The Financial Services Authority (FSA) has confirmed it will press ahead with the ban on commission, despite suggestions European Commission proposals could hamper, or even put an end to, its plans.
St James's Place (SJP) has rejected accusations that the company is sales-driven.
Financial advisers will lose out on an estimated £80m worth of commission when the government outlaws contracting out of the state pension into private vehicles in April, Standard Life has said.
FundsNetwork has urged the regulator to change tack and include platform re-registration under adviser charging principles as part of a wide-ranging critique of the regulator's legacy asset paper.
Advisers have given a cautious welcome to a new tool claiming to reveal and compare the amount of commission consumers are currently paying through their investments.
FSA rules around legacy assets are "unclear" and "incomplete" and could result in less transparency for consumers, according to the Investment Management Association (IMA).
Platform FundsNetwork is developing functionality to allow advisers to declare whether or not their post-RDR activities constitute "advice" in a bid to clear up ambiguities surrounding legacy commission.
IFAs around the country are charging vastly different fees for the same work and should be forced to publish transparent fee menus, Which? has said.
With less than a year to go until it is banned outright, almost a fifth of advisory firms remain entirely reliant on commission, research suggests.