Changes follow firm's 2015 review of customer behaviour
Charges are unclear in many areas, advisers say
Self-invested personal pensions (SIPP) have failed to properly disclose retained interest charges linked to cash accounts and now face stricter regulatory rules.
Providers have said a charge cap on income drawdown, as proposed by Labour leader Ed Miliband, is "unnecessary" and a "solution to a problem that does not even exist".
Royal London has reported a 45% slump in pre-tax profit in H1, pointing to regulatory charges as a key contributor, while its wrap platform Ascentric saw new business slide 20%.
Royal London has said it will continue to pay adviser commission on its workplace pension schemes - currently branded Scottish Life - until 2016.
Pension charges for workplace schemes will be subject to a 0.75% cap under government plans confirmed today.
Progress on the annuities market, charges and defined ambition (DA) may have "stalled", the Work and Pensions Select Committee says.