Australia's banking sector is rated one of the safest in the world. Big Four Australian banks (ANZ, Commonwealth, NAB and Westpac) have the high credit ratings from the three leading agencies. Following is a list of the best-rated Australian banks.

 Long-term credit ratings

Rank Bank Moody's Fitch Standard & Poor's
1 ANZ Banking Group Aa2 AA- AA-
2 Commonwealth Bank of Australia Aa2 AA- AA-
3 National Australia Bank Aa2 AA- AA-
4 Westpac Banking Corporation Aa2 AA- AA-
5 HSBC Bank Australia Ltd A1 n/r A+
6 Suncorp Bank A1 A+ A+
7 Bendigo and Adelaide Bank A2 A- A-
8 Macquarie Bank Ltd (MBL) A2 A A
9 Bank of Queensland A3 A- A-
10 Rural Bank  -  - A-

 Ratings as of June 10, 2016

 Top 5 Banks in Australia

Rank Bank Total Assets, A$b, (March 31, 2016)
1 ANZ Banking Group 895.278
2 Commonwealth Bank of Australia 903.075
3 National Australia Bank 868.730
4 Westpac Banking Corporation 831.760
5 Macquarie Group 196.755

 Consumer Banking Satisfaction

1 Teachers Mutual Bank 94.80%
2 Beyond Bank Australia 92.40%
3 Heritage Bank 90.50%
4 ING Direct 90.10%
5 Commonwealth 81.30%
6 NAB 79.90%
7 Westpac 79.40%
8 ANZ 78.00%

Source: Roy Morgan Report, 2016