Mitigating Damages When a Tenant Breaks Lease in NB

Leases & Agreements New Brunswick 4 min read · published March 29, 2026 Flag of New Brunswick

Breaking a lease is stressful for many renters. In New Brunswick, tenants who must leave early can take specific steps to reduce or avoid charges from a landlord: give clear notice, help find a new tenant, document the unit condition, and use official dispute channels when needed. This guide explains common tenant duties, what landlords must do to mitigate losses, the official forms and tribunal routes available in New Brunswick, and practical examples so you can act quickly and protect your finances and rental record.

Before you leave: tenant responsibilities

Tenants have duties even when they must end a tenancy early. Acting reasonably and documenting everything helps lower the chance that a landlord will successfully claim large damages.

  • Give written notice as soon as you know you will leave; check your lease for required timing and any notice clauses.
  • Keep paying rent until the lease ends or a replacement tenant takes over, unless you have another written agreement.
  • Document the unit with photos and dated notes showing condition when you plan to vacate.
  • Communicate in writing with your landlord about your plans, showing efforts to help find a replacement tenant.
Keep all communication and receipts in one folder to support your case later.

You can also review practical moving and exit advice in What to Do If You Need to Leave Your Rental Before the Lease Expires for steps specific to early departures.

How landlords must mitigate damages

Landlords are generally required to make reasonable efforts to re-rent the unit and reduce their losses. That means they cannot simply leave the unit empty and charge the former tenant for the entire remaining rent without trying to find a new tenant.

  • Landlords should advertise and show the unit to suitable applicants as soon as they know the tenant will leave.
  • They must consider reasonable applicants and cannot unreasonably reject someone to keep charging the former tenant.
  • If a replacement tenant starts paying, the outgoing tenant's obligation typically ends from that date forward.
Document everything: a clear paper trail of your attempts to help find new tenants shows good faith.

Official forms and when to use them

When discussions with your landlord do not resolve the dispute, you may need official forms or an application to the tribunal. Below are common forms and how a tenant might use them in New Brunswick.

  • Application to the Residential Tenancies Tribunal (form name and number vary by issue) — used when a tenant or landlord asks the tribunal to decide a dispute; for example, a tenant can apply if a landlord seeks unpaid rent after the tenant left and the tenant says the landlord did not try to re-rent the unit [1].
  • Notice of Termination / Notice to Quit (form varies) — a landlord may use an official notice form to end tenancy for cause or non-payment; tenants should check the exact form and timing required before responding [3].
  • Evidence package (no single form) — include photos, dated messages, adverts showing re-rental attempts, receipts and any replacement tenant applications when you make or respond to an application to the tribunal [2].
File applications promptly and respect filing deadlines for tribunal claims.

For help finding a new place quickly you can also Find rental homes across Canada on Houseme to advertise your own search or explore options in other cities.

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What to expect at the tribunal

If the landlord files a claim or you file a dispute, the Residential Tenancies Tribunal (or equivalent provincial hearing body) will review evidence and decide whether the landlord mitigated losses and whether claimed damages are reasonable.

  • You may be asked to provide copies of notices, photographs, and proof of your re-rental efforts.
  • Hearings often allow both parties to explain steps taken; bring witnesses or written statements if helpful.
  • If the tribunal finds the landlord did not mitigate, it may reduce or dismiss the claimed damages.

FAQ

Can my landlord charge me for the full remaining rent if I break my lease early?
Not usually. Landlords must make reasonable efforts to re-rent the unit; if they do, your obligation typically ends when a new tenant begins paying.
What if I cant pay rent while trying to find a replacement tenant?
Continue communicating with your landlord in writing, document your efforts to find a replacement, and consider applying to the tribunal if a dispute arises.
How do I prove the landlord didnt try to re-rent the unit?
Save dated copies of ads, emails, messages, and witness statements showing the landlords actions or lack of actions; these help at a tribunal hearing.

How-To

  1. Give written notice to your landlord outlining your move-out date and reason.
  2. Document the units condition with photos and collect receipts for any repairs you paid for.
  3. Offer to show the unit and help screen potential replacement tenants; keep records of these efforts.
  4. If the landlord claims damages you dispute, gather your evidence and file an application with the Residential Tenancies Tribunal [1].
  5. Attend the hearing with your evidence and a short timeline of events to explain your mitigation efforts.

Key Takeaways

  • Give prompt written notice and keep paying rent until a lawful end or written agreement.
  • Document condition, communications, and re-rental efforts to protect yourself.
  • Use the tribunal and official forms if you cannot resolve a claim directly with the landlord.

Help and Support / Resources


  1. [1] Residential Tenancies Tribunal - Government of New Brunswick
  2. [2] Residential Tenancies Act - Government of New Brunswick (legislation)
  3. [3] Official forms and guides - 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.