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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Business & Commercial Law Ontario » Business Litigation Guides Ontario » What Are the Costs to Defend a Small Claims Court B2B Lawsuit in Ontario?

What Are the Costs to Defend a Small Claims Court B2B Lawsuit in Ontario?

11 Jun 2026 5 min read No comments Business Litigation Guides Ontario
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Defending a Small Claims Court B2B lawsuit in Ontario generally costs between $1,500 and $5,000 CAD if you hire a local paralegal or lawyer. While the maximum claim limit is $35,000 CAD, the Courts of Justice Act strictly caps the legal fees you can recover from the losing side at just 15% of the total claim amount.

Being sued by a vendor, supplier, or former corporate client can be an incredibly stressful event for any business owner. If your company operates in Toronto, Ottawa, or Mississauga, you may eventually face a Business-to-Business (B2B) dispute over an unpaid invoice, a cancelled service, or a minor breach of contract.

When the financial amount in dispute is $35,000 CAD or less, the case will be heard in the Ontario Small Claims Court, which is a branch of the Superior Court of Justice. This court is designed to be faster and less formal than higher courts, but defending a claim still requires strict adherence to legal deadlines. Navigating the procedural rules and understanding the financial costs of defending your business is essential to avoid a costly default judgment. 💼

Step-by-Step Process in Ontario Small Claims Court

The Small Claims Court process in Ontario is heavily form-driven. Whether you run a small bakery in Hamilton or a tech startup in Markham, the rules are identical across the province. Here is how a business generally defends a commercial lawsuit.

Step 1: Review the Plaintiff’s Claim

Your involvement begins when your business is officially served with a Plaintiff’s Claim (Form 7A). This document outlines exactly who is suing you, how much money they want, and the legal reasons behind their lawsuit.

It is vital to look at the date you were served. In Ontario, you typically have exactly 20 days from the date of service to file your official response. If you miss this deadline, the plaintiff can note you in default, meaning you automatically lose the case and they can begin garnishing your business bank accounts. ⌛

Step 2: Draft and File a Defence (Form 9A)

To fight the lawsuit, you must draft a Defence (Form 9A). This is where you explain your side of the story. You must clearly state which facts from the Plaintiff’s Claim you agree with, which you deny, and why your business does not owe the money.

If the plaintiff actually owes your business money (for example, if they delivered defective goods and you suffered losses), you can also file a Defendant’s Claim (a counterclaim) at this time. Many business owners hire a law firm or a licensed paralegal to ensure these forms are drafted correctly without emotional language. 📜

Step 3: Attend the Mandatory Settlement Conference

Once the Defence is filed, the court will schedule a Settlement Conference. This is a mandatory, private meeting between both parties, their legal representatives, and a Deputy Judge.

The goal is to resolve the B2B lawsuit without going to trial. The Deputy Judge will listen to both sides, offer a frank opinion on the strengths and weaknesses of the case, and encourage a compromise. Most commercial disputes in Ontario are settled at this stage, saving both sides thousands of dollars in further legal fees. 🤝

Step 4: Prepare for and Attend the Trial

If no settlement is reached, the case moves to a public trial. You must gather all your documentary evidence, such as signed contracts, email chains, and delivery receipts, and organize them into a Document Brief.

At trial, you or your lawyer will have the opportunity to call witnesses, present evidence, and cross-examine the plaintiff. The judge will then make a final, binding decision. Because trials require extensive preparation, legal fees increase significantly at this stage. 📑

How Much Does it Cost in Ontario?

Defending a Small Claims Court lawsuit involves court filing fees (disbursements) and professional fees if you hire representation. In Ontario, licensed paralegals are heavily utilized for Small Claims matters because their hourly rates are generally lower than those of a lawyer.

  • Court Filing Fee (Filing a Defence): Approximately $77 to $108 CAD, depending on how frequently you use the court system.
  • Paralegal Fees (Full Representation): Generally $1,500 to $3,500 CAD from start to finish.
  • Lawyer Fees (Full Representation): Generally $3,000 to $7,000+ CAD, depending on the firm’s hourly rate.
  • Cost Awards: Under the Courts of Justice Act, a successful party can only recover up to 15% of the claim’s value in legal fees from the loser (e.g., a maximum of $5,250 CAD on a $35,000 claim).
Representation TypeEstimated Total Cost (CAD)Best Suited For
Self-Representation$150 – $300 (Court fees only)Very small claims under $5,000 where legal fees outweigh the risk.
Licensed Paralegal$1,500 – $3,500Standard unpaid invoices and basic breach of contract disputes.
Corporate Lawyer$3,000 – $7,000+Complex claims near the $35,000 limit involving deep legal interpretation.

Because of the strict 15% cap on recovering legal fees, spending $10,000 CAD on a lawyer to defend a $15,000 CAD claim is a poor financial decision. Always weigh the legal costs against the financial risk of the lawsuit.

How Long Does the Process Take?

The Small Claims Court system is designed to be swift, but post-pandemic backlogs still exist. From the moment you file your Defence, it typically takes 3 to 6 months to get a date for your Settlement Conference.

If the case does not settle, waiting for a final trial date can take an additional 6 to 12 months. Therefore, a fully contested commercial lawsuit in Ontario generally takes between 9 and 18 months to resolve entirely. 📅

Frequently Asked Questions (FAQ)

Can I just ignore a Small Claims Court lawsuit?

Absolutely not. If you ignore the claim and fail to file a Defence within 20 days, the plaintiff will obtain a default judgment against your business. They can then legally seize your corporate assets, garnish your bank accounts, or register a lien on your property.

Can my corporation represent itself in court?

Yes. In Ontario Small Claims Court, an incorporated business can be represented by a director, officer, or authorized employee. However, given the legal complexities, many businesses prefer to hire a paralegal or lawyer.

What happens if the plaintiff owes me more than $35,000 CAD?

If you wish to file a Defendant’s Claim (counterclaim) for more than $35,000 CAD, you must either waive your right to collect the amount over the limit, or apply to have the entire lawsuit transferred to the higher Superior Court of Justice.

Will a Small Claims judgment ruin my business credit score?

Yes. Unpaid court judgments are public records and are routinely reported to credit bureaus like Equifax and TransUnion. This can severely damage your company’s ability to secure business loans, commercial leases, or vendor financing in the future.

Is a Settlement Conference legally binding?

The discussions during the conference are “without prejudice,” meaning they cannot be used against you at trial. However, if both parties agree to a settlement and sign a Terms of Settlement document, that agreement becomes legally binding and enforceable.

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