Savings Analysis: NS&I Cuts Premium Bonds Prize Rate to 3.30% — Should You Cash In or Hold On?

From the April 2026 prize draw, NS&I will reduce the annual prize fund rate from 3.60% to 3.30%. This is the rate used to calculate the total prize pot distributed each month. At the same time, the odds of any individual £1 Bond winning a prize will shift from 22,000 to 1 to 23,000 to 1 — a roughly 4.5% reduction in your chances of winning.

To put this in practical terms, someone holding the maximum £50,000 in Premium Bonds could previously expect to win around £1,800 per year at the 3.60% rate, assuming average luck. Under the new 3.30% rate, that expected return falls to approximately £1,650 — a reduction of £150 per year. For a more typical holding of £10,000, the average annual return drops from around £360 to £330.

Critically, these are average figures. Premium Bonds do not pay interest — they enter you into a prize draw. The distribution is heavily skewed: a small number of holders win large prizes (including two £1 million jackpots each month), while the majority win little or nothing in any given month. NS&I's own data shows that in any single draw, only a fraction of bondholders receive a prize. This means the 'effective rate' experienced by most holders is significantly below the headline 3.30% figure.

The timing of the rate cut is particularly notable given the inflation backdrop. CPI inflation rose sharply through 2025, hitting 3.8% in July, August, and September before easing to 3.0% in January 2026. The broader CPIH measure, which includes owner-occupier housing costs, stood at 3.2% in January 2026.

This chart illustrates the shrinking gap between the Premium Bonds prize fund rate and CPI inflation. When Premium Bonds offered a 4.0% prize rate in early 2025, they sat comfortably above inflation. Now, with the rate falling to 3.30% and inflation at 3.0%, the real return — even assuming average luck — is a wafer-thin 0.30%. For the Bank of England's preferred CPIH measure at 3.2%, the real return is effectively just 0.10%.

For most bondholders who do not achieve the average return due to the lottery-style distribution of prizes, the real return is likely negative. In other words, their savings are losing purchasing power month by month. This is a meaningful shift from 2023 and early 2024, when Premium Bonds offered one of the best government-backed returns available.

Related reading: See our savings hub · Spring Statement 2026 · [Banking Guide](/posts/banking-guide-fscs-deposit-protection, overseen by the FCA (fca.org.uk) (fca.org.uk/consumers/deposit-protection)-uk-how-your-bank-savings-are-protected-up)

NS&I has cut rates across its product range, not just Premium Bonds. The Direct Saver, its flagship easy-access account, currently pays 3.05% AER, while Income Bonds offer 3.01% gross (3.05% AER). Both are variable and could fall further if the Bank of England continues to cut the base rate, as markets expect.

By contrast, the best easy-access savings accounts from banks and building societies are currently paying in the region of 4.5% to 4.8% AER — significantly more than anything NS&I offers. Even the best easy-access Cash ISAs are paying above 4.0%, offering a tax-free return that comfortably beats Premium Bonds' expected return for most holders.

The gap is stark. A saver with £50,000 — the Premium Bonds maximum — could earn approximately £2,350 per year in a top easy-access account at 4.70% AER, compared to an expected £1,650 from Premium Bonds at the new 3.30% rate. That is a difference of £700 per year — or nearly £60 per month — in forgone interest.

However, there is one crucial advantage Premium Bonds retain: all prizes are completely free from UK Income Tax and Capital Gains Tax. For higher-rate taxpayers, whose Personal Savings Allowance is just £500, and additional-rate taxpayers who have no allowance at all, the tax-free nature of Premium Bonds can narrow the gap significantly. A higher-rate taxpayer earning 4.70% on £50,000 would pay 40% tax on interest above £500, reducing their effective after-tax return. For additional-rate taxpayers paying 45%, Premium Bonds can still be competitive despite the headline rate cut.

The decision on whether to keep your Premium Bonds depends on your personal tax position, your attitude to fixed returns versus prize-draw excitement, and how much you hold.

For basic-rate taxpayers with modest holdings (under £20,000), the case for moving money out of Premium Bonds has strengthened considerably. With a £1,000 Personal Savings Allowance, a basic-rate taxpayer can earn up to £1,000 in savings interest per year without paying any tax. At 4.70% AER, you would need over £21,000 in savings before breaching this allowance. For these savers, a top-paying easy-access account or Cash ISA will almost certainly deliver a better return than Premium Bonds.

For higher-rate and additional-rate taxpayers with larger holdings, the calculation is more nuanced. If you have already used your £20,000 ISA allowance and your £500 Personal Savings Allowance (or £0 for additional-rate taxpayers), Premium Bonds remain one of the few ways to earn a tax-free return on cash savings. Even at 3.30%, the tax-free nature of the prizes means the effective pre-tax equivalent rate is around 5.50% for a higher-rate taxpayer and approximately 6.00% for an additional-rate taxpayer — both of which beat the market.

There is also the psychological factor. Many Premium Bonds holders enjoy the monthly anticipation of the prize draw — the possibility, however remote, of winning £1 million. For some, this 'entertainment value' is worth a slightly lower expected return. NS&I data consistently shows that most holders do not cash in their bonds even when rates fall, suggesting this emotional attachment is powerful.

The Premium Bonds rate cut should be viewed in the context of a broader downward trend in savings rates. The Bank of England cut the base rate to 4.5% in February 2025, with the Monetary Policy Committee voting 7-2 in favour (two members preferred a larger 0.50 percentage point cut to 4.25%). Markets are pricing in further cuts through 2026, which will inevitably drag savings rates lower across the board.

The 10-year gilt yield — a key benchmark for longer-term savings and mortgage rates — has remained elevated at around 4.45% in January 2026, reflecting persistent inflation concerns and global bond market pressures. This has helped keep fixed-rate savings bonds and longer-term products relatively attractive, even as the Bank of England's base rate has begun to fall.

The UK labour market is also showing signs of cooling, with unemployment rising steadily from 4.4% in December 2024 to 5.2% by November 2025. This weakening employment picture, combined with subdued GDP growth, supports the case for further rate cuts — and further falls in savings rates. For savers, this means the window to lock in attractive fixed rates may be narrowing.

NS&I's decision to cut rates ahead of the broader market is not unusual. As a government-backed institution, NS&I must balance its mandate to raise cost-effective funding for the government against the need not to distort the wider savings market. When NS&I rates are too generous, it draws deposits away from banks and building societies; the Treasury regularly adjusts NS&I's fundraising targets to manage this. The current cuts suggest the government believes it can afford to offer less to savers while still meeting its funding needs.

This article is for informational purposes only and does not constitute regulated financial advice. The value of investments can go down as well as up, and you may get back less than you invest. For personalised advice, consult a qualified financial adviser.

Sources: Bank of England base rate, FSCS deposit protection.