It means many savers could boost their wealth by claiming a pot from a previous employer or old personal pension scheme.
Anyone can get in touch with previous employers to check whether they had a savings scheme – or contact pension providers.
Even savers who don’t have details can look for forgotten pensions, through the official pension tracing service.
Older schemes typically have higher charges than new pensions schemes, so anyone who finds an old pot should consider transferring, according to Sarah Coles from provider Hargreaves Lansdown.
She said: “Modern pensions are easier to keep track of, they also tend to have lower charges than some older schemes.”
But first savers should check for any valuable guarantees with old schemes that could be worth keeping, Ms Coles added.
It comes as the Government prepares to launch a so-called ‘Pensions Dashboard,’ which will allow savers to have an overview of all saving pots in one place.
A prototype of the tool is set to launch next year and should mean fewer people lose track of pension pots.
Its hoped the dashboard will also help drive engagement with savings and help people make better financial decisions regarding their retirement.
Yvonne Braun, director of long-term savings and protection policy at the ABI, said: “Now that so many people are comfortable using a range of online financial services, it’s an obvious next step to bring together all the information from all the different pension schemes people have over a lifetime so they can get an overview as they head towards retirement.”