How to Register a Company in UK: The Complete Step-by-Step Guide

Setting up a business doesn’t have to be complicated. To register a company in UK, you simply submit an application to Companies House via the official GOV.UK portal.

It takes under 24 hours, costs a standard £50 fee, and requires a unique name, a physical UK address, and at least one director.

Why Registering a Company is Important?

Registering a UK company provides immediate limited liability protection, protects personal assets from business debts, unlocks corporate tax efficiencies, increases commercial credibility with large clients, and allows you to legally raise outside capital or investment.

• Limited Liability Protection: A registered limited company is a distinct legal personality. This means the business owns its own debts. If the company faces financial trouble or legal action, your personal assets (like your home, car, or personal savings) are legally protected.

• Tax Efficiency: Registering a company opens up tax planning opportunities. Instead of paying personal income tax on all net profits, a company pays Corporation Tax on profits, and owners can pay themselves through a combination of a tax-efficient salary and dividends.

• Commercial Credibility: Many large corporations, government agencies, and international suppliers will only do business with registered corporate entities. It signals that your business is stable and compliant with UK statutory standards.

• Access to Capital & Investment: If you plan to raise outside investment, secure venture capital, or take out business loans, you must have a registered corporate structure. Investors require shares in a company in exchange for their funding.

What Is the Difference Between a Sole Trader and a Limited Company in the UK?

Choosing the correct business structure dictates your legal liability, tax obligations, and administrative workload.

The table below outlines the core operational distinctions between a sole trader and a private limited company.

Operational Feature	Sole Trader	Private Limited Company (Ltd)
Legal Status	You and the business are a single legal entity.	The company is a distinct legal personality.
Financial Liability	Unlimited personal liability for business debts.	Limited liability protected by shares or guarantees.
Tax Framework	Income Tax on net profits via Self Assessment.	Corporation Tax on profits; dividends for owners.
Public Transparency	High level of privacy; records are not public.	Public filing of directors, accounts, and PSCs.
Setup Cost	Entirely free via HMRC registration.	Statutory digital registration fee applies.

How to Choose Your Business Structure?

Choose a private limited company if you plan to scale, hire staff, or secure outside investment. Choose a sole trader structure if you are a freelancer or local service provider seeking minimal administrative overhead and low initial setup costs.

How to Register a Company in UK?

To register a company in the UK, choose a unique company name, secure a physical UK registered office address, select at least one director and shareholder, choose your five-digit SIC code, and submit the incorporation application online via GOV.UK.

1. Pre-Registration Criteria & Legal Requirements

Before launching your registration application, you must finalise the core details of your corporate structure:

• Company Name: Must be completely unique and cannot be similar to an existing name on the registrar. It must avoid restricted, offensive, or sensitive terms unless formal permission is granted.

• Registered Office Address: A physical address located in the same UK region where your company is registered (England, Wales, Scotland, or Northern Ireland). It cannot be a standard P.O. Box number. You can run a business from home, but using your home address means it will be published on the public online register.

• SIC Codes: A minimum of one five-digit Standard Industrial Classification (SIC) code that accurately describes your primary commercial activities to government agencies.

• Corporate Officers: You must appoint at least one natural director (minimum 16 years old) to manage operations and at least one shareholder (who can be the same person).

• Share Capital Statement: You must explicitly state the number of shares issued, their total value, and the specific voting rights attached to them. You must also identify all Persons with Significant Control (PSC) who hold more than 25% of the shares or voting rights.

• Articles of Association: The governing constitutional documents that outline how the company will be run. Most founders select standard model articles provided by the government during setup.

2. The Setup Pipeline

The quickest method is online filing via the official GOV.UK portal, which typically processes within 24 hours.

• Complete Identity Verification: Set up and verify your digital identity credentials using the official GOV.UK identity application interface. Non-resident directors complete this via a mandatory global identity verification app.
• Check Name Availability: Search the official Companies House register to confirm your desired business name is unique, legally compliant, and available for use.
• Assign Directors and Share Capital: Input personal details for all directors, allot the initial share capital to your shareholders, and formally declare all Persons with Significant Control (PSCs).
• Provide Verified Addresses: Enter your physical registered office address and separate official service addresses for each appointed director.
• Adopt Constitutional Documents: Select standard model articles of association or upload your customised corporate constitution documents that dictate voting and governance rules.
• Submit Fee and Application: Pay the statutory fee online using a valid payment card and submit the digital application package.

