A promissory note represents one of the most fundamental instruments in commercial law, serving as a written promise by one party to pay a specified sum of money to another party either on demand or at a determinable future date. Unlike a cheque, which involves three parties and operates as an order to a bank to pay, a promissory note creates a direct two-party relationship between the person making the promise and the person entitled to receive payment. This distinction matters significantly for Canadian business owners, sole proprietors, and non-profit operators because promissory notes frequently arise in contexts where traditional bank financing is unavailable, impractical, or simply unnecessary. The foundational legislation governing promissory notes across Canada is the Bills of Exchange Act, a federal statute that applies uniformly in British Columbia, Alberta, Saskatchewan, Ontario, and all other common law provinces. Quebec presents a unique situation where the Bills of Exchange Act applies to negotiable instruments as federal legislation, but the underlying contractual relationships and enforcement mechanisms may also engage provisions of the Civil Code of Quebec, creating a dