Breaking a Lease in Canada: Assign, Sublet, or Exit Early

Breaking a lease before its end date can leave a Canadian tenant liable for the landlord's actual losses, but every province allows at least one legal way out: assignment, subletting, mutual agreement, or, in several provinces, an early-termination right tied to family violence or long-term care.

Residential tenancy law in Canada is set provincially, not federally, and the details differ across the country. This article covers the general framework and the specific rules in Ontario, British Columbia, Alberta, and Quebec. For rules elsewhere, see Canada tenant rights.

What It Means to Break a Lease

A fixed-term lease runs from a start date to an end date, commonly one year. Leaving before that end date without a recognized legal basis, and without the landlord's agreement, is what most people mean by breaking a lease.

Doing so is generally a breach of contract. A tenant who hands in the keys and stops paying rent usually remains responsible for rent and other costs the landlord can show it actually lost, until the unit is re-rented or the term would otherwise have ended. That is different from a periodic tenancy (month-to-month or week-to-week), which can normally be ended with proper notice and no legal excuse.

Legal Ways to End a Fixed-Term Lease Early

Assignment or Sublet

Assigning a lease permanently transfers it to a new tenant, who takes over the rights and obligations for the rest of the term, and the original tenant generally has no further liability. Subletting is temporary: a new occupant takes over the unit, but the original tenant keeps the lease and stays responsible for the rent and the subtenant's conduct.

Every jurisdiction covered here builds assignment and subletting into its tenancy scheme, and in most cases consent cannot be unreasonably withheld. In Ontario, a tenant who believes consent was arbitrarily or unreasonably withheld can apply to the Landlord and Tenant Board (Residential Tenancies Act, 2006, SO 2006, c 17, ss 95-100). British Columbia bars unreasonably withholding consent where six months or more remain on a fixed term, and prohibits charging any fee just to consider the request (Residential Tenancy Act, SBC 2002, c 78, s 34). Alberta requires consent that cannot be unreasonably withheld, and treats prolonged silence as consent (Residential Tenancies Act, SA 2004, c R-17.1, s 22).

Quebec's Civil Code took a different, and recently changed, path. Since a February 2024 amendment, a landlord may refuse a lease assignment for any reason, not only a serious one, but a refusal on a non-serious ground simply terminates the lease on the date proposed in the notice, releasing the tenant. Subletting stayed more protective: a landlord can refuse only for a serious reason, such as the prospective subtenant's poor conduct or genuine inability to pay, and an unjustified refusal can be challenged before the Tribunal administratif du logement (Civil Code of Québec, CQLR c CCQ-1991, arts 1870-1871). A landlord generally has 15 days to respond, and silence beyond that counts as consent. Since 2024, proposing an assignment has become one of the more reliable ways for a Quebec tenant to exit a lease, because even a refusal ends it.

Ending the Lease by Mutual Agreement

A landlord and tenant can simply agree to end the tenancy early, on whatever date and terms they negotiate. Ontario formalizes this with Form N11, Agreement to End the Tenancy, which is voluntary for both sides; neither has to give a reason, and a landlord cannot make signing one a condition of renting the unit. Other provinces allow the same kind of negotiated release, though not all use a standard form.

Family Violence and Long-Term Care Exceptions

Ontario, British Columbia, and Alberta each let a tenant end a lease early, without the usual notice periods or penalty, where the tenant or a dependant is a victim of domestic or family violence. Ontario requires 28 days' notice with a supporting statement or document, such as a restraining order (Residential Tenancies Act, 2006, SO 2006, c 17, s 47.1). British Columbia and Alberta use a similar model built around a confirming statement from an authorized professional; British Columbia extends the same one-month notice route to a tenant assessed as requiring, or admitted to, long-term care (Residential Tenancy Act, SBC 2002, c 78, ss 45.1-45.2; Residential Tenancies (Safer Spaces for Victims of Domestic Violence) Amendment Act, Alberta). These notices are confidential, and a landlord who improperly discloses one can face penalties.

Leaving Without a Legal Basis

A tenant who moves out early without using one of the routes above is generally still bound by the lease. The realistic exposure, however, is usually smaller than the full remaining rent, because landlords are subject to a duty to mitigate their losses. Ontario's Residential Tenancies Act states this directly: a party entitled to claim an amount because of the other's breach must take reasonable steps to minimize the loss (Residential Tenancies Act, 2006, SO 2006, c 17, s 16). British Columbia's Residential Tenancy Branch applies the same principle under Policy Guideline 5, requiring a landlord claiming lost rent to advertise the unit fairly and make reasonable efforts to find a new tenant.

In practice, a departing tenant may still owe rent or advertising costs for the period it reasonably takes to re-rent the unit, but not automatically the full balance of the term. What counts as reasonable is decided case by case, and a landlord who cannot show any effort to re-rent has a weaker claim.

What Happens When the Fixed Term Simply Ends

Whether a tenant has to move out on the last day of a fixed term, or can stay, is a separate question from breaking a lease early, and provinces answer it differently. In Ontario, a fixed-term tenancy that is not renewed or terminated automatically continues as a monthly tenancy on the same terms, and the landlord cannot force the tenant out just because the term is over (Residential Tenancies Act, 2006, SO 2006, c 17, s 38). British Columbia reaches a similar result for most tenancies: a clause requiring the tenant to leave at term's end is only enforceable in narrow circumstances, such as a sublet or the landlord's own family moving in; otherwise the tenancy becomes month-to-month. The answer is not the same everywhere, so confirm the rule in your own province before assuming you have to leave.

Comparing the Main Provinces

Keeping a paper trail, the written notice, any consent or refusal, and proof the landlord received it, protects a tenant if a dispute over rent or a deposit follows. For related steps, see security deposits and eviction notices, or Canadian law by province for other topics.

Disclaimer

This article provides general information about ending a residential tenancy early in Canada. It is not legal advice and does not create a lawyer-client relationship. Landlord-tenant law is set provincially, changes over time (Quebec's assignment rules changed in February 2024), and outcomes depend on the specific lease and facts involved. Information in this article was last verified in July 2026. Anyone considering breaking a lease, or facing a claim for doing so, should confirm current rules with their provincial tenancy office or tribunal, or consult a lawyer or licensed paralegal in their jurisdiction.