Firms such as Fidelity and Skandia had hit out at the proposals, which would see the Active, Balanced and Cautious sectors renamed A, B and C as well as introducing a fourth category – Managed D.
The consultation period for the proposals was due to end this Friday, 17 June, but will now remain open until 29 July.
The implementation date for the proposals, originally set as 1 July, has now been rescheduled for October. A spokeswoman for the IMA said it was responding to members’ requests for more flexibility with regard to the deadlines.
IMA chief executive Richard Saunders responded to what he admitted was "a torrent of criticism” by calling on the industry to suggest their own solutions; Fidelity’s UK managing director Gary Shaughnessy later did just that in suggesting a labelling system based on risk-asset exposure.