GOV.UK One Login
From 10
November 2025, customers signing into HMRC may have noticed a new sign-in
screen. This new screen introduces an additional option: GOV.UK One Login,
alongside the existing Government Gateway option.
Users should
continue using their Government Gateway sign-in details as usual. This change
is part of HMRC’s preparation for moving to GOV.UK One Login, a secure, modern
sign-in system that will eventually replace Government Gateway.
Users on the
HMRC sign-in screen will not be able to create a GOV.UK One Login or sign into
HMRC with a GOV.UK One Login at this point, instead, they will be redirected to
Government Gateway.
Some users may
already have a GOV.UK One Login credential from another Government Department,
however, they cannot use their GOV.UK One Login to sign into HMRC services yet.
They must continue to use their Government Gateway details to sign-in.
When
does this impact users of 3rd party software?
Starting from
19 November 2025, users signing in through 3rd party software will also see the
new sign-in screen, this will include the GOV.UK One Login option.
For now, all
existing users should continue to sign-in via Government Gateway and enter
their details as normal (10-12-character user ID and password). New users
should select “I am new” on the sign-in screen to create a new Government
Gateway account.
Customers using our software applications will also be presented with the new sign-in screen during the OAuth journey. They should continue to sign in with their Government Gateway User ID and password to generate a token for use within our software. There are no IT changes required to the OAuth flow.
You can find more information on GOV.UK One Login and the sign-in options here: https://www.gov.uk/guidance/accessing-hmrc-online-services-using-govuk-one-login
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