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Quantum Finance Australia

Mortgage offset account

Mortgage offset accounts in Perth, and the households that gain from one

Quantum Finance arranges offset home loans in Perth: the balance in your offset account reduces the amount of your loan that interest is charged on, while the money stays available to you at any time.

  • A transaction account linked to your loan, reducing the balance interest is charged on.
  • The money stays available to spend or withdraw at any time.
  • Worth more than a small rate discount for a household holding a cash buffer.
  • Worth nothing to a household that runs its account to zero each fortnight.
Gavin Harrigan laughing at his desk with a Quantum Finance brochure in front of him and the street-facing shopfront window behind
Years broking
21+Years broking
Loans settled
$1B+Loans settled
Credit licence
ACL 389083Credit licence
Lenders compared
40+Lenders compared

Our awards and recognition

Awarded by the people who see every broker’s numbers
  • Diamond Club

    2026

    Money Quest Group

  • Diamond Club

    2025

    Money Quest Group

  • Diamond Club

    2024

    Money Quest Group

  • Mortgage Broker of the Year

    2023/24 — National, highest dollar volume settled

    Southern Cross Broker Network

  • Excellence in Finance, Gold

    2021

    PLAN Australia

  • Excellence in Finance, Gold

    2020

    PLAN Australia

  • Hall of Fame

    Valued partner, 15 years

    PLAN Australia

  • Elite Broker

    2021

    Broker Value Proposition

  • Premium Broker

    ANZ

  • Individual Excellence Award

    2016

    Specialist Finance Group

  • Sales Excellence Award

    PLAN Australia

  • Sales Master Award

    PLAN Australia

  • Top 100 Brokers

    Four times

    Australian Broker

What our offset home loan service does

The work we do on an offset loan, from the arithmetic to the placement

An offset account is a transaction account linked to your home loan, and money sitting in it reduces the balance that interest is calculated on. The work is proving it pays for itself on your figures, then attaching it to the right loan with a lender whose terms are worth having.

Most residential loans are paid for by the lender through commission rather than by you. Where a fee would apply, we tell you before you apply, in writing.

An offset that never holds a balance is a feature you are paying for and not using. We would rather tell you that before settlement than have you discover it two years later.

  • We work out whether the offset pays for itself

    A loan with an offset usually prices above one without, or carries an annual package fee. The test is whether your typical balance saves more than that difference costs. We run it on your actual account balances rather than on an assumption about how you spend.

  • We compare offset terms across 40+ lenders

    Offset accounts are not identical between lenders. Some are full offset and some reduce only part of the balance, some allow several sub-accounts and some charge for each, and availability against a fixed portion differs entirely by lender.

  • We put the offset against the alternatives

    Redraw returns extra repayments you have already made, and a basic loan drops the offset for a lower rate. Each is the better answer for some households. Comparing all three on your figures is what stops you paying for flexibility you were never going to use.

  • We place the offset against the right debt

    For an owner with both a home loan and an investment loan, the offset generally belongs against the non-deductible debt. Getting this the wrong way round costs money quietly for years. The tax treatment is your accountant's call, and we structure the lending to support it.

  • We prepare and submit the application

    We put the file together so it lands properly the first time, then submit it to the lender we have chosen. Applications fired off to see what sticks are what damage a credit file, so we assess against policy before anything goes in.

  • We revisit the decision as your balances change

    A household with no use for an offset can acquire one, and a household that had a buffer can spend it. We diarise a review so the loan still matches how you hold money now rather than how you held it at settlement.

How offset accounts are offered

Six offset arrangements, and who each one tends to suit

Borrowers use the word offset as though it means one thing, and lenders offer several versions of it. The differences below decide how much of your balance actually reduces the interest you pay.

Full offset

Tends to suit

Borrowers who want every dollar in the account counted

Worth knowing

The whole balance reduces the amount interest is charged on, and it is the arrangement most borrowers assume they have

Partial offset

Tends to suit

Borrowers taking a product where a full offset is not on the table

Worth knowing

Only part of the balance counts, so check the terms before assuming the saving

Multiple offset sub-accounts

Tends to suit

Households that budget by bucketing money into separate accounts

Worth knowing

Convenient for organising savings, and some lenders charge per account

Offset against a variable loan

Tends to suit

Most owner-occupiers

Worth knowing

The standard arrangement, and the feature that makes a full-feature variable loan worth its price

Offset against a fixed portion

Tends to suit

Borrowers who want certainty and an offset at once

Worth knowing

Offered by some lenders and not others, which is a common reason to split a loan

Offset against non-deductible debt

Tends to suit

Owners holding both a home loan and an investment loan

Worth knowing

Generally belongs against the home loan, and the tax treatment is a question for your accountant

Knowing the difference does not hurt. Do not stress about the variations, though — tell us what you typically hold in your accounts and what else you owe, and we work out which arrangement earns its keep.

