How to Check a Business Registration Number UK

To check a business registration number (also called a company number) in the UK, you must use the official Companies House register. This lets you confirm the legal status, registered address, and filing history of the business. Below is why this check is necessary, detailed steps to perform it, a worked example with realistic GBP figures, common errors to avoid, and answers to frequently asked questions.

Why this comes up / what goes wrong

Small-business owners often need to verify a business registration number when dealing with suppliers, customers, or partners. This ensures the company is legitimate and active. Problems arise when owners accept numbers without checking, confuse company numbers with VAT numbers, or rely on unofficial websites. Failing to verify can lead to working with dissolved or unregistered companies, causing payment delays, legal issues, or loss of trust.

Step-by-step

1. Locate the business registration number: This is a unique 8-character code (numbers and letters) assigned by Companies House when the company is incorporated.

1. Visit the Companies House service: Go to https://www.gov.uk/get-information-about-a-company.

1. Enter the company number: Type the registration number exactly as provided into the search box.

1. Review the results: Check the company name, status (active, dissolved, etc.), and registered address.

1. Check filing history: Look for recent filings like confirmation statements or annual accounts to verify compliance.

1. Confirm company type: Identify whether it is a private limited company, public limited company, or another form.

1. Save or print the details: Keep a record for your files.

1. If no match is found: Double-check the number for errors or ask the business to confirm it.

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Example (fictional figures)

Suppose you run a recruitment consultancy in Bristol named "Bristol Recruit Ltd". You want to verify its company registration number 12345678 on 15/06/2024.

Step 1: Visit https://www.gov.uk/get-information-about-a-company.

Step 2: Enter "12345678" into the search box.

Step 3: The search returns "Bristol Recruit Ltd", status: Active, registered address: 10 Queen Street, Bristol.

Step 4: Check the filing history and see the last confirmation statement filed on 01/04/2024.

Step 5: Confirm it is a private limited company.

Step 6: You also want to check the annual turnover to assess business size. The latest filing shows turnover of £1,200,000 and expenses of £900,000.

Step 7: Calculate profit:

£1,200,000 - £900,000 = £300,000

Step 8: Confirm profit margin:

(£300,000 ÷ £1,200,000) × 100 = 25%

You have now verified the company is registered, active, and financially stable enough to work with.

Common mistakes

• Using incorrect numbers: Always double-check the registration number for typos before searching.
• Confusing VAT and company numbers: VAT numbers start with GB and are longer; company numbers are shorter and unique.
• Ignoring company status: Avoid engaging with dissolved or inactive companies.
• Not checking filing history: This reveals if the company is up to date with legal filings.
• Relying on third-party sites: Always use the official Companies House website to ensure accuracy.
• Failing to save records: Keep proof of your checks for future reference.

Frequently asked questions

How do I check a UK VAT registration number? You can verify a VAT number using the European Commission’s VIES tool online. Enter the VAT number to confirm it is valid and registered in the UK. This is separate from the company registration number.

What is the difference between a company registration number and a VAT number? A company registration number is issued by Companies House when a company is incorporated, legally identifying it. A VAT number is issued by HMRC for tax purposes when a business registers for VAT.

Can I check a business registration number for free? Yes, the official Companies House website provides free access to company details including registration numbers, status, and filing history.

What if the company registration number is not found? Double-check the number for accuracy. If still not found, the company may not be registered or could be dissolved. Contact the business for clarification.

Is it safe to rely on the Companies House register? Yes, it is the official UK government register for companies and is regularly updated.

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Key takeaways

• Use the official Companies House website to check UK business registration numbers.
• Confirm company status and filing history to ensure legitimacy.
• Don’t confuse VAT numbers with company registration numbers.
• Always double-check numbers to avoid errors.
• Use official sources only to avoid outdated information.
• Consider CRM tools with WhatsApp and SMS integration to manage leads efficiently.

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This article is general information, not tax or legal advice. Rules change; confirm the current position with HMRC or your accountant before acting.