Personal Guarantees in B2B Credit: When They Work, When They Fail, and How Canadian Businesses Enforce Them
A corporation only owes what its assets can satisfy. When a business customer stops paying, the unpleasant reality is that the company you sued, won against, or sent to collections may be little more than a numbered shell with no equipment, no receivables, and no real bank balance. That is the moment most credit managers wish they had asked for a personal guarantee at account opening.
A personal guarantee is one of the most powerful tools available to a B2B creditor in Canada. It is also one of the most poorly executed. Many guarantees that businesses rely on cannot actually be enforced when the time comes, either because they were drafted carelessly, signed incorrectly, or never updated as the credit relationship grew. Understanding what makes a guarantee work, and what makes it fail, is essential for any business extending credit terms.
What a personal guarantee actually is
A personal guarantee is a written promise by an individual to pay the debts of another party, usually a corporation, if that party does not pay. It is a separate contract from the underlying credit agreement. The guarantor is not the customer. The guarantor is a person who agrees to stand behind the customer.
This matters for two reasons. First, the guarantee creates a direct cause of action against an individual who has their own assets, their own bank accounts, and their own credit profile. Second, the guarantor's liability does not disappear if the corporation collapses. A corporate bankruptcy ends most of the corporation's obligations. It does not end the guarantor's.
For Canadian businesses extending B2B credit, this combination is the entire point. The corporation may be the customer on paper. The guarantor is the safety net.
Why corporate-only credit is a hidden risk
It is easy to feel comfortable extending credit to a corporation that appears established. A registered business name, a website, a few years of trading history, and a tidy first order can create the impression of substance. None of that guarantees the corporation has assets you can collect against.
Corporations can:
Operate without any meaningful equipment or inventory.
Hold receivables that are pledged to a bank under a general security agreement.
Move money out through related entities, dividends, or shareholder loans.
Wind down operations and leave a shell that owes you money but has no funds to pay.
Limited liability is a legitimate feature of corporate law, not a flaw. It exists to encourage business activity. But it also means that a creditor relying solely on the corporation has accepted whatever risk the corporation chooses to present. A personal guarantee shifts that calculus by giving you a second source of payment if the first one disappears.
What makes a personal guarantee enforceable in Canada
Not every signed guarantee is enforceable. Courts in Canada look closely at how a guarantee was created, what it actually says, and how the parties behaved afterward. A guarantee that fails any of the basic requirements may be useless when it matters most.
The core requirements are straightforward:
In writing. Oral guarantees of another party's debt are generally unenforceable in Canada under provincial statute of frauds provisions.
Clearly identifies the parties. The guarantor, the principal debtor, and the creditor must all be named without ambiguity.
Clearly identifies the obligation. The guarantee should specify whether it covers a specific debt, all current and future debts, a maximum limit, or a defined period.
Properly executed. The guarantor must sign personally. A guarantee signed in a corporate capacity by an officer is not a personal guarantee.
Supported by consideration. Usually the extension of credit itself is the consideration, which is why guarantees are signed at account opening rather than after the fact.
A guarantee signed after credit has already been extended raises a real risk that no fresh consideration was provided. Courts have refused to enforce guarantees in those circumstances. The cleanest practice is to require the guarantee at the same time the credit application is approved, before any product or service is delivered.
The Alberta wrinkle most creditors miss
Alberta has a requirement that no other Canadian province imposes in quite the same way. Under the Guarantees Acknowledgement Act, a guarantee given by an individual in Alberta is unenforceable against that individual unless the guarantor has appeared before a notary public, acknowledged in front of the notary that the guarantor signed the document and understood it, and the notary has signed a certificate confirming that acknowledgement.
This is not a formality that can be patched up later. If the certificate is missing or improperly completed, the guarantee fails. Many creditors who do business with Alberta-based customers have learned this the hard way after winning judgment against a corporation only to discover the personal guarantee they relied on cannot be used.
The practical implication is simple. If you extend credit to an Alberta-based business and you want the personal guarantee of an Alberta resident, the signing should be done before a notary, with the proper certificate completed at the same time. Mailing forms back and forth without notarial involvement creates a guarantee that may not survive a challenge.
Why guarantees fail when they are needed
When a guarantee fails, it almost always fails for one of a handful of reasons:
Vague language. A guarantee that does not clearly state what is being guaranteed, for how long, or up to what amount can be challenged for ambiguity.