Who offset home loans suit

The households that actually gain from an offset

An offset rewards a household that holds a balance rather than one that spends to zero. These are the situations where it earns its keep.

  • Households in Perth that hold a genuine cash buffer between pay cycles

  • Self-employed borrowers holding GST and tax money until it is due

  • Investors keeping the offset against non-deductible debt rather than the investment loan

  • Borrowers expecting a bonus, a settlement or an inheritance they may need back later

  • Households saving for a renovation or a car who want the money working meanwhile

  • Anyone paying for a package with an offset attached and never using the account

How our home loan process works

Five steps, from the first conversation to settlement

An offset loan runs through the same process as every loan we write, with the arithmetic done before anything is submitted. Here is the whole thing, start to finish.

  1. Start an application

    You send us the basics and we work out what you could borrow and which lenders will look favourably at your situation.

    What you need

    Income, debts, deposit

    Read this step in full: Start an application
  2. Get pre-approved

    We put your file to the lender that fits and bring back a pre-approval in writing, subject to lender approval and your circumstances.

    What we do

    Match the lender to your file

    Read this step in full: Get pre-approved
  3. Get officially approved

    Once your offer is accepted, the lender orders its valuation and issues formal approval.

    What we do

    Chase the lender, so you do not have to

    Read this step in full: Get officially approved
  4. Prepare for settlement

    We go through the loan documents with you before you sign anything, then coordinate the lender and your settlement agent.

    What you need

    Your questions, asked early

    Read this step in full: Prepare for settlement
  5. Stay up to date

    After settlement we keep the loan under review as rates move and your circumstances change.

    What we do

    Review it, and tell you first

    Read this step in full: Stay up to date

Step 1 of 5

About our independent mortgage brokers

The brokers who work out whether the offset is worth it

Independent means no franchise above us and no lender owning a share of the business. Nobody upstairs sets a monthly target, so we are free to tell you the package is not worth its fee. Your bank offers its own offset; we compare 40+ lenders.

Gavin Harrigan has been broking from West Leederville since 2005. Today it runs on a small team, Gavin Harrigan, Justin Richardson and Xavier Prescott, each with their qualifications on the page. You deal with the person who writes your loan, before settlement and after it.

The work runs from a first home loan, through refinancing and investment lending, out to construction, small developments and commercial property. Same broker, whichever end of that you are at.

  • VerifiedBroking since 2005
  • VerifiedOver $1 billion in loans settled
  • VerifiedAustralian Credit Licence 389083
  • VerifiedMoneyQuest accredited
  • VerifiedMember of the Finance Brokers Association of Australia (FBAA)
  • Verified40+ lenders on the panel

Fifteen minutes is usually enough to tell you where you stand. No cost, no obligation, and any lending is subject to approval and your circumstances.

The Quantum Finance broking team at their West Leederville office in Perth
Gavin Harrigan at his desk at the Quantum Finance office in West Leederville, industry awards on the wall behind him

Why choose us for an offset home loan

An offset is arithmetic, not a selling point

Every point below is a consequence of how this business is owned, not a slogan about service.

  • Included

    No franchise, no head office quota

    We do not pay a franchise fee, so nobody upstairs sets a monthly target for us to hit. That removes the main reason a broker recommends the wrong loan.

  • Included

    No lender owns a share of us

    The banks have no stake in this business and no claim on where files go. Your bank has one loan to sell you. We do not.

  • Included

    40+ lenders, one shortlist

    We compare 40+ bank and non-bank lenders, then explain why the shortlist looks the way it does. Policy differences decide more applications than rate does.

  • Included

    We will tell you when the answer is no

    If refinancing does not actually save you money, we say so and you leave the loan where it is. A wrong loan costs more than the fee it earns.

  • Included

    The same broker after settlement

    You keep dealing with the person who wrote the loan. We review it as rates and your circumstances change, not once and then never again.

Book a 15-min chat

What our clients say

In their words, not ours

Reviews left by people we have settled home loans for, pulled straight from the platform they were written on.

