Shares of the Australian regional lender declined as much as 4.7% to A$5.51 by 0005 GMT and looked set to post their worst day since May 31 if losses held.

BOQ logged a statutory net profit after tax of A$124 million ($79.79 million) for the year ended Aug. 31, compared with A$409 million a year earlier. It cut its final dividend to 21 Australian cents per share from last year's 24 Australian cents apiece.

Net interest margin fell to 1.69%, compared with a restated 2022 number of 1.71%. The bank recorded a one-off impairment charge of more than A$300 million, which also hit its earnings.

The small-cap lender expects revenue and margin pressures to continue into 2024 fiscal year, reflecting credit growth and competition, while flagging a possible low single-digit cost growth.

"A very weak result, with the likelihood of further negative revisions to FY24 consensus expectations," analysts at Citi said in a note, adding that the management would have a "tough task in building credibility in their medium-term productivity story."

"We recognise that this has been a difficult year for our shareholders and take accountability for the operational risk failings," BOQ CEO Patrick Allaway said in a statement.

($1 = 1.5540 Australian dollars)

(Reporting by Echha Jain in Bengaluru; Editing by Subhranshu Sahu)

By Echha Jain