Australia's four major banks warned of slower earnings growth as corporate loan impairments rise

Asset quality pressure will derive from multiple headwinds.

Moody's Investors Service says that Australia's four major banks face a moderate weakening in asset quality and a slowdown in earnings growth over the rest of 2016.

"More difficult operating conditions have become prevalent over recent months, resulting in a sharp rise -- from an exceptionally low base -- in large, single-name loan impairments in the banks' corporate portfolios," says Ilya Serov, a Moody's Senior Vice President.

"The expected pressure on asset quality -- which currently appears moderate -- will derive from multiple headwinds, including potential further stress in resources- related sectors and regions, a worsening outlook for residential property developments, and continued stress in the New Zealand dairy sector," adds Serov."While the weakened outlook for corporate asset quality could put pressure on the major banks' credit profiles, particularly in the context of their very high ratings, we nevertheless expect the banks to remain strongly creditworthy on an absolute and through-the-cycle basis", he concludes.

Moody's conclusions are based on the 1H 016 financial results of the Australia and New Zealand Banking Group Limited, National Australia Bank, and Westpac Banking Corporation, and the 3Q 2016 trading update by the Commonwealth Bank of Australia. The conclusions are contained in a just-released report, "Banks - Australia: 1H 2016 Results Show A Weakening Outlook for Asset Quality; Stable Balance Sheet Buffers".

Here's more from Moody's:

The four major banks' domestic retail franchises continue to exhibit exceptionally strong profitability and their residential mortgage portfolios are supported by record low interest rates. In addition, their balance sheets are solid, showing improved capital and liquidity buffers.

Moody's notes that the major banks reported higher loan impairments during 1H 2016, averaging 0.19% of gross loans, up from 0.16% in 2H 2015. CBA has also reported that its loan impairment rose to 0.25% during its 3Q 2016 reporting period. These results suggest that further deterioration, closer towards the long-run average of 0.35-0.40%, is likely.

Moody's also expects profitability to come under moderate pressure, due to additional provisioning and the negative impact on margins of a prolonged period of low interest rates.

On the other hand, capital levels are likely to remain stable or improve moderately, as the banks position themselves in anticipation of likely further regulatory reform.

They have also improved their liquidity buffers, with the Liquidity Coverage Ratio (LCR) rising to 126% for ANZ, 130% for CBA, 125% for NAB, and 127% for Westpac. In each case, an increase over the previously recorded LCR has occurred. The most recent levels are also somewhat above Moody's long-term expectations.