Our lender panel for offset loans

Offset terms differ by lender. We compare 40+

Major banks, second-tier banks, and non-bank lenders whose offset terms differ from the majors. MoneyQuest gives us access to the panel. 21+ years of writing loans on it tells us whose offset is worth what it costs.

  • ANZ
  • Commonwealth Bank
  • NAB
  • Westpac
  • St.George
  • Bankwest
  • Suncorp Bank
  • ING
  • Citi
  • Macquarie
  • AMP
  • ME Bank
  • P&N Bank
  • Firstmac
  • Homeloans
  • La Trobe Financial
  • Liberty
  • Pepper Money
  • Bluestone
  • PLAN Lending

A selection of the lenders we are accredited with. Ask us who else is on the panel for your situation.

Meet our Perth mortgage brokers

You get a broker, not a call centre

Three people, all named, all reachable. The person who runs the offset arithmetic is the person who writes the loan and the person who revisits it later.

  • Gavin Harrigan, Managing Director of Quantum Finance Australia in Perth

    Gavin Harrigan

    Managing Director

    Broking since 2005, four-time Top 100 broker and a PLAN Australia Hall of Fame member.

    • Bachelor of Commerce, Applied Finance and Commercial Law — Curtin University
    • Diploma of Finance and Mortgage Broking Management — AAMC Training Group
    • PLAN Australia Hall of Fame member
    • Elite Broker status
    • Top 100 Brokers, four times
    Read profilefor Gavin Harrigan
  • Justin Richardson, Loan Consultant at Quantum Finance Australia

    Justin Richardson

    Loan Consultant

    Business and law background, and a habit of making the process feel simple.

    • Bachelor of Commerce, Business Law and Marketing — Curtin University
    • Bachelor of Laws (in progress) — Murdoch University
    Read profilefor Justin Richardson
  • Xavier Prescott, Loan Consultant at Quantum Finance Australia

    Xavier Prescott

    Loan Consultant

    Fresh qualifications, a competitor's discipline, and a lot of patience.

    • Diploma of Finance and Mortgage Broking Management
    Read profilefor Xavier Prescott

Common questions about mortgage offset accounts

What is an offset account, and is it worth paying for?

Money sitting in an offset account reduces the balance you pay interest on while staying available to you. For a household with a decent cash buffer that can be worth more than a small rate discount. For a household that runs its account to zero every fortnight it is a feature you are paying for and not using.

How does an offset account actually save me money?

Interest is calculated on your loan balance less the balance in the linked offset account. Reducing the amount interest is charged on reduces the interest itself, and because the repayment usually stays the same, more of it goes to the principal. The money in the account remains yours to withdraw.

What is the difference between an offset and redraw?

Redraw lets you take back extra repayments you have already made against the loan, so the money has been paid in. An offset is a separate account whose balance sits beside the loan rather than inside it. The distinction matters for access and for the tax position on an investment property.

Can I get an offset account on a fixed rate loan?

Some lenders offer an offset against a fixed portion and many do not, so it depends entirely on which lender writes your loan. It is one of the most common reasons borrowers split a loan, keeping a variable portion with the offset attached. We check the policy before recommending a lender.

Is a 100% offset different to a partial offset?

A full offset counts the whole balance in the account against the loan. A partial offset counts only a portion of it, so the saving is smaller than borrowers usually assume. The terms are set by the lender, and it is worth reading them rather than relying on the product name.

Should the offset sit against my home loan or my investment loan?

For an owner with both, it generally belongs against the non-deductible debt, which is usually the home you live in. Getting it the wrong way round costs money quietly for years. The tax treatment is a question for your accountant, and we structure the lending to support their advice.

How much do I need in an offset for it to be worth having?

Enough that the interest it saves exceeds what the feature costs you in rate difference or annual package fee. There is no universal threshold, because it depends on your loan size, the pricing difference and your typical balance. We run the comparison on your figures before you choose the loan.

The information on this page is general in nature and does not take into account your objectives, financial situation or needs. Any figures shown are estimates only. Lending is subject to approval, and to the lender's terms, conditions, fees and charges. Consider whether the information is appropriate for you before acting on it.

Get in touch

Talk to us about an offset home loan

Four questions and you are done. A broker reads it, works out whether an offset earns its keep for you, and rings you back on the number you give us.

Would rather just talk?

Ringing is quicker than waiting for us to ring you, and you get a broker rather than a queue.

1300 813 113

Tell us what you need

Four details, about twenty seconds. We ask the rest on the call, where you can ask us things back.

An Australian mobile or landline. Overseas? Give us the number you use at home and we will work around the time difference.

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