The Contractor’s Shield: Why Your Service Agreement Needs a 'Limitations' Clause

As a business owner, there is nothing more frustrating than completing a job—whether it’s sealing a driveway, clearing a parking lot of snow, or delivering a cross-border load—and then chasing the payment. Many Ontario contractors rely on handshakes and good faith, but the law has a strict "expiration date" on your right to get paid.

The 2-Year Trap: The Limitations Act, 2002

In Ontario, the law is clear: you generally have two years from the day you "discovered" a debt to start a legal proceeding (like a Small Claims Court case). If you wait until two years and one day, the court will likely dismiss your claim entirely.

For a contractor, "discovery" usually happens the moment your invoice becomes overdue. If you’ve been "being nice" to a client for 24 months, you might have unintentionally signed away your right to sue.

How to 'Reset' the Clock

One of the most powerful tools in a small business owner's arsenal is the Written Acknowledgement. Under Section 13 of the Limitations Act, the two-year clock can be "restarted" if the person who owes you money acknowledges the debt in writing and signs it.

The Strategy: If a client is six months behind, don't just call them. Get them to send an email or sign a simple document that says: "I acknowledge I owe [Your Company] $5,000 and I plan to pay by [Date]." The moment they send that, your two-year window starts all over again.

Three Must-Haves for Your 2026 Service Agreements

To protect your cash flow, every service agreement should include these three "Shields":

Clear Payment Terms: Don't just say "payable upon completion." Use "Net 15" or "Net 30" so the "Discovery" date for the limitation period is undeniable.
Interest on Overdue Accounts: Under the Courts of Justice Act, you are entitled to pre-judgment interest, but you can set your own (reasonable) rate in your contract.
The 'Notice of Default' Clause: State that if payment isn't received within X days, it constitutes a formal default. This creates a clear paper trail for the court.

The 'Know the Law' Bottom Line

Your time and your equipment have value. Don't let a "slow-pay" client turn into a "no-pay" client because you let the calendar run out. By the time you realize you need a paralegal, it might be too late if you haven't protected your timelines.

Important Legal Disclaimer

KnowTheLaw.ca is a research and information repository only. This article is for educational and research purposes and does not constitute legal advice. John Marshe and Kyra Eves are legal students and are not currently licensed to provide legal advice or represent clients. Debt collection and contract law involve complex variables, including the Consumer Protection Act and the Commercial Tenancies Act. If you are struggling to collect a significant debt, we strongly recommend consulting a licensed professional.