3. Application Costs & Processing Speeds

According to official schedules set by Companies House, the overall incorporation cost depends entirely on the application method and speed you choose.

Submission Method	Processing Speed	Statutory Cost
Standard Digital Filing	Within 24 hours	£50
Same-Day Digital Express	Same working day	£78
Standard Paper Filing (IN01)	Up to 10 working days	£71

Debunking Free Registration Claims

A common pattern is for commercial formation agencies to market services under the banner of a free corporate setup. In reality, the statutory government fee applies to every single incorporation.

These promotional packages bundle the registration with mandatory business bank account openings or ongoing monthly virtual address subscriptions to offset the initial fee.

Can a Foreigner Register a Company in UK as a Non-Resident?

Yes, non-UK residents can legally register a UK company entirely online without holding British citizenship or visiting the country, provided they complete remote identity verification and supply a physical UK corporate address.

Non-Resident Compliance Check

• Director Residency: No UK residency required.
• Corporate Address: MUST be a physical UK address.
• ID Verification: Mandatory global identity app.
• Business Banking: Requires international EMI (Electronic Money Institution).

How to Set Up Corporate Banking and Tax Registrations?

Once Companies House issues your official Certificate of Incorporation, your business must immediately activate its mandatory tax and financial accounts.

A limited company is a separate legal person, meaning its finances must remain completely distinct from your personal money.

Activating Your Tax Accounts

• Corporation Tax: You must register your company with HMRC for Corporation Tax within three months of starting any commercial activities. As of 2026, your business will face a split rate between 19% and 25%, depending entirely on your annual net profit thresholds.

• VAT Registration: If your projected or historic rolling 12-month commercial turnover crosses the statutory threshold, your company must register for VAT. Once registered, your business will be assigned a unique ID; you can learn how to find the VAT registration number of a company in the UK to verify your own credentials or check potential UK B2B suppliers.

• PAYE Scheme: If your business plans to pay salaries to employees or directors, you must set up a Pay As You Earn (PAYE) system before the first payment date.

Navigating Business Banking Setup

Opening a dedicated business bank account can be straightforward for UK residents using digital banking apps. However, for international entrepreneurs trying to register a company in the UK non-resident style, traditional high-street banks often require a physical UK presence.

Overseas founders typically solve this issue by using international Electronic Money Institutions (EMIs) that specialise in providing cross-border corporate banking details.

Final Compliance Checklist

To maintain your company’s active and compliant standing on the public register, you must meet regular statutory obligations. Every company must file an annual Confirmation Statement to confirm that the information held by the registrar is accurate.

Additionally, you must submit formal annual accounts to Companies House and file a Corporation Tax return with HMRC every year, even if your company is currently dormant or making a financial loss.

FAQ about Register a company in UK

How long does UK company registration take?

Digital applications submitted directly to Companies House are usually processed within 24 hours. Paper filings submitted by post can take up to two weeks to be fully reviewed and completed.

How much money do you need to open a business in the UK?

There is no legal minimum capital requirement. You can form a company with just a single share valued at £1, meaning your initial capital investment can be as low as the statutory filing fee.

Can I run a business from home in the UK?

Yes, you can run a business from home. However, if you use your home address as your registered office, it will be published on the public Companies House online register for anyone to see.

Do I need an accountant to register a company?

No, you do not need an accountant to register. The online portal is designed for founders to use directly, though consulting an accountant can help with complex share setups or tax planning.

What is a company SIC code?

An SIC code is a five-digit classification code that tells government agencies exactly what your business does. You must select at least one code during your application.

Can non-UK residents use a P.O. Box for registration?

No, Companies House rules state that your registered office must be a physical address where documents can be delivered. Standard P.O. Box addresses are regularly rejected.

What happens after my company is successfully registered?

You will receive a Certificate of Incorporation and a unique Tax Reference (UTR) from HMRC. You can then open your business bank account and legally begin trading.