Offset Accounts vs Redraw Facilities: Questions for Australian Borrowers
Compare where the money sits, access conditions, realistic balances, full loan costs and what happens when the mortgage changes.
On this page
An offset account and a redraw facility can both affect mortgage interest, but they place money in different arrangements. The practical comparison is therefore about more than the interest calculation. Ask where the money sits, how access works, what the complete loan costs and what happens when the loan changes.
This guide concerns Australian home loans and uses invented numbers to demonstrate questions. It does not recommend a lender or decide where you should keep emergency money. Loan documents and current product terms control the arrangement. Property investment, ownership and tax questions require advice about the particular circumstances.
Identify the two arrangements accurately
Moneysmart explains that an offset is a transaction account linked to a home loan, with its balance reducing the amount on which loan interest is calculated. Redraw instead concerns extra repayments made into the loan, which may be accessible again under the loan’s terms.
Ask the lender to identify the account and loan separately in writing. Check whether the proposed offset applies fully or partially, which loan portion it links to and whether the product is eligible. An account used for salary and bills is not necessarily providing an offset simply because it is held with the mortgage lender.
For redraw, ask what counts as an extra repayment and what the displayed available figure means. Do not assume it is the total of every amount ever paid above an old repayment schedule. Pending transactions, required repayments and the lender’s calculation can make the amount available different from a simple running total.
Compare access before relying on the balance
Write down the situations in which you expect to use the money: regular bills, a known future purchase, irregular income months or an unexpected expense. Then ask how each arrangement handles that use. The relevant question is whether the actual process fits the timing and access you need, not whether a brochure calls it flexible.
Ask about minimum and maximum withdrawals, transaction limits, processing time, authorised account holders and any approval process. Check what happens during a product switch, refinance, payment difficulty or account closure. These are questions for the lender; this guide does not assert that every lender imposes the same restrictions.
CommBank’s redraw explanation, as one lender-specific example, distinguishes total and available redraw and describes how available redraw may reduce over the loan term. Its rules should not be copied onto another bank’s product. Use the example to ask your own lender for its equivalent explanation.
| Feature | Offset account | Redraw facility |
|---|---|---|
| Money location | Separate linked transaction account | Extra repayments into the loan |
| Interest effect | Confirm eligible balance and offset proportion | Confirm reduction in the loan balance |
| Access | Check account and transaction rules | Check available amount and loan conditions |
| Complete cost | Account, package and loan pricing | Facility and loan pricing |
| Loan changes | Confirm the correct link continues | Confirm continued eligibility and access |
Use the balance you will actually maintain
A salary deposit that is mostly spent during the month does not leave the same offset balance every day. Sketch the timing of income, bills and planned withdrawals. Use a realistic average or a day-by-day calculation where available, and keep the assumptions visible. A large opening deposit is not automatically a year-round saving balance.
For a deliberately simplified example, assume a fully effective A$10,000 offset balance stays unchanged for 30 days, the relevant annual loan rate is 6%, and the calculation uses 365 days. The approximate interest reduction for that period is A$10,000 × 0.06 × 30 ÷ 365, or A$49.32.
This is arithmetic, not a bank quote. It ignores changing balances, rate changes, fees and detailed repayment interactions. If only A$5,000 remains under the same assumptions, the estimated reduction is A$24.66. The change illustrates why money needed for imminent bills should not also be counted as permanently available to reduce interest.
Build a realistic balance scenario
- Start with money available after current commitments.
- Map income and spending dates.
- Apply the actual eligible balance and loan rate.
- Deduct additional account or package costs.
- Repeat with a lower balance and changed circumstances.
Include fees and the loan’s interest rate
Suppose a fictional offset feature adds A$120 a year in fees, with no difference in the loan rate or other costs. At a constant assumed 6% rate, a simplified average offset balance of A$2,000 would produce A$120 of annual interest reduction before other effects. That is a narrow arithmetic break-even, not a complete comparison of actual loans.
If the eligible loan also charges a higher interest rate, include that difference across the relevant loan balance. A convenient feature can have a price beyond its monthly account fee. Ask the lender for the two full offers on the same loan amount, remaining term and repayment basis, showing which charges are introductory and which continue.
Do not count a package discount unless you would actually use the included service and its price is relevant to the comparison. Equally, do not treat every package charge as an extra offset cost if it would be paid under both options anyway. Separate costs that change because of the choice from costs shared by both offers.
