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Delayed Payment Penalties:
Terms That Are Unlawful and Unenforceable
Last Updated: August 23 2026
Question: Can a company charge an illegal late fee in Ontario and what should I do if they do?
Answer: In Ontario, a late fee can be an illegal penalty if it functions like interest on a customer’s overdue balance and effectively pushes the rate beyond the Criminal Code limit of 60% per annum, which is treated as a criminal act under Criminal Code, R.S.C. 1985, c. C-46, s. 347 Courts will look at substance over labels, so a “late fee” that really is interest disguised as a fee may be unenforceable, including situations like Garland v. Consumers' Gas Co., [1998] 3 S.C.R. 112 A genuine disbursement cost tied to collections may be treated differently, per De Wolf v. Bell ExpressVu Inc., 2009 ONCA 644 If you are being charged a late fee that looks like high-rate interest, gather your contract and billing history, request the fee basis in writing, and get a paralegal’s review at (416) 229-1479 with Civil Litigations Paralegal Services.
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When Is a Late Fee An Illegal Penalty
Business owners often attempt to encourage prompt payment by imposing delayed payment penalties (late fees) upon those who fail to pay on time. Unfortunately, contracts may be deemed unlawful and therefore unenforceable when the contract is written in such a way as to impose, or appear to impose, an improper late fee. Commonly, the late fee calculates to an amount that violates the Criminal Code, R.S.C. 1985, c. C-46, section 347, whereas charging an interest rate beyond sixty (60%) percent per annum is deemed a criminal offence. A contract prescribing an interest rate that exceeds the sixty (60%) percent is an illegal contract; Garland v. Consumers' Gas Co., [1998] 3 S.C.R. 112; albeit, if the contract contains a severability clause, then such a clause may preserve the complete contract from becoming void.
While a business may attempt to disguise interest as a late fee, courts will view a late fee for what a late fee is - an interest charged as an additional amount of money due, and arising from, the extension of credit for an outstanding balance of monies owed. An exception applies if it is shown that the late fee genuinely correlates to the recovery of a disbursement cost incurred in the collection of the debt rather than as an additional fee correlated to the further advancement of the debt; De Wolf v. Bell ExpressVu Inc., 2009 ONCA 644; Garland, supra.
As an example, consider a business that imposes a ten 00/00 ($10.00) dollar late fee when a monthly payment of one hundred 00/00 ($100.00) is overdue by seven (7) days. This late fee actually calculates as a ten (10%) percent additional charge upon the actual amount due. This ten (10%) percent late fee imposed upon a one week overdue account produces an exorbitant, and unlawful, five hundred twenty (520%) percent annual interest rate. Note that the fact that this interest appears lower, and actually does calculate lower, over a greater period of time, it is the trigger date that causes the unlawfulness. While the $10.00 late fee charged on the 7th day is unlawful, it might appear that if six months later the same $10.00 is still outstanding that the amount, by then, is a lawful twenty (20%) percent interest; however, the very fact that the amount was unlawful when originally imposed continues to make the amount unlawful. What was at first unlawful fails to become lawful.
Conclusion
When an agreement contains a clause for late fees or other form of delayed payment penalty, such is viewed as an attempt to charge interest on monies due. Where the late fees, as a disguised interest, calculate to an interest rate beyond the legally allowable interest rate, the late fees are viewed as unlawful. Furthermore, even if the interest rate may be legal, late fees or a payment penalty that goes beyond the costs of recovering the genuine amount due are, generally, deemed unenforceable.
NOTE: A significant number of inquiries featuring “lawyers near me” or “best lawyer in” typically indicate an urgent requirement for effective legal representation rather than a certain professional designation. In Ontario, licensed paralegals are governed by the same Law Society that supervises lawyers, granting them the authority to represent clients in specific litigation matters. Central to that role are advocacy, legal analysis, and procedural expertise. Civil Litigations Paralegal Services offers legal representation within its licensed framework, focusing on strategic positioning, evidence preparation, and compelling advocacy designed to attain efficient and favourable outcomes for clients.
