In short

Offset and redraw both cut mortgage interest the same way, but they diverge on tax, Centrelink and protection. Offset withdrawals never affect loan deductibility; redraws are traced as new borrowings and can taint an investment loan. Offset balances are generally assessed for the Age Pension; redraw generally is not (hedged). Only offset carries Financial Claims Scheme cover, up to $250,000 per ADI.

If you have ever paid extra off your home loan and then wondered whether to get that money back through "redraw" or to have parked it in an "offset" account instead, you have probably been told the two are more or less interchangeable — both reduce the interest you pay, both let you get your money back if you need it. For a lot of purposes, that is close enough.

It stops being close enough in four situations: if any part of your borrowing is for investment, if you are close to Age Pension age, if you care about deposit protection, or if you need to be certain you can get to your money. In each of those, redraw and offset behave differently — and the difference is not well known.

The mechanics, briefly

An offset account is a separate deposit account, linked to your home loan, where the balance you hold offsets the loan balance for interest-calculation purposes. If you owe $400,000 and hold $50,000 in the linked offset, interest is charged on $350,000. The offset account itself behaves like an everyday transaction account — you can deposit and withdraw freely, and the money in it is unambiguously yours (ASIC's Moneysmart, https://moneysmart.gov.au/home-loans/mortgage-offset-accounts, as at August 2026).

A redraw facility is different. It lets you draw back extra repayments you have already made into the loan, beyond the minimum required schedule. There is no separate account — the "spare" money has actually gone into reducing the loan principal, and redraw is the lender giving you permission to take some of it back out. Because it is not a separate account, access is generally at the lender's discretion: some cap how much you can redraw per transaction or per period, some charge a fee, some impose a processing delay (Moneysmart glossary, https://moneysmart.gov.au/glossary/redraw-facility).

Day to day, both reduce your interest bill by the same arithmetic. That is where the similarity ends.

Asymmetry one: what happens at tax time

This one matters if any of your borrowing is, or could become, for investment purposes — a rental property, a margin loan, a geared share portfolio.

ATO Taxation Ruling TR 2000/2 deals directly with the deductibility of interest on money drawn down under line of credit facilities and loans offering redraw facilities (https://www.ato.gov.au/law/view/document?docid=TXR/TR20002/NAT/ATO/00001). Its central principle is that drawing available funds from the loan is treated as a new loan, and the deductible portion of the interest depends on what the redrawn funds are actually used for. Where the funds are used for different purposes, the loan becomes a mixed purpose account and the interest must be apportioned between the income-producing and non-income-producing parts.

Withdrawing money from an offset account is not a borrowing at all. It is taking back your own deposit, so it does not disturb the deductibility of interest on the loan it is linked to — nothing new has been borrowed.

The tracing rule cuts both ways, which is worth knowing because most explanations only give you one direction. Redraw from an investment loan and spend it on something private — a car, a holiday, a wedding — and you have created a mixed-purpose loan: part of the ongoing interest is deductible, part is not, and you now have to apportion and keep records to prove it. But the reverse also holds: where the original borrowing was for private purposes and you redraw and use those funds for an income-producing purpose, the part of the interest attributable to that use is deductible.

The practical rule: if there is any chance a loan will carry investment purpose, either now or later, offset is the structurally cleaner facility, because offset withdrawals cannot create the tracing problem at all. Redraw is fine for a loan that will only ever be a private home loan, but it is the wrong facility to draw on casually if deductibility matters. This is registered-tax-agent territory once real money is involved.

Asymmetry two: what Centrelink counts (the sharpest one, and the least known)

This is the one most people have never been told, and it is the reason this article exists.

The DSS Social Security Guide, section 1.1.L.50 ("Liquid assets") draws an explicit line: a mortgage offset account is a deposit account and is included as a liquid asset, while a mortgage redraw account balance, and other draw-down loan facilities, are specifically excluded (https://guides.dss.gov.au/social-security-guide/1/1/l/50).

The logic behind it is straightforward once you see it. An offset balance is money you hold and can withdraw at will, so it is treated like any other financial asset: assessed under the assets test, and deemed to earn income under the income test, the same as a savings account would be. Undrawn redraw capacity is different in kind — it is not money you hold, it is borrowing capacity you have not used, and you cannot spend borrowing capacity without the loan balance going back up. On that logic, it is generally not counted as an asset at all.

Here is the honest caveat, and it has survived a second look. Section 1.1.L.50 is squarely about the liquid assets definition — most directly relevant to the Liquid Assets Waiting Period that applies to allowance payments, not to the Age Pension assets test itself. A further round of checking on 10 August 2026 still did not turn up an equally squarely-on-point primary source stating the identical treatment for the general Age Pension assets test. The position is consistent with how the assets test is meant to work, and with what our existing article on offset accounts in retirement says about offset balances being assessed. But it has not been verified against a primary source written specifically for the general assets test, and we would rather tell you that than pretend otherwise.

