Ns&i cuts Premium Bond prize-fund to 3.3% — what changes for holders and prize pools from April

What changes because of the cut is straightforward: ns&i is reducing the headline prize-fund rate and that will reshape both the odds of winning and the mix of prizes paid out in April’s draw and beyond. The move makes guaranteed-interest accounts relatively more attractive for many savers, trims some larger prizes while boosting small payouts, and leaves the tax-free lure of a big win intact but statistically weaker.

Ns&i’s cut: immediate consequences for odds, prize pools and prize mix

The annual prize-fund rate is being lowered from 3. 6% to 3. 3% for the April draw onwards. Alongside that shift the odds of any single bond number winning a prize will lengthen from 1 in 22, 000 to 1 in 23, 000; those odds had been stable since December 2024. The April draw is expected to contain close to six million tax-free prizes with an overall value of about £375m.

How the prize distribution will change in April

To reflect the lower prize-fund, higher-value awards are being trimmed while the count of the smallest prizes will increase. Examples built into the April plan include a fall in the number of £100, 000 prizes from 78 this month to an estimated 71, £25, 000 payouts dropping from 311 to 284, and £25 prizes rising from roughly 2. 6 million to just over 2. 8 million.

How this alters chances of winning and headline returns

Premium Bonds award tax-free prizes between £25 and £1m instead of paying interest, so the annual prize-fund rate is the nearest thing they have to an interest rate. In practice, most people with typical luck will not see returns equal to the headline rate (3. 6% or the new 3. 3%), even with the maximum £50, 000 invested. That gap is why guaranteed-interest accounts can beat Premium Bonds for many savers.

• Example comparison: a top standard easy-access rate of 4. 5% would pay £45 in interest per year for every £1, 000 saved.
• Top cash ISA easy-access rate is 4. 4% (tax-free), cited as higher than the current Premium Bond prize rate of 3. 6% in recent commentary.
• Premium Bond prizes are tax-free, which matters if you have larger cash sums and have used up an annual £20, 000 ISA allowance.

Here’s the part that matters for taxable savers: personal savings allowances were listed as follows — basic (20%) taxpayers do not pay tax on the first £1, 000 of interest; higher (40%) taxpayers do not pay tax on the first £500; top (45%) taxpayers pay tax on all interest. With a 4. 5% non-ISA rate, it takes just over £22, 222 in savings for a basic-rate taxpayer to exceed their allowance and just over £11, 111 for a higher-rate taxpayer.

Local results: Norfolk’s big winner and county totals

In this month’s Premium Bonds draw somebody in Norfolk won £1, 000, 000. They were not alone locally: 369 people across the county shared £1, 919, 000, averaging £5, 214 each. The second-biggest local prize was a £50, 000 win in Norwich. County breakdowns included nine winners of £25, 000, 15 winners of £10, 000 and 38 winners of £5, 000. By comparison, last month 349 people in the county shared £948, 000, averaging £2, 724 per person.