Introduction
A company may already have customers, a strong product and a clear reason to enter the UK market. But setting up a business in another country brings its own decisions. Should you register a UK company or work through your existing overseas business? How much will the move cost? What tax rules will apply once you start selling?
These questions need attention before you begin trading. Your choice of business structure can affect how you sign contracts, employ people and manage money across borders. Registration fees are only one part of the cost, with staffing, professional advice and ongoing compliance adding to the budget.
If the UK is your next market, here are seven areas to consider before making the move.
1. Which Structure is Right for Your UK Business?
A company planning to hire locally, sign UK customer contracts and open an office may need a different structure from one that only needs a UK base for its existing international operations.
Common options include setting up a UK company, registering a UK branch of an overseas company or entering a joint venture with a local partner.
A UK company is a separate legal entity. A UK branch, on the other hand, is part of the overseas company, which is still responsible for its obligations. A joint venture allows two or more businesses to work together, with each party's responsibilities set out in their agreement and the structure they choose.
Choose a structure based on how the UK operation will be funded, managed and run, not just on the registration process. Consider who will run the UK business, how it will be funded, how profits will be transferred and which responsibilities will remain with the overseas company. Compare the legal and financial implications of each possibility with your planned UK operations.
Official resource: Set up and register your business in the UK
2. What You Need to Register Your Business in the UK
The registration process depends on how you are forming a UK company or registering an overseas company's UK establishment.
For a UK private limited company, you will need details such as the company name, registered office address, directors, shareholders and people with significant control. Relevant individuals must also meet Companies House identity verification requirements.
As of October 2026, online incorporation of a UK company costs £100, while paper incorporation costs £124. Registering a UK establishment of an overseas company also costs £124. Check the Companies House fee schedule before applying, as fees can change.
An overseas company generally needs to register with Companies House if it opens a place of business in the UK or usually carries out business from a UK location. If it has no UK base, it may not need to register with Companies House, although UK tax obligations can still apply. Where registration is required, the company must give the relevant documents within one month of opening its UK establishment.
Documents from the overseas business may include certified copies of its constitutional documents and accounts, along with certified English translations where needed. Identity verification requirements also need to be checked before applying.
Review the requirements for your chosen structure in advance. Missing documents or incomplete details can delay the registration process.
Official resources
3. How Much Will It Cost to Set Up in the UK?
The registration fee is only one part of your UK business setup budget. You also need to estimate what it will cost to run the operation during its first year.
Your expenses will depend on how you enter the market. You may need to pay for legal and accounting advice, office space, salaries, insurance, software, marketing and customer support. If you plan to import products, factor in shipping, customs procedures, storage and applicable import charges.
For example, a company selling products through a UK distributor will need to account for stock, shipping and distribution costs. A software business setting up a local sales team will have recruitment, salary and related employment expenses to consider.
Currency movements can also affect your budget if the UK operation receives funding from an overseas company. A change in the exchange rate may alter how much money is available to cover local expenses.
Prepare a first-year budget that covers registration, operating costs and the period before revenue is sufficient to meet those expenses. This will give you a clearer picture of the funding required to establish the business.
Also Read: How to Choose the Right Country for International Business Expansion?
4. Corporation Tax and VAT for Overseas Businesses
Tax affects how you price your products or services and how much profit your business retains. Check the UK tax rules before you start trading.
UK companies generally pay Corporation Tax on their taxable profits. For the financial year starting 1 April 2026, the small profits rate is 19% for companies with profits of £50,000 or less, while the main rate is 25% for profits above £250,000. Companies with profits between these thresholds may qualify for Marginal Relief, which reduces the effective rate. The thresholds can be lower where a company has associated companies or a shorter accounting period.
An overseas company operating through a UK establishment may also have UK Corporation Tax obligations, depending on its activities and circumstances. The tax position should be checked against the structure of the business and the work it carries out in the UK.
Value Added Tax (VAT) is another requirement to consider. A business generally needs to register when its taxable turnover exceeds £90,000 over the previous 12 months, or when it expects to exceed that amount in the next 30 days.
