Your Premium Bonds are probably doing nothing for you – and the math proves it
For millions of UK savers, Premium Bonds have long represented a fun, low-risk way to stash cash with the dream of landing a life-changing £1 million prize.
Government-backed by National Savings & Investments (NS&I), they offer tax-free prizes instead of interest, with the allure of “you can’t lose your money” and the thrill of the monthly draw.
But new analysis by investment platform AJ Bell shows that if you’re holding less than £1,000 in Premium Bonds, as three-quarters of account holders do, your bonds are almost certainly earning you nothing at all.
Data obtained by AJ Bell through a Freedom of Information request shows that fewer than 1% of all prizes distributed between February 2025 and January 2026 went to accounts worth less than £1,000.
Even expanding the scope to holdings up to £10,000, only 6% of prizes landed in those accounts during the same 12-month period.
Meanwhile, holders with the maximum £50,000 balance scooped up a disproportionate 53% of all prizes awarded.
No accident
Premium Bonds function like a giant prize draw: each £1 bond gets one entry into the monthly draw, with odds currently at 22,000 to 1 per bond. This is worsening to 23,000 to 1 from April 2026.
The more bonds you hold, the more entries you have, and the better your statistical chance of winning something.
The data shows small holdings simply don’t generate enough entries to meaningfully participate in the prize pool.
Over 14 million Premium Bonds holders, nearly two-thirds of all accounts, have never won any prize, big or small. Among these perpetual non-winners, the average holding is just £128.91, up slightly from the previous year but still tiny.
“There will likely be many Premium Bond holders who believe the 3.3% represents a return on cash they hold in the accounts, but in reality it masks that most people will never win anything,” said Laura Suter, Director of Personal Finance at AJ Bell.
“The rate is also eclipsed by many other cash saving accounts currently on the market, and comes well under what someone might expect to make on their money if they were to invest it in the stock market for the long term,” she said.
Simple maths
The math gets even clearer over time. AJ Bell illustrated the opportunity cost: if someone had invested the average non-winning holding of £128.91 in a global index fund (like Fidelity Index World) 10 years ago, it would have grown by over 252%, turning into around £454.
By comparison, the same amount in Premium Bonds likely sat stagnant, with no prizes to show for it.
For £1,000 invested over the same period, the difference balloons to thousands in potential gains from investing versus near-zero from small-stake bonds.
As the prize fund rate falls and odds lengthen in April 2026, the product becomes even less competitive against straightforward high-interest savings options.
