A personal guarantee is a legally binding promise made by an individual to assume responsibility for a debt or obligation if the primary borrower fails to fulfill it. When a business owner, director, or other individual signs a personal guarantee, they are agreeing that their own personal assets, income, and creditworthiness will stand behind the debt in question. This is not a mere formality or a symbolic gesture of commitment. It is a serious contractual undertaking that creates direct liability, and Canadian courts have consistently enforced personal guarantees according to their terms. Understanding what a personal guarantee is and what it commits the guarantor to is essential for anyone operating a business, sitting on a nonprofit board, or entering into commercial arrangements where credit is extended.
The legal foundation for personal guarantees in Canada rests on the law of contract and the law of suretyship. In the common law provinces, which include British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, and the Atlantic provinces, personal guarantees are governed by general contract principles as well as specific statutory provisions that vary somewhat by jurisdiction. The essential legal framework treats a guarantee as a secondary obligation, meaning the guarantor's duty to pay arises only when the primary debtor defaults. This distinguishes a guarantee from an indemnity, which is a primary obligation where the indemnifier promises to ensure the creditor suffers no loss regardless of the primary debtor's performance. In practice, many commercial guarantee documents contain both guarantee and indemnity language to provide creditors with maximum protection and to avoid technical defences that might otherwise be available to guarantors.