Start with your partnership agreement
Your partnership agreement, or for an LLP your members' agreement, should say how a partner joins, how they leave, what notice they must give, how their share is valued and paid out, and whether the business carries on. Follow it. Where a general partnership has no written agreement, or the agreement is silent, the Partnership Act 1890 fills the gaps. Under those default rules a new partner can only join with the consent of every existing partner.
Check whether the partnership carries on
In a general partnership with no agreement to the contrary, a partner's death or bankruptcy, or notice from any partner in a partnership with no fixed term, ends the partnership. The remaining partners then have to wind it up or form a new partnership to carry on the business. A well-drafted agreement avoids this by saying the business continues and the others buy out the leaving partner's share. An LLP is a separate legal person, so it carries on whoever joins or leaves. It needs at least 2 members: if it trades with only 1 for more than 6 months, that member becomes personally liable for the debts it runs up after that, if they know it has only 1 member.
Protect the leaving partner from future debts
In a general partnership, every partner is personally liable for the firm's debts. A new partner is not liable for debts run up before they joined. A partner who leaves stays liable for debts run up while they were a partner. They can also be liable for debts the firm runs up after they leave, to anyone who dealt with the firm before and has not been told they have gone.
To end that risk, tell the firm's customers, suppliers and lenders in writing, and publish a notice in the Gazette for everyone else. The partners who remain should agree to take over the firm's debts and indemnify the leaving partner. Paying out a partner's share can create a capital gain for them, which may qualify for Business Asset Disposal Relief.
Tell HMRC
A new individual partner registers for Self Assessment as a partner. The nominated partner shows each partner's share of profit, and the dates they joined or left, on the partnership tax return. A partner who leaves and stops trading must tell HMRC they have stopped being self-employed. If the partnership is registered for VAT, update the partners' details with HMRC on form VAT2.
Limited partnerships: tell Companies House
A limited partnership must send Companies House a statement of any change in its partners, including a limited partner becoming a general partner or the other way round, and of changes to a limited partner's contribution. Each general partner commits an offence if the statement is late.
LLPs: tell Companies House
An LLP must tell Companies House when a member joins or leaves, or when a member's details change, including whether they are a designated member. A new individual member must have verified their identity with Companies House first. Until notice of a departure is filed, people who do not know a member has left can treat them as still being a member.
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1. Agree the change in writing
Record the new partner's admission, or the leaving partner's retirement, the date it takes effect, the new profit shares and how the leaving partner's share will be valued and paid. Use the method your agreement sets out.
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2. Update the partnership or members' agreement
Vary the agreement so it names the current partners and their shares. If the original was a deed, make the variation a deed too.
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3. Notify Companies House if you are an LP or an LLP
File form LP6 for a limited partnership, or LL AP01, LL AP02 or LL TM01 for an LLP, within the deadline. For an LLP, get the new member's Companies House personal code before you file.
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4. Tell HMRC
Register a new partner for Self Assessment, record the dates on the partnership return, and update the partners' details for VAT on form VAT2 if the partnership is registered.
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5. Tell the people the firm deals with
Write to customers, suppliers, the bank and any regulator or licensing body. For a general partnership, publish a notice in the Gazette when a partner leaves.
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6. Update bank mandates, insurance and your business stationery
Change who can sign for the firm, check your insurance still covers the right people, and update any document that lists the partners or members.
Legal basis
Primary legislation and key regulations
Official guidance
Life of a limited liability partnership (LLP) (opens in a new tab)
Companies House guidance on appointing and removing members and the forms.
gov.uk
Companies House forms for limited partnerships (opens in a new tab)
Form LP6 for a change in a limited partnership.
gov.uk
Register a partner for Self Assessment (SA401) (opens in a new tab)
The form a new individual partner uses to register with HMRC.
gov.uk
Provide or update your partnership details for VAT (opens in a new tab)
How to add or remove partners on form VAT2.
gov.uk
Partnership Act 1890 (opens in a new tab)
The default rules for general partnerships, including sections 17 and 36 on liability of incoming and outgoing partners.
legislation.gov.uk