Avoiding Lease Mistakes: Ontario Tenant Agreement Tips

Leases & Agreements Ontario published July 01, 2025 Flag of Ontario

Signing a lease in Ontario can be exciting, but it's also one of the most important legal steps you'll take as a tenant. Making even small mistakes with leases and agreements can lead to costly misunderstandings, extra fees, or even eviction. This guide will help you avoid common pitfalls, navigate key forms, and protect your rights under Ontario law.

Understanding the Lease: What Ontario Tenants Need to Know

In Ontario, most residential tenancies are governed by the Residential Tenancies Act, 2006[1]. The lease, or rental agreement, is a legal contract between you and your landlord that sets out your rights and responsibilities. It's essential to read, understand, and hang on to a copy of your lease throughout your tenancy.

Common Lease Mistakes by Tenants

  • Not reading the entire lease: Skipping the fine print can mean missing extra fees, restrictions on guests, or rules about maintenance and repairs.
  • Not getting everything in writing: Verbal agreements are difficult to prove if a dispute arises. Always ask for changes or promises in writing.
  • Misunderstanding deposits and fees: Know the difference between last month’s rent and a damage deposit. In Ontario, only certain deposits are legal—Understanding Rental Deposits: What Tenants Need to Know offers more detail.
  • Not keeping a signed copy: You have the right to a signed copy of the lease. If your landlord does not provide it, request one in writing.
  • Overlooking rules about subletting or assigning: Moving out early or having someone else take over your lease has specific legal steps—never act without written approval and following the right process.

Many tenants make these mistakes, but you can protect yourself by understanding your responsibilities and rights. For an overview tailored to your region, see Tenant Rights in Ontario.

Ontario’s Standard Lease and Essential Forms

Since April 2018, most private residential tenancies in Ontario must use the official "Standard Form of Lease." This form helps ensure both tenant and landlord are clear on the terms of the agreement.

Key Form: Ontario Standard Lease

  • Name: Residential Tenancy Agreement (Standard Form of Lease)
  • When to use: For almost all new private residential tenancies.
  • Official source: Download the Standard Lease form
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Other Important Ontario Forms and When to Use Them

  • Form N9: Tenant's Notice to End tenancy
    • Use when: You want to properly give notice to end your lease.
    • How to use: Fill in your move-out date, sign, and give it to your landlord with correct notice (usually 60 days for monthly leases).
    • Official form: N9: Tenant's Notice to End tenancy
  • Form T2: Application About Tenant Rights
    • Use when: You believe your landlord has violated your rights (e.g., illegal entry, harassment, or not providing a copy of the lease).
    • How to use: Complete the form and file it with the Landlord and Tenant Board, along with a fee. You can attach supporting documents.
    • Official form: T2: Application About Tenant Rights

The Landlord and Tenant Board of Ontario is where all disputes and applications are officially handled.

Best Practices: Before, During, and After Signing Your Lease

By following these steps, you’ll safeguard yourself against many common tenant challenges in Ontario.

What Happens After You Sign?

Once you sign a lease, you have important obligations, but you’re also protected under Ontario law. You must pay rent on time, respect the property, and follow the rules outlined in your agreement. At the same time, your landlord must maintain the unit, respect your privacy, and follow proper procedures for ending the tenancy or raising the rent.

Moving or looking for a new place? Find rental homes across Canada on Houseme for listings, advice, and tools to help you navigate your next tenancy.

Remember: Staying organized and informed is the best way to protect your rights and avoid costly mistakes as a tenant in Ontario.

FAQ: Lease Agreements and Tenant Rights in Ontario

  1. Do I have to use the Standard Lease in Ontario?
    Yes, most new private residential leases must use the Standard Lease. If your landlord doesn't provide it, you can request one in writing and may withhold one month’s rent until you receive it.
  2. What information must be included in my lease?
    The lease must state the names and addresses of all parties, rent amount and due date, rental period, and include all rules (such as for pets or guests). Any different or extra terms added must follow Ontario law.
  3. Are security deposits allowed in Ontario?
    No, but landlords can ask for a "last month's rent deposit" only. For more, see Understanding Rental Deposits: What Tenants Need to Know.
  4. Can I end my lease early?
    Only in certain cases, such as with landlord’s written agreement, by assigning the lease, or using grounds found in the law. Use Form N9 for proper notice.
  5. Where can I learn more about my rights?
    Visit Tenant Rights in Ontario for detailed, up-to-date information.

How To: Handle Lease Problems and Notice in Ontario

  1. How do I formally give notice to end my lease?
    Use Form N9, fill in your details and intended move-out date, and deliver it to your landlord with at least 60 days’ notice (for monthly rental periods). Always keep a copy.
  2. What should I do if my landlord won’t provide a Standard Lease?
    Send a written request. If still not received, you may withhold one month's rent. If you eventually receive the lease, you must pay the withheld rent. Disputes can be handled by the Landlord and Tenant Board.
  3. How can I dispute an illegal clause in my lease?
    File Form T2 with the LTB to argue your rights were violated. Be ready to attach evidence like your lease copy and communications.

Key Takeaways for Ontario Tenants

  • Always review, understand, and keep a copy of your lease.
  • Use only legal forms and follow official notice procedures.
  • Ask for written confirmation of any changes to your lease.
  • Stay informed with resources like Tenant Rights in Ontario and the Landlord and Tenant Board.

Need Help? Resources for Tenants


  1. [1] See Residential Tenancies Act, 2006
  2. Ontario Standard Lease Form and guides: Ontario Guide to the Standard Lease
  3. Tribunal, forms, and procedures: Landlord and Tenant Board (LTB)
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.