Ontario Commercial Late Fees: Rules, Enforceability, Interest

Unlike residential tenancies where late fees are completely prohibited, Ontario commercial landlords may charge late fees and default interest — provided these terms are clearly set out in the lease agreement. The Commercial Tenancies Act (CTA), effective 1 January 1990, does not restrict late fee provisions, making the lease the governing document.

Commercial vs. Residential Late Fees

Common Late Fee Provisions

1. Flat Late Fee

A fixed dollar amount charged when rent is late:

• Example: "$500 for any rent payment received after the 5th of the month"
• Simple to administer and understand
• Must be clearly stated in the lease to be enforceable

2. Percentage-Based Late Fee

A percentage of the overdue amount:

• Example: "2% of any rent payment not received by the due date"
• More proportional to the amount owed
• Common range: 1-5% of the overdue amount

3. Default Interest

Ongoing interest charged on unpaid amounts:

• Example: "Interest at the rate of 12% per annum (1% per month) on all overdue amounts"
• Accrues daily until the amount is paid
• Common commercial rates: 8-18% per annum

4. Combined Provisions

Many leases include both a late fee and default interest:

• Late fee for the initial late payment
• Default interest for ongoing non-payment

Enforceability Considerations

The Penalty Doctrine

Canadian courts may invalidate late fee clauses that are considered penalties rather than genuine liquidated damages:

Interest Rate Limits

• The federal Interest Act requires that interest rates expressed as a percentage must be stated as an annual rate
• If the rate is expressed only as a monthly rate (e.g., "2% per month") without also stating the annual equivalent (24%), it may be reduced to 5% per annum by the court
• Always express rates both ways: "2% per month (24% per annum)"

Criminal Interest Rate

• Under the Criminal Code (§347), interest rates exceeding 60% per annum (effective annual rate) are criminal
• This includes all charges, fees, and penalties that function as interest
• Ensure combined late fees and interest do not exceed this threshold

Grace Periods

Commercial leases commonly include (but are not required to have) a grace period:

If no grace period is specified, rent is due on the date stated in the lease and is late the following day.

NSF (Returned Cheque) Charges

For commercial tenancies:

• Landlords may charge a flat NSF fee as specified in the lease
• Common amounts: $50-$250 per returned cheque
• Unlike residential tenancies, there is no restriction to the actual bank charge
• The fee should be reasonable and clearly stated in the lease

Remedies for Persistent Non-Payment

Beyond late fees, commercial landlords have stronger remedies than residential landlords:

1. Demand letter — Formal demand for payment with deadline
2. Default notice — Trigger the lease default provisions
3. Re-entry (lock change) — Available on day 16 of non-payment (CTA remedy)
4. Distress — Seize and sell tenant's property to cover arrears
5. Rent acceleration — Entire remaining lease rent becomes due immediately (if in lease)
6. Court action — Sue for arrears and damages in Superior Court

See our Commercial Eviction ProcessPreview unavailable guide for details.

Best Practices for Ontario Commercial Landlords

1. Include clear late fee provisions — Specify the amount, trigger, and grace period
2. Express interest rates annually — Comply with the Interest Act to avoid rate reduction
3. Keep fees reasonable — Excessive fees risk being struck as penalties
4. Monitor the 60% criminal threshold — Ensure combined charges do not exceed this limit
5. Apply fees consistently — Selective enforcement may waive your rights
6. Document all late payments — Maintain a detailed payment ledger
7. Communicate early — Contact tenants promptly when payments are late

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How Landager Helps

Operating in Ontario's commercial rental market requires strict adherence to lease terms and the Commercial Tenancies Act (CTA). With commercial tenancies relying heavily on the exact wording of the lease, tracking late payments and enforcing default interest accurately is critical. Landager simplifies Ontario commercial property management by automating rent tracking, calculating percentage-based late fees or default interest, and maintaining detailed digital payment ledgers. Whether you are managing retail units in Toronto or multi-tenant commercial spaces in Ottawa, Landager provides the structural framework and record-keeping tools necessary to navigate the CTA with confidence and enforce your lease agreements efficiently.