Ontario Lease Requirements: Standard Lease, Mandatory Terms, and Prohibited Clauses

Ontario has strict requirements about lease agreements, including the mandatory use of a government-prescribed standard lease for most residential tenancies. Understanding these rules helps landlords create enforceable agreements while avoiding illegal clauses that could be voided by the Landlord and Tenant Board (LTB).

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed paralegal or attorney in Ontario for guidance specific to your situation. Information last verified: March 2026.

Ontario Standard Form of Lease

Mandatory Use

Since April 30, 2018, landlords must use the Ontario Standard Form of Lease for most new residential tenancy agreements. This requirement applies to:

• Apartments (including basement apartments)
• Houses and townhouses
• Condominiums rented by the owner
• Single rooms in a house (in most cases)

Exemptions from the Standard Lease

The standard lease is not required for:

• Care homes
• Mobile home parks and land lease communities
• Social and supportive housing
• Tenancies where the tenant shares a kitchen or bathroom with the landlord or their family

Consequences of Not Providing

If a tenant requests the standard lease in writing and the landlord does not provide it within 21 days:

1. The tenant may withhold one month's rent
2. If the landlord still does not provide it within 30 more days, the tenant may keep the withheld rent
3. The landlord must still provide the standard lease to stop further consequences

Written vs. Oral Leases

Both written and oral leases are legally valid in Ontario. However:

The RTA applies equally to both written and oral agreements, and all tenant protections remain in effect regardless of lease type.

Lease Term and Renewal

Fixed-Term Leases

• Most commonly one year
• At the end of the fixed term, the lease automatically converts to a month-to-month tenancy
• The tenant is not required to sign a new lease or move out
• The landlord cannot require the tenant to sign a new fixed-term lease

Month-to-Month Tenancies

• Either party may end the tenancy with proper notice (60 days for tenant, minimum 60 days for most landlord grounds)
• All RTA protections apply equally

Lease Renewal

• Landlords cannot force tenants to renew or sign a new lease
• Increasing rent for lease renewal is not permitted beyond the guideline
• Any "non-renewal" clause is void and unenforceable

Enforceable Additional Terms

Landlords may add terms beyond the standard lease, but they must be consistent with the RTA. Examples of enforceable additional terms:

• Designated parking spot assignments
• Rules about use of common areas (e.g., laundry room hours)
• Insurance requirements (tenant liability insurance)
• Rules about balcony usage
• Guest registration procedures (reasonable ones only)

Prohibited Clauses (Void and Unenforceable)

The RTA overrides any lease clause that contradicts tenant rights. The following clauses are automatically void even if signed by the tenant:

Subletting and Assignment

• Tenants have the right to request the landlord's consent to sublet or assign the unit
• The landlord cannot unreasonably refuse an assignment
• If the landlord refuses all potential assignees or does not respond within 7 days, the tenant can give 30 days' notice to end the tenancy
• The landlord may charge a reasonable fee for the actual costs of processing a sublet or assignment

Best Practices for Ontario Landlords

1. Always use the Ontario Standard Lease — It's not just recommended, it's the law for most tenancies
2. Provide a signed copy within 21 days — Avoid rent withholding consequences
3. Don't include illegal clauses — They're void anyway and create disputes
4. Understand automatic renewal — Fixed-term leases become month-to-month; plan accordingly
5. Keep copies of everything — Maintain signed originals for your records
6. Review additional terms carefully — Only add terms that comply with the RTA

How Landager Helps

Landager helps landlords manage lease terms, track renewal dates, and ensure all agreements comply with Ontario's standard lease requirements — so you can focus on managing your properties, not paperwork.

Back to Ontario Landlord-Tenant Laws Overview.