If you're in the market for a home loan in Australia, you've got plenty of options.
Between banks, credit unions, and non-bank lenders, there are hundreds of institutions that write mortgages- and most lenders offer a range of different products.
As with most industries though, the home loan market is still dominated by a few major players that hold almost all outstanding mortgages.
Biggest banks in Australia
Australian lending is dominated by the 'Big Four' banks.
Nearly 74% of all mortgages in the nation - both owner occupier and investment - are provided by CommBank, Westpac, NAB or ANZ.
When we include Macquarie Bank (its home loan book is more than twice the size of its next biggest competitor, ING), more than four fifths of the Australian mortgage market is held by just five institutions.
For some Aussies, this is a concern. In 2023, the ACCC tried to block ANZ from acquiring Suncorp to prevent further entrenching this oligopoly. Given the size of the major banks, the ACCC was worried about a 'live and let live' approach where the big banks refuse to compete against one another to offer lower rates.
However, this decision was overturned by the Australian Competition Tribunal in early 2024, and Suncorp home loans are now under the ANZ umbrella.
What is the biggest bank in Australia?
The Commonwealth Bank (CommBank) is comfortably the biggest bank in Australia.
It doesn't matter whether you measure by market capitalisation, total assets, or the size of its home loan book, CBA comes out on top.
If you know your Aussie history, this won't be surprising. CommBank was founded by the government and used to be Australia's reserve bank before eventually being privatised.
Top banks in Australia for home loans
These are the ten banks in Australia with the largest home loan books, as per APRA statistics for October 2025. These numbers include each banks' subsidiaries, often significant institutions in their own right. St George, Bank of Melbourne, and BankSA, for example are all part of the Westpac group, so home loans with any of those banks are counted as Westpac.
Top ten banks in Australia for owner occupier home loans
|
Rank |
Institution |
Value of owner-occupied home loan book |
|---|---|---|
|
1st |
Commonwealth Bank |
$394 billion |
|
2nd |
Westpac |
$324.3 billion |
|
3rd |
NAB |
$224.1 billion |
|
4th |
ANZ |
$213.6 billion |
|
5th |
Macquarie Bank |
$93.4 billion |
|
6th |
ING |
$53.9 billion |
|
7th |
$49.3 billion |
|
|
8th |
Suncorp |
$40.4 billion |
|
9th |
$38.3 billion |
|
|
10th |
$23.5 billion |
Top ten banks in Australia for Investment home loans
|
Rank |
Institution |
Value of investment home loan book |
|---|---|---|
|
1st |
Commonwealth Bank |
$205 billion |
|
2nd |
Westpac |
$165.7 billion |
|
3rd |
NAB |
$113 billion |
|
4th |
ANZ |
$105.6 billion |
|
5th |
Macquarie Bank |
$57.2 billion |
|
6th |
Bank of Queensland |
$17 billion |
|
7th |
Suncorp |
$16.3 billion |
|
8th |
Bendigo Bank |
$14.7 billion |
|
9th |
ING |
$13.3 billion |
|
10th |
HSBC |
$10.1 billion |
Should you get a home loan through a big bank?
The ten banks listed above hold almost 92% of all of Australia's outstanding home loans.
And while there are hundreds of other providers out there, you might not have heard of most of them. It's understandable that you might gravitate towards these larger institutions with familiar brand names, and there can be significant advantages to choosing one of the big players.
Large banks benefit from economies of scale. For example, it might be easier for a larger bank to operate with smaller margins between returns on deposits and interest rates on credit products. Bigger banks might also have better technology, such as banking apps that improve the customer experience.
However, you probably also shouldn't limit yourself to the big players.
Smaller lenders often offer even lower rates to attract customers, and may provide more personalised services.
You may feel a bit uneasy about borrowing through a lender you're unfamiliar with, but providing it has an Australian credit license, you shouldn't have anything to worry about.
There is never one 'best home loan' product out there. Different borrowers have different priorities. An offset account might be a non negotiable for some people, while others might want to easily manage their home loan through a banking app. Others just simply want to pay the lowest rate possible.
Whatever your story, taking the time to explore the market, from the biggest banks to the smallest credit unions, might allow you to find the product most suited to your needs. Perhaps the easiest way to do so is to peruse a comparison site such as Your Mortgage.
| Lender | Home Loan | Interest Rate | Comparison Rate* | Monthly Repayment | Repayment type | Rate Type | Offset | Redraw | Ongoing Fees | Upfront Fees | Max LVR | Lump Sum Repayment | Extra Repayments | Split Loan Option | Tags | Features | Link | Compare | Promoted Product | Disclosure |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5.29% p.a. | 5.33% p.a. | $2,773 | Principal & Interest | Variable | $0 | $530 | 90% |
| Promoted | Disclosure | ||||||||||
5.19% p.a. | 5.10% p.a. | $2,742 | Principal & Interest | Variable | $0 | $0 | 80% |
| Disclosure | |||||||||||
5.24% p.a. | 5.29% p.a. | $2,758 | Principal & Interest | Variable | $0 | $1,100 | 80% | Disclosure | ||||||||||||
5.43% p.a. | 5.46% p.a. | $2,817 | Principal & Interest | Variable | $0 | $845 | 80% | |||||||||||||
5.48% p.a. | 5.51% p.a. | $2,833 | Principal & Interest | Variable | $0 | $300 | 80% | |||||||||||||
5.54% p.a. | 5.57% p.a. | $2,852 | Principal & Interest | Variable | $0 | $350 | 80% | |||||||||||||
5.44% p.a. | 5.50% p.a. | $2,820 | Principal & Interest | Variable | $0 | $835 | 70% | |||||||||||||
5.64% p.a. | 5.65% p.a. | $2,883 | Principal & Interest | Variable | $0 | $100 | 80% | |||||||||||||
5.64% p.a. | 5.57% p.a. | $2,883 | Principal & Interest | Variable | $0 | $350 | 90% | |||||||||||||
5.74% p.a. | 5.77% p.a. | $2,915 | Principal & Interest | Variable | $0 | $445 | 90% | |||||||||||||
5.79% p.a. | 5.82% p.a. | $2,931 | Principal & Interest | Variable | $0 | $350 | 90% |
First published in June 2024
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