Forming a limited company in the UK can seem like a big step initially. Even so, the process is a lot simpler once you know the order of steps. Simply put, you have to select an appropriate company structure; choose a compliant name; appoint directors; choose shareholders; prepare your key formation documents and register with Companies House. You will usually also be registered for Corporation Tax when you register. In 2026, the cost of online formation for a private company limited by shares is £100 and paper formation is £124.
To summarize, if you’ll be doing business in Britain and want to trade there, open a business bank account, establish trust with your customers or segregate personal from company funds, packaging as a UK limited company registration sometimes makes a lot of sense. A limited company also gives your business a distinct legal identity — which means that the company itself can enter into contracts, own assets and pay taxes on profits. But, as a legal entity it has obligations, filing deadlines and record-keeping requirements, which makes setting things up right from the start essential.
What Is a Limited Company in the UK?
A private limited company is a business structure that is legally separate from the people who run it. That separation is a major reason many founders choose it. Your liability is usually limited to the value of shares you agree to take, which can reduce personal financial exposure compared with trading as a sole trader.
This structure is commonly chosen by:
- start-ups
- consultants and service businesses
- eCommerce brands
- agencies
- family-run firms
- overseas entrepreneurs entering the UK market
Main Things You Need Before You Register
Companies House expects you to have a number of details prepared before submitting your application. These are the information such as company name, registered office address, more than one director, particulars of shareholders, SIC code and formation documents (memorandum of association), articles of association. You will also register your people with significant control (PSC) at the time of registration. Get details on Company Registration Service.
Table: Key Requirements for UK Company Formation
|
Requirement |
What it means |
Why it matters |
|
Company name |
Your legal business name |
Must follow UK naming rules |
|
Registered office address |
Official company address in the UK |
Used for formal government correspondence |
|
Director |
Person legally responsible for running the company |
Every company needs at least one |
|
Shareholders |
Owners of the company |
Needed for companies limited by shares |
|
SIC code |
Code showing your business activity |
Required during registration |
|
Memorandum of association |
Legal statement to form the company |
Mandatory at incorporation |
|
Articles of association |
Rules for how the company runs |
Mandatory for governance |
|
PSC details |
Individuals who own or control the business |
Required for transparency |
Step 1: Choose the Right Company Name
Your UK company name must be unique enough and must not be offensive or misleading. Also, some words are considered “sensitive” and may require extra approval. A smart business owner checks name availability before filing, because a rejected name can slow the whole setup process. Companies House also ties the registration step to your official address and SIC code selection.
When choosing a name, keep it:
- easy to remember
- relevant to your services
- professional for banking and client trust
- available for domain and branding use
Step 2: Appoint Directors and Decide Who Owns the Company
Every limited company must have at least one director. You also need to decide who the shareholders are. In a small company, one person can be both the sole director and sole shareholder, which is very common. Shareholders own the company, while directors manage it.
At this point, you should also identify any PSC. In many standard cases, a person who owns more than 25% of shares or voting rights counts as a person with significant control. Companies House requires this information during registration. Looking for a Company Registration in UK?
Step 3: Prepare Your Formation Documents
To register a company, you need to prepare:
- a memorandum of association
- articles of association
- a statement of capital for companies limited by shares
The memorandum confirms that the initial subscribers want to form the company and become members. The articles set out the rules for running the company. Many founders use the official model articles, because they are the standard default articles accepted under the Companies Act 2006.
This part matters more than people think. If ownership, voting rights, or decision-making are likely to get complex later, custom articles may be better than the default version.
Step 4: Pick the Correct SIC Code
A SIC code tells Companies House what your company actually does. You must choose at least one suitable code when registering, and in many cases you can use up to four if your company carries out different activities. Even dormant or non-trading companies still need an appropriate SIC code.
