How to Open a UK Company for a Consulting Business

Starting a consulting business can be relatively simple: you sell expertise, advice, analysis or specialist services to clients. But once you decide to operate through a UK limited company, there are several legal, tax and administrative decisions to make before you start invoicing.

For founders building a consulting firm for UK or international clients, a UK private limited company can provide a separate legal identity, a professional structure and a practical platform for future growth. Incorporation is handled through Companies House, while tax administration is primarily handled by HM Revenue & Customs (HMRC).

This guide explains how to open a UK company for a consulting business, what information you need, how taxation works, and the compliance responsibilities that continue after incorporation.

What Is a Consulting Business?

A consulting business provides specialist knowledge or professional advice to clients in exchange for fees. The model can cover almost any industry, including:

• Business and management consulting
• IT and technology consulting
• Marketing consulting
• Financial and commercial consulting
• Human resources consulting
• Project management
• Strategy and operations
• Engineering and technical consulting
• Education and training
• International business advisory services

A consultant might work alone, employ a team, subcontract specialists or eventually build a larger consultancy with recurring contracts. For example, a founder could establish a company that provides operations consulting to Nigerian businesses while also serving UK and European clients remotely. The same UK company could potentially handle contracts, invoices, software subscriptions, staff costs and other business expenses. The important point is that the company becomes a separate legal entity from its owner.

Why Set Up a UK Limited Company for Consulting?

A consultant can operate as a sole trader, but incorporation may make sense where the business is intended to become a substantial commercial operation.

1. Separate legal identity

A limited company is legally separate from its shareholders and directors. This distinction can be useful when entering contracts, hiring people, taking on commercial commitments or building a business that could eventually be sold. Limited liability does not mean that directors are automatically protected from every business-related liability. Personal guarantees, wrongful conduct, certain tax liabilities and other circumstances can create personal exposure.

2. Professional structure

Some corporate clients prefer contracting with an incorporated business rather than an individual. A company name, company number, business bank account, formal invoices and written contracts can help establish a clear commercial structure.

3. Easier separation of business finances

A company allows you to maintain a clear distinction between company money and your personal finances. This becomes increasingly important as revenue grows. Mixing personal and business spending can make bookkeeping, tax reporting and financial decision-making unnecessarily difficult.

4. Potential for growth

A consulting company can move beyond the founder's personal capacity. You may eventually employ consultants, use subcontractors, develop training products, create software, enter strategic partnerships or bring in investors. The right structure from the beginning can make those changes easier to manage.

Step 1: Decide Whether a Limited Company Is Right for You

Before registering, consider how you expect the consulting business to operate. A limited company is often attractive when you:

• Expect meaningful commercial revenue
• Want to build a long-term consultancy
• Work with corporate clients
• Need to employ or subcontract other professionals
• Want a distinct business identity
• Expect to reinvest profits into growth
• May eventually have multiple shareholders

However, incorporation also creates administrative responsibilities. A company must maintain accounting records, file accounts, submit a confirmation statement and meet tax obligations. For a very small consultancy with minimal income, a sole-trader structure may sometimes be simpler. The best choice depends on your expected profits, circumstances and plans.

Step 2: Choose the Company Name

Your company name must comply with UK naming rules and cannot normally be the same as, or too similar to, an existing registered company where this would cause an objection. You should also think beyond Companies House. Before settling on a name, check:

• Domain availability
• Social media handles
• UK trademark databases
• Whether the name could be confused with another consultancy
• Whether the name still makes sense if your services expand

For example, naming a company "London HR Consulting Ltd" may make sense for a specialist HR practice, but could become restrictive if you later move into broader business transformation services. A broader brand can sometimes give a growing consultancy more room to evolve.

Step 3: Choose the Directors and Shareholders

A UK private company limited by shares needs at least one director. The director is legally responsible for managing the company and ensuring that required filings and statutory obligations are dealt with properly.

You also need to decide who owns the company. The shareholders own shares in the company, while directors manage it. These roles can be held by the same person. A founder can therefore be the sole director and sole shareholder of a consulting company. You should also identify the company's People with Significant Control (PSC). In a simple one-founder company, the founder will commonly be both the shareholder and PSC.

Identity verification matters

Companies House identity verification is now part of the UK's corporate transparency reforms. Mandatory identity verification began on 18 November 2025, with a transition period for existing companies and individuals. Directors and PSCs need to comply by their applicable deadlines. This is particularly important for international founders who may be unfamiliar with the new Companies House process.

Step 4: Provide a UK Registered Office Address

Every UK limited company needs an appropriate registered office address in the country where it is registered. The address must be a physical UK address where company correspondence can reach someone acting for the company and where delivery can be acknowledged. A PO Box cannot be used as the registered office.