Different rules apply to businesses based outside the UK. An overseas business that supplies goods or services to the UK may need to register for VAT regardless of its turnover, subject to the applicable rules and exceptions. Check the position before setting prices or accepting orders.
If your UK business will buy from or sell to the overseas company, seek advice on cross-border tax and transfer pricing. You should also establish when tax returns and payments are due, so these obligations are included in your financial planning.
Official resources
5. Licences, Product Rules and Industry Requirements
Registering a business does not automatically give it permission to sell every product or provide every service in the UK. Some activities require a licence, regulatory approval or additional registration before trading can begin.
A business importing physical products may need to meet UK product safety, labelling and customs requirements. A company handling customer information needs to understand its responsibilities under UK data protection law. Other sectors may have specific rules covering advertising, professional qualifications, insurance or operating permissions.
Requirements can differ from one product or service to another. A product that meets the rules in its home market may still need to meet separate UK requirements before it can be sold here.
Check the relevant regulator's guidance for each product or activity before committing to contracts or setting a launch date. If the requirements are unclear, seek advice from a professional familiar with your industry and the UK regulatory system.
If you need help choosing and setting up a UK legal entity, read Cerity Global's guide to UK legal entity setup.
6. How Will You Sell to and Support UK Customers?
Registering your business is one part of entering the UK market. You also need to decide how customers will buy from you and who will handle their needs after a sale.
Will you sell directly, work through a distributor or enter an arrangement with a local partner? Each option comes with different responsibilities for sales, order processing, payments, delivery and customer support.
Selling directly may require your own sales and support teams. A distributor may handle some customer-facing work, but you will need to agree how orders, delivery issues and complaints will be managed.
Consider how enquiries will be handled during UK working hours, what delivery times you can offer and who will manage post-sale support. If you plan to employ people locally, account for recruitment, payroll, employment obligations and employer insurance. If employees will move from another country, check the relevant immigration and work permission requirements before planning.
Banking also needs attention. Financial providers may ask for company documents, identity checks and details about the business and its ownership. Registering a UK company does not guarantee that a business bank account will be available immediately.
Use these decisions to estimate your initial staffing needs. Decide which responsibilities require a UK team, and which can be handled by your existing team overseas.
Also Read: How to Expand Your Business Globally Without Compliance Risks?
7. Your Ongoing Filing and Reporting Obligations
Once your business starts operating, filing deadlines and record keeping become part of its regular workload. Missing a deadline can lead to penalties or other complications, so responsibilities should be assigned before trading begins.
A UK limited company generally needs to file annual accounts and a confirmation statement with Companies House. Corporation Tax returns and payments, VAT returns and payroll submissions may also apply, depending on the company's activities and registrations.
Companies House requires a confirmation statement at least once every 12 months, even if the company's details have not changed. As of October 2026, the digital filing fee is £50. Changes to company details must also be reported within the applicable time limits.
Overseas companies with a registered UK establishment have their own filing and disclosure obligations. These can include submitting accounts and reporting changes to company or establishment details. The requirements differ from those for a UK incorporated company, so check the guidance for your chosen structure.
Assign responsibility for company records, tax filings and Companies House submissions. An accountant or other adviser may handle some of this work, but the business should still know which deadlines apply and who is checking them.
Review these arrangements as the business grows. Hiring employees, changing ownership, adding new activities or entering transactions with the overseas company may affect your reporting and tax responsibilities.
For more information, read Cerity Global's guide to compliance challenges in international business expansion.
Official resources
- Running a limited company
- Overseas companies in the UK: registration, filing and disclosure obligations
Get Your UK Business Ready for the Next Step
Setting up a company in the UK means planning for tax, filing deadlines and record keeping from the start. Knowing which requirements apply to your business can help you prepare for the costs and responsibilities of operating in a new market.
Planning to set up a business in the UK? Contact Cerity Global for support with company registration, tax requirements and ongoing compliance as you prepare to enter the market.
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Frequently Asked Questions (FAQs)
An overseas company generally needs to register if it opens a place of business in the UK or usually carries out business from a UK location. If it has no UK base, it may not need to register with Companies House, although UK tax obligations can still apply. The exact position depends on how the business operates.