Joint tenancies: what happens when one tenant wants to leave
22 September 2026 · AgentCheck Editorial · 9 min read
Part of our UK Landlord Legal Guide
On a joint tenancy every tenant is liable for the whole rent, and one tenant cannot simply remove themselves. Now that all private tenancies in England are periodic, a valid notice to quit from one joint tenant ends the tenancy for everybody in the property. The clean routes are a deed of assignment, which keeps the existing tenancy running, or a surrender and re-grant, which ends it and starts a new one. The informal version, where somebody just swaps their room, causes most of the disputes.
This is one of the most common calls a landlord gets and one of the easiest to handle badly. Three sharers signed together, one has a new job in another city, and they want to know whether they can find someone to take their room. The answer is usually yes, but how you do it decides whether you end up with a clean paper trail or an argument about a deposit eighteen months later. Everything below applies to England. Wales, Scotland and Northern Ireland have separate legislation and different mechanics.
What a joint tenancy actually is
A joint tenancy is one tenancy held by several people together. There are not three tenancies in a three-person house share, there is one, with three names on it. The practical consequence is joint and several liability: each tenant is liable for the whole of the rent and the whole of any damage, not a share of it. If two pay and one does not, the rent is short and you can pursue any of them for all of it. Tenants very often believe they are each responsible for a third. They are not, and it is worth saying so at the start of a tenancy rather than during a dispute.
It also means a departing tenant does not stop being a tenant by moving out. Handing back a key and telling the others they are leaving changes nothing. Until the tenancy is formally varied or ended, that person remains liable for the rent on the whole property.
The change that matters most in 2026
Since 1 May 2026 the Renters' Rights Act has been in force in England. Fixed-term assured shorthold tenancies are gone and every private tenancy is periodic by default. Section 21 has been abolished, and possession runs through the revised Section 8 grounds. A tenant can end a periodic tenancy by serving a valid notice to quit. The Act requires that notice to give at least two months, unless the landlord has agreed a shorter period in writing, and it must still expire at the end of a rent period under the ordinary common law rule.
Here is the part that surprises everyone. A notice to quit served by one joint tenant ends the entire tenancy, for all of them. That is a long-standing common law principle and it survives under the new regime. The remaining tenants do not have to agree, and may not even know it has happened. Once the notice expires, the tenancy they were living under has ended.
So a departing tenant trying to get themselves off the tenancy can accidentally evict their housemates, and you can lose a tenancy you wanted to keep. Tell sharers this at the outset. When one wants out, steer them towards one of the two routes below.
Route one: deed of assignment
Assignment transfers the outgoing tenant's interest to the incoming one. The existing tenancy carries on with the same start date, the same terms and the same deposit. Usually the least disruptive option.
Two things to understand first. You have to consent. Section 15 of the Housing Act 1988 implies a term into a periodic assured tenancy that the tenant may not assign, sub-let or part with possession without the landlord's consent, and the usual rule that consent must not be unreasonably withheld does not apply to that implied term. You are entitled to refuse.
Second, the mechanics are fiddlier than the word suggests. Joint tenants hold the tenancy together rather than in separable shares, so the practical approach is a single deed to which everyone is party: landlord, outgoing tenant, continuing tenants and incoming tenant. It should be executed as a deed, record the effective date, release the outgoing tenant from future liability from that date but not from past liability, and confirm the incoming tenant accepts the obligations from that date. Use a solicitor or a properly drafted professional form, not a template you found online.
Route two: surrender and re-grant
The alternative is to end the existing tenancy by agreement and grant a new one to the continuing tenants plus the replacement. A deed of surrender signed by you and all existing tenants ends the old tenancy on an agreed date, and a new agreement starts the same day. Clean and easy to explain, but it resets everything, so treat it as a genuinely new tenancy: fresh right to rent checks on the incoming tenant, the start-of-tenancy compliance documents served again, the deposit handled as below, and any guarantee put in place afresh. It is often the better choice where you wanted to update the terms anyway.
