Delaying the introduction of the retail distribution review (RDR) by one year, as proposed by MPs last week, could result in an extra 10% of advisers remaining in the industry, IFA network Openwork said.
The company's initial estimates of the number of practitioners who would leave their jobs as a result of RDR was between 20% and 25%.
But it believes a 12-month delay could result in approximately 5% to 10% of additional advisers successfully making the transition.
Mary-Anne McIntyre (pictured), the newly-installed CEO at Openwork, said: "While we fully agree with the general principle that advisers should be suitably qualified to deliver advice, we also support the TSC's proposal to remove the hard cliff edge, although we appreciate the difficulties inherent in delivering a smoothed approach."
Openwork managing director of distribution, Mark Duckworth, said a delay would also have positive financial benefits to advice businesses.
"We believe the costs of implementing RDR will add around 15% to 20% to the cost base of distribution companies and adviser firms in dealing with new processes and procedures in addition to attaining the required diploma level qualification and the loss of client facing time.
"Spreading this load over two years rather than one will be a fantastic help at a very difficult time for advisers."
The FSA has so far rebuffed calls from MPs to allow more time for advisers to meet the RDR's rules.
"The FSA remain committed to implementation from January 2013," it said in a statement.
It said there was "clear evidence" the industry is well advanced in its preparations, and that 49% of IFAs were already qualified and at least 82% expected to remain as retail investment advisers.
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