For example:
|
Business Type |
Example SIC Area |
|
Online retail |
eCommerce / retail activity |
|
Marketing agency |
Advertising / digital services |
|
IT consultancy |
Computer consultancy / software |
|
Import-export business |
Wholesale or trade-related activity |
Step 5: Register with Companies House
Once your details are ready, you can submit the registration to Companies House. The official GOV.UK service says you can usually set up Corporation Tax at the same time unless the company is dormant. For a private company limited by shares, the current fee is £100 online and £124 by paper form. Same-day incorporation is listed at £156 in the Companies House fees schedule. Get details on Company Registration in London.
Table: Companies House Formation Costs (2026)
|
Service |
Fee |
|
Online incorporation |
£100 |
|
Paper incorporation |
£124 |
|
Same-day incorporation |
£156 |
These fees changed from 1 February 2026, so using current figures in your planning is important.
Step 6: Understand Identity Verification Rules
Incoming: A new area that all founders should pay attention to is identity verification. It became a legal requirement to verify identity from 18 November 2025, but there was a transitional period of 12 months with which directors and people with significant control to verify by their due dates (according to GOV.UK). You might also need a Companies House personal code after you have verified your identity.
That means early-stage founders need to consider verification on their company-wide setup checklist from the very beginning, not just as an afterthought.
Step 7: Register for Tax and Keep Records
A limited company will also need to pay Corporation Tax on profits whilst being required to register for VAT if it surpasses the threshold, or if voluntary registration is a benefit to the business. You can set up Corporation Tax later if you missed out during incorporation, using your company registration number, UTR, trading start date and first accounts date to add Corporation Tax services via your business tax account.
You also need to keep company and accounting records and stay on top of annual filings. All companies, including dormant companies, must file annual accounts with Companies House. You may also need to file a confirmation statement and a Company Tax Return. Looking for a Company Registration in UAE?
Common Mistakes to Avoid When Setting Up a Limited Company
A lot of founders rush this stage, and honestly, that’s where problems begin. Try not to make these mistakes:
- choosing the wrong SIC code
- using a weak or non-compliant company name
- forgetting PSC disclosure
- not understanding director duties
- delaying tax setup
- mixing personal and company money
- missing filing deadlines after incorporation
A company can look perfect on day one and still fall into trouble later if compliance is ignored.
Why Many Entrepreneurs Choose a UK Limited Company
There are several reasons this structure remains popular:
- professional image with clients and suppliers
- limited liability protection
- easier separation of personal and business finances
- better scalability for investors or partners
- clearer ownership through shares
- recognised legal framework in the UK
Therefore, if you are looking for a more sustainable structure with growth and credibility in mind, setting up a company limited by shares in the UK is often an appropriate step.
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Your Journey to a UK Limited Company Starts Here
If you are asking how to set up a limited company in the UK, just make it neat, follow the rules and don’t forget about small things. Know the name, have the right people, file the right papers, be in your appropriate SIC code and register with Companies House then continue to ensure you are maintaining tax and filing requirements after incorporation. When done right, your business sets up with a strong legal and operational foundation that simplifies everything going forward.
FAQs “Set Up a Limited Company in the UK”
The fee for this at Companies House is currently £100 if you apply online or £124 if you do it by paper application.
Yes. One person can usually be sole director and sole shareholder.
All UK Companies must have a registered office address for HMRC correspondence.
You need to enter it when registering, this is the code for your business activity.
Usually the memorandum of association, articles of association and statement of capital (if limited by shares).
Often it can be done during company registration, but if not, you can add it later through your business tax account.
A PSC is a Person with Significant Control and usually means someone who owns or controls more than 25% of shares or voting rights.
Yes — but on 18 November 2025, verifying user identity became legally required with a sunset period.
Yes. Most new businesses adopt the model articles as standard default articles.
Yes. Dormant companies are still required to file with Companies House.
Not always. It becomes required if the business meets the VAT rules, though voluntary registration may be possible.
After incorporation, you need to keep records, file accounts, maintain PSC and company details, and handle tax compliance properly.