So treat this as the general position, not a guarantee. If the split between redraw and offset could affect your Age Pension entitlement — because you are near a means-test threshold — confirm the current treatment directly with Services Australia before restructuring anything on the strength of it.

Asymmetry three: what happens if the bank fails

Australia's deposit protection, the Financial Claims Scheme, guarantees deposits up to $250,000 per account holder, per authorised deposit-taking institution, if an ADI fails (APRA, https://www.apra.gov.au/about-financial-claims-scheme). An offset account, being a genuine separate deposit account, is covered in the ordinary way, the same as any savings or transaction account. A redraw facility is not a deposit account at all — it is unused borrowing capacity sitting inside a loan. There is nothing to protect because there is no deposit, and the scheme does not and cannot cover it. APRA aims to return protected deposits within seven days of the scheme being activated.

Two features of the limit matter more than people expect, and both cut against a large balance. The $250,000 is a per-institution total, not per account — if you hold several accounts with the same ADI they are added together and the combined total is what is protected. And some ADIs operate under more than one brand or trading name, so two accounts that feel like they are at two different banks can share a single $250,000 limit. If you are holding a large sum, APRA publishes the list of ADIs covered and which brands sit under which licence (https://www.apra.gov.au/types-of-accounts-covered-under-financial-claims-scheme).

For most people this asymmetry is theoretical. It stops being theoretical for anyone holding a substantial sum against their home loan and weighing offset against redraw as a place to park it.

Asymmetry four: getting to your money when you need it

Offset funds sit in an ordinary deposit account and are accessible on the same terms as any other bank account — a debit card, a transfer, an ATM. Redraw is generally available at the lender's discretion: some lenders cap the amount you can redraw in a single transaction or period, some charge a redraw fee, some require the request to be processed rather than being instant, and in some circumstances a lender can restrict or suspend redraw altogether.

For a retiree who might need a lump sum at short notice — an aged care accommodation payment, an unexpected medical bill, a family emergency — that reliability gap is worth knowing about before you need it, not after.

Why this is worth checking right now, not just reading about

On 29 July 2026 ASIC released Report 837, Offsets, out of mind: Banks fall short on mortgage offset account promises, reviewing eight banks to see whether offset accounts were actually delivering the benefit customers were promised (https://www.asic.gov.au/regulatory-resources/find-a-document/reports/rep-837-offsets-out-of-mind-banks-fall-short-on-mortgage-offset-account-promises/). The accompanying media release put the consumer point plainly: hidden mortgage offset failures are costing Australians millions in lost interest savings.

The scale is not small. Almost 3.3 million Australian households have a mortgage, and Australians held around $349.1 billion in offset accounts as at March 2026, up 28% over two years. Between September 2023 and August 2025, banks paid out more than $55 million in compensation for offset failures reported to ASIC.

The failures ASIC describes are mundane rather than exotic, which is exactly why they go unnoticed: banks failing to open or link offset accounts at all, or linking them to the wrong home loan. And the finding that should decide what you do next is this one — many banks did not detect these failures because their controls were inadequate, and some had no proactive process to identify and compensate for offset errors unless a customer complained. ASIC's own illustrative example, drawn from the drafting research for this article: a couple with an average $50,000 balance in an offset linked to a $750,000 loan, where the bank had not actually applied the offset, were more than $3,000 worse off after a single undetected year — and ASIC estimated close to $230,000 in extra interest and four extra years on the loan if it were never caught.

ASIC did not name the eight banks, so this article does not either. What the report establishes is that "I have an offset account" is not, on its own, evidence that the offset is working. ASIC has published a consumer-facing item on precisely this (https://www.asic.gov.au/about-asic/news-centre/news-items/check-your-mortgage-offset-account-is-actually-saving-you-money/), and the action it points to is simple: check your next statement, confirm the offset balance is actually being applied against your loan balance, and query anything that looks wrong with your lender directly. If the bank will not find the error for you unless you complain, the complaint has to start with you noticing.

Worked examples

These examples carry no interest-saving arithmetic, deliberately. What you would save depends on your rate, balance and term, and a figure here would read as a promise rather than an illustration.

Margaret, 71, single, owns her home outright apart from a small remaining loan, and has an offset account she opened when she refinanced four years ago. She has never checked whether it is linked. On these facts the ASIC finding is the live issue rather than the redraw-versus-offset choice: her exposure is not that she picked the wrong facility, it is that the facility may not be doing anything. What is generally rational is to take her next statement and confirm two things — that the offset balance appears, and that the interest charged is calculated on the loan balance less that offset amount. If the interest looks like it was calculated on the full loan balance, that is the query to put to the lender in writing. She should not assume the bank will find it first; ASIC's finding is that some will not look unless asked.

