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The company authentication code and Companies House webfiling

Profile picture of Mathew Aitken.

Senior Content Writer

Last Updated: | 2 min read

It’s easy to get into a tangle with the different logins and passwords needed to administer your limited company. 

In this blog post, we’re going to look at the company authentication code and the Companies House WebFiling system, and how they combine to help you look after your company. Let’s get started.

The company authentication code

The authentication code is a 6 digit code made up of letters and numbers. Its purpose is to allow the holder to carry out various administrative tasks for a company, such as:

  • Confirmation statement filing
  • Annual account filing
  • Director and secretary appointments, edits and resignations
  • Registered office changes
  • And more

The code is automatically generated by Companies House upon the company being formed. 

If your company was formed with us, you will find it by accessing your company overview page after logging in to your account.

Alternatively, if your company was formed directly at Companies House – your code will have been mailed to the registered office.

You should think of the code as an online version of a company officer’s signature – so treat it with care and only pass it on to trusted individuals. If the authentication code does fall into the wrong hands, we suggest changing it immediately and notifying Companies House

Companies House WebFiling

WebFiling is the online system that facilitates the above administrative tasks for your company. You can access this with a Companies House WebFiling login. Unlike the authentication code, you are not automatically given one of these. Instead, you will need to register for a WebFiling login.

Once you have registered, you can log in to the WebFiling system. Each time you log in – before you can make any changes to a company or complete a filing task – you will need to enter the company’s number and WebFiling authentication code.

The authentication code and WebFiling at a glance…

Companies House WebFiling is the website you access to complete administrative tasks for a limited company. You access this with your Companies House WebFiling login, that you need to register for.

You can attach a company to Companies House WebFiling by entering the company authentication code and company number, that are both provided as soon as your company is formed.

Our online company manager

At 1st Formations, we offer a free online company manager that, like WebFiling, allows users to carry out various company admin tasks, completely online. 

Unlike Companies House, you do not need to keep entering the company authentication code and company number whenever you wish to make an update. If your company was formed with us, you will never have to do this (unless the code changes) – if it wasn’t formed by us, you will have to do this once.

This is particularly useful to people who manage multiple limited companies, as all their companies are housed under one secure login, which simply requires the user to enter a username and password. Find out more about the free online company manager.

We hope you found this post helpful. Please leave a comment if you have any questions.

About The Author

Profile picture of Mathew Aitken.

Mathew is a Senior Content Writer at 1st Formations, responsible for creating articles and advice-driven content. He has 20+ years of industry experience and is an expert on the entire company formation process. Mathew believes in empowering business owners with clear and valuable information that simplifies the company formation process and enables founders to complete their real-world responsibilities.

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