The informal swap, and why it goes wrong
The version that causes most trouble is no paperwork at all. One tenant moves out, someone else moves in, the rent keeps arriving, and nobody signs anything. You can end up with an implied surrender and re-grant created by conduct, on terms nobody has written down. The deposit may be protected against a tenancy that no longer exists, in the names of people who have left. Any guarantor has a strong argument that they are off the hook. When something goes wrong, you will be reconstructing who agreed what from text messages.
The deposit
- Do not refund the leaving tenant's share. The deposit is held against the tenancy as a whole, not in slices. Return a third and you are a third short against damage caused by anyone.
- On an assignment, the deposit usually stays where it is, but the scheme record needs updating and the prescribed information needs reissuing and re-serving on the current tenants. Deposit paperwork that no longer matches reality surfaces at the worst possible moment.
- On a surrender and re-grant, treat it as a new tenancy deposit. Check with your scheme how they want the transfer handled, protect it against the new tenancy, and serve fresh prescribed information within the statutory window.
- Let the tenants settle between themselves. The incoming tenant pays the outgoing tenant directly for their share, with a written acknowledgement from the outgoing tenant that they have been paid and have no further claim on the deposit you hold. That is the most useful piece of paper in the whole process.
- Record the condition. Inspect and photograph at the changeover so the departing tenant's position is documented. Our guide to handling a tenancy deposit dispute explains what adjudicators look for.
Referencing the replacement
Reference the incoming tenant to the same standard as any new applicant: affordability, a previous landlord reference where there is one, identity and right to rent checks in England, and a guarantor if the referencing indicates one. The remaining tenants will want it waved through because they have already promised the room to a friend. Do not. If the new person defaults, all of them are liable, which is small comfort when you are chasing three people for arrears.
Assume any existing guarantee does not extend to the new arrangement. A guarantor who signed up for a particular tenancy with particular tenants has a strong argument that a surrender and re-grant released them, and even on an assignment the position is arguable. Get a fresh guarantee deed. Our guide to guarantors covers how.
What you can charge
In England, the Tenant Fees Act 2019 caps what a tenant pays for a variation, assignment or novation of a tenancy at fifty pounds, or your reasonable costs if they are higher and you can evidence them with invoices or receipts. Anything above that is a prohibited payment, and the general expectation is that the charge will not exceed fifty pounds. Note that this caps what the tenant pays, not what your letting agent charges you, so check your terms of business separately. Our piece on holding deposits and the Tenant Fees Act covers the wider rules.
Where the law is genuinely unsettled
Some of this is messier than a short article can resolve, and it is worth being honest about which parts. The effect of a purported assignment by one joint tenant, as opposed to a deed involving all parties, is technically awkward, which is exactly why the multi-party deed is the safe route. Whether particular conduct has created an implied surrender is fact-specific and frequently argued. Guarantor liability after a change of sharer has produced inconsistent outcomes. And the practical handling of a one-tenant notice to quit where the landlord wants the others to stay is still being worked through since the Act came into force, so put a replacement arrangement in place by agreement before the notice expires rather than letting it lapse and hoping. Where real money or a contested departure is involved, take legal advice before signing anything.
A practical sequence
- Get the request in writing from the departing tenant, and written agreement from the remaining ones.
- Tell them not to serve a notice to quit, and explain why.
- Decide whether you are assigning or surrendering and re-granting, and say so.
- Reference the replacement fully, including right to rent, before committing to anything.
- Sort the deposit: scheme record, prescribed information, and the written release between tenants.
- Inspect and photograph on the changeover date, then sign the deed, or the surrender plus the new agreement, with everyone party to it.
- Reissue the compliance pack and put a fresh guarantee in place if one is needed.
Handled this way, a change of sharer is a couple of hours of administration. Handled informally, it is the most common source of end-of-tenancy disputes in shared housing. If you let to groups regularly, particularly students, build it into your standard process rather than working it out each time. Our student lets guide covers the group-tenancy issues that sit alongside it.
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