Figures released by the Jersey Financial Services Commission also show that the value of funds under investment management have decreased by more than £0.5 billion during the three month period.
The statistics have been collated by the Commission for the period ending 30 June and show that bank deposits have decreased by £21.7 billion to £174.2 billion.
However, Jersey Finance chief executive Geoff Cook said that the decline is largely as a result of currency fluctuations, as opposed to a ‘substantial loss of banking business’.