Check repayment and fixed-rate conditions
Moneysmart’s repayment guide recommends checking whether extra repayments are allowed and whether fees apply. Ask before transferring a lump sum, particularly if you expect to withdraw it later. Permission to make a repayment and permission to access money again are different parts of the arrangement.
The Moneysmart fixed-versus-variable guide discusses differences in rate certainty and loan flexibility. Ask about the exact product’s extra-payment limits, offset availability and costs of changing it. A split loan needs separate attention to which portion receives the benefit or repayment.
Clarify whether an interest reduction changes the required repayment or instead changes how much of that repayment reduces principal. Do not independently lower a scheduled payment because a worksheet predicts less interest. Ask the lender to confirm the required amount and how redraws or other changes affect it.
Verify the arrangement after it starts
Keep the setup confirmation and inspect the relevant account and loan statements. Moneysmart specifically warns that offset accounts need to be correctly linked and that changes to the loan may require the link to be checked again. If the expected arrangement is not visible, ask the lender to explain it and retain the response.
Set a review point after a major withdrawal, rate change or refinance. Revisit both the access assumptions and the cost comparison rather than checking only the current balance. A feature that suited one stage of home ownership may deserve another look when income timing, household obligations or the intended use of the property changes.
Keep three records distinct
- Cash needs: what must be available and when.
- Loan terms: rates, fees, access and required repayments.
- Evidence: setup confirmation, statements and explanations.
Use the budget planner to organise cash timing. Our loan payment calculator uses a simplified fixed-rate schedule and does not model daily offset balances or lender redraw rules. Read the financial disclaimer before treating an illustration as a decision input.
Related guides
Continue with Building an Emergency Fund When Your Income Changes Each Month and Budgeting for Irregular Expenses Without Treating Them as Emergencies. Each guide identifies its scope and any country-specific rules.
Common questions
Are offset and redraw the same thing?
No. Offset money sits in a separate linked transaction account, while redraw relates to extra repayments into the loan. Both may reduce interest, but account access, lender conditions and treatment when the loan changes can differ. Read the documents for the specific arrangement.
Does any account with my lender count as an offset?
No such assumption is safe. Confirm that the account is an eligible offset and correctly linked to the intended loan or loan portion. Ask the lender how to verify the link in your statements or online account, especially after a refinance or product change.
Can I withdraw every extra repayment?
Ask the lender what is currently available and how that amount is calculated. The displayed figure can differ from a total of past extra payments, and access depends on the contract. One bank’s description of redraw does not establish another lender’s rules.
Is the highest possible offset balance the right planning figure?
Use a balance that reflects actual spending and timing. Money deposited on payday may leave soon afterward to meet bills. A scenario based on the peak balance throughout the year can overstate the interest reduction and make additional fees look easier to justify.
Is A$2,000 the universal break-even balance?
No. It comes only from the invented A$120 annual fee and 6% rate example, excluding other differences. Actual rates, fees, eligible balances and loan pricing may change the comparison substantially. Calculate from matching current offers and realistic cash use.
Will my monthly repayment automatically fall?
Ask the lender. Less interest does not necessarily mean the scheduled payment changes in the way you expect. Continue making the required repayment unless the lender confirms a revised amount; a general calculator cannot alter your contractual payment obligation.
Can fixed-rate loans have these features?
Availability and restrictions depend on the product. Ask about offset eligibility, extra-repayment limits, redraw and any charge for changing the loan. Do not infer the conditions from the word fixed alone or from features offered on the same lender’s variable-rate product.
Should emergency money go into redraw?
This guide cannot decide that for your household. Assess the actual access conditions and timing against your needs, together with the rest of your finances. Money you expect to use at short notice requires a clear understanding of how it can be accessed.
Are the tax consequences identical?
Do not assume so, particularly when property use or borrowing purpose changes. Obtain advice about your actual transactions and records before making a tax-sensitive decision. The interest examples here do not establish deductibility or a tax outcome for an investment property.
What should I check after refinancing?
Confirm the new product’s features, required repayments and access rules, and verify the offset is linked to the intended loan if applicable. Keep the setup evidence and ask about any unexplained interest calculation. An old arrangement should not be assumed to transfer unchanged.
