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

The value of unclaimed Premium Bonds prizes has exceeded £100 million for the first time in history as almost 2.6 million Premium Bonds winners are yet to collect money they have won through NS&I’s popular savings product.

After July’s Premium Bonds prize draw, the total amount value of Premium Bonds which have been left unclaimed was a record £103 million, according to data from NS&I in July 2025.

The top unclaimed prize is £100,000 – with 11 winners yet to claim a windfall of this size.

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While July’s jackpot winners in Nottingham and Norwich have already been paid a visit by Agent Million, winners of smaller prizes 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.

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.

Luckily, unclaimed Premium Bonds do not expire, so even if you won a prize in the 1950s (as 13 people did), you can still contact NS&I and redeem the cash.

How many unclaimed Premium Bonds prizes are there?

There are at least 2,598,139 unclaimed Premium Bonds prizes worth £103,270,175 waiting to be claimed, according to NS&I data from July 2025.

Over 1.8 million winners are yet to claim their prizes of £25, the smallest payout you can get with Premium Bonds, but a significant number of higher prizes are still waiting to be claimed too.

There are 2,637 Premium Bonds prizes of £1,000 or more that have not been claimed, including 11 windfalls of £100,000, and 19 of £50,000.

NS&I shared a list of unclaimed Premium Bonds prizes up to December 2023, organised by their value, which can be found below.

Data is only available from 1957 onwards, when Premium Bonds were first introduced. Data is accurate as of July 2025

Which part of the UK is home to the most unclaimed Premium Bonds prizes?

Some parts of the UK have more prizes left unclaimed than others.

The area that has the most Premium Bonds prizes left waiting to be claimed is London, where 386,616 prizes worth £15,338,425 are sitting unclaimed.

Coming in at a close second is the South East, where there are 389,713 individual unclaimed Premium Bonds prizes, worth £14,996,600 in total.

These two regions are far ahead of the rest of the country in terms of the amount in unclaimed Premium Bonds, with the third-highest amount of unclaimed prizes being in the East of England (£8,668,675 across 230,099 prizes).

This is perhaps not surprising considering that average salaries in London and the South East are far higher than in the rest of the country, meaning people in these regions will likely, on average, have more money that they can put into savings vehicles.

A map showing the UK’s hotspots for unclaimed Premium Bonds prizes can be found below.

Speaking to MoneyWeek, a spokesperson for NS&I said: “Premium Bonds prize winners receive notifications of their winnings if they have registered their contact details.

“However, sometimes customers relocate or forget to update their details with NS&I. This can lead to unclaimed prizes, especially for those who opt to receive their prizes via cheque rather than bank transfer.”

They added that the amount of prizes that are unclaimed represents just 0.28% of the total £37 billion worth of prizes that have been won through Premium Bonds since 1956.

The spokesperson said: “Unclaimed prizes gradually accumulate every month and are primarily being won by Bond holders who have not registered their details or have moved without telling us and their cheques are being returned.

“We want to reunite people with their prizes, so this is a timely reminder that even for small holdings that may have been held for many years, it is worth registering your details with NS&I.”

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.”