How to Register a Business with Companies House and HMRC in the UK
Starting a business in the UK is an exciting venture, but it’s essential to ensure your business is properly registered. This guide walks you through the steps of registering your business with Companies House and HM Revenue & Customs (HMRC).
1. Determine Your Business Structure
Before registering, decide on the legal structure of your business. The most common options in the UK are:
- Sole Trader: You run your own business as an individual and keep the profits after tax.
- Limited Company: A separate legal entity from its owners, offering limited liability.
- Partnership: Two or more people share responsibility for the business.
Each structure has its own benefits and obligations, so choose the one that best suits your needs.
2. Registering a Limited Company with Companies House
If you’re setting up a limited company, you’ll need to register it with Companies House. Here’s how:
Step 1: Choose a Company Name
- The name must be unique and not too similar to existing company names.
- Avoid offensive words and check for any trademark conflicts.
- Use the Companies House name availability checker to confirm availability.
Step 2: Prepare the Required Documents
You’ll need:
- Memorandum of Association: A legal statement signed by all initial shareholders.
- Articles of Association: Rules for running the company agreed upon by the shareholders.
Step 3: Register Online
- Visit the Companies House website or use third-party software.
- Provide the following details:
- Company name and address
- Director(s) and shareholder(s) details
- SIC code (describes your company’s business activity)
- Pay the registration fee (for online applications).
You’ll receive a Certificate of Incorporation once the registration is complete.
3. Registering with HMRC
All businesses need to register with HMRC for tax purposes. The process varies depending on your business structure:
For Sole Traders:
- Go to the HMRC website.
- Register for Self Assessment and Class 2 National Insurance.
- You’ll receive a Unique Taxpayer Reference (UTR) and instructions on filing your tax return.
For Limited Companies:
- Once your company is registered with Companies House, it’s automatically registered for Corporation Tax.
- HMRC will send your company’s UTR within a few days.
- Activate your HMRC online account and file your Corporation Tax return annually.
For Partnerships:
- Register the partnership and all partners with HMRC.
- File a partnership tax return annually.
4. Additional Registrations and Obligations
Depending on your business activities, you may need to:
- Register for VAT if your turnover exceeds the threshold (£85,000 as of 2024).
- Set up PAYE if you plan to employ staff.
- Apply for licenses specific to your industry (e.g., alcohol sales, food business).
5. Key Tips for a Smooth Registration Process
- Be Accurate: Ensure all details are correct to avoid delays.
- Keep Records: Maintain proper documentation for future reference.
- Seek Advice: Consult a business advisor or accountant if needed.
Conclusion
Registering your business with Companies House and HMRC is a straightforward process if you follow the steps carefully. Once registered, you can focus on building and growing your business with confidence. If you’re unsure about any aspect of registration, professional guidance can make the process smoother and ensure compliance.

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