Joint Tenancy Rights and Risks — What Happens When One Tenant Wants to Leave

What Is a Joint Tenancy?

A joint tenancy is one where two or more people hold the tenancy together as a single legal unit. Each joint tenant is equally a tenant — there is no hierarchy, no lead tenant, and no separation of liability in the eyes of the landlord.

The defining feature of a joint tenancy is **joint and several liability**: each tenant is individually responsible for the full rent, not just their share. If one tenant stops paying, the landlord can pursue any or all of the remaining tenants for the entire shortfall. If three tenants share a property at £1,500 per month and one stops paying, the remaining two are legally responsible for covering the £500 shortfall — even though they thought they were only responsible for their own third.

This is the most important thing to understand about joint tenancies before you sign one.

How Notice Works in a Joint Tenancy

Under the Renters Rights Act 2025, periodic tenancies are the default. In a joint periodic tenancy, any of the joint tenants can serve two months' notice to end the tenancy **for all tenants**. This is a significant risk for joint tenants who want to stay: if one housemate falls out with the others and serves a valid notice to quit, the tenancy ends for everyone.

Under pre-Act case law, a single joint tenant serving a notice to quit was enough to end the tenancy. The position under the Renters Rights Act periodic tenancy regime is that notice requirements are modified — tenants should check the latest guidance, as the Act's transitional provisions mean the rules may differ depending on when the tenancy was created.

To avoid this risk, it is worth having a clear agreement between housemates about what happens if one wants to leave.

When One Joint Tenant Wants to Leave

This is the most common practical problem in joint tenancies. If a housemate wants to move out before others, the options are:

**Option 1 — New Tenancy Agreement**

The departing tenant leaves, and the remaining tenants enter into a new tenancy agreement with (or without) a replacement tenant. The landlord must agree to this. The existing tenancy technically ends and a new one begins.

**Option 2 — Deed of Assignment**

The departing tenant assigns their interest in the tenancy to a new person. Requires landlord consent. Less common and more complex legally. The existing tenancy continues.

**Option 3 — Informal Arrangement**

The departing tenant pays their share until a replacement is found, then is effectively replaced. This is the most common arrangement in practice but is legally insecure — the departing tenant remains on the tenancy and liable until a formal change is made.

In all cases, the landlord must be a party to any formal change. A landlord cannot be forced to accept a replacement tenant.

The Deposit in a Joint Tenancy

The tenancy deposit is protected in the names of all joint tenants. At the end of the tenancy, **all joint tenants must consent** to the release of the deposit and agree how it is divided. If one joint tenant refuses to consent, the deposit is held by the scheme until the dispute is resolved through ADR or court.

If a joint tenant left partway through the tenancy, they may still have a claim to part of the deposit at the end — they remain a legal party to the tenancy until it formally ends or a new agreement is entered.

This is why replacing a departing tenant by entering into a completely new tenancy agreement is often cleaner — it gives everyone a fresh start with their deposit.

Cohabiting Couples and Joint Tenancies

Joint tenancies where the parties are in a romantic relationship carry additional complexity if the relationship ends. Neither party has the automatic right to remain — both have equal rights under the tenancy. In the most serious cases, a court injunction under the Family Law Act 1996 can exclude one party from the property, but this requires court proceedings.

If you are in a joint tenancy with a partner and the relationship breaks down, seek legal advice promptly. The earlier you act, the more options you have.

Practical Advice Before Signing a Joint Tenancy

• Discuss and agree upfront what happens if one person wants to leave
• Understand that you are each liable for the full rent
• Consider a tenancy deposit insurance policy that covers scenarios where one tenant stops paying
• Keep a record in Property Passport UK of all rent payments so that if a dispute arises, the payment history is clear

If a Joint Tenant Stops Paying

Your options are limited but include:

• Covering the shortfall and seeking repayment from the defaulting tenant (small claims court if necessary)
• Negotiating an end to the tenancy and finding a replacement
• Seeking advice from Shelter or Citizens Advice about formal options

Do not simply stop paying your share — that puts you in arrears with the landlord and could trigger a possession claim against all tenants.