Subletting and Assignment Laws in New Brunswick

Tenant Rights & Responsibilities New Brunswick 3 min read · published March 09, 2026 Flag of New Brunswick

Tenants in New Brunswick often consider subletting or assigning their lease when circumstances change, such as job relocation, family needs, or financial pressure. Both subletting (letting someone live in your unit while you keep the lease) and assignment (transferring the lease entirely) have legal differences that affect your rights and responsibilities. This guide explains what provincial tenancy rules require, when landlord consent is needed, typical timelines and forms, and practical steps tenants can take to document requests and protect their rental history. It also covers what to do if a landlord unreasonably denies a request and how to raise disputes with the proper tribunal. Clear examples will help you decide the safest option for your situation.

How subletting and assignment work in New Brunswick

Subletting means you remain the tenant on the lease while someone else occupies the unit; assignment means the tenant transfers the lease and responsibility to a new person. Both options change who is responsible for rent, damages and lease terms. The provincial legislation defines rights for tenants and landlords and sets the tribunal that handles disputes.[1]

  • Notice: Tenants should provide a clear written request to the landlord describing whether they want to sublet or assign the lease.
  • Timeline: Keep a copy of when you sent the request and any landlord responses; timelines can matter if the tribunal gets involved.
  • Payments: Make who pays rent and handles deposits clear in writing to avoid disputes over arrears or refunds.
  • Evidence: Collect photos, messages and signed agreements so you can prove terms and dates if a dispute arises.
Always send requests to the landlord in writing and keep a dated copy.

When landlord consent is required

Under New Brunswick tenancy rules, many leases require landlord consent for either subletting or assignment. A landlord may have legitimate reasons to refuse, such as credible concerns about the proposed occupants ability to pay rent or causing serious damage, but they cannot act unreasonably. If your landlord refuses, ask for the refusal in writing and the reasons given so you have a record for a tribunal application if needed.[2]

  • Notice: Ask for written reasons if consent is denied so you can respond or apply to the tribunal.
  • Safety: Landlords may refuse for safety or legal compliance reasons, but vague or discriminatory refusals can be challenged.
  • Contact: If you are unsure, contact the tribunal or tenant services to confirm your options before proceeding.
Do not rely on verbal permission; always get landlord consent in writing.

Practical steps to request a sublet or assignment

Follow a clear, documented process so you protect your rights and rental record if something goes wrong.

  1. Write a formal request describing whether you want to sublet or assign, proposed dates, and the prospective occupants details.
  2. Attach supporting documents like references, credit information, or proof of income for the proposed occupant.
  3. Set a reasonable deadline for a response (for example, 7-14 days) and note that date in your records.
  4. If refused, request written reasons and consider applying to the Residential Tenancies Tribunal to resolve the dispute.
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Common tenant questions and answers

Can I sublet without my landlords permission?
Generally no; most leases and provincial rules require landlord consent. If consent is withheld unreasonably, you may apply to the tribunal for relief.
What happens to my deposit when I assign the lease?
Whoever is listed on the lease at the time the tenancy ends or transfers is generally responsible for deposit matters; provide written instructions and confirm any deposit transfer or refund in writing.
How do I challenge an unreasonable refusal?
Request written reasons, keep evidence of your request and proposed replacement, and file an application with the Residential Tenancies Tribunal if needed.

How-To

Steps to request landlord consent for a sublet or assignment:

  1. Draft a written request that states clearly whether you want a sublet or an assignment and the start and end dates.
  2. Include supporting documents for the proposed occupant: references, employment proof, and contact information.
  3. Send the request by an identifiable method (email with read receipt or registered mail) and save copies with the sent date.
  4. If denied, ask for written reasons and consider filing with the Residential Tenancies Tribunal for a decision.

Key Takeaways

  • Notice: Always make sublet or assignment requests in writing and keep dated records.
  • Evidence: Collect documentation from proposed occupants to strengthen your request.
  • Contact: Use the Residential Tenancies Tribunal if your landlord refuses without reasonable grounds.

Help and Support / Resources


  1. [1] Government of New Brunswick  Residential Tenancies information
  2. [2] Residential Tenancies Act (New Brunswick)
  3. [3] Residential Tenancies Tribunal (Government of 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.