This will also tell you if you’ve got any unclaimed prizes! Premium bond winnings never expire, so even you won back in the 1950s, the money is still good.
Include your name, address, and date of birth in the letter. If you bought the bonds at an old address or you went by a different name, include that info, too. For security reasons, the NS&I will not write back if you don’t sign your letter. Even if you printed the letter out, sign it at the bottom to ensure they respond. Provide as much detail as possible. If you know approximately when or where you bought the bonds, it can help narrow it down. Do not use any old Glasgow or Blackpool addresses you’ve come across. The NS&I shuttered those offices years ago.
Call +44 1772 329880 if you’re not in the UK at the moment or you no longer live there.
You can fill out and mail a tracing service application form to Sunderland SR43 2SB if you prefer. The tracing service usually takes about 4–6 weeks to send you a bond report if they find an account. You can also use My Lost Account to track down old premium bonds—and maybe even other lost funds!
You will automatically get an NS&I number when you first buy a Premium Bond. Your NS&I number is 11 digits long and has 11, 21, 31, or 41 as the first digits. If you ever forget your NS&I number, fill out this form and they’ll email it to you.
The holder’s number is always 9, 10, or 11 digits long. You will get your holder’s number when you purchase your first bond or when someone gives one to you. It’s printed on the front of the bond if you have the physical copy.
If you haven’t won yet and you really want to cash the bonds out whenever you do, the app is the best way to go—you’ll get a notification as soon as you win.
If you haven’t made an online account, click the “register” button to sign up for a new login with your NS&I number and your personal information.
NS&I stopped issuing paper checks in 2020, so you won’t get any kind of physical check in the mail if you were wondering.
