What is the purpose of the AD01 form?

The AD01 form is used to officially notify Companies House of a change to a company's registered office address.

Can I submit the AD01 form electronically?

Yes. After completing the fillable PDF, you can submit the signed document electronically through Companies House WebFiling or by uploading it via their online portal.

Who is allowed to sign the AD01 form?

Only an authorized director, company secretary, or a person with a valid power of attorney may sign the AD01 form.

Do I need any special software to fill the AD01 PDF?

No. With Formize, you can fill, sign, and download the form directly in any modern web browser—no PDF editor required.

Is the electronic signature legally accepted?

Yes. An e‑signature created with Formize complies with UK e‑signature regulations and is accepted by Companies House.

Can I save a draft of the AD01 form and finish later?

You can download a partially completed PDF at any time, keep it on your device, and reopen it later with any PDF viewer that supports form fields.

What format should the address be entered in?

Enter the full address in the order: building name/number, street, post town, county (if applicable), and postcode, using capital letters.

Will the Formize service store my data?

All data remains in your browser during the session. Formize does not store or share your information unless you explicitly upload the file.

AD01 Fillable PDF – Complete & Sign Online

Fill out this form

The AD01 form is the official Companies House document used to change a company’s registered office address in the United Kingdom. Instead of printing, scanning, or using cumbersome desktop software, you can fill, sign, and save the form directly in your browser with the Formize PDF Filler.

Our online fillable AD01 PDF is fully compliant with Companies House requirements, supports electronic signatures, and automatically validates required fields. This saves you time, reduces errors, and eliminates the need for paper copies.

Below you’ll find a quick guide on how to complete the AD01 form, key sections to watch, and answers to the most common questions.

Instant loading: Click the "Fill out this form" button and the Formize PDF Filler loads in seconds.
Secure editing: All data stays in your browser; nothing is stored on our servers unless you choose to download.
e‑signature ready: Add a finger‑drawn or typed signature that meets Companies House standards.
One‑click download: Save the completed AD01 PDF to your device or print it for mailing.

Ready to get started? Click the button below and begin filling the AD01 form instantly.

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FAQ

What is the purpose of the AD01 form?
The AD01 form is used to officially notify Companies House of a change to a company's registered office address.
Can I submit the AD01 form electronically?
Yes. After completing the fillable PDF, you can submit the signed document electronically through Companies House WebFiling or by uploading it via their online portal.
Who is allowed to sign the AD01 form?
Only an authorized director, company secretary, or a person with a valid power of attorney may sign the AD01 form.
Do I need any special software to fill the AD01 PDF?
No. With Formize, you can fill, sign, and download the form directly in any modern web browser—no PDF editor required.
Is the electronic signature legally accepted?
Yes. An e‑signature created with Formize complies with UK e‑signature regulations and is accepted by Companies House.
Can I save a draft of the AD01 form and finish later?
You can download a partially completed PDF at any time, keep it on your device, and reopen it later with any PDF viewer that supports form fields.
What format should the address be entered in?
Enter the full address in the order: building name/number, street, post town, county (if applicable), and postcode, using capital letters.
Will the Formize service store my data?
All data remains in your browser during the session. Formize does not store or share your information unless you explicitly upload the file.

HOW TO

How to fill out AD01 PDF for free, online in 5 easy steps:

1
Open the Fillable Form
Click the "Fill out this form" button on the page. The Formize PDF Filler app will launch in a new tab.
2
Wait for the Loader
The app loads the AD01 PDF automatically. This usually takes only a few seconds.
3
Enter Company Details
Fill in the company number, name, and the new registered office address in the highlighted fields.
4
Add Your Electronic Signature
Use the signature tool to draw or type your signature. Ensure the signatory is an authorized director or secretary.
5
Save or Download
When all fields are complete, click "Save" to download the finished AD01 PDF or print it for mailing to Companies House.

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AD01 PDF template

With the traditional set of features for viewing and filling out a PDF document, combined with the benefits of a web application and responsive layout, you can complete AD01 PDF in minutes.

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