
It is thought that Boulton is close to securing a position elsewhere. HSBC refused to comment on his departure, although it is believed that the search for his replacement will begin shortly.
Until the appointment, the bank's marketing functions will be overseen by HSBC head of UK marketing Philip Mehl, First Direct marketing director Mark Mullen and M&S Money head of marketing Amanda Newman, reporting to HSBC's UK head of customer propositions, Carlos Wanderley.
HSBC's most recent marketing campaign centred on its Plus current account, for which a monthly fee of £12.95 is charged. This focus was intended to position it as a brand for aspirational cosmopolitan consumers, in contrast with fellow high-street banks such as Barclays, Lloyds TSB and Halifax.
Boulton led the relaunch of the bank's upmarket banking service, HSBC Premier, in 2007. He joined HSBC in 2005 from HBOS, where he oversaw the Halifax brand and the launch of its 'staff as stars' marketing campaign, the ads for which were created by DLKW.
Prior to joining HBOS, Boulton worked as crisps marketing director at PepsiCo Walkers Snack Foods.
He began his marketing career with a seven-year stint at Unilever.