Millions of Premium Bonds prizes are still unclaimed. Could some be yours?

There are more than 2.5 million unclaimed Premium Bonds prizes, collectively worth more than £101 million, according to data from NS&I in June 2025.

The top unclaimed prize is £100,000 – with eight winners yet to claim this windfall.

June’s jackpot winners in Edinburgh and Stockport have already been paid a visit by Agent Million, an anonymous NS&I employee whose job is to travel up and down the country to tell winners that they are now millionaires.

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Non-jackpot winners are informed of their fortune via post or email, so it’s important to keep your personal information up to date. If you don’t, you could be one of the millions sitting on an unclaimed Premium Bonds prize worth up to £100,000.

In June 2025, over 5.9 million Premium Bonds holders collectively won more than £416 million worth of prizes – with payouts ranging between £25 and £100,000. You can check if you were a Premium Bonds winner via the prize checker tool from 3 June.

If you moved abroad after buying some Premium Bonds then you are still eligible to claim prizes, so it’s worth checking for unclaimed prizes or lost bonds even if you have left the UK.

How many unclaimed Premium Bonds are there? 

There are at least 2,581,427 unclaimed Premium Bonds prizes worth £101,377,675 waiting to be claimed, according to NS&I data from June 2025.

NS&I shared a list of unclaimed Premium Bonds prizes, organised by their value, in April 2025.

£250 is a historical prize value no longer available to new winners. Data from April 2025

New data obtained by OLBG.com found that there are certain areas of the UK that are more likely to be home to Premium Bonds winners than others.

Their analysis showed that savers in London and the Home Counties are far more likely to win from their Premium Bonds holdings than those in other areas of the country.

The reason for this will be a mix of luck and statistics as the more money you hold in Premium Bonds, the more likely you are to be randomly selected.

If you live in one of these Premium Bonds hotspots, then it might be a good idea to check if you have any unclaimed winnings.

Data is only available from 1957 onwards, when Premium Bonds were first introduced. Data is accurate as of December 2024

There are certain areas of the UK that are more likely to be home to Premium Bonds winners than others, according to analysis by OLBG.com.

They found savers in London and the Home Counties are far more likely to win from their Premium Bonds holdings than those in other areas of the country.

The reason for this will be a mix of luck and statistics as the more money you hold in Premium Bonds, the more likely you are to be randomly selected.

If you live in one of these Premium Bonds hotspots, then it might be a good idea to check if you have any unclaimed winnings.

How to check for unclaimed Premium Bonds

1. NS&I’s Prize Checker website and app
The quickest, easiest option for tracking down potential Premium Bonds winnings is to use the prize checker on the NS&I website or download the official prize checker app (available for Android and iOS). If checking via the website, you will need your Premium Bonds holder number. If using the app, you will need your NS&I number, which is 11 digits.

Using either of these methods will show you your winnings from the last six draws and highlight any unclaimed prizes if you have them.

2. Call NS&I
If you prefer to pick up the phone, you can call NS&I for free on 08085 007 007. But, they will only have you on record if you are registered for phone or online banking.

3. Write to NS&I
You can also write to NS&I to check for any unclaimed prizes. If you choose this method, you should include the following details in your letter:

• Current name
• Current address
• Premium Bonds holder number
• All previous addresses where you might have registered bonds
• Your signature

You can send your letter to: NS&I, Sunderland SR43 2SB. Any prizes you claim will be sent to your home address.

When asked what the best way to find unclaimed Premium Bonds is, a spokesperson for NS&I told MoneyWeek: “The quickest way is to download our prize checker app or use the Premium Bonds prize checker at nsandi.com prize checker.”

They added: “If you think you have some Premium Bonds but you're not totally sure, our Tracing Service can help you check for any lost accounts with NS&I.”