When you're renting a home in Ontario, it's important to know that not every clause a landlord puts in a lease is legally enforceable. The Residential Tenancies Act, 2006 sets rules that protect tenants from certain unfair or illegal lease terms, no matter what your agreement says. This article explains which lease clauses are illegal in Ontario, so you can confidently identify your rights and responsibilities as a tenant.

Which Lease Clauses Are Illegal in Ontario?

Ontario's rental laws are designed to prevent unreasonable demands from landlords. Illegal lease clauses are those that directly contradict or try to remove rights given to tenants under the Residential Tenancies Act, 2006 (read the legislation). Some of the most common unenforceable clauses include:

• No Pets — Any lease clause outright banning pets is not legal in most cases, except where a pet would violate local condo rules or pose severe allergies or risks (such as in shared housing). However, excess damage or disturbance by a pet may be grounds for notice.
• Waiving the Right to Notice — Lease clauses cannot waive a tenant’s right to proper written notice for entry, eviction, or ending the tenancy. Landlords must always follow legal notice procedures.
• Requesting Additional Deposits — The law only allows one rent deposit (equivalent to one month’s rent) and, if applicable, a key deposit. Damage deposits or post-dated cheques are not permitted. For more on what landlords can and cannot require, see Understanding Rental Deposits: What Tenants Need to Know.
• "As-Is" Property or Maintenance Waivers — Landlords cannot avoid their basic obligations for repairs and maintenance through lease clauses. They remain responsible for the rental property's safety and upkeep regardless of lease wording. Learn more about maintenance rights at Health and Safety Issues Every Tenant Should Know When Renting.
• Non-refundable Fees — Clauses for non-refundable cleaning or "application" fees are not valid in Ontario.
• No Guests or Restricting Overnight Visitors — Lease clauses that outright ban guests, or set strict limits on how long guests can stay, are unenforceable. However, long-term additional occupants may need to be disclosed.
• Automatic Rent Increases — A lease cannot permit increases above the guideline or bypass proper notice periods. For more, see provincial law or learn about "Understanding Rent Increases: What Tenants Need to Know".
• Penalty Clauses for Early Termination — While you may owe rent until the end of your lease, clauses demanding large penalties for moving out early or "re-letting fees" are not permitted.

Summary: Even if you signed a lease with any of these terms, Ontario law says those specific terms are not legally enforceable. Your rights as a tenant remain protected by the Act.

What Happens If There’s an Illegal Lease Clause?

If your rental agreement includes an illegal clause, you are not legally required to follow it. The rest of the lease remains in effect, but the offending clause is "void" (meaning it has no effect). You do not have to take any immediate action unless your landlord tries to enforce the clause. If you feel pressured or if your landlord pursues action based on an invalid lease term, you can seek help from the Landlord and Tenant Board (LTB) of Ontario.

Filing a Complaint with the Landlord and Tenant Board

If your landlord makes demands based on illegal lease clauses, you may file an application with the LTB to resolve the issue. Common reasons to file include:

• Being asked for an illegal deposit
• Disputes about maintenance responsibility
• Landlords refusing reasonable guest visits

The most common application for tenants is Form T2: Application about Tenant Rights. This form lets tenants complain about illegal actions or terms by landlords, including enforcement of unlawful lease clauses.

• Form Name and Number: Application about Tenant Rights (T2)
• When to use: If your landlord is enforcing a term that is not allowed by law or negatively affects your legal rights as a tenant.
• Practical Example: If your landlord tries to evict you because you have a small pet, despite a "no pets" clause, you could file a T2 form to assert your rights.
• Download: LTB Official Tenant Application Forms

Your lease remains valid except for the unenforceable clause. If you are not sure about a specific lease term, you may contact the LTB or a tenant support service.

How Ontario's Standard Lease Protects You

Ontario introduced a Standard Lease that most new agreements must use. It is written to be clear and includes only legal terms. Landlords are not allowed to add terms that limit tenant rights or contradict the Residential Tenancies Act.

Related Tenant Rights Information

• See Tenant Rights in Ontario for a comprehensive, up-to-date overview of your legal protections.
• To understand what comes next after you sign a lease, check What Tenants Need to Know After Signing the Rental Agreement.

For those searching for their next home, Browse apartments for rent in Canada with Houseme—an all-in-one rental search platform that makes finding a legal, safe home easier.

Frequently Asked Questions

1. Can a landlord ban all pets in Ontario?
   Most blanket "no pets" clauses are not enforceable under Ontario law, except in specific cases with building regulations or health/safety concerns.
2. Is a damage deposit legal in Ontario?
   No, landlords cannot demand a damage or security deposit, only a rent deposit (up to one month's rent) and, if needed, a refundable key deposit.
3. Do I have to follow a lease rule that's illegal?
   No. Terms that violate the Residential Tenancies Act are void and not legally binding—you do not have to comply.
4. What should I do if my landlord insists on enforcing an illegal clause?
   If your landlord is trying to enforce an illegal clause, document the situation and consider filing Form T2 with the Landlord and Tenant Board.
5. Where can I get help understanding my lease?
   You can contact the LTB, local tenant support clinics, or review government resources for clear explanations.

Key Takeaways

• Lease clauses that conflict with the Residential Tenancies Act are not enforceable—even if you agreed to them in writing.
• Common illegal clauses include "no pets," extra deposits, non-refundable fees, and waivers of landlord maintenance responsibilities.
• If you're pressured to follow an illegal clause, contact the Landlord and Tenant Board for help and file Form T2 if needed.

Need Help? Resources for Tenants

• Ontario Landlord and Tenant Board – Official information, forms, and dispute resolution
• Ontario Standard Lease Resources – Official guide
• Legal Aid Ontario Tenant Hotline – Access free legal advice on tenant issues

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1. Residential Tenancies Act, 2006 – Ontario Government Legislation
2. Landlord and Tenant Board of Ontario – tribunalsontario.ca/ltb
3. Ontario Standard Lease Resources – Guide to Ontario's Standard Lease

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