On this page
  1. What is a Holder's Number?
  2. What does it look like?
  3. Holder's Number vs Bond Number vs NS&I Number
  4. Where to find it or recover it
  5. What if my details changed?
  6. Which number should I use with the Prize Checker?
  7. Sources
Quick answer

Your Holder’s Number links all your individual Premium Bonds. Find it on your Bond record or by signing in to your NS&I account.

What is a Holder's Number?

NS&I gives one to every Premium Bonds holder. It links all individual Premium Bonds held by that person.

What does it look like?

Accepted official formats

9 or 10 digits, or 8 digits followed by one letter. No real personal number is shown on this page.

Holder's Number vs Bond Number vs NS&I Number

Holder’s Number

Groups all Bonds for one holder; accepted by the website Prize Checker and App.

Bond Number

Identifies an individual £1 Bond; appears in official winning-number files.

NS&I Number

A customer login identifier for registered services; for prize checking, use it only in the App.

Where to find it or recover it

  1. Check your Bond record.
  2. Sign in to your NS&I account if registered.
  3. Request a replacement Bond record by phone or in writing.
  4. Use the Tracing Service if you are unsure what you hold.

What if my details changed?

Use NS&I’s official personal-details route. Do not submit names, addresses or account identifiers to this site.

Which number should I use with the Prize Checker?

Use a Holder’s Number on the NS&I website. An NS&I Number can be used for prize checking only in the App. Use Bond Numbers with official lists or the local checker.

Sources