How to Register a Business Partnership in the UK (2026 Guide)

Starting a business with a partner involves more than a shared vision and a handshake agreement. To operate legitimately and ensure tax compliance, you must formally register your business partnership. However, the process is not the same for every structure.

The steps you need to take depend entirely on whether you are forming a General Partnership, a Limited Partnership (LP), or a Limited Liability Partnership (LLP). Therefore, this guide breaks down the registration requirements for each, ensuring you establish your business on a solid legal and financial footing.

Understanding the Types of UK Business Partnerships

Before you can register, you must understand the structure you are creating. Well, the three main types of partnerships in the UK have different rules regarding liability, administration, and registration.

How to Register a General Business Partnership

A general partnership is the most straightforward structure. Legally, the partnership exists as soon as two or more people start carrying on a business with a view to profit. There is no requirement to register with Companies House. However, you must register with HM Revenue & Customs (HMRC) for tax purposes.

Choose a Business Name

• You can trade under the partners’ own names or choose a different business name.
• If you choose a name that doesn’t include all the partners’ surnames, you must follow the rules set out in the Business Names Act.

Nominate a ‘Nominated Partner’

• One partner must be chosen as the ‘nominated partner’. This person is responsible for managing the partnership’s tax returns and correspondence with HMRC.
• Now, this does not change the fact that all partners are jointly responsible for the tax due.

Register the Partnership with HMRC

• The nominated partner must register the partnership for Self Assessment with HMRC. When you start trading, do it as soon as possible.
• Also, the partnership will be issued with its own Unique Taxpayer Reference (UTR).

Register Each Partner for Self Assessment

• Crucially, every individual partner is responsible for their own tax and National Insurance contributions.
• Each partner must register for Self Assessment with HMRC separately, even if they have been registered before as a sole trader.
• Moreover, each partner will use their personal UTR to file their own tax return, which must include their share of the partnership’s profits or losses.

Draft a Partnership Agreement

• While not a formal registration document, a partnership agreement is a vital internal document. It sets out the rules on how the partnership will be run, including profit-sharing ratios, responsibilities, and what happens if a partner leaves.
• Furthermore, without an agreement, the default provisions of the Partnership Act 1890 apply, which may not suit your intentions.

How to Register a Limited Partnership (LP)

A Limited Partnership has a more formal registration process because it offers limited liability to some partners. It combines partners with unlimited liability (general partners) and those with liability limited to their investment (limited partners).

Thus, the registration process involves all the HMRC steps for a General Partnership, plus a mandatory registration with Companies House.

Step 1: Follow all HMRC Registration Steps for a General Partnership

• Appoint a nominated partner, register the partnership for a UTR, and ensure all individual partners are registered for Self Assessment.

Step 2: Register with Companies House

• Under the Limited Partnership Act 1907, every LP must be registered with the Registrar of Companies (Companies House).
• If an LP is not registered at Companies House, it is treated as a general partnership, meaning all partners—including those intended to be ‘limited’—will have unlimited liability.
• So, the application for registration requires details of the firm name, nature of the business, the name of each partner (specifying general or limited), and the capital contributed by each limited partner.

How to Register a Limited Liability Partnership (LLP)

An LLP is a corporate body and has a legal personality separate from its members. This structure combines the flexibility of a partnership with the protection of limited liability. Eventually, the registration process is more aligned with that of a limited company.

Step 1: Incorporate the LLP at Companies House

• You must ‘incorporate’ the LLP with Companies House. This is a formal legal process.
• You will need to provide:
  • A registered name and address for the LLP.
  • The names and details of at least two ‘designated members’. Designated members have extra legal responsibilities for filing accounts and returns.
  • An incorporation document signed by all members.

Step 2: Register for Tax with HMRC

• Once incorporated, you must register the LLP with HMRC.
• Even though LLPs are separate legal entities, they are typically treated as transparent for tax purposes. This means the LLP itself does not pay Corporation Tax.
• Instead, profits are distributed to the members, who are then individually responsible for paying Income Tax and National Insurance on their share via their Self Assessment tax returns, similar to a general partnership.
• Ultimately, the LLP must still file a Partnership Tax Return each year.

What Are the Other Key Registrations to Consider

Depending on your business activities and turnover, you may need to complete additional registrations.

• VAT Registration: A partnership is treated as a single entity for VAT purposes. So, if your partnership’s VATable turnover exceeds the registration threshold, you must register for VAT in the firm’s name. For LPs, VAT registration is normally done in the name of the general partner(s) only.
• PAYE Registration: If your partnership employs staff (who are not partners), you must register as an employer with HMRC and operate a PAYE scheme.
• Construction Industry Scheme (CIS): Partnerships operating in the construction industry must register for CIS.

This article provides a general overview of the registration process. And, the specific requirements can vary, and getting the structure and registrations right from the outset is critical for compliance and liability protection.

For detailed official guidance, you should consult the relevant pages on GOV.UK, Companies House, and the HMRC manuals (such as the VAT Registration Manual). For tailored advice on choosing the right structure and completing the registration process correctly, use AccountingFirms.co.uk to find a qualified professional.