From the September draw you’re likely to win more money.
After some massive base rate increases from the Bank of England that saw the Premium Bond prize rate hit the highest level since 1999, for the last few years they’ve been on the way down – until now.
Last month the Prize Rate went up, but National Savings and Investments isn’t stopping there, with another increase in September set to see an extra £63 million worth of prizes handed to Premium Bond holders as the prize rate rises from 3.8% to 4.35%.
Here’s what this means in practice for your chance of winning, and how it compares to the latest best buy savings accounts.
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What are Premium Bonds?
Premium Bonds are effectively savings accounts held with the government. Rather than getting interest back on your savings, you are entered into a draw with a top prize each month of £1 million.
Other prizes vary between £25 and £100,000 and, if you do win, it’s all tax-free. You can read more about how they work here.
The new Premium Bond prize rate
From the September 2026 draw, the Premium Bond prize rate will be 4.35%. It’ll rise from the current rate of 3.8%.
The odds of winning will increase to 21,000 to 1 (from 22,000 to 1 now and 24,000 to one in June) and the number of prizes available will rise by 308,194.
At the same time, the total prize fund is increasing, this time by more than £60 million to £497 million a month. The number of £25 prizes will actually fall, but there’s a big increase in the number of £50 and £100 prizes, with smaller increases in the number of every other value of prize except the £1million top one.
How much could you win?
Here’s how the new prize rate in July compares to the one in May 2026. Not only are you less likely to get a prize, those that do are more likely to win a smaller amount.
| Value of prizes | Number and total value of prizes in August 2026 (estimate) | Number and total value of prizes in September 2026 (estimate) | ||
| £1,000,000 | 2 | 2 | ||
| £100,000 | 83 | 95 | ||
| £50,000 | 165 | 192 | ||
| £25,000 | 331 | 382 | ||
| £10,000 | 827 | 954 | ||
| £5,000 | 1,654 | 1,909 | ||
| £1,000 | 17,347 | 19,892 | ||
| £500 | 52,041 | 59,676 | ||
| £100 | 1,931,214 | 2,366,135 | ||
| £50 | 1,931,214 | 2,366,135 | ||
| £25 | 2,289,959 | 1,717,659 | ||
| Total: | 6,270,339 £436,833,475 | 6,533,031 £497,326,725 |
Previous Premium Bond prize rates
- September 2026 – 4.35%
- July 2026 – 3.8%
- April 2026 – 3.3%
- August 2025 – 3.6%
- April 2025 – 3.8%
- January 2025 – 4%
- December 2024 – 4.15%
- March 2024 – 4.4%
- September 2023 – 4.65%
- July 2023 – 4%
- June 2023 – 3.75%
- March 2023 – 3%
- February 2023 – 3.15%
- January 2023 – 3%
- September 2022 – December 2022: 2.2%
- May 2022 – August 2022: 1.4%
- December 2020 – April 2022: 1%
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What you’ll probably win
It’s hard to give an exact figure on your likely winnings as 4.35% on Premium Bonds doesn’t mean you get £4.35 back for every £100. That’s the average return if you have average luck.
So there’s a good chance you’ll get nothing. Since the smallest prize is £25, you’d think you’d need around £575 saved to get the lowest prize (4.35% of £575 = £25). But the higher value prizes massively distort this.
With this rate, the odds of a bond (not a person) winning something are 21,000:1. That means for every 21,000 bonds in the draw, only one bond will win a prize and 21,999 bonds won’t.
In reality, it’s only those with close to the maximum £50,000 who are likely to get close to the headline rate (on average – it could be more or less). While those with less than a grand are likely to win nothing at all in any given month. So they’re going to be better options for those with more cash, and less good for those with smaller amounts.
The MoneySavingExpert Premium Bonds calculator usually gives a good indication of the wins over a year.
How the Premium Bond prize rate compares to savings accounts
The highest paying easy-access savings account you can put a decent amount of money into is from Cynergy Bank at 4.55%, that’s higher than the new Premium Bond prize fund rate.
And there are even higher paying options with some restrictions. Santander pays 6% on up to £4,000 on its Edge Saver (though it requires a current account) while regular savers from Lloyds and Santander pay 8%.
However, it’s worth noting that any prizes won via Premium Bonds are tax free. With interest rates increasing it could be you’re closer to going over your personal savings allowance, so money in Premium Bonds could help you avoid tax.
Or if you’re an additional rate taxpayer then it’s an option instead or as well as ISAs.
The best savings accounts
Check out our list of the highest paying regular, easy-access, fixed and ethical savings accounts
What about future interest rate changes?
Interest rates have been on hold since the Bank of England cut them from 4% to 3.75% in December 2025. Markets and analysts were expecting there to be at least one cut this year, but – since inflation started to rise again – now the most likely movement is up, not down.
That change in expectation is likely what’s behind the rise in the prize fund rate in September.
In general, if easy-access rates start changing, the Premium Bond prize rate will follow to keep them competitive. So if large changes happen to interest rates, up or down, NS&I tends to follow them by adjusting how much is paid out to Premium Bond holders.
Buying Premium Bonds
When to buy Premium Bonds
There’s one very important rule you need to know about Premium Bonds. Your money needs to have been held in Premium Bonds for a full month before it’s entered into a draw.
That means this August draw will only be for anyone who saves prior to the end of June 2026. It also means it makes sense to deposit money right at the end of a month than at any other time.
How to buy Premium Bonds
You buy Premium Bonds from the NS&I website or over the phone at a cost of £1 each, but you have to buy at least £25 worth. You have to be over 16 years old to buy Premium Bonds for yourself. If you are buying them for children, the account will be held by the parents/legal guardians until the child reaches 16.