The registered office address is publicly visible on the Companies House register. For consultants working from home, this creates a practical privacy consideration. You may prefer to use an appropriate professional address instead of publishing your residential address. This is one area where founders should distinguish between a registered office and a normal business or trading address. They serve different purposes and do not necessarily have to be the same.

Step 5: Select Your SIC Code

When incorporating the company, you need to state what the business does using one or more Standard Industrial Classification (SIC) codes. For consulting businesses, the appropriate code depends on the actual services being provided. For example, management consulting activities other than financial management commonly fall under SIC code 70229.

But don't choose a code simply because it sounds close to your business. Your SIC code should accurately represent your company's principal activities. A technology consultant, marketing consultant and engineering consultancy may require different classifications. If your business changes significantly later, you can update the SIC codes through the appropriate Companies House filing process.

Step 6: Incorporate the Company

Once you have chosen the name, directors, shareholders, registered office, SIC code and other required information, you can apply to incorporate the company. The standard online incorporation route for a private limited company with model articles currently costs £100, according to Companies House guidance. On successful incorporation, the company receives important details including:

• Company name
• Company registration number
• Incorporation date
• Registered office
• Director information
• Shareholder information
• PSC information

You can then use the company as the contracting entity for your consulting activities.

Step 7: Set Up Business Banking and Accounting

Once incorporated, open a dedicated business bank account or suitable business payment account. Do not treat the company's account as an extension of your personal bank account. Your accounting system should capture:

• Client invoices
• Payments received
• Contractor costs
• Software subscriptions
• Travel expenses
• Professional fees
• Advertising and marketing
• Equipment
• Payroll
• Dividends
• Director transactions
• Tax liabilities

For a consulting company, good records are particularly important because many costs can be connected to remote working, software, travel, research, subcontractors and professional services. Whether an expense is actually deductible for tax purposes depends on the circumstances and applicable rules, so avoid assuming that every business-related purchase automatically reduces Corporation Tax.

Step 8: Register for Corporation Tax

When your company begins doing business, you generally need to add Corporation Tax services to its HMRC business tax account. HMRC considers activities such as buying, selling, advertising, renting property or employing someone as signs that a company has started doing business. Your company will need to keep appropriate accounting records and submit its Company Tax Return.

For the financial year beginning 1 April 2026, the UK Corporation Tax small profits rate is 19% for companies with profits below £50,000, while the main rate is 25% for profits above £250,000. Companies between those thresholds may qualify for marginal relief, subject to the relevant rules. The tax rate applies to taxable profits, not simply the amount of money entering your business bank account. That distinction matters for consultants. A company generating £150,000 of revenue does not automatically pay Corporation Tax on £150,000.

Step 9: Decide How You Will Pay Yourself

One of the biggest differences between running a company and working as a sole trader is how you extract money from the business. A director-shareholder may receive:

• Salary
• Dividends
• Reimbursement of legitimate business expenses
• Other payments where appropriate

Salary is normally processed through PAYE, while dividends are distributions of available company profits and are not business expenses for Corporation Tax purposes. The most tax-efficient combination depends on your circumstances, other income, company profits, National Insurance considerations and current tax rules. This is an area where a professional accountant can add considerable value, especially once consulting income becomes substantial.

Step 10: Consider VAT

VAT registration is not automatically required just because you establish a UK company. The key issue is taxable turnover and the nature and location of your supplies. The current UK VAT registration threshold is £90,000 of taxable turnover. You generally need to register if your taxable turnover goes over the threshold or you expect it to do so under the applicable rules.

Consultants serving international clients need to look beyond the UK threshold. The VAT treatment of services can depend on where the customer belongs, whether the customer is a business or consumer, and the type of service being supplied. For example, a UK consultancy providing certain business-to-business services to an overseas company may have different VAT treatment from a consultancy selling services directly to UK consumers. Cross-border consulting therefore deserves specific tax advice rather than a blanket "charge VAT on everything" approach.

Step 11: Put Proper Client Contracts in Place

In consulting, the contract can be as important as the company formation itself. A strong consulting agreement should clearly establish:

• Scope of work
• Deliverables
• Fees
• Payment dates
• Expenses
• Confidentiality
• Intellectual property ownership
• Liability limitations
• Termination rights
• Client responsibilities
• Dispute resolution
• Data protection responsibilities

Consider a scenario where a consultant produces a business strategy, presentation, market research report and proprietary framework for a client. Who owns the intellectual property after payment? If the contract does not address this clearly, the parties may have different expectations. For agencies and consultants developing software, designs, reports, training materials or proprietary methodologies, intellectual property clauses deserve particular attention.

Step 12: Understand Ongoing Compliance

Opening the company is only the beginning. A UK consulting company normally has continuing filing and record-keeping obligations, including:

Annual accounts

The company must prepare and file accounts with Companies House within the applicable deadline.

Confirmation statement

Companies must periodically confirm that Companies House information remains accurate.

Corporation Tax

The company must calculate its taxable profits, file its Company Tax Return and pay Corporation Tax by the relevant deadlines.

Company records

The company should maintain appropriate accounting and statutory records.

Changes to company information

Changes involving directors, PSCs, registered office details, shareholders and other company information may need to be reported. Companies House expects company information to remain accurate and up to date.

A Practical Setup Checklist for Consultants

Before taking your first major client, aim to have these pieces in place:

1. Decide on the business structure.
2. Choose and check the company name.
3. Identify directors and shareholders.
4. Complete required identity verification.
5. Establish a compliant registered office.
6. Select appropriate SIC code(s).
7. Incorporate the company.
8. Set up business banking.
9. Establish bookkeeping and accounting procedures.
10. Register for Corporation Tax when required.
11. Assess whether VAT registration applies.
12. Set up PAYE if employing staff or paying salary through payroll.
13. Prepare professional client contracts.
14. Review professional indemnity and other relevant insurance.
15. Establish a system for storing invoices, receipts and contracts.
16. Create a calendar for tax and Companies House deadlines.

What About Overseas Founders?

You do not necessarily need to live in the UK to own a UK company. International founders can establish UK companies, but incorporation is only one part of operating internationally. You may also need to consider:

• Identity verification
• UK registered office requirements
• Banking and payment services
• Your country of personal tax residence
• Where the company's management actually takes place
• UK Corporation Tax
• VAT
• Double-taxation considerations
• Client-country tax rules
• Immigration or work-permission issues if you intend to physically work in the UK

A UK company does not automatically make its owner a UK tax resident, nor does incorporating in the UK automatically eliminate tax obligations in another country. For founders operating across borders, this distinction is critical.

IncorpUK, as a UK company formation and management platform serving global founders, is relevant to this broader administrative landscape, but international tax and residency questions may require independent professional advice.

Common Mistakes to Avoid

Using the company account for personal spending

This makes accounting and tax administration harder and can blur the distinction between the company and its owner.

Choosing an inaccurate SIC code

Your SIC code should describe what the company actually does, not simply what sounds commercially attractive.

Ignoring contracts

A consulting business sells expertise, but poorly defined scope can quickly turn profitable projects into disputes.

Treating turnover as profit

Revenue is not the same as taxable profit. Costs, allowable deductions and accounting adjustments matter.

Forgetting overseas tax obligations

A UK incorporation does not necessarily settle the tax position of an international founder or overseas client relationship.

Leaving compliance until the deadline

Companies House and HMRC obligations are easier to manage when records and deadlines are handled throughout the year.

Frequently Asked Questions

Do I need a UK company to start a consulting business?

No. You can operate as a sole trader or through other structures. A limited company may be appropriate when you want a separate legal entity, corporate clients, growth potential or a more formal business structure.

Can a non-UK resident own a UK consulting company?

Yes, non-UK residents can own UK companies in many circumstances. However, incorporation does not automatically determine your personal tax residence or eliminate tax obligations in your home country.

What SIC code should a consulting company use?

It depends on the consulting services provided. Management consulting other than financial management is commonly classified under SIC code 70229, but businesses should select codes that accurately reflect their activities.

Does a consulting company have to register for VAT?

Not necessarily. VAT registration depends primarily on taxable turnover and the applicable VAT rules. The current UK registration threshold is £90,000, although other rules can apply to particular businesses and cross-border supplies.

Can I pay myself a salary from my consulting company?

Yes. A director can generally receive salary through the company's payroll, subject to PAYE and applicable tax and National Insurance rules.

Can I take dividends from my consulting company?

A shareholder may receive dividends when the company has sufficient distributable profits and the necessary corporate procedures have been followed. Dividends are different from salary and should not simply be treated as personal withdrawals.

Do I need an accountant for a UK consulting company?

Not necessarily, but professional accounting support can be particularly useful as revenue, payroll, VAT, international clients or tax complexity increases.

Can I run the consulting company from outside the UK?

It is possible in many circumstances, but overseas management can create tax, residency, permanent-establishment and other international issues. These should be assessed based on the founder's actual circumstances.

Final Thoughts

Opening a UK company for a consulting business is more than filling out an incorporation form. The company name, ownership structure, SIC code, registered office, banking arrangements, contracts, accounting system and tax registrations all form part of the foundation you are building. For a solo consultant, the process can be relatively straightforward. For a growing consultancy with employees, overseas clients, multiple shareholders or significant intellectual property, the decisions become more consequential.

The strongest approach is to separate the setup into two stages: incorporate correctly, then build the compliance and commercial systems that allow the company to operate properly. Get those fundamentals right early, and your consulting company will be in a much stronger position to win clients, manage revenue, hire people and grow beyond its founder.