Starting a business in the UK is an exciting milestone. Setting up a limited company (incorporation) creates a separate legal entity, offering limited liability and significant tax advantages. However, the process can seem daunting to first-time founders. This guide walks you through every step clearly.
What is a Limited Company?
A private limited company (Ltd) is an organisation set up to run a business. It is responsible in its own right for everything it does, and its finances are entirely separate from your personal finances. This means your personal assets are protected if the business encounters financial difficulties — a concept known as "limited liability".
In the UK, limited companies are registered at Companies House, the official registrar of companies in England and Wales, Scotland, and Northern Ireland.
Why Register as a Limited Company?
There are several compelling reasons to incorporate rather than operate as a sole trader:
- Tax Efficiency: Companies pay Corporation Tax on profits (currently 19–25%), which is often more tax-efficient than personal Income Tax rates for earnings above £50,000.
- Professional Credibility: Many clients and suppliers prefer working with limited companies, and some contracts require it.
- Limited Liability Protection: Your personal assets (home, savings) are protected from business debts.
- Easier Investment: It is simpler to bring in investors or sell shares in a limited company.
- Pension Contributions: Directors can make employer pension contributions as a company expense.
Requirements Before You Begin
Before you start the application, you must have the following ready:
- A unique company name that is not already registered with Companies House
- A registered office address in the UK (a physical address where official mail can be delivered)
- At least one director who is 16 or over
- At least one shareholder (can be the same person as the director)
- Details of your share structure (the "statement of capital")
- A Standard Industrial Classification (SIC) code identifying what your company does
- Personal details for all directors and shareholders (full name, date of birth, nationality)
The Registration Process Step-by-Step
Follow these steps to register your limited company:
Step 1: Check Your Company Name
Your proposed name cannot be identical or too similar to an existing registered company. You can search the Companies House register for free. The name also cannot contain certain "sensitive" words or expressions (such as "Bank", "British", "Royal", or "NHS") without permission from the relevant authority.
Your name must also end in "Limited" or "Ltd" (or Welsh equivalents if registered in Wales).
Step 2: Choose Your Registered Office Address
The registered office address will be publicly visible on the Companies House register. It must be a physical address in England, Wales, Scotland, or Northern Ireland (depending on where you register). Many founders choose a professional registered office address service rather than using their home address to maintain privacy.
Step 3: Appoint Directors and Shareholders
You need full personal details for every director and person of significant control (PSC). This includes full legal name, date of birth, residential address (kept private), service address (public), nationality, and occupation. A single person can be the sole director and sole shareholder.
Step 4: Prepare Your Memorandum and Articles of Association
The Memorandum of Association is a legal statement signed by all initial shareholders agreeing to form the company. The Articles of Association are the rules governing how the company is run. Companies House provides "model" articles that are suitable for most small businesses — you can adopt these without modification.
Step 5: Submit Your Application
You can apply directly to Companies House online (form IN01) for a £12 fee, which is typically processed within 24 hours. Alternatively, using a formation agent like Sterling Formations simplifies the process significantly. If you apply through Sterling Formations and open an eligible Tide business account, the £12 Companies House fee is covered for you.
Documents You Receive After Incorporation
Once Companies House approves your application, you will receive three key documents:
- Certificate of Incorporation: Official proof that your company exists. It shows your unique company registration number and the date of formation.
- Memorandum of Association: The legal statement by the founding shareholders.
- Articles of Association: The rules of your company.
What to Do After Incorporation
Registration is only the beginning. Within the first few weeks of incorporation you should:
- Open a dedicated business bank account in the company's name
- Register for Corporation Tax with HMRC within 3 months of starting to trade
- Register for PAYE if you plan to pay yourself or any employees a salary
- Consider VAT registration if your taxable turnover will exceed £90,000
- Set up your company's accounting records
- File a Confirmation Statement annually with Companies House
Frequently Asked Questions
How long does it take to register a limited company in the UK?
Online applications submitted directly to Companies House are typically approved within 24 hours on working days. Postal applications take 8–10 working days. Using a formation agent like Sterling Formations can have your company registered in as little as a few hours.
How much does it cost to register a limited company?
The Companies House registration fee is £12 for online applications. If you use Sterling Formations and open a Tide business account, this fee is covered. Additional costs may include a registered office address service if you choose not to use your home address.
Can I register a limited company from outside the UK?
Yes. There is no requirement for directors or shareholders to be UK residents. However, the registered office address must be in the UK.
Do I need an accountant to register a limited company?
No, you can register a company yourself or use a formation agent. However, it is strongly advisable to engage an accountant shortly after registration to help with HMRC registration, Corporation Tax, and ongoing compliance.
What is a SIC code and which one should I choose?
A Standard Industrial Classification (SIC) code identifies the nature of your business activities. Companies House provides a full list. You can select up to four SIC codes. If you are unsure, choose the code that most closely describes your primary activity.
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