropriately licensed professional or registered tax agent before acting. Editorial note: Home-loan rates, fees, offset features and redraw conditions can change, so verify the current product terms before applying or refinancing. |
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