About Check Premium Bonds
Check Premium Bonds is an independent site. It provides browser-based tools and plain-English guidance for UK Premium Bonds holders. It is not part of, affiliated with or endorsed by NS&I. The site cannot access an NS&I account, confirm prize entitlement or provide financial, legal, tax or probate advice.
What we do
- Help users compare bond numbers with a winning-number file they selected themselves.
- Explain official routes for holder’s numbers, old Bonds, unclaimed prizes and bereavement.
- Provide local calculations and a return tracker with visible limitations.
What we do not do
- We do not provide an NS&I account or submit an account-level query.
- We do not distribute NS&I winning-number files with the site.
- We do not provide personal financial, legal, tax or probate advice.
Data and sources
Product facts should come from dated official sources. User-selected ZIP files and bond numbers stay in the browser and are not uploaded by the checker.
Corrections and contact
Check Premium Bonds is operated independently. Contact [email protected]. Do not send a holder’s number, bond number or account document through any unofficial channel.
Method and limitations
Method and limitations: This page summarises the official routes and sources listed below. Requirements, rates and timescales can change. It is general information, not financial, legal, tax or probate advice.