Ontario Commercial Lease Agreement Template – Printable & Editable
Ontario Commercial Lease Agreement is a legal contract used when renting a space for business purposes like shops, offices, or warehouses. If you are planning to open a store in Toronto or rent an office in Mississauga, this agreement protects both the landlord and the tenant.
A written lease is very important. I’ve seen many Ontario business owners run into expensive disputes because key lease terms were never properly written down or reviewed before signing. When someone is renting commercial space for the first time, it’s easy to overlook clauses about maintenance costs, personal guarantees, or rent increases that can create serious legal and financial problems later.
It clearly explains rent, responsibilities, and rules. Without it, disputes can happen easily. In this article, you will get a free template plus simple, step-by-step help to understand and use it properly.
What Is an Ontario Commercial Lease Agreement?
An Ontario commercial lease agreement is a contract between a landlord and a business tenant for renting commercial property.
This includes:
- Retail shops
- Office spaces
- Warehouses
- Industrial units
Commercial vs Residential Lease
Under Ontario law, commercial leases are not fully governed by the Residential Tenancies Act (RTA) , which you can review on the official Ontario government website. That means:
- Fewer protections for tenants
- More freedom to negotiate terms
- Rules depend mostly on the contract itself
People who use this agreement:
- Business owners
- Startups
- Property owners
- Investors
In simple words: commercial leases are flexible, but you must read every clause carefully.
Ontario Commercial Lease Laws Most Business Owners Miss
| Topic / Issue | Ontario Legal Rule | Governing Statute |
|---|---|---|
| Governing Legislation | Commercial landlord-tenant relationships are primarily governed by Ontario commercial tenancy law. | Commercial Tenancies Act, R.S.O. 1990, c. C.19 |
| Short Form Lease Language | Parties may use special short-form lease wording that automatically expands into full legal covenants if the lease states it is made under the Act. | Short Forms of Leases Act, R.S.O. 1990, c. S.11 |
| Competition & Exclusivity Clauses | Exclusivity and restrictive covenant clauses may face scrutiny if they unfairly limit market competition. | Competition Act, R.S.C., 1985, c. C-34 |
| Who Can Legally Sign | Individuals age 18+ or authorized corporate officers may sign a commercial lease. | Age of Law Reform Act, s. 1; Business Corporations Act, s. 19 |
| Witness Requirements | Witnesses are generally not legally required unless the lease is executed as a deed. | Conveyancing and Law of Property Act, s. 13 |
| Notarization Requirements | Notarization is generally not required unless registering the lease on title. | Land Titles Act, s. 150 |
| Age & Legal Capacity | A person must be at least 18 years old and mentally capable of signing a lease. | Age of Law Reform Act, s. 1; Substitute Decisions Act, 1992 |
| Rent Default Deadline | A landlord may exercise the right of re-entry only after rent has remained unpaid for 15 ‘clear days’ (excluding the due date and the day of re-entry), meaning legal re-entry typically cannot occur until the 17th day, subject to the lease terms. | Commercial Tenancies Act, R.S.O. 1990, c. C.19, s. 18(1); Interpretation Act, R.S.O. 1990, c. I.11 |
| Legal Action Time Limit | Most commercial lease disputes must be filed within 2 years after the claim was discovered. | Limitations Act, 2002, s. 4 |
| Required Short Form Wording | To use statutory short-form covenants, the lease must specifically state: “This lease is made in pursuance of the Short Forms of Leases Act.” | Short Forms of Leases Act, R.S.O. 1990, c. S.11 |
| Exclusivity Clause Justification | Exclusivity clauses should include legitimate business reasons to reduce competition law risks. | Competition Act, R.S.C., 1985, c. C-34 |
| Filing Requirements | Commercial leases are private contracts and do not need government filing to remain valid between parties. | Commercial leasing governed by common law principles |
| Registration on Title | A Notice of Lease should be registered for leases exceeding 3 years to protect tenant priority rights. | Land Titles Act |
| Lease Invalidity — Oral Long-Term Lease | A lease longer than 3 years may be void unless it is written and signed. | Statute of Frauds, R.S.O. 1990, c. S.19, s. 4 |
| Lease Invalidity — 21-Year Rule | A lease or renewal option of a part of a lot of land (not a whole building or registered subdivision lot) exceeding 21 years is void ab initio without Planning Act consent if the landlord retains an interest in abutting land. | Planning Act, R.S.O. 1990, c. P.13, s. 50(3) & 50(5) |
| Lease Invalidity — Lack of Capacity | A lease signed by a minor or mentally incapable person may be voidable. | Age of Law Reform Act, R.S.O. 1990, c. A.10, s. 1; Substitute Decisions Act, 1992 |
| Ontario’s 21-Year Lease Trap | Leases of a portion of a building (e.g., retail shop, office suite) are structurally exempt from the 21-year statutory prohibition under established Ontario case law. | Planning Act, R.S.O. 1990, c. P.13; Subway Franchise Systems of Canada, Inc. v. Wael Amjad Corporation, 2020 ONCA |
| Ontario’s 16th-Day Re-entry Rule | Ontario landlords may change locks after rent is 15 days overdue if the lease allows re-entry rights. | Commercial Tenancies Act, s. 18 |
| Ontario’s Unique Short Forms System | Ontario still uses a dedicated statute interpreting traditional lease wording into full legal covenants. | Short Forms of Leases Act, R.S.O. 1990, c. S.11 |
Many Ontario business owners are surprised to learn how strict some commercial lease rules really are. One of the biggest hidden risks is Ontario’s “21-year trap.” A lease that looks safe on paper can become legally void if renewal options push the total term beyond 21 years without proper municipal approval. I’ve seen business owners spend years building a location only to discover major legal problems because this rule was overlooked.
Another critical mechanism is the statutory right of re-entry under Section 18(1) of the CTA. If rent remains unpaid for 15 clear days, the landlord may legally re-enter and change the locks without prior notice, unless the lease alters this timeline. ‘Clear days’ mean you exclude both the day the rent was due and the day the locks are changed. If rent is due on the 1st, it is not 15 clear days overdue until the midnight of the 16th, allowing lawful re-entry only on the 17th. Premature re-entry constitutes illegal eviction and exposes the landlord to massive damages for business interruption in the Ontario Superior Court of Justice.
The written lease requirement also matters more than people realize. A long-term verbal lease can create serious enforcement problems and may not fully protect either party in court. Small drafting mistakes in commercial leases can lead to expensive disputes, lost business locations, or unexpected financial liability later.
To avoid these problems, download the free Ontario Commercial Lease Agreement template and review every clause carefully before signing.
When Do You Need a Commercial Lease in Ontario?
You need this agreement anytime you rent a space for business use.
Common situations:
- Opening a café, salon, or retail shop
- Renting an office for your company
- Expanding your business to a new location
- Leasing a warehouse or storage unit
- Renting part of a commercial building
Real example:
A small bakery rents a shop in a plaza. The lease defines rent, allowed use (only bakery), and who pays maintenance. Without this, confusion can lead to legal issues.
Free Ontario Commercial Lease Agreement Template
Use this simple template to create your agreement. Fill in the blanks based on your situation.
This template is a basic starting point. For complex leases, always review carefully or consult a professional.
Key Clauses Every Commercial Lease Must Include
Lease Term & Renewal Options
- Fixed term (e.g., 3 or 5 years)
- Option to renew
- Clear renewal conditions
Tip: Always include renewal rights to avoid losing your business location.
Rent, Additional Costs & Increases
In most commercial leases, rent has two parts:
- Base rent (fixed monthly amount)
- Additional rent (TMI) → Taxes, Maintenance, Insurance
Also check:
- Rent increase clauses
- Annual escalation percentage
Many tenants forget TMI costs and face higher expenses later.
Permitted Use Clause
This defines what business activities are allowed.
Example:
- “Retail bakery only”
- “Office use only”
If you want to expand later, this clause can restrict you.
Maintenance & Repair Responsibilities
Clearly divide who handles:
- Repairs
- Cleaning
- Structural maintenance
Disputes often happen here if not clearly written.
Assignment & Subleasing
This clause answers:
- Can you transfer the lease?
- Can you sublet to another business?
Important if your business grows or closes.
Default & Termination Rules
This explains:
- What happens if rent is not paid
- Penalties
- Eviction process
Under Ontario law, landlords can act quickly in commercial leases compared to residential ones.
For business properties, this commercial lease agreement template differs from the residential lease format but still requires compliance with Ontario lease laws. You should also understand how to draft a lease agreement properly and review lease agreement fundamentals. Supporting documents like a rent receipt may still apply.
Is a Commercial Lease Legally Valid in Ontario?
Yes. A commercial lease is legally valid if:
- Both parties agree
- Terms are clear
- It is signed
A verbal agreement can be valid, but it is risky.
Best practice: Always use a written lease.
Unlike residential leases:
- No standard government form required
- Not fully protected under the RTA
- Governed mainly by contract law
Ontario-Specific Rules You Should Know
Here are key facts many people miss:
- Commercial leases are not protected like residential leases
- There is no rent control
- Terms are based on agreement (freedom of contract)
- Zoning laws must allow your business type
Example: You cannot open a restaurant in a space zoned only for offices.
How to Fill Out the Commercial Lease Template (Step-by-Step)
Follow these simple steps:
Step 1: Enter Correct Legal Names
- Use registered business name
- Include full legal names
Step 2: Clearly Describe Property
- Full address
- Type of space
Step 3: Define Rent Structure
- Base rent
- Additional costs (TMI)
Step 4: Add Permitted Use Carefully
- Be specific
- Think about future expansion
Step 5: Review Termination Clauses
- Exit options
- Penalties
Step 6: Sign and Keep Copies
- Both parties must sign
- Keep a copy for records
Common Mistakes to Avoid
Many tenants and landlords make these errors:
- Not defining additional rent (TMI)
- Ignoring permitted use restrictions
- No exit clause
- Not checking zoning laws
- Signing without negotiation
Tip: Always read the lease slowly before signing.
Commercial Lease vs Residential Lease
| Feature | Commercial Lease |
Residential Lease
|
| Law Coverage | Contract Law |
Residential Tenancies Act
|
| Rent Control | No | Yes |
| Flexibility | High | Limited |
| Tenant Protection | Low | High |
Risks & Disputes in Commercial Leasing
Common issues include:
- Rent increase conflicts
- Maintenance disputes
- Early termination penalties
- Misuse of property
Tip: Clear clauses reduce legal problems.
FAQs
Is a commercial lease legally required in Ontario?
No, it is not legally required in Ontario. However, having a written lease is strongly recommended because it clearly defines rights, responsibilities, and protects both landlord and tenant in case of disputes.
Can rent be increased anytime?
Yes, rent can be increased if the lease agreement allows it. In Ontario, commercial properties are not subject to rent control, so terms are mainly decided by what both parties agreed in the lease.
Can I break a commercial lease early?
You can only break a commercial lease early if the agreement includes a clause for it or if both landlord and tenant mutually agree. Otherwise, you may face penalties or be responsible for remaining rent.
Who pays property taxes in commercial leases?
In most commercial leases, tenants pay property taxes through TMI (Taxes, Maintenance, and Insurance). However, this depends entirely on what is written in the lease agreement.
Do I need a lawyer for a commercial lease?
Hiring a lawyer is not mandatory, but it is helpful, especially for complex or high-value leases. A lawyer can review terms and help avoid costly mistakes or misunderstandings.
