Premium bonds: more chance of win as NS&I ups prize fund rate again

by | Aug 25, 2026 | Financial

Premium bonds: more chance of win as NS&I ups prize fund rate again

National Savings and Investments announced changes to its premium bond offering effective in September, marking the second rate increase within two months. The prize fund rate will rise to 4.35% annually from the previous 3.8%, with the organisation estimating an additional 308,000 prizes available in the September draw compared to the current month. The total prize pool is expected to reach approximately £497m, an increase of about £63m.

The improved odds mean that each £1 bond number will have a 21,000-1 chance of winning, up from the previous 22,000-1 odds. The changes include a restructuring of prize distribution, with higher-value prizes becoming more frequent. For instance, the number of £100,000 prizes is projected to rise from 83 to 95, while £50,000 prizes will increase from 165 to 192. Conversely, the lowest-tier £25 prizes will decrease from approximately 2.3 million to around 1.7 million.

Experts characterise the rate increases as an aggressive strategy by the government-backed savings bank to attract deposits. One significant advantage of premium bonds is their tax-free status, particularly beneficial for higher-rate taxpayers. However, they offer no guaranteed returns and carry no interest component, making them vulnerable to inflation. Data from a freedom of information request revealed that approximately 62% of all premium bond holders have never won any prize.

Market analysts note that while the improved odds and increased prize availability are welcome developments, premium bonds remain fundamentally a game of chance rather than a reliable savings vehicle. In contrast, easy-access savings accounts are currently offering returns up to 5% with guaranteed interest. Observers suggest that upcoming changes to individual savings account regulations next spring may influence saver behaviour, potentially directing more funds toward premium bonds as cash Isa allowances are reduced for those under 65.

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