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Guidance

How to check someone's identity (1.0)

This guidance, also known as Good Practice Guide (GPG) 45, helps you decide how to check, or ask others to check, the identity of those you interact with.

Updates to this page

From:
Office for Digital Identities and Attributes, Department for Science, Innovation and Technology and Department for Digital, Culture, Media and Sport
Published:
3 March 2026
Last updated:
9 June 2026
Show all updates

  1. The publication has been updated to reflect that it is now in its final release, rather than in pre-release.

  2. Fixing and adding links, and rectifying formatting issues.

  3. First published.

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How to check someone's identity (1.0)

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Details

This guidance, also known as Good Practice Guide (GPG) 45, helps you decide how to check, or ask others to check, the identity of those you interact with, such as your customers or employees. It describes a methodology for creating digital identities.

This 1.0 publication of GPG 45 is valid from the date the 1.0 publication of the UK digital verification services trust framework (‘trust framework’) comes into force.

Services demonstrating compliance with GPG 45 as part of certification against the 1.0 trust framework will have to comply with this version of GPG 45.

This is the first version-controlled publication of GPG 45. The most recent non-numbered version of GPG 45 (titled ‘How to prove and verify someone’s identity’) can be found on GOV.UK and is, from the date of this publication, considered the 0.4 version of GPG 45.

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