Robert and Susan, 68 and 66, part pensioners with an investment unit and a home loan carrying a redraw facility holding a substantial sum. Three of the four asymmetries are live for them at once. If they redraw and spend any of it privately, TR 2000/2 makes that a new borrowing traced by use, and the loan becomes mixed-purpose with interest to apportion. Because they are part pensioners, the redraw-versus-offset split may affect their assets position — but that is exactly the point this article hedges, so it is a question for Services Australia rather than an assumption to restructure on. And a large sum sitting as redraw has no Financial Claims Scheme protection, because it is not a deposit; the same sum in an offset would be protected to $250,000 per account holder per ADI. On these facts what is generally rational is to get the tax question to a registered tax agent before touching the redraw, confirm the Centrelink treatment with Services Australia directly, and treat those two answers as inputs to the structural decision rather than deciding first and checking later.

Putting it together

Neither facility is generally better; which one suits you depends on what the loan is for, how much certainty you need over access to your money, and whether Age Pension proximity is a live consideration.

If there is any chance the loan carries investment purpose now or later, offset is structurally cleaner for deductibility, because redraw creates tracing and apportionment problems the moment it is used for anything private. If you are close to Age Pension age or already receiving it and the assets test matters to you, the redraw and offset split may matter — but confirm the current treatment with Services Australia rather than relying on this article alone, for the reasons set out in the caveat above. If deposit protection matters because you are holding a large balance against the loan, offset carries the Financial Claims Scheme guarantee up to $250,000 per account holder per ADI and redraw does not, with the per-institution and multi-brand limits worth checking. If you need certainty of access, offset behaves like a bank account while redraw is generally at the lender's discretion. And if you already have an offset account, the open question is not which facility to choose — it is whether ASIC's July 2026 findings mean yours is one of the ones quietly not working. Check your statement.

Sources


Key takeaways

  • Tax: an offset withdrawal is not a new borrowing under TR 2000/2, so it never affects deductibility of the linked loan — a redraw is treated as a new borrowing traced by use, and a private-purpose redraw can taint an investment loan's deductibility.
  • Centrelink: offset balances are generally assessed and deemed like a savings account; redraw is generally not counted as an asset at all — but this is the general position, not a guaranteed one, so confirm with Services Australia if it affects your Age Pension.
  • Deposit protection: offset accounts are covered by the Financial Claims Scheme up to $250,000 per account holder per ADI; redraw facilities are not separate deposit accounts and are not covered.
  • Access: offset funds are accessible like any bank account; redraw access is generally at the lender's discretion, with possible limits, fees or delays.
  • ASIC Report 837 (29 July 2026) found offset-linking weaknesses at all eight banks it reviewed, with $55m+ paid in compensation across 250,000+ customers — check your own offset is actually being applied.

Frequently asked questions

Is a redraw the same as an offset account?

No. An offset account is a separate deposit account linked to your loan — the money is clearly yours, and you can withdraw it like any bank account. A redraw facility lets you draw back extra repayments already paid into the loan principal, and there is no separate account — access is generally at the lender's discretion, with possible limits, fees or delays.

Does a redraw count for the Age Pension assets test?

The general position, based on DSS Social Security Guide 1.1.L.50, is that redraw balances are generally not assessed as an asset, because they represent undrawn borrowing capacity rather than money you hold. Offset balances are generally assessed and deemed like a savings account. This is a hedged position rather than a guarantee — the clearest primary source is written for the liquid assets definition, not the general assets test, so confirm your own situation with Services Australia.

Does redrawing money affect tax deductibility?

It can. Under ATO Taxation Ruling TR 2000/2, a redraw is treated as a new borrowing that must be traced by what it is used for. If you redraw from a loan that has investment purpose and spend it privately, you create a mixed-purpose loan and need to apportion interest deductibility. Offset withdrawals are not new borrowings at all, so they never affect deductibility of the linked loan.

Is my offset account protected if the bank fails?

Yes — an offset account is a genuine deposit account and is covered by the Financial Claims Scheme up to $250,000 per account holder per authorised deposit-taking institution (ADI). A redraw facility is not a separate deposit account, so there is nothing for the scheme to cover.

What did the 2026 ASIC report on offset accounts find?

ASIC Report 837, released 29 July 2026, reviewed eight banks and found weaknesses in how every one of them set up, monitored or managed offset accounts. Banks paid out more than $55 million in compensation for offset failures between September 2023 and August 2025, affecting more than 250,000 customers. ASIC's example showed an undetected offset failure on a $50,000 balance against a $750,000 loan costing over $3,000 in year one and up to roughly $230,000 over the life of the loan.

A note on advice. This article is general information only and doesn't account for your personal circumstances. Everyone's situation is different — before acting, it's worth talking it through with a licensed adviser who knows your full picture.