A company registration number (CRN) is a unique identifier issued to businesses when they register with Companies House in the UK. Think of it as a fingerprint for your business - no two companies share the same CRN. In this guide, we'll deep dive into what a CRN is, where you can find it and when you'll need to use it.
What is a CRN?
A CRN is assigned to limited companies and limited liability partnerships (LLPs) when they're incorporated in the UK. It consists of a series of numbers or a combination of letters and numbers, depending on the type and country of incorporation. This unique code helps government bodies, financial institutions, and the public identify a specific business.
Key points about a CRN:
It is issued only by Companies House.
It remains the same throughout the life of the company, even if the business name changes.
It is essential for filing returns, submitting annual accounts, and other official documentation.
What do you need to get a company registration number?
To receive a CRN, you must incorporate your company with Companies House. Once your registration is complete, Companies House will issue your CRN automatically. Here’s what you’ll need:
A company name: Ensure the name is unique and adheres to UK naming rules.
Registered office address: A physical UK address where official correspondence can be sent.
Details of directors or members: For limited companies, details about directors and shareholders are required.
A memorandum and articles of association: Legal documents like the memorandum and articles of association that set out the structure and rules for running the company.
💡Editor's insight: "In case you didn't know, not every business needs a company registration number. You only get one post-inspiration. This means that you’ll only have a CRN if your business is registered as a limited company or a limited liability partnership (LLP)."
Company registration number format
The format of a CRN varies based on where and how your company is registered. This numbering system helps identify a company's region and business type. Here’s a breakdown:
England and Wales: CRNs typically consist of eight digits (e.g. 12345678).
Scotland: CRNs begin with 'SC' followed by six digits (e.g. SC123456).
Northern Ireland: Older companies may have CRNs beginning with 'R' or 'NI', but newer registrations follow a similar pattern to England and Wales.
Limited Liability Partnerships (LLPs): CRNs may start with 'OC' or 'SO' (for Scotland), followed by six digits.
How to find your company registration number
There are several free and easy ways to find your CRN:
Incorporation certificate: The CRN is printed on your company’s certificate of incorporation, received when you first register your business.
Companies House website: You can search for your business name in the public register. The CRN will be displayed along with other company details.
Official correspondence: Letters and reminders from Companies House usually include your CRN.
Business documents: Look at your annual confirmation statement or previous filings, where your CRN should be listed.
When will you need to use a CRN?
Your CRN plays a crucial role in various official and business-related processes. Common scenarios where you’ll need to use it include:
Filing annual accounts and returns: When submitting documents to Companies House, the CRN is used to track your company’s records.
Paying corporation tax: HMRC uses the CRN to link tax payments and filings to your company.
Opening a business bank account: Banks typically require your CRN for verification during account setup.
Entering into contracts: Some suppliers and clients may ask for your CRN to confirm your business is legitimate.
When to display your CRN
Displaying the CRN increases transparency and makes it easier for others to verify your business. It’s a legal requirement to display your CRN on key business materials, including:
Company letterheads
Invoices and receipts
Emails and other official correspondence
Company websites
💡Editor's insight: "According to the Companies Act (2006), you could actually be fined if you fail to display this information in the required places. So always try to stay compliant!"
FAQs
Is a business registration number the same as a company number?
No. In the UK, a business registration number is a broader term and can refer to various identifiers depending on the business structure. A CRN specifically refers to the unique number issued to companies and LLPs by Companies House. In contrast, sole traders and partnerships do not have CRNs.
Final thoughts
A company registration number (CRN) is a critical part of running a limited company or LLP in the UK. It uniquely identifies your business and is essential for staying compliant with Companies House and other regulatory bodies. Understanding its purpose, how to find it, and when to use it helps ensure smooth business operations and regulatory compliance.
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