Your Rights if a Co-Tenant Leaves in Northern Ireland

Sharing a rented home can be convenient and cost-effective, but circumstances change. If you live in Northern Ireland and one tenant wants to leave a joint tenancy, it can raise questions about your rights, rent payments, and what’s required by law. This guide explains in plain language what happens if a co-tenant moves out, your responsibilities, and what steps you should take.

Understanding Your Tenancy Agreement

Most rented homes with more than one renter in Northern Ireland have a joint tenancy agreement. This means all tenants are equally responsible for the whole tenancy, including paying the rent, caring for the property, and sticking to all terms.

  • Joint liability: If one tenant leaves, remaining tenants are still legally responsible for the full rent and tenancy duties.
  • Named tenants: Check whose names are on the agreement. Only named tenants have legal rights or obligations under the contract.

For more, see the NI Direct guide to tenancy types.

What Happens When a Co-Tenant Moves Out?

If a joint tenant leaves, the situation depends on agreement with your landlord or agent. Common scenarios include:

  • Tenant leaves informally: If your housemate just moves out and hands in their keys, all remaining tenants still owe the full rent.
  • Whole tenancy ends: Sometimes, all tenants agree with the landlord to end ("surrender") the tenancy and start a new agreement with new tenants.
  • Replacing a tenant: The landlord may allow a new person to replace the departing tenant, usually after referencing checks and with all parties’ agreement.

If You Want to Change the Names on the Tenancy

This is known as a tenancy transfer or "assignment". In Northern Ireland, you need permission from your landlord to change tenants on the contract. If the landlord agrees:

  • Everyone signs a new tenancy agreement or a deed of assignment.
  • You may need to complete referencing or credit checks for the new tenant.

See nidirect’s advice on changing a tenancy.

Your Rights and Responsibilities

As a remaining tenant, you are still fully responsible for the tenancy unless your name is removed from the agreement by mutual consent or a Tribunal order.

  • You must pay the whole rent, even if one person moves out.
  • If the departing tenant is owed any deposit back, this is usually for you and the landlord to arrange, depending on the terms.
  • The landlord is not required to accept a replacement tenant unless agreed in writing.
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What About Notice to Quit?

Once a joint tenant signs and serves a notice to quit, it can end the entire joint tenancy for everyone. In Northern Ireland, tenants must give at least 4 weeks’ written notice (or longer if stated in your agreement). You should:

  • Speak to your landlord early to explain the situation.
  • Confirm in writing what will happen with remaining tenants.

The Notice to Quit must be given in writing. See the official guidance on giving notice.

Always check your tenancy agreement to see if there are any specific rules about one tenant leaving, replacement tenants, or joint liability. Keeping a written record of all communications with your landlord can protect your rights.

Relevant Official Forms and How to Use Them

  • Notice to Quit (No official form name or number)
    Used when a tenant wishes to end their tenancy. Must be given in writing to the landlord, stating the correct notice period. For example: If your flatmate wishes to leave the property, they must serve a written notice at least 4 weeks before moving.
    Official guidance: Giving notice to leave a rental property
  • Application to the Rent Assessment Panel
    If you believe your rent is unfair (for example, if your landlord increases it after a tenant leaves), you can apply using the form found here: Application to the Rent Assessment Panel.

If the landlord and tenants disagree about ending the agreement or returning the deposit, you may apply to the county court or the Rent Assessment Panel for some disputes.

What If There’s a Dispute?

If you and your landlord or the remaining tenants can't agree about ending, transferring, or replacing the joint tenancy, you can:

  • Seek advice from local council housing advice services
  • Contact tenant support charities like Housing Rights NI
  • Refer some matters to the Rent Assessment Panel (Northern Ireland's main tribunal for rental disputes)

Disputes about rent deposits may also be resolved through the Tenancy Deposit Scheme.

Frequently Asked Questions

  1. Can my landlord make me pay my former flatmate’s share of the rent after they move out?
    Yes. With a joint tenancy, all named tenants are "jointly liable" for the whole rent. If one tenant leaves, the landlord can ask remaining tenants for the full amount.
  2. Do I need landlord permission to replace a tenant?
    Yes. You normally need written permission from your landlord before you can change a named tenant or add a new housemate to the tenancy agreement.
  3. Can I force my landlord to give the deposit portion back to the departing tenant?
    No. The landlord will usually return the full deposit at the end of the tenancy, not to individual tenants as they come and go. However, private agreements between tenants on deposit portions are common.
  4. What happens if more than one tenant serves notice?
    If any joint tenant serves notice to quit in the proper way, it can end the tenancy for all occupants, after the notice period ends.
  5. Who do I contact if my landlord won’t cooperate over a change in tenancy?
    You can seek help from Housing Rights NI, your local council housing team, or for rent/tenancy disputes, the Rent Assessment Panel.

Key Takeaways

  • If a joint tenant leaves, remaining tenants must cover the whole rent unless the tenancy is ended or changed.
  • Always put notice or agreement changes in writing and seek landlord approval for any changes to tenancy terms.
  • Official help and dispute resolution is available through the Rent Assessment Panel and tenant support services.

It’s important to know your contract and rights if your living situation changes. Clear communication with your landlord and housemates, combined with early advice, can help prevent problems.

Need Help? Resources for Renters in Northern Ireland


  1. Private Tenancies (Northern Ireland) Order 2006
  2. nidirect Guidance – Giving Notice to Leave a Rental Property
  3. nidirect – Types of Tenancy
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights UK

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for renters everywhere.