If you've been served with a small claim in Mississauga, you have 20 calendar days to file a Defence (Form 9A) — filing is free and immediately protects you from default. Your realistic options: settle early, defend on the merits, admit part and dispute part, propose payment terms, or counterclaim if the plaintiff owes you money. The case is administered at the Davis Courthouse serving Peel, and a filed Defence routes it to a mandatory settlement conference where most files resolve. Ignoring the claim leads to default judgment and enforcement — the one outcome with no upside.
- You have 20 days from service to file a Defence — filing is free and stops default.
- Check insurance and identity first: a policy may defend you, and wrong-defendant is a real defence.
- The Defence form supports partial admissions and payment proposals — not just all-out war.
- A counterclaim puts what the plaintiff owes you into the same case, netted at the end.
- Most Peel files end at the settlement conference — a credible, documented Defence is negotiating capital.
- Already in default? Move fast — set-aside motions reward speed above all.
The Day You're Served
Read the claim forensically, not emotionally. Who exactly is suing — a person, a numbered company, a business you've never heard of? What precisely do they say happened, and what documents did they attach? What is the number, and how is it built? Note the date you were served — every deadline runs from it — and preserve the envelope and everything inside. Then observe the two prohibitions that protect every defendant. Don't call the plaintiff to vent: every word becomes evidence, and angry defendants routinely argue themselves into admissions. Don't assume a weak claim dies on its own: claims never die of neglect — they mature into default judgments. Mississauga cases are administered at the Davis Courthouse serving Peel (the system's full geography is in our Mississauga guide), and the machine that just started turning is entirely manageable — from inside the process, never from outside it.
First-Hour Checks: Identity & Insurance
Two checks belong in the first hour. Are you even the right defendant? If the plaintiff contracted with your corporation but sued you personally — or sued a trade name, the wrong family member, or a business you sold years ago — that mismatch is a genuine defence, not a technicality to feel sheepish about; flag it now because it shapes everything you file. Does insurance respond? Claims arising from property damage, a vehicle, your home, or business operations frequently fall under a policy whose insurer has both the duty and the budget to defend — but policies demand prompt notice, and a defendant who quietly litigates for months before telling their insurer can forfeit coverage that would have paid for everything. Send the claim to your broker or insurer the week you are served, in writing. Neither check costs anything; either can transform the file before you've written a word of Defence.
The 20-Day Clock
From service, you have 20 calendar days to file a Defence. Miss it, and the plaintiff can have you noted in default — after which you lose the right to notice of steps in the case — and for fixed-sum claims can obtain default judgment from the clerk without any hearing. Weekends count in the middle; a deadline landing on a weekend or holiday rolls to the next court day — compute yours precisely with the Small Claims deadline calculator. The strategic point outranks the arithmetic: the Defence is filed online, costs nothing, and instantly converts you from a target into a party with rights — disclosure, a conference, a hearing. Whatever else remains uncertain on day three — whether to settle, how strong your story is, whether to counterclaim — file within the window. Every good outcome available to you sits on the far side of that one free filing; the only outcome on the near side is default.
Your Five Real Options
Every served defendant holds the same menu. One — settle now: where the debt is real, early settlement buys discounts and instalment terms the judgment stage never offers; put any deal in writing with a release. Two — defend on the merits: the work wasn't defective, the contract said otherwise, the amount is inflated. Three — admit part, dispute part: the Defence form explicitly supports partial admissions — pay what is owed, fight what is not, and gain credibility doing it. Four — admit but propose terms: an instalment proposal can be filed with the Defence, and unchallenged terms take effect — often the dignified exit for a genuine debt in a tight month. Five — counterclaim: where the plaintiff owes you, the claims belong in one proceeding (two sections down). The free defending-a-claim wizard walks the decision tree against your facts — and the honest first question is always the same: what would a stranger with both files think this case is actually worth?
Writing a Defence That Works
The Defence (Form 9A) is your side of the story, told to the deputy judge who will eventually read both documents side by side. The craft mirrors good claims: respond to the allegations point by point — admit what is true, deny what is not, and say what actually happened, with dates; attach your documents — the texts showing the deadline was moved, the photos of completed work, the e-transfer receipts; and keep it factual — a Defence that calls the plaintiff a liar without exhibits reads worse than one that quietly attaches the contradiction. File online, keep your stamped copy, and calendar what follows. Resist two temptations: the essay (deputy judges reward structure, not length) and the scorched-earth denial of things you plainly did (admitting the true parts is what makes your denials credible). The fuller drafting guide — including the provincewide procedure — is our defending-a-claim walkthrough.
The Defences That Actually Win
Across Peel files, winning defences cluster reliably. Performance — the work was done properly: photos, sign-offs, the inspector's report. Payment — the debt was paid or partly paid, with receipts and transfer records. Terms — the contract allocated this risk differently than the claim pretends; the change-order was authorized in that text right there. Quantum — liability may exist but the number is inflated: repair quotes triple the market, consequential losses never incurred. Wrong defendant — the contract was with the corporation, not you personally (Mississauga's trade-name tangle cuts both ways — see our business-naming guide). Limitation — the claim was discovered more than two years before filing: a complete defence that courts apply strictly. What rarely works: indignation, character attacks, and technicalities deployed against an obviously owed debt — deputy judges price those quickly, and credibility spent there is unavailable later when you need it on the contested facts.
Counterclaims: Suing Back
If the plaintiff owes you money — from the same mess or otherwise — the Defendant's Claim puts your claim into the same case: filed within the deadline after your Defence (with its own $108 fee), served, and heard by the same deputy judge, with the proven amounts set off against each other and judgment going to whoever nets ahead. Peel's classic pattern is the renovation file: the contractor sues for the final invoice; the homeowner counterclaims for deficiencies — and the economics of the whole case flip (the pattern from both chairs is in our Mississauga contractor guide). Model your net position with the counterclaim calculator, and mind the counterclaim's own hygiene: it is a real claim needing real evidence and its own limitation analysis. A genuine counterclaim transforms your negotiating position; a tactical, evidence-free one burns exactly the credibility your Defence was built on.
The Conference & Your Leverage
A filed Defence routes the case to the mandatory settlement conference — before a deputy judge who reality-tests both sides, in the session where most Mississauga files find their exit (our Mississauga conference guide is the preparation manual). Understand the quiet leverage defendants hold there: plaintiffs face the time-cost of trial, the risk of losing, and — the pressure they rarely admit — collection risk, because a judgment they can't enforce is worth less than a smaller settlement they can bank. A credible Defence with exhibits converts that leverage into numbers. Files that survive the conference proceed toward trial (the defendant's version of that day is in our trial guide), and a Rule 14 written offer — offering what the case is honestly worth — protects you on costs: beat your own offer at trial and the costs consequences swing your way, mechanics the settlement offer wizard works through against your specifics.
If You've Already Missed the Deadline
Noted in default — or worse, discovering a default judgment through a frozen account or garnished pay — is serious but frequently repairable. The remedy is a motion to set aside, and deputy judges decide it on a familiar triad: did you move promptly on learning of the default; is there a reasonable explanation for missing the deadline (defective service is the classic — a claim that never properly reached you supports setting aside everything built on it); and do you have an arguable defence on the merits, shown with some evidence. Speed dominates all three — every week of delay after discovery weakens the motion — and success typically restores the case on terms, returning you to the ordinary track with the garnishment stayed. The full anatomy, from both sides, is our Mississauga default judgment guide. Whatever stage you're at — day two, day nineteen, or a month past a judgment you never saw coming — our Mississauga Small Claims team defends across the whole ladder at flat fees, and the first conversation, inside your 20 days or after them, is free.
Frequently Asked Questions
20 calendar days from the day you were served, to file a Defence (Form 9A). Weekends count within the period; a deadline landing on a weekend or holiday rolls to the next court day. After 20 days, the plaintiff can note you in default and pursue judgment without your participation — so file within the window even while you decide everything else.
Default: you're noted in default, lose the right to notice, and for fixed-sum claims the clerk can sign judgment against you without a hearing — followed by enforcement: wage and bank garnishment, writs. Ignoring a claim is the only option with no upside; filing the free Defence preserves every other one.
Filing a Defence is free. A counterclaim (Defendant's Claim) carries a $108 fee. Successful defendants can also recover costs from the plaintiff — including representation costs under the Rule 19.04 framework — which changes the economics of defending a weak claim properly.
Yes — it's a real defence. Corporations are separate legal persons, and a plaintiff who contracted with your company but sued you personally has sued the wrong defendant, absent grounds like a personal guarantee or your own misrepresentation. Raise it in the Defence explicitly; it shapes the whole file.
If the claim touches anything a policy might cover — property damage, vehicles, your home, business operations — yes, in writing, the week you're served. Insurers may owe you a defence (they pay the lawyers), but policies require prompt notice, and late notice can forfeit coverage entirely.
Yes — a Defendant's Claim puts what they owe you into the same proceeding, heard by the same deputy judge, with proven amounts set off against each other. It's the classic move in contractor files (invoice sued, deficiencies counterclaimed). It must be a genuine claim with evidence — tactical counterclaims damage the credibility your Defence needs.
Respond point by point — admit what's true, deny what's not, and state what actually happened with dates — and attach your documents: payment records, texts, photos. Structure beats length, and honest partial admissions make your denials credible. The Defence form also supports proposing payment terms for amounts you genuinely owe.
Your file is administered at the Davis Courthouse serving Peel, but filing is online and settlement conferences — where most cases end — frequently proceed remotely as your notice directs. A representative can also appear for you. Trials that go the distance are the stage most likely to require attendance.
Quantum is a genuine battleground: liability and amount are separate questions, and repair quotes at triple market, consequential losses never incurred, and round numbers without arithmetic all get discounted with the right evidence — comparable quotes, invoices, expert input. Admitting liability while contesting quantum is a coherent, often winning posture.
Often not. A motion to set aside can restore the case if you move promptly, explain the default (defective service is the classic), and show an arguable defence. Speed matters more than anything — act the week you learn of the judgment, and enforcement can frequently be stayed while the motion proceeds.

