Exchange of data between HMRC and GDS to support Identity Verification

Purpose
Data will be shared to support identity verification via GOV.UK One Login for New and Returning Users of HMRC Digital Services
Information sharing benefits
Enabling the migration of HMRC digital services into GOV.UK One Login; therefore reducing the cost of the authentication and identity verification of HMRC users; increasing success rates of identity verification; and improving confidence in the identity of users by ensuring that all identities meet GPG45 Medium Profile. There will be benefits for the wider government and public sector in that citizens will have increased confidence in government services. The user experience will also be improved and it will lead to increased digital adoption It will increase confidence in the identity being used to access HMRC digital services. Cost savings as a result of moving away from proving identity with Government Gateway to GOV.UK One Login; as the cost of running GOV.UK One Login is cheaper than Government Gateway.
Disclosed information
The data share will be a two-way process between HMRC and GDS. When a user tries to access an HMRC digital service HMRC will disclose the minimum data required to allow GDS to make an identity verification check or authentication check. The data returned by GDS is the minimum required to match the user to a record on HMRC systems and to allow them to pick up the user journey in HMRC.
Information sharing method
API
Contact
informationrightsunit@hmrc.gov.uk
Start date
2024-02-29
End date
2026-02-28
Review date
2026-02-28
Retention period
P7Y
Isa status
Active
Id
353
Notes
no change

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