Companies House WebFiling to Switch to GOV.UK One Login

From 13 October 2025, Companies House will require all businesses to use GOV.UK One Login to access WebFiling. This change is part of a wider government move to introduce a single, more secure login system across all online services.

What’s Changing?

From 13 October 2025, you’ll need to connect your WebFiling account to GOV.UK One Login before you can continue filing.

If you share your WebFiling account with others, only one person will be able to connect each WebFiling account to their GOV.UK Login. Anyone who shares access will need to create their own GOV.UK One Login, using a different email address.

This is part of a wider move as the government intends for GOV.UK One Login to be increasingly used for accessing online services.

What You Can Do to Get Ready

To avoid last-minute issues, here are a few simple steps to take before October 2025:

• Check your email addresses – make sure the email you use for WebFiling is current and accessible. If you also use “Find and update company information,” use the same email address for both.  
• If you don’t already have one, you could set up a GOV.UK One Login in advance, using the same email as your Companies House accounts. This will make connecting smoother.  
• Check that you have the authentication code handy for each company you file for. You may need to enter it when you connect your WebFiling account to GOV.UK One Login.  
• Review who has access – if your team shares a WebFiling login, each person will need their own account going forward. Start planning how to manage this.  
• Think about identity verification – while not compulsory until November 2025, directors and People with Significant Control (PSCs) can verify their identity early using GOV.UK One Login.

If you try to sign into WebFiling after 13 October 2025, you’ll be redirected to connect your account with GOV.UK One Login.

See: https://www.gov.uk/government/news/access-to-companies-house-webfiling-accounts-to-move-to-govuk-one-login