What are the top 10 biggest banks in Australia?
When choosing to deposit your savings or take out a home loan, you may well wonder about the size of the bank or lender you’re doing business with, and whether they are one of the major players in the field.

When choosing to deposit your savings or take out a home loan, you may well wonder about the size of the bank or lender you’re doing business with, and whether they are one of the major players in the field.
Each month, the Australian Prudential Regulation Authority (APRA) releases data on Australia’s authorised deposit-taking institutions (ADIs). This data includes information on which banks, building societies or credit unions are the biggest by the size of their lending to owner-occupiers and investors, as well as the size of deposits they hold.
Bear in mind that Australia is also home to a number of ‘non-bank’ lenders who aren’t ADIs and so won’t appear in the tables below. These institutions tend to be relatively small compared to Australia’s largest banks. They can lend money but aren’t allowed to offer their own bank accounts to customers.
What are the ‘big four banks’ in Australia?
Though the banking landscape in Australia is vast, there are four major players typically referred to as the ‘big four banks’ – these institutions are the Commonwealth Bank of Australia, National Australia Bank, Westpac Banking Corporation and the Australia and New Zealand Banking Group. If you’d like to know more about the major banks, Canstar has compared all four on customer satisfaction, along with a number of other banks, as part of its Most Satisfied Customers – Banking Awards.
As you will see from the lists below, the big four banks continue to dominate in the areas of home loan lending to investors and owner-occupiers, but Macquarie Bank continues to grow its presence in these areas and is now Australia’s fifth-largest bank in both categories, as well as in the category of most deposits held. Below are the top 10 biggest banks in Australia in the areas of owner-occupier and investor lending, as well as total deposits held and size of credit card lending per household, per APRA’s most recent September 2024 figures.
Top 10 biggest banks by size of home lending to owner-occupiers
Institution | Value (billion) |
Commonwealth Bank | $377.19 |
Westpac | $315.21 |
NAB | $211.98 |
ANZ | $203.10 |
Macquarie Bank | $77.50 |
ING | $50.78 |
Bendigo and Adelaide Bank | $46.81 |
BOQ | $41.11 |
Suncorp Bank | $39.00 |
HSBC | $22.09 |
Source: www.canstar.com.au, 1 November 2024. Based on APRA Monthly Authorised Deposit-taking Institution Statistics for September 2024. Values based on ADIs’ domestic books, at the end of the month.
Top 10 biggest banks by size of home lending to investors
Institution | Value (billion) |
Commonwealth Bank | $190.49 |
Westpac | $159.97 |
NAB | $109.18 |
ANZ | $101.32 |
Macquarie Bank | $48.14 |
BOQ | $17.44 |
Suncorp Bank | $15.35 |
Bendigo and Adelaide Bank | $14.80 |
ING Bank | $10.72 |
HSBC | $9.59 |
Source: www.canstar.com.au, 1 November 2024. Based on APRA Monthly Authorised Deposit-taking Institution Statistics for September 2024. Values based on ADIs’ domestic books, at the end of the month.
Top 10 biggest banks by size of deposits held
Institution | Value (billion) |
Commonwealth Bank | $403.96 |
Westpac | $315.48 |
NAB | $210.25 |
ANZ | $177.94 |
Macquarie Bank | $67.19 |
ING Bank | $51.15 |
Bendigo and Adelaide Bank | $46.21 |
Suncorp Bank | $35.99 |
BOQ | $34.43 |
HSBC | $17.93 |
Source: www.canstar.com.au, 1 November 2024. Based on APRA Monthly Authorised Deposit-taking Institution Statistics for September 2024. Values based on ADIs’ domestic books, at the end of the month.
Top 10 biggest banks by size of credit card lending to households
Institution | Value (billion) |
NAB | $7.80 |
Commonwealth Bank | $7.74 |
Westpac | $6.07 |
ANZ | $4.79 |
HSBC | $0.50 |
Macquarie Bank | $0.35 |
Bendigo and Adelaide Bank | $0.28 |
BOQ | $0.17 |
ING Bank | $0.15 |
People’s Choice Credit Union | $0.09 |
Source: www.canstar.com.au, 1 November 2024. Based on APRA Monthly Authorised Deposit-taking Institution Statistics for September 2024. Values based on ADIs’ domestic books, at the end of the month.
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^WARNING: This comparison rate is true only for the examples given and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate.
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Cover image source: Ben Jeays/Shutterstock.com
This article was reviewed by our Editor-in-Chief Nina Rinella before it was updated, as part of our fact-checking process.

Alasdair Duncan is Canstar's Content Editor, specialising in home loans, property and lifestyle topics. He has written more than 500 articles for Canstar and his work is widely referenced by other publishers and media outlets, including Yahoo Finance, The New Daily, The Motley Fool and Sky News. He has featured as a guest author for property website homely.com.au.
In his more than 15 years working in the media, Alasdair has written for a broad range of publications. Before joining Canstar, he was a News Editor at Pedestrian.TV, part of Australia’s leading youth media group. His work has also appeared on ABC News, Junkee, Rolling Stone, Kotaku, the Sydney Star Observer and The Brag. He has a Bachelor of Laws (Honours) and a Bachelor of Arts with a major in Journalism from the University of Queensland.
When he is not writing about finance for Canstar, Alasdair can probably be found at the beach with his two dogs or listening to podcasts about pop music. You can follow Alasdair on LinkedIn.
The comparison rate for all home loans and loans secured against real property are based on secured credit of $150,000 and a term of 25 years.
^WARNING: This comparison rate is true only for the examples given and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate.
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The comparison rate for all home loans and loans secured against real property are based on secured credit of $150,000 and a term of 25 years.
^WARNING: This comparison rate is true only for the examples given and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate.