Subletting and Lease Assignment Rules in New Brunswick

Moving In / Out New Brunswick 4 min read · published March 09, 2026 Flag of New Brunswick

Subletting or assigning a lease can help tenants in New Brunswick avoid breaking a rental agreement while finding someone else to live in the unit. This guide explains the difference between subletting and lease assignment, when landlord consent is required, how written notices and applications work, and what tenants should document to protect their rights. If you are a renter considering subletting, assigning your lease, or leaving early, read these straightforward steps and examples so you can act confidently and follow provincial rules.

Who can sublet or assign a lease?

In New Brunswick a tenant who signed the original rental agreement generally may request to sublet or assign the tenancy, but the lease and the landlord's consent rules determine what happens next. A sublet keeps the original tenant responsible to the landlord while allowing another person to live in the unit. A lease assignment transfers the tenant's rights and obligations to a new tenant once the landlord approves.

Always get landlord permission in writing before a new person moves in.

What the law and the tribunal say

The Residential Tenancies Tribunal handles disputes about tenancy issues, including consent to assign or sublet and related notices [1]. The governing legislation for tenancies in New Brunswick is the Residential Tenancies Act, which explains notice periods, acceptable reasons to refuse consent, and remedies [2].

When a landlord can refuse

  • Landlords may refuse if the lease specifically allows refusal for reasonable reasons, such as prior landlord approval conditions.
  • Refusal must not be arbitrary or discriminatory; decisions should be based on legitimate concerns like references or capacity to pay.
  • Refusing on illegal grounds (race, family status, disability) is prohibited and can be challenged through the tribunal.
Keep written records of every request and response about subletting or assignment.

Notices and forms tenants may use

Tenants in New Brunswick use official forms or written notices when requesting landlord consent or applying to the tribunal. Common items include a written request to sublet or assign and, if needed, an application to the Residential Tenancies Tribunal to resolve a refusal [3]. Attach supporting documents like the proposed subtenant's references and proof of income to strengthen your application.

  • Written request to landlord: state the requested start date, proposed person's name, and contact details.
  • Copy of proposed subtenant's references and proof of income or employment.
  • Record of communications (email, text, or certified mail receipts) showing when you asked for consent.
Respond promptly to any landlord requests for more information to avoid delays or disputes.

Practical steps before you sublet or assign

  1. Check your lease for clauses about subletting and assignment and note any approval procedures.
  2. Prepare a written request including proposed dates and the new occupant's details, and keep a copy.
  3. Send the request by a trackable method and document the delivery.
  4. Arrange an inspection or initial inventory so condition and deposit matters are clear.
  5. If the landlord refuses unreasonably, consider filing an application with the Residential Tenancies Tribunal.
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What about security deposits and responsibility?

When a sublet is approved the original tenant usually remains responsible for rent and damages unless the landlord agrees to a full assignment. Discuss whether the security deposit will be returned to you and re-taken from the incoming tenant, and document any agreement in writing. If you need guidance about deposits or move-out procedures, see related tenant resources.

For more on tenant rights in the province, consult the official overview page Tenant Rights and Landlord Rights in New Brunswick and, if you must leave before the lease ends, read practical steps at What to Do If You Need to Leave Your Rental Before the Lease Expires.

If you want to search for replacement tenants, consider free listing tools and national platforms; for example, Find rental homes across Canada on Houseme can help you reach prospective renters quickly.

FAQ

Can my landlord unreasonably withhold consent to an assignment or sublet?
A landlord should not refuse for discriminatory or arbitrary reasons; if you believe the refusal is unfair you can apply to the Residential Tenancies Tribunal to review the decision.
Do I stay responsible for rent if I sublet?
Yes. In a sublet the original tenant usually remains liable to the landlord unless the landlord accepts a full assignment in writing.
How long does the tribunal take to decide disputes?
Timelines vary; the tribunal schedules a hearing and issues a decision based on case complexity and evidence provided.

How-To

  1. Prepare: read your lease, collect references, proof of income, and draft a written request to the landlord.
  2. Send: deliver your written request by email and by a trackable method and keep copies of everything.
  3. Follow up: respond to landlord questions promptly and provide any additional documents requested.
  4. Apply: if refused without reasonable cause, file an application with the Residential Tenancies Tribunal with all evidence.
  5. Confirm in writing: get any agreement about assignment, deposit handling or release of liability in writing before the new person moves in.

Key Takeaways

  • Get landlord consent in writing to avoid disputes and keep records of every step.
  • Document proposed subtenants' references and income to strengthen requests or tribunal applications.
  • If a refusal seems unreasonable, the Residential Tenancies Tribunal is the official avenue to resolve it.

Help and Support / Resources


  1. [1] Residential Tenancies Tribunal - Government of New Brunswick
  2. [2] Residential Tenancies Act - Government of New Brunswick
  3. [3] Tenant information and forms - Service New Brunswick

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Marie Dubois
Marie Dubois

Bilingual Housing Rights Advisor, Tenant Rights Canada

Marie covers tenant rights across Quebec and the Atlantic provinces in both English and French. With a background in Quebec civil law and residential tenancy, she is a trusted voice on the Tribunal administratif du logement process and francophone tenant rights.