Cash sums totalling £332billion are sat in accounts earning zero interest and losing purchasing power
Over six million Britons currently hold £10,000 or more in current accounts that are earning them no interest.
Analysis from savings app Spring found that the unproductive cash sat in accounts meant the value of their money was steadily eroding over time and damaging saver's outcomes.
Over 6.41 million current accounts contain balances of £10,000 or more paying no interest, while more than one million of those accounts hold £50,000 or over.
Overall, £322billion is sat in current accounts paying no interest.
Spring's head of Money, Derek Sprawling, said: “Many savers may not realise just how much they are losing by leaving larger balances in a current account that pays no interest.
"With six million savers holding over £10,000 in current accounts receiving no interest, there is clearly a need for people to review where their money is sitting and whether it could be working harder.
He added that bad habits and convenience that keeps money in zero-interest accounts, and that the impact on larger balances was "substantial."
Looking for an app with instant transfers and a competitive rate "could make a noticeable difference to returns over time”, he said.
In total, 91.5 million current accounts were in credit in April 2026, with 80 million of those paying no interest on balances.
Across all accounts receiving no interest, the average in credit balance stood at £4,023.
UK savers are still failing to make the most of their money, often due to a mix of habit, uncertainty and confusion.
Spring found that more than a third of respondents to its survey said they keep their savings with an account provided by their main current account provider, while 21 per cent keep their savings in their current account itself.
Just over a quarter said they had shifted their savings to a separate provider.
According to MoneySavingExpert, to lock in the best return, you must match your saving habits to the right account type: