Ontario Form L8: What Tenants Need to Know About Changing Locks

Safety & Security Ontario published June 27, 2025 Flag of Ontario

As a tenant in Ontario, understanding your rights around changing locks is essential to maintaining both your security and your legal standing. This guide explains Form L8 – Changed Locks by Tenant Form – and how it works under Ontario’s rental laws. We’ll break down when tenants are allowed to change locks, how to notify the landlord properly, and what steps you should follow to avoid disputes or legal trouble.

Understanding Your Right to Change Locks in Ontario Rentals

According to the Residential Tenancies Act, 2006, tenants in Ontario generally cannot change the locks to their rental unit without the landlord’s consent – unless they are ordered to do so by the Landlord and Tenant Board (LTB). This rule protects both your safety and the landlord’s property rights.

However, there can be exceptional circumstances, such as escaping an unsafe situation. In these cases, tenants must complete and submit Form L8 to explain the circumstances and ask the LTB to make a decision. Form L8 is designed for tenants who have already changed the locks, or plan to do so, and need authorization or a ruling from the Board.

What is Form L8 – Changed Locks by Tenant?

Form L8 ("Application Relating to Changed Locks – Tenant Application") is an official document from the Landlord and Tenant Board. Tenants use this form to request the Board’s decision if they have changed the locks, or intend to, and are unsure about their legal rights, or if there is a disagreement with the landlord.

  • Official name: L8 – Application Relating to Changed Locks (Tenant Application)
  • Where to find it: Download directly from the Landlord and Tenant Board’s official forms page
  • Typical uses: Seeking LTB authorization after changing locks without consent, or requesting an order related to providing key copies

Example: If you had to change the lock in an emergency because you felt at risk and the landlord disagrees or requests a copy of the new key, you would submit Form L8 to get an official ruling from the Board.

How and When to Use the L8 Form: Step-By-Step for Tenants

If you find yourself in a situation where you’ve changed the locks or plan to, and need clarity or a ruling, here’s how to proceed with Form L8:

  • Make sure you have a valid reason under safety or legal grounds (for instance, to protect yourself from risk).
  • Gather evidence supporting your reasons (such as police reports, communications regarding safety concerns, or correspondence with your landlord).
  • Download Form L8 from the LTB website.
  • Complete all sections clearly, providing a detailed explanation of your circumstances.
  • Submit the form to the LTB — you can file online, by mail, or in person. There is a filing fee; check the most current fee schedule on the LTB website.
  • Await a notice of hearing; the Board may schedule a hearing to review both sides.
  • Prepare for the hearing by organizing your evidence and being ready to discuss your reasons for changing the locks.
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If you change the locks, you must usually provide a key to the landlord unless the LTB rules otherwise. Failing to follow the correct procedure could lead to legal issues.

Always check the latest guidance on lock changes under the Residential Tenancies Act, 2006 to ensure your actions are compliant.

Key Tenant Actions Before and After Changing Locks

Before you change any locks, consider discussing the situation with your landlord and documenting all communications. If you feel unsafe, reach out to local services for support. After changing the locks, act quickly to submit Form L8 if you anticipate a dispute, so your rights remain protected. Understanding the full set of obligations both tenants and landlords have—such as providing entry for repairs or emergencies—can help prevent misunderstandings. See Obligations of Landlords and Tenants: Rights and Responsibilities Explained for more details.

Relevant Legislation and the Landlord and Tenant Board

For a complete view of your legal protections, see Tenant Rights in Ontario.

Safety, Security, and Your Home

Security and privacy are key parts of enjoying your rental home. Tenants are encouraged to address any health or safety issues promptly and consult LTB resources or seek advice if unsure. Learn more in Health and Safety Issues Every Tenant Should Know When Renting.

Looking for a secure and comfortable place to rent? Browse apartments for rent in Canada for the latest listings nationwide.

Frequently Asked Questions About Changing Locks (Form L8)

  1. Can I change the locks to my apartment without asking the landlord?
    Generally, no. You need your landlord’s permission before changing locks unless the LTB has given you special authorization due to security or safety concerns.
  2. What happens if I change the locks without completing Form L8?
    The landlord may apply to the LTB for an order against you. If you anticipate a dispute or already changed the locks, promptly submit Form L8 to clarify your position and avoid legal trouble.
  3. Do I have to give the landlord a new key?
    Yes, unless the LTB orders otherwise. Ontario law requires tenants to provide key copies to the landlord after changing locks.
  4. Is there a cost to file Form L8 with the LTB?
    Yes, there is a filing fee. Visit the Landlord and Tenant Board website for the most current fee schedule and payment methods.
  5. Where can I get help filling out Form L8?
    You can contact the LTB directly or reach out to local tenant advocacy organizations for support with your application.

Key Takeaways for Ontario Tenants

  • Always get landlord consent or file Form L8 before changing locks, unless in an emergency.
  • Provide your landlord with a new key unless the LTB says otherwise.
  • Use official resources and file applications through the Landlord and Tenant Board to protect your rights.

If you have concerns, consult the LTB or tenant advocacy groups for up-to-date advice.

Need Help? Resources for Tenants


  1. Residential Tenancies Act, 2006 (Government of Ontario)
  2. Landlord and Tenant Board Forms (Tribunals Ontario)
  3. Landlord and Tenant Board (Tribunals Ontario)
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Canada

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.