The Work and Pensions Committee (WPC) has said a cold-calling ban could be in place by summer if the government heeds its suggestions.
In a short report on its inquiry into the pensions freedoms, published today, the WPC said the current timeframe for such a ban is too long and a simple amendment to the Financial Guidance and Claims Bill could have it in place by June.
The proposed amendment, set out in Protecting pensions against scams: priorities for the Financial Guidance and Claims Bill, would require work and pensions minister David Gauke to bring in the ban by June 2018 or make a statement explaining the delay.
The ban would apply to phone calls, text messages, e-mails and other forms of direct communication from firms an individual does not already have a connection with.
Chairman Frank Field MP said the ban could be put in place very simply.
"Every day that passes without a ban, people are being avoidably conned out of their life savings," he said. "There is no need to over-complicate this: our proposal would see an enforceable ban in place by summer, closing at least one door on rafts of scammers at a stroke."
The committee added that its proposed amendment - which would take the place of a previous amendment made by the House of Lords - would make the ban "future proof" and adaptable in case scams continue to evolve.
The government has so far only outlined its intention to have a ban in place before 2020, with draft legislation being prepared for public consultation sometime next year.
Association of British Insurers director of policy for long-term savings and protection Yvonne Braun said: "People's life savings must not be left vulnerable to scammers and con artists. With mortgages already protected by a cold-calling ban it is high time pensions were given the same level of protection. Further measures to prevent fraudsters switching to spam emails and texts will also be important."
The committee also suggested a form of auto-guidance for savers, enforced by the Financial Conduct Authority, seeking to use the pension freedoms. It argued a "guidance by default" provision would allow members to make better-informed decisions by shopping around, and also protect them against potential scammers.
Field continued: "Low saver engagement and high financial value makes pensions rich pickings for scammers offering fantastical returns or seemingly clever advice. The strongest weapon in the armoury against this is good advice and guidance.
"Making guidance the default option, combined with the ban on cold calling, would be a simple but big step forward in consumer protection in the era of pension freedoms."
The rule would be subject to three exceptions where the pot is of low value, the individual has already received advice or guidance, or the access would for "routine consolidation" of pots.
At a previous inquiry hearing, pensions and financial inclusion minister Guy Opperman rejected the need for mandatory guidance, but the WPC's suggestion would allow members to opt out.
AJ Bell senior analyst Tom Selby said, although evidence shows savers feel more confident about their decision after accessing guidance, the WPC's proposal "risks creating problems".
"Savers using the pension freedoms generally adopt a two-stage process of deciding how they want to access their pension and then taking action," he said. "Forcing people to take guidance at the point they are taking action is too late and they are unlikely to be happy at the prospect of a barrier being put in the way of them accessing their money.
"They need guidance much earlier when they are deciding how to access their pension savings. The committee would likely have come to the same conclusion if it had actually spoken to a pension provider or customer who has been through the process."
The WPC's report is non-binding and does not require the government to take any action.
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