Subletting : rights and obligations of tenants

Published on November 13, 2025

Subletting allows a tenant to temporarily entrust the use of their dwelling to another person. This process may seem simple, but it carries several important legal obligations. Poorly managed subletting can lead to serious conflicts between the tenant, the subtenant, and the landlord. Our firm can advise you before any subletting or assist you in the event of a dispute related to a residential or commercial lease.

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Subletting is a common practice, especially when a tenant must be away temporarily or wishes to share their dwelling. However, this process is strictly governed by the Civil Code of Quebec. The Code establishes the rights and obligations of the tenant, the landlord, and the subtenant. It is therefore essential to understand the rules before subletting a property.

The right to sublet… under certain conditions

According to section 1870 C.C.Q., a tenant may sublet all or part of the dwelling. They may also assign their lease. However, they must notify the landlord of their intention and provide the name and address of the proposed subtenant.

In addition, they must obtain the landlord’s consent. Without this consent, the sublease is invalid. The landlord cannot refuse without a valid reason. Under section 1871 C.C.Q., refusal must be based on a serious reason, such as the subtenant’s financial incapacity or a risk of disturbance to the neighbors.

If the landlord does not respond within 15 days of receiving the notice, they are deemed to have consented to the sublease.

Applicable fees and legal effects

The landlord may claim only the reimbursement of reasonable expenses related to the sublease (section 1872 C.C.Q.).

As for assignment of lease, it generally releases the original tenant from their obligations (section 1873 C.C.Q.). However, subletting does not have this effect. The tenant remains responsible to the landlord. Therefore, if the subtenant fails to pay or causes damage, the landlord may pursue the original tenant.

Responsibilities of the subtenant

The subtenant has a legal relationship only with the tenant, not with the landlord. Thus, under section 1874 C.C.Q., they are liable to the landlord only up to the amount of the sublease rent.

However, if their behavior causes serious harm to the landlord or other occupants, the landlord may request termination of the sublease (section 1875 C.C.Q.).

Conversely, if the landlord fails to meet their obligations, the subtenant may exercise the tenant’s remedies. These remedies allow enforcement of the landlord’s obligations, such as heating or maintenance issues (section 1876 C.C.Q.).

Special cases : subletting a residential dwelling

The subletting of a dwelling is governed by several specific provisions :

In summary

Subletting may seem simple, but it carries several legal risks. The tenant remains responsible to the landlord. A poorly managed sublease can lead to lease termination or civil claims.

Before proceeding, it is essential to :

  • Obtain written consent from the landlord;
  • Draft a clear sublease contract that complies with the law;
  • Ensure the subtenant fully understands their obligations.
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Conclusion

Subletting is a useful tool for many tenants. However, it must be carried out with caution and in accordance with the Civil Code. A poorly executed sublease can have significant consequences, including legal action by the landlord or conflicts with the subtenant.

Our firm can support you in your subletting process, lease assignment, or any real estate dispute. Contact us for a consultation and receive a complete analysis of your situation. To learn more about our services, also visit our page on real estate law

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