OHI | Can My Tenant? · Ontario rental question #22
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Last verified: September 15, 2026
Quick answer: Often, yes. A tenant can generally have a roommate or additional occupant without making that person a tenant on the lease. However, the arrangement may require the landlord’s consent if it is really an assignment or sublet. Overcrowding, condominium rules, safety issues and what happens when the original tenant leaves can also change the analysis.
The RTA does not automatically make every occupant a tenant. LTB Interpretation Guideline 21 explains that paying money to the tenant—or even making a payment directly to the landlord—does not by itself determine tenancy status. The real substance of the arrangement matters.
An assignment transfers the tenancy to someone else. A sublet usually involves the tenant giving another person possession for a shorter period while retaining a right to return. Both are governed by specific consent rules.
Can the landlord add the occupant to the lease?
Adding someone as a tenant normally requires agreement. The landlord should not assume that accepting a payment automatically settles the person’s legal status, and the tenant cannot usually force the landlord to add a roommate as a named tenant.
Can extra rent be charged?
An additional occupant does not automatically permit an unlawful rent increase or a new occupancy fee. Lawful-rent rules continue to apply. Separately metered utilities or other existing lawful lease terms may affect costs.
What if the original tenant moves out?
If the tenant permanently leaves and another person remains, section 100’s unauthorized-occupant process may become relevant. Landlords should obtain prompt advice because timing can matter.
What should the tenant do?
- Keep responsibility for rent, damage and occupant conduct clear.
- Check lawful occupancy standards and condominium rules.
- Do not disguise a transfer of the entire unit as a roommate arrangement.
- Put household arrangements in writing, especially payments and move-out expectations.
What should the landlord do?
- Determine whether the named tenant still lives in and controls the unit.
- Focus on provable overcrowding, damage or interference rather than assumptions.
- Avoid inadvertently representing that an occupant has been accepted as a tenant without understanding the consequences.
- Get prompt advice if the tenant leaves and the occupant stays.
Example
A tenant stays in a two-bedroom unit and shares it with a partner. That is usually different from the tenant moving away and turning the whole unit over to the partner.
Related OHI guides and tools
Official sources
- Ontario Residential Tenancies Act, 2006
- Landlord and Tenant Board: Renting in Ontario
- Current LTB forms, instructions and filing information
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General information only: This article discusses Ontario residential tenancies and is not legal advice. Some rentals are exempt from all or part of the RTA. Outcomes depend on the facts and evidence. Rules and forms can change; verify current information with Tribunals Ontario or obtain advice from a licensed Ontario legal professional.