A group of Labour lords have tabled an amendment to the Pensions Bill that would force the government to impose a pension scheme charge cap by 30 April 2015.
Labour MP Rachel Reeves has demanded Prime Minister David Cameron "clarify" the government's position on a charge cap for defined contribution (DC) schemes.
Labour has vowed to push through a pension charge cap and make using an annuity broker mandatory should it win the next general election.
A Parliamentary early day motion praising (EDM) the decision to raise savings caps of share schemes has been supported by MPs from across the political spectrum.
Prime Minister David Cameron has said the state pension will continue to rise by at least 2.5% a year until 2020 if the Conservatives win the next election.
Shadow pensions minister Gregg McClymont has attacked the government's consultation on scheme charges as too short and "phoney".
The use of an annuity broker at retirement could be written into the latest version of the Pensions Bill after Labour tabled an amendment to the legislation.
Shadow chancellor Ed Balls has promised that a Labour government would restrict higher rate pensions tax relief.
Labour would force providers to fully disclose their pension scheme fees to members if it won the next general election, shadow pensions minister Gregg McClymont says.