What the Code Means

Your personal code is a unique identifier that connects your verified identity to your company record in the Companies House system.

It confirms that:

  • Your ID has been successfully verified
  • You are authorised to act for your company
  • All filings under your name are legally valid

When You’ll Need Your Code

  • Registering a new company
    Enter your personal code to confirm your identity during company formation
  • Updating company information
    Use your code to approve director or shareholder changes
  • Working with an ACSP
    Share the code securely so your authorised agent can submit filings on your behalf
  • Accessing your Companies House account
    Log in or confirm identity when linking your account to company records

How to Use Your Code — Step by Step

Your Code Is Personal

Do not share your code publicly or through unsecured channels.

It’s your personal digital key — use it only on the official Companies House website or with a verified ACSP.

Authorising a Professional to Use Your Code

If you’re working with an Authorised Corporate Service Provider (ACSP), you can securely share your personal code with them to act on your behalf.

They’ll use it to link your verified identity to company filings, ensuring all submissions remain compliant and traceable.

Avoid These Common Mistakes

  • Sharing your code via email or social media
  • Entering it on unofficial websites
  • Using your code to verify someone else’s identity
  • Ignoring Companies House alerts about your verification

If in doubt — stop and verify the request with Companies House directly.

Store Your Code Securely

Your code doesn’t need to be used daily, but it’s important to store it safely.

Best practices include:

  • Using a password manager
  • Saving it only in encrypted storage
  • Avoiding screenshots or paper notes

I’ve hired an accountant to manage filings. Should I share my code?

Yes, but only if your accountant is an authorised ACSP registered with Companies House.

My company has multiple directors. Do we each need a code?

Yes, each director or PSC must complete their own identity verification and receive their own personal code.

Can I reuse my code for multiple companies?

Yes, once linked, your verified identity applies to all companies you’re connected with.

What if my code expires or is revoked?

You’ll need to contact Companies House to request a replacement.

Connect Your Verified Identity to Your Company

Make sure your Companies House personal code is linked and active.

It’s the simplest way to ensure full compliance and transparency under the new UK regulations.