Submitting documents to Companies House is an essential task for any business. Whether you’re filing annual accounts or updating director information, the process of uploading documents can help ensure compliance and avoid penalties. In this guide, we explain the types of documents you can upload, the information required, and step-by-step instructions for a smooth submission.
What types of documents can you upload to Companies House?
You can upload various documents to Companies House. Some of the most common include documents related to your company’s registration, finances, and structural changes. Below are popular examples:
Annual accounts: Financial reports that show your business’s performance and are due each year.
Confirmation statements: A yearly snapshot of key company details, including directors and shareholders.
Incorporation documents: Forms submitted when registering your business for the first time like a memorandum and articles of association.
Changes in registered office address: Updates to your official company location.
Director or secretary appointments and removals: Notification of changes in key personnel.
Special or ordinary resolutions: Decisions made by shareholders that need to be formally documented.
💡Editor's tip: "Here's a common mistake I see a lot. Always ensure that you review Companies House guidelines to confirm the correct format for each document type."
What information do I need before adding a document?
Before uploading, gather the following information. It'll help speed things up:
Authentication code: This unique code is provided by Companies House to access the online WebFiling system.
Company registration number (CRN): Your CRN is a unique reference assigned when your business is incorporated.
Correct document format: Most submissions must be uploaded in PDF format.
Document reference number (if applicable): Certain filings require a reference number to track or associate with previous submissions.
Step-by-step: How to upload a document to Companies House
Uploading documents online is the quickest and most efficient way to submit filings to Companies House. Follow these steps:
1. Log in to the Companies House WebFiling service
Sign in to Companies House to access their WebFiling service. You'll need your email address, password and authentication code as standard.
2. Enter your registration number
You'll need to enter your eight-digit company registration number. If you're not sure what this is, you can usually find it on your certificate of incorporation or any official correspondence from Companies House.
3. Confirm your company
If the details are correct, you'll see a preview of your company. This will include your company's name, number, incorporation date and registered address. If everything looks good,, just tap 'Confirm'
4. Choose your document category
You'll have a dropdown of different document types to choose from. These will be general areas like share capital, registrar's power and more.
5. Choose your document type
Next, you'll be able to select the specific document you're looking to upload. For example, share capital documents like SH01, SH02 and so on.
6. Upload the document type
It's time to upload. Just like other portals, you simply select 'browse', find your document and hit 'upload'. Keep in mind documents need to be in a PDF format and must be smaller than 4MB.
7. Confirm and submit
Finally, check the document has been uploaded correctly and hit 'Submit document'. You should almost immediately receive an email to confirm that the document has been successfully uploaded and that it will be checked by Companies House.
8. Examiner checks
Within around a week or so, you should get an email confirming if your document has been accepted or rejected. If the document is rejected, you'll get further instructions on what to do next.
Best practices for easy uploading
Use the correct file format: Most documents should be in a PDF format. Avoid unnecessary formatting changes that could corrupt the file.
Double-check your authentication code: If your code is lost, request a replacement to avoid delays.
Maintain consistent file naming: Use clear, descriptive names to keep records organised (e.g. AnnualAccounts2025).
Check for confirmation: Always save or print the submission receipt in case you need proof of filing.
FAQs
How do I find the Companies House online portal?
You can access the WebFiling service through the official UK government website at www.gov.uk/companieshouse. This portal allows you to file most company-related documents quickly and securely.
How do I post a document to Companies House?
If you prefer or need to send a document by post, address it to: Companies House, Crown Way, Cardiff, CF14 3UZ. Make sure to use tracked delivery for important filings.
How long does it take for documents to appear on Companies House?
Documents uploaded online are usually processed within 24 hours, though this may vary during peak periods. Postal submissions typically take longer, often between 5-10 working days.
How many documents can I upload at once?
WebFiling allows one document per upload, so you must submit separate forms individually. Some specialised software services may support batch uploads.
Final thoughts
Understanding how to upload documents to Companies House efficiently ensures your business remains compliant and up to date. By following the steps outlined and using best practices, you can avoid delays and errors that might impact your filings. If you encounter issues, get in touch with Companies House support or seek professional advice to keep your submissions on track.
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