How to Write Lease Agreement Ontario (Guide + Template)
How to Write Lease Agreement Ontario is something every landlord and tenant should understand before renting a property. A lease agreement is a written contract that clearly explains rent, rules, and responsibilities.
In Ontario, using a proper written lease is not just helpful—it’s required in most cases. A clear agreement protects both sides and prevents future disputes.
I’ve seen Ontario landlords rely on verbal promises or outdated lease forms, only to end up in avoidable disputes over rent increases, deposits, or notice rules. When someone is renting for the first time, even one missing clause can create serious problems later at the Landlord and Tenant Board.
In this article, you’ll learn:
- A free fillable lease template
- Step-by-step instructions to write your own agreement
- Ontario legal rules you must follow
- Practical tips from real rental situations
Free Lease Agreement Template (Ontario)
Use this beginner-friendly template to create your lease quickly. You can download pdf or word format.
Ontario Lease Agreement Laws & Legal Requirements You Cannot Ignore
| Topic / Issue | Ontario Legal Rule | Governing Statute |
|---|---|---|
| Governing Legislation | Residential tenancies in Ontario are governed by the Residential Tenancies Act, 2006. Residential tenancy law is purely provincial jurisdiction. | Residential Tenancies Act, 2006, S.O. 2006, c. 17 |
| Amendment Status | The RTA is frequently amended. As of 2026, one of the most important requirements is mandatory use of the Standard Form of Lease. | O. Reg. 9/18: Tenancy Agreements |
| Who Can Sign | Any person granted the right to occupy a rental unit and the person giving that right may sign the lease. | RTA, s. 2(1) |
| Witnesses | Ontario law does not require witnesses for residential lease agreements. | Common law principles |
| Notarization | Residential leases do not need notarization in Ontario. | Common law principles |
| Age Requirement | Minors aged 16+ can legally enter into leases for housing, and landlords cannot discriminate against independent 16 or 17-year-olds. | Human Rights Code, s. 2(1); Minors’ Contracts (Common Law) |
| Mental Capacity | Parties signing the lease must understand the nature and effect of the contract. | Common law principles |
| Deadline to Provide Signed Lease | Landlords must provide a signed copy of the lease within 21 days after signing. | RTA, s. 12(1) |
| Mandatory Standard Lease | Most Ontario residential tenancies must use the government-approved Standard Form of Lease. | O. Reg. 9/18: Tenancy Agreements |
| Landlord Information Requirement | The landlord must provide a legal name and address for service. Tenant rent obligations are suspended until this information is provided. | RTA, s. 12(4) |
| Mandatory Legal Warnings | The Standard Lease must include mandatory information pages explaining rent increases, deposits, and maintenance rights. | O. Reg. 9/18: Tenancy Agreements |
| Filing & Registration | Residential leases do not need to be filed or registered to be legally effective. | Private contract principles |
| Long-Term Lease Exception | Residential leases longer than 21 years may be registered on title to protect tenant interests. | Land Titles Act |
| Failure to Use Standard Lease | If a landlord fails to provide the Residential Tenancy Agreement (Standard Form of Lease) within 21 days of a tenant’s written demand, the tenant may withhold up to one month’s rent under RTA s. 12.1(2). If the landlord fails to provide the form within 30 days from the date rent was withheld, the tenant is legally permitted to permanently retain that one month’s rent under RTA s. 12.1(4). | O. Reg. 9/18 and RTA s. 12.1 |
| “No Pets” Clauses | Clauses banning pets are generally void unless condominium bylaws apply. | RTA, s. 14 |
| Illegal Security Deposits | Damage deposits and other security deposits are illegal except Last Month’s Rent deposits and refundable key deposits. | RTA, s. 105 |
| Automatic Month-to-Month Renewal | Fixed-term leases automatically continue month-to-month after expiry unless legally terminated. | RTA, s. 38 |
| Tenant Right to Standard Lease | Tenants can demand the Standard Form of Lease and may terminate early if the landlord refuses to provide it. | O. Reg. 9/18 and RTA provisions |
| Rent Control Exemption | Rental units first occupied for residential purposes by any tenant after November 15, 2018, or specific newly built detached accessory dwellings (e.g., laneway suites or basement apartments) completed after November 15, 2018, are exempt from the statutory annual rent increase guideline under RTA s. 120.1, though a formal Form N120 or N2 must still be served with 90 days’ notice. | Residential Tenancies Act, 2006 |
One of the biggest surprises for many Ontario landlords is that they usually cannot create their own custom lease agreement and ignore the government form. Ontario requires most residential rentals to use the Standard Form of Lease, and tenants even have the right to demand it later. Another important rule is that fixed-term leases do not simply “end” after one year. In Ontario, they automatically continue as month-to-month tenancies unless proper legal steps are taken.
The rules about deposits also catch many landlords off guard. Asking for a damage deposit may seem normal, but Ontario law does not allow it. Even a simple “no pets” clause is usually unenforceable. Mistakes like these can create serious problems at the Landlord and Tenant Board, including rent withholding disputes or invalid lease terms.
These rules matter in real life because a poorly written lease can quickly turn small disagreements into expensive legal issues for both landlords and tenants.
Download the free Ontario lease agreement template below to create a legally compliant rental agreement faster.
What is a Lease Agreement in Ontario (Simple Meaning)
A lease agreement is a legal contract between a landlord and a tenant.
In simple words:
- It explains how much rent you pay
- It sets rules for living in the property
- It defines who is responsible for what
Under Ontario’s Residential Tenancies Act (RTA), most rental agreements must follow strict rules. This law protects both landlords and tenants.
If you’re new, read our full article on what is a lease agreement in Ontario to understand basics before writing one.
When Do You Need to Write a Lease Agreement?
You should write a lease agreement in almost every rental situation:
- Renting out a house, apartment, or basement
- Starting a new tenancy
- Renewing or extending a lease
- Renting to friends or family (still required!)
- Long-term or month-to-month rentals
Even if you trust the tenant, a written agreement avoids confusion later.
Step-by-Step: How to Write a Lease Agreement in Ontario
Follow these steps carefully to create a strong and legal agreement.
Step 1 – Add Correct Names of All Parties
Write the full legal names of:
- Landlord
- All tenants (every adult living there)
This avoids future disputes about who is responsible.
Step 2 – Describe the Rental Property Clearly
Include:
- Full address
- Unit number (if any)
- Extra areas like:
- Parking space
- Storage
- Shared areas
Be specific. For example: “Basement unit with separate entrance.”
Step 3 – Mention Lease Term
Choose one:
- Fixed-term lease (e.g., 1 year)
- Month-to-month lease
Also mention:
- What happens after the lease ends
(In Ontario, it usually becomes month-to-month automatically)
Step 4 – Set Rent Amount & Due Date
Clearly write:
- Monthly rent amount
- Due date (e.g., 1st of each month)
- Payment method (bank transfer, cash, etc.)
Important:
Under Ontario law (RTA s. 83), any clause imposing a flat fee, percentage penalty, or interest charge for late rent payment is completely void. Landlords cannot contract out of this provision. The only permissible fee is an NSF charge up to a maximum of $20.00, or the actual bank fee incurred, as explicitly authorized under O. Reg. 516/06, s. 11.
Step 5 – Include Utilities & Extra Costs
Mention who pays for:
- Electricity
- Water
- Internet
- Gas
Example:
- Tenant pays electricity
- Landlord pays water
Step 6 – Add Rules & Restrictions
You can include rules about:
- Pets
- Smoking
- Noise
- Guests
But rules must be reasonable and legal
Landlords are not allowed to:
- Ban guests completely
- Discriminate (e.g., no children)
Step 7 – Maintenance Responsibilities
Under RTA s. 20(1), the landlord holds a non-delegable, statutory obligation to maintain the rental unit in a good state of repair, fit for habitation, and compliant with health, safety, and housing standards. The tenant is solely responsible for ordinary cleanliness under RTA s. 33. Any lease clause shifting ‘minor upkeep,’ repairs, seasonal lawn maintenance, or snow removal onto the tenant within the lease is legally void. Shifting maintenance requires a separate, legally independent service contract with distinct compensation.
In most rental situations, landlords must keep the property in good condition.
Step 8 – Signatures & Date
Both parties must:
- Sign the agreement
- Add date
Under RTA s. 12, a tenancy agreement is enforceable once occupancy is granted, even if a formal signature is missing. However, if the landlord fails to provide the tenant with a copy of the signed lease or the landlord’s legal name and address for service within 21 days of commencement, the tenant’s obligation to pay rent is legally suspended under RTA s. 12(4) until that information is delivered.
This article on how to write a lease agreement in Ontario should be used alongside the official lease template. It’s important to follow Ontario legal requirements and understand lease agreement basics. You may also need a rental application form and a rent receipt template.
Ontario Legal Rules You MUST Follow
Here are key legal rules every landlord and tenant should know:
| Rule | What It Means |
| Standard Lease Required |
Landlords must provide Ontario’s official lease form
|
| Rent Increase Rules |
Rent can only increase once per year (with notice)
|
| Security Deposit |
Only last month’s rent is allowed
|
| Tenant Rights |
Protected by the Landlord and Tenant Board
|
Common Mistakes When Writing Lease Agreements
Avoid these common errors:
- Missing key details (rent, dates, names)
- Adding illegal clauses:
- “No guests allowed”
- “No children”
- Not using the standard lease form
- Relying only on verbal agreements
These mistakes can make your agreement weak or invalid.
What Makes a Lease Agreement Invalid in Ontario?
A lease may become invalid if:
- It does not follow the Ontario standard lease format
- It violates tenant rights
- Signatures are missing
- It includes illegal charges or deposits
For example, asking for a damage deposit is not allowed in Ontario.
Real-Life Example (Easy to Understand)
Let’s say you rent out a basement in Toronto.
Without a written lease:
- Tenant delays rent
- You argue about utility payments
- No clear rules = confusion
With a proper lease:
- Rent amount and date are clear
- Utilities are clearly assigned
- Rules are agreed in advance
A simple agreement can prevent major disputes later.
Tips to Write a Strong & Clear Lease Agreement
Follow these expert tips:
- Use simple and clear language
- Avoid copying random templates online
- Always check Ontario legal rules
- Keep everything in writing
- Give a signed copy to the tenant
If unsure, compare with a standard lease agreement Ontario example.
FAQs
Is it mandatory to write a lease agreement in Ontario?
Yes, in most cases landlords must provide the official standard lease form. This helps ensure all terms follow Ontario rental laws and protects both parties.
Can I create my own lease agreement?
Yes, you can create your own lease, but it must follow Ontario laws. It also cannot replace the mandatory standard lease where required.
What if tenant refuses to sign?
If a tenant refuses to sign, you should not move forward with the rental. Proceeding without a signed agreement can create legal risks and disputes later.
Can I change terms after signing?
Lease terms can only be changed if both landlord and tenant agree. The changes should always be done in writing for legal clarity.
Is verbal lease agreement valid in Ontario?
A verbal lease can be legally recognized, but it is risky and difficult to prove. It is always better to use a written agreement for safety.
