Former NSW premier Mike Baird has told associates he has no intention of returning to politics after stepping down as chief customer officer of the National Australia Bank after three years at the lender.

Mr Baird joined NAB six weeks after stepping down from state politics in 2017 to lead the institutional arm of the bank and moved to consumer banking the following year. The bank said in a statement to the ASX on Thursday morning Mr Baird will leave the role on April 15 and take a break before considering new opportunities.

Former NSW premier Mike Baird is leaving NAB. Credit:Penny Stephens

Mr Baird stood by NAB as its reputation took a hit during the banking royal commission, including harsh criticism of former chief executive Andrew Thorburn and chairman Ken Henry in commissioner Kenneth Hayne's final report.

Mr Baird was rumoured to be among the candidates for the chief executive role after Mr Thorburn's departure following the commission's scathing findings, but the bank eventually tasked former Commonwealth Bank retail boss Ross McEwan with rebuilding its battered reputation as its new CEO.