Improper execution. Signed by the wrong person, signed in a corporate rather than personal capacity, missing a notarial certificate where required, or missing a witness where required.
No fresh consideration. Signed after credit was already extended, with nothing new being offered in exchange.
Material variation of the underlying contract. If the creditor materially changed the credit relationship, such as significantly increasing the credit limit or extending new credit lines, without the guarantor's knowledge or consent, the guarantor may be released.
Conduct that suggests release. Long delays, inconsistent demands, or written communications that imply the guarantee is no longer in play can create estoppel arguments.
Outdated documents. A guarantee signed five years ago for a $25,000 line may not extend to the $400,000 the customer now owes.
The single most common failure pattern is the guarantee that was signed at account opening and then never updated as the relationship grew. Many credit managers operate as if the original guarantee covers everything that came after. That is sometimes true and sometimes not, and the answer turns on the exact wording of the document.
How enforcement actually works when the corporation cannot pay
When the corporate customer is unable or unwilling to pay and you have a valid personal guarantee, enforcement follows a clear sequence:
Demand on the guarantor. A formal written demand identifying the debt, attaching the guarantee, and requiring payment within a defined period. In many cases the demand alone produces payment because the guarantor does not want a lawsuit on their personal record.
Statement of claim against the guarantor. Filed directly against the individual if the demand is ignored. The guarantor is sued in their own name, not the corporation's.
Judgment. If undefended, default judgment is typically straightforward because the guarantee itself is the evidence of liability.
Enforcement of the personal judgment. Once you have a judgment against the individual, the same enforcement tools available against any judgment debtor apply, including writs of enforcement, garnishment of wages or bank accounts, and registration against personal property.
The decision to pursue a guarantor is not always easy. The guarantor may be the same person you have spent years building a relationship with. That is precisely why a written, properly executed guarantee matters. It converts an emotional decision into a contractual one.
If you already have guarantees on file, audit them
Most businesses extending B2B credit have guarantees on file that they have never reviewed. A practical audit takes very little time and reveals which guarantees are likely to be useful and which are likely to fail:
Confirm the guarantor's full legal name matches the signature.
Confirm the guarantee was signed in a personal, not corporate, capacity.
Confirm a notarial certificate is present and properly completed for Alberta guarantors.
Confirm the document clearly covers ongoing and future indebtedness if that is your intention.
Confirm the guarantee is current relative to the customer's current credit limit and trading history.
Where gaps exist, the time to address them is now, not after the customer's payments start to slow. Asking a customer to update a guarantee while they are still paying normally is far easier than asking them to do so after a default.
Frequently asked questions
Is a personal guarantee enforceable if the corporation goes bankrupt? Yes. The guarantor's obligation is a separate contract. The corporation's bankruptcy ends the corporation's liability, not the individual guarantor's.
Can a spouse who did not sign the guarantee be held responsible? No. Only the individuals who personally signed the guarantee are bound by it. Spouses, business partners, and other family members are not automatically liable unless they signed.
Does a personal guarantee need to be notarized? In Alberta, a guarantee given by an individual must include a notarial certificate of acknowledgement to be enforceable. Other Canadian provinces generally do not require notarial acknowledgement, although the document must still be properly executed and witnessed where required.
How long does a personal guarantee last? That depends on the language. A continuing guarantee covers ongoing indebtedness until it is formally revoked. A specific guarantee covers only a defined debt or period. The wording of the document controls.
What happens if the credit limit increased after the guarantee was signed? This is where many guarantees fail. If the guarantee is worded to cover all present and future indebtedness, the increase is usually covered. If the guarantee is worded to cover a specific limit or transaction, the additional credit may not be covered, and the guarantor may have a strong argument for release.
The bottom line
A personal guarantee is not a piece of paper to be filed and forgotten. It is the second line of defence in a B2B credit relationship, and it only works if it has been built and maintained with care. Carefully drafted, properly executed, and kept current, a guarantee can be the difference between writing off a six-figure loss and recovering it in full. Carelessly drafted or improperly executed, it is a document that gives a false sense of security right up until the moment you need it to perform.
Businesses that take their credit policies seriously treat guarantees the same way they treat insurance. The policy is not the point. The ability to collect on it is.