Islamic banking assets with commercial banks globally grew to $1.3 trillion in 2011 and, one potential scenario projects it to reach $1.8 trillion in 2013, representing average annual growth of 17 per cent, says a report.
"The Islamic banking growth story continues to be positive, growing 50 per cent faster than the overall banking sector.
"High potential international markets - each in different stages of development and therefore requiring different penetration strategies - include Saudi Arabia, Malaysia, Qatar, Turkey and Indonesia," said the report.
This year, E&Y has launched the EY Islamic Banking Universe that tracks industry performance across core Islamic finance markets with a combined GDP of $5 trillion in 2011.
Islamic banking assets are forecast to grow beyond the milestone of $2 trillion by 2014, the report added.
Islamic banks continue to grapple with multiple challenges relating to sub-scale operation, asset quality, negative operating income from core activities and a weak risk culture, it said, adding "the severity of performance challenge has prompted several institutions to initiate wide-ranging transformation programs."