Ontario Commercial Security Deposits: Rules, Amounts, and Negotiation

Unlike Ontario's residential market where damage deposits are prohibited, commercial landlords have full flexibility to negotiate security deposits. The Commercial Tenancies Act (CTA) does not regulate deposit amounts, terms, or return timelines — these are governed entirely by the lease agreement.

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed attorney in Ontario for guidance specific to your situation. Information last verified: March 2026.

No Statutory Limits on Commercial Deposits

The CTA does not impose any restrictions on the amount, type, or conditions of security deposits in commercial leases. This means:

Typical Commercial Deposit Amounts

While there are no statutory caps, market practice in Ontario generally follows these ranges:

Forms of Security

Commercial landlords may accept (or require) security in various forms:

Cash Deposit

• Most common form
• Held by the landlord for the duration of the lease
• Applied to damages, unpaid rent, or lease obligations at termination

Letter of Credit (LOC)

• An irrevocable standby letter of credit from the tenant's bank
• Provides the landlord with guaranteed access to funds without holding cash
• Common for larger tenants and longer lease terms
• Can be drawn down by the landlord upon a default, typically with notice requirements
• May include a reducing balance clause (amount decreases over time if the tenant performs well)

Personal or Corporate Guarantees

• A personal guarantee makes an individual (often the business owner) personally liable
• A corporate guarantee from a parent company or related entity
• Often used in addition to a cash deposit or LOC

Combination

• Many commercial leases combine a modest cash deposit with a personal guarantee
• The deposit may be returned after a specified period (e.g., 2-3 years of timely payments)

Deposit Terms to Include in the Lease

Since the CTA is silent on deposits, the lease must clearly address:

1. Amount — Fixed dollar amount or formula (e.g., three months' gross rent including TMI)
2. Purpose — What the deposit covers (rent arrears, damages, restoration costs, operating cost shortfalls)
3. Interest — Whether interest accrues and at what rate
4. Return conditions — When and how the deposit is returned after lease expiry
5. Draw-down rights — When the landlord can use the deposit and replenishment obligations
6. Reduction schedule — Whether the deposit decreases over time for performing tenants
7. Assignment — What happens to the deposit if the lease is assigned

Deposit Return Process

The lease should specify the return process. Common provisions include:

• Return within 30-60 days after the tenant vacates and all obligations are satisfied
• Landlord may deduct for unpaid rent, operating costs, and restoration of the premises
• An inspection is conducted to assess the condition of the premises
• Any remaining balance is returned to the tenant

Best Practices for Ontario Commercial Landlords

1. Document everything — Detailed condition reports at lease commencement and termination
2. Size deposits appropriately — Balance tenant recruitment with adequate financial protection
3. Use letters of credit for larger tenants — More professional and less capital-intensive for the tenant
4. Include clear deposit provisions in the lease — Ambiguity leads to disputes
5. Review personal guarantees carefully — Ensure they survive assignment and lease renewal
6. Consider reducing deposits for proven tenants — Incentivizes timely payment and tenant retention

How Landager Helps

Landager helps commercial landlords track security deposits across multiple properties, manage letter of credit expiry dates, and automate deposit return calculations — keeping your financial interests protected.

Back to Ontario Commercial Property Laws Overview.