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Guide

Companies House identity verification: send your ID to your accountant safely

Your accountant needs your ID for the Companies House check. Send it as a locked link that expires, not an email attachment.

Safer than an attachment

Send your ID in three steps

About two minutes.

  1. Step 1

    Make one PDF

    Photograph the ID pages and combine them with Photos to PDF.

  2. Step 2

    Lock the link

    Upload it above. Turn on a password, an end date a few days away and view-only.

  3. Step 3

    Send it

    Send the link, give the password by phone or text, and get an email when it is opened.

The settings to turn on

Password, expiry and view-only. Your accountant can read the pages but not download them.

FileSeen link settings for a PDF: link on, password on, expiry set to 1 November, downloads view-only
The link settings: password on, an end date, view-only.

Updated 30 October 2026

The rule in short

Since18 November 2025, with a 12-month transition
DirectorsGive their personal code with the company’s next confirmation statement
Two waysYourself with GOV.UK One Login, or through an ACSP, “for example, an accountant or solicitor”
NeverPost or email ID documents to Companies House

Sources: Identity verification, Verifying your identity, When you need to verify (GOV.UK), checked 30 Oct 2026.

After the check

Switch the link off

Once your accountant confirms, the passport is no longer reachable.

Keep your code private

Share your personal code only with people you trust.

Or do it yourself

GOV.UK One Login verifies you directly, free.

FAQ

Companies House ID questions

Do I have to send my passport to my accountant?

Only if they verify you as an ACSP. You can also verify yourself, free, with GOV.UK One Login.

Is it safe to email a passport scan?

An attachment stays in both mailboxes and every backup. A locked link can be switched off when the check is done.

Can I email my passport to Companies House?

No. GOV.UK says not to post or email identity documents to Companies House.

Does my accountant need an account to open it?

No. It opens in any browser after the password. To lock the file itself too, use Password-protect PDF.