Guidance

Changing the sign in details for your GOV.UK One Login

How to change the password, phone number or email address you use to sign in to your GOV.UK One Login.

• From: Government Digital Service
• Published: 26 October 2023
• Last updated: 3 July 2025 — See all updates

Change or reset your password

Change your password

You can change your password in your GOV.UK One Login. To do this:

1. Sign in to your GOV.UK One Login.
2. Go to Security.
3. Under Your sign in details, find the row for Password and select Change password.
4. Enter your current password and select Continue.
5. Enter a new password and select Continue.

Reset your password

If you’ve forgotten your password, you can reset it. To do this:

1. Go to sign in to your GOV.UK One Login.
2. Select Sign in.
3. Enter your email address.
4. On the Enter password screen, select the link that says I’ve forgotten my password.
5. Check your email for a security code.
6. Enter the security code and select Continue.
7. Enter another security code - you’ll get this by text message or from your authenticator app.
8. Enter a new password and select Continue.

Change your phone number

You can change the phone number you use to get security codes to sign in. To do this:

1. Sign in to your GOV.UK One Login.
2. Go to Security.
3. Find How you get security codes to sign in.
4. Select Change phone number.

If you’ve added a phone number as a back-up method, you can remove it and add a new phone number.

If you’ve lost access to your phone

If you’ve lost access to your phone number or you’ve changed it, you can use your back-up method (another phone number or authenticator app) if you’ve added one.

If you do not have a back-up method, check if you can change how you get security codes:

1. Sign in to your GOV.UK One Login.
2. Enter your password.
3. When asked to enter the security code, select Problems with the code.
4. Select Check if you can change how you get security codes.

You’ll only be able to change how you get security codes if you’ve already proved your identity with GOV.UK One Login.

If you’re told you cannot change how you get security codes, contact GOV.UK One Login.

If you’re told you can change how you get security codes, you’ll need to prove your identity using the GOV.UK ID Check app. This is because we need to know it’s you and helps to keep your GOV.UK One Login safe.

We’ll ask some questions to make sure you can use the GOV.UK ID Check app. Then we’ll tell you how to download and use the app to prove your identity.

You can then choose how you want to get security codes. You can get codes by text message to your mobile phone number or from an authenticator app.

Changing how you get security codes will remove your previous default and back-up method, if you’ve set one up.

Get help using the GOV.UK ID Check app.

If you cannot use the app then contact GOV.UK One Login.

Change your email address

You can change your email address in your GOV.UK One Login. To do this:

1. Sign in to your GOV.UK One Login.
2. Go to Security.
3. Under Your sign in details, find the row for Email and select Change email address.
4. Enter your password and select Continue.
5. Enter a new email address and select Continue.
6. Check your email for a security code.
7. Enter the security code and select Continue.

Contact GOV.UK One Login if you need more help.

Published 26 October 2023

Last updated 3 July 2025 + show all updates

1. 3 July 2025

   Updated instructions for how to change your phone number to explain you can now use a back-up method to sign into your GOV.UK One Login.

2. 27 February 2025

   Updated instructions on changing how to get security codes if you've lost access to your phone.

3. 12 March 2024

   The instructions for changing your phone number if you have lost access to your phone or changed your number have been updated to include the rule that you can only do this if you are not also resetting your password.

4. 28 February 2024

   The steps for resetting your password have been updated.

5. 26 October 2023

   Added translation