Below are the long-term credit ratings of Australian banks. The four major banks ANZ, Commonwealth, NAB and Westpac are among the strongest and best in the world from a credit standpoint. Five banks have a long-term credit rating of AA- from Standard & Poor's and six banks have long-term debt rating of Aa3 from Moody’s. Ratings may be revised or withdrawn at any time by the rating agencies.
| No | Bank | Moody's | Standard & Poor's | Fitch Ratings |
| 1 | ANZ Banking Group | Aa3 | AA- | AA- |
| 2 | Commonwealth Bank of Australia | Aa3 | AA- | AA- |
| 3 | National Australia Bank | Aa3 | AA- | AA- |
| 4 | Westpac Banking Corporation | Aa3 | AA- | AA- |
| 5 | Rabobank Australia Ltd | Aa3 | - | - |
| 6 | Bankwest (1) | Aa3 | AA- | AA- |
| 7 | HSBC Bank Australia Limited | A1 | A+ | n/r |
| 8 | Suncorp Bank | A1 | A+ | A+ |
| 9 | AMP Bank Ltd | A2 | A | - |
| 10 | Macquarie Bank Limited (MBL) | A2 | A | A |
| 11 | Bendigo and Adelaide Bank | A3 | BBB+ | A- |
| 12 | ING Bank (Australia) Ltd | A3 | A- | A |
| 13 | Bank of Queensland Limited | A3 | BBB+ | A- |
| 14 | Citigroup Pty Limited | A3 | - | - |
| 15 | Members Equity Bank Pty Ltd (ME Bank) | Baa1 | BBB | - |
| 16 | Arab Bank Australia Limited (ABAL) | - | BB+ | BBB- |
| 22 | Bank Australia | Baa1 | BBB | |
| 17 | Auswide Bank | Baa2 | BBB- | BBB+ |
| 18 | Defence Bank | - | BBB | - |
| 19 | G&C Mutual Bank | Baa1 | BBB- | - |
| 20 | Greater Bank | - | BBB | - |
| 24 | Heritage Bank | Baa1 | - | BBB+ |
| 21 | IMB Bank | Baa1 | BBB | BBB+ |
| 23 | MyState Bank Ltd | Baa1 | BBB | - |
| 25 | Police Bank | BBB | BBB+ | |
| 26 | Qudos Mutual (trading as Qudos Bank) | BBB- | ||
| 27 | QPCU Ltd (trading as QBANK) | BBB- | ||
| 28 | Rural Bank (2) | BBB+ | ||
| 29 | Teachers Mutual Bank | Baa1 | BBB |
Credit Ratings as of March 2019.
1 - Bankwest (formerly The Bank of Western Australia) has credit ratings through its parent company the Commonwealth Bank of Australia.
2 - Rural Bank is a wholly-owned subsidiary of Bendigo and Adelaide Bank.
Standard & Poor's (S&P)
Standard & Poor's, with offices in 24 countries and a history that dates back more than 150 years, is a global leader in objective risk analyses and evaluations of the credit worthiness of issuers worldwide.
Fitch Ratings
Fitch Ratings, founded in December 1913 by John Knowles Fitch, is an international rating agency that provides global capital market investors with ratings and research.
Moody's Investor Services
Moody's maintains a presence in 28 countries and is one of the world's most widely utilized sources for credit ratings, research and risk analysis. The company was established in 1909.