How to Find a Company’s Tax ID (Company Registration Number) in the UK

Learn how to easily find a UK company's tax ID or Company Registration Number (CRN) using the free Companies House search.

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To find a company's tax ID in the UK, commonly referred to as the 'Company Registration Number' (CRN), you can search the Companies House website for free. The CRN is a unique combination of 8 numbers or 2 letters followed by 6 numbers. You simply need to enter the company's name into the search bar, and their public record should list the CRN along with other details. This number is essential for tax filing and identifying the company in official documents.

FAQs & Answers

  1. What is a Company Registration Number (CRN) in the UK? A Company Registration Number (CRN) is a unique identifier assigned to companies registered in the UK. It consists of 8 digits or 2 letters followed by 6 digits and is used for official identification and tax purposes.
  2. How can I find a UK company’s tax ID for free? You can find a UK company’s tax ID, known as the Company Registration Number, by searching the company’s name on the Companies House website, which provides free access to public company records.
  3. Why do I need a company’s tax ID in the UK? The company’s tax ID or CRN is essential for tax filing, legal documentation, and identifying the company in government and financial records.

Watch More

For more insights on managing UK business compliance and official records, explore our guides on VAT registration, understanding company filing requirements, and how to verify company directors on the Companies House database.

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