Companies are supposed to protect their owners from business debts. Incorporate a trucking outfit or a restaurant in Brampton, and if the company runs out of money, its creditors generally cannot chase the shareholders’ homes and savings. That protection is the very reason lenders, landlords, equipment suppliers, and factoring companies so often ask for one extra signature: a personal guarantee.
When things go wrong, that signature changes the conversation. Creditors see a route around an empty corporate bank account. Owners may discover that a page they signed years ago, in a stack of closing documents, now exposes their own assets. Each side has a real interest in knowing exactly what the document says and how Ontario law treats it.
The material below is general information about guarantees in Ontario, and it should not be taken as legal advice on any specific guarantee or debt. Small differences in wording can produce entirely different results.
What a Guarantee Is
A guarantee is a promise to answer for someone else’s debt or obligation if that party does not perform. There are three parties involved: the creditor, the principal debtor (often the company), and the guarantor. The guarantor’s liability usually depends on the principal debtor’s obligation, though well-drafted documents try to make the guarantor’s liability more independent of it.
Some documents are also labelled “indemnity,” or combine a guarantee with an indemnity. An indemnity is a primary promise to cover a loss and can sometimes survive defects in the main debt that would otherwise end a guarantee. Which label is used, and more importantly how the operative clauses work, can matter when a defence is raised.
It Must Be in Writing and Signed
Section 4 of Ontario’s Statute of Frauds says that no action may be brought to charge a person on a special promise to answer for the debt, default, or miscarriage of another person, unless the agreement, or some memorandum or note of it, is in writing and signed by the party to be charged or an authorized person. A spoken assurance such as “don’t worry, I’ll cover it” is generally not enough on its own to enforce a guarantee.
Creditors should go beyond that bare minimum, ensuring that the document clearly identifies the guarantor, the debtor, the debt covered, and the fact that the signature is given personally. A signature block that says “Priya Sharma, President” with a company name above it can leave genuine doubt about whether she signed only for the company. An owner in that position may have a strong argument, while a creditor may need to rely on other clauses or evidence to answer it.
The Wording Sets the Limits
Courts interpret a guarantee according to its language and the surrounding circumstances, and clear language is generally enforced. Read each of these items closely, whether you are collecting or defending:
- Scope. Is the guarantee limited to one loan or lease, or does it cover “all present and future indebtedness”? A continuing, all-indebtedness guarantee can capture credit that was extended long after signing.
- Cap. Is there a stated maximum? Does the cap include interest and legal costs, or are they on top?
- Demand. Must the creditor make written demand? Is there a required notice address or form?
- Order of pursuit. Must the creditor first pursue the company or any security? Many guarantees say it need not.
- Waivers. Standard clauses often allow the creditor to change terms, grant extensions, or release security without releasing the guarantor.
- Duration. Can the guarantor give notice to stop further liability, and does that cover existing debts?
- Joint and several liability. Where several people signed, can the creditor pursue any one of them for the whole amount?
- Costs. Does the document require payment of legal costs on a higher scale?
If several versions of a document exist, or a signed page has been separated from the rest, gather them all. A creditor’s first step should be to locate the signed original, plus every amending agreement, since it will have to prove what was agreed.
What a Creditor Needs to Show
A typical enforcement file comes together in this order.
- The debt. Evidence of the underlying loan, lease, or supply agreement, and a clear account of how the amount was calculated, with payments, interest, and charges.
- The default. Records showing how and when the principal debtor failed to pay.
- The guarantee. The signed document, along with evidence linking the signature to the guarantor.
- Compliance with conditions. Proof of any demand or notice that the guarantee requires, delivered in the form it specifies.
- The amount claimed against the guarantor, after any cap, and after applying any recovery from security or other sources.
A careful statement of account matters more than people expect. If the amount claimed is loaded with unexplained fees or an interest rate that cannot be reconciled with the agreement, the guarantor gets an easy way to contest everything. Section 128 of the Courts of Justice Act addresses prejudgment interest as a general rule, while a contract may provide its own rate.
Demand Letters and the Limitation Clock
A formal demand does two jobs. It meets any contractual requirement, and it often produces a response that shows whether a real dispute exists. A clear letter identifies the debt, the default, the amount, the guarantee relied upon, and the payment deadline, and it attaches supporting documents.
Limitation periods need care here, and the answer depends on the document’s wording. The basic rule under section 4 of the Limitations Act, 2002 is two years from discovery of the claim. Section 5(3) adds a specific rule for demand obligations: the day on which injury, loss, or damage occurs is the first day on which there is a failure to perform, once a demand for performance is made.
Where a guarantee is truly payable on demand, then, the clock generally starts with non-payment after a demand. That does not mean a creditor can wait indefinitely. If the guarantee is worded so that liability arises upon the debtor’s default rather than on demand, the clock might start much earlier. Ontario also has a 15-year ultimate limit in section 15, and section 22 restricts how the parties can vary limitation periods, with special rules for business agreements. Section 13 allows an acknowledgment of a liquidated debt to restart the clock in some circumstances, and that also has specific requirements. Creditors should diarize conservatively, and guarantors should check dates before assuming any claim is too late or still alive.
Common Defences
Material change without consent. The Supreme Court of Canada’s decision in Manulife Bank of Canada v. Conlin, a 1996 case, confirms the long-standing principle that a guarantor can be released if the principal contract is materially altered without the guarantor’s consent. Changes in interest rate, maturity, or the credit limit may qualify, depending on the facts. In that case, the court read the guarantee strictly against the lender.
Many modern guarantees, however, specifically allow such changes without releasing the guarantor, and Ontario courts have enforced clear waiver language according to its terms. The argument may be worth raising, but it needs a close reading of the clause.
Lack of proper signature or capacity. A forged signature, or a signature given only on behalf of the company, is a real defence if it can be proved. Capacity problems can also come into play, though that is less common.
No independent legal advice, duress, or unconscionability. A spouse who signed a business guarantee at the kitchen table without understanding it, and without advice, may raise these arguments, particularly where there was pressure from the other spouse or the lender. Success is far from automatic. Many sophisticated business owners cannot credibly use them, and a signed acknowledgment of legal advice may make it harder still. Lenders in these cases should think hard about whether to insist on independent legal advice, and guarantors should take it before signing.
Misrepresentation. If the creditor materially misled the guarantor about what the document meant or about the debtor’s position, there may be a basis to challenge the guarantee. Standard “entire agreement” clauses may complicate that argument.
The debt is not valid or is overstated. Because guarantee liability generally depends on the underlying debt, a guarantor may raise problems with that debt. Those may include payments not credited, a default not actually made out, or a set-off belonging to the principal debtor, though the wording may limit these arguments.
Failure to protect security. If the creditor has lost or impaired collateral, such as by failing to register a security interest, the guarantor may argue for a reduction or release. Guarantee wording frequently waives that as well.
Limitation periods. As noted above, timing may be the simplest defence if it is available.
When the Company Is Insolvent
Insolvency of the principal debtor often triggers a call on the guarantee. Generally, the company’s bankruptcy does not end a guarantor’s exposure. Section 179 of the Bankruptcy and Insolvency Act states that an order of discharge does not release a person who, at the date of bankruptcy, was a surety for the bankrupt. In a corporate bankruptcy, the guarantor is typically still on the hook while the company’s own affairs are wound up.
A guarantor who is called upon may then have rights of their own. A guarantor who pays the debt may be entitled to recover from the principal debtor and to seek contribution from co-guarantors. Under the Mercantile Law Amendment Act, a person who pays another’s debt may be entitled to have assignment of the creditor’s rights and securities. If the guarantor is a business owner with a shareholder agreement, it may also be worth checking whether that contains any contribution clauses. Guarantors facing serious personal exposure may also need advice from a licensed insolvency trustee about their own options.
Court Options and Strategy
If the amount sought is $50,000 or less, a claim on a guarantee can be brought in Small Claims Court, which sits in Brampton at 7755 Hurontario St. Larger amounts go to the Superior Court of Justice. Where the documents are clean and the facts are not truly in dispute, a creditor may seek summary judgment under Rule 20 of the Rules of Civil Procedure. Claims based on a guarantee often suit that process. A guarantor who ignores a claim may also face default judgment, so a served claim should never be left unanswered. Our contractual litigation page discusses this kind of work in more detail.
Practical considerations should guide the strategy as much as legal merits. For a creditor:
- Run property and asset searches, as your budget permits, before spending money on litigation.
- Consider where the guarantor’s assets are, including any joint ownership of a home with a spouse, and whether a mortgage already has priority.
- Consider a negotiated payment arrangement with security, which may be worth more than a judgment that takes time to enforce.
For a guarantor:
- Do not ignore the demand, and do not move assets to a relative in response to it. A transfer in those circumstances can be attacked, and it may damage your credibility.
- Ask for the full statement of account and all documents you signed.
- Consider a settlement before costs and interest grow, particularly where the guarantee provides for full recovery of legal fees.
Be careful with the emails and texts you send during this period. A written acknowledgment of the debt can have legal consequences. So can a statement that you have no assets, if it later proves to be untrue. It is usually best to have a single person, ideally your lawyer, handle communications once a dispute has begun.
If You Have Not Signed Yet
The best time to think about a personal guarantee is before you sign it. Ask for a cap on the amount, a defined end date, a release once the debt has been reduced or a performance milestone has been met, and notice before any increase in the credit facility. Not every lender or landlord will agree, but many will discuss it, particularly for a commercial lease where the risk may reduce over time. Get independent advice and be sure you understand the worst-case result, including the effect on your home.
If you are on either side of a guarantee now, gather the signed document, all related agreements, the statement of account, and any demand letters, then speak with someone before a deadline passes. You can contact the firm to arrange a review, and our civil litigation page provides more on how disputes of this kind are generally approached.
A guarantee is a short promise that can carry a long tail of consequences. Reading it closely, tracking the dates, and dealing with the demand promptly are the three things most likely to protect you, whichever side of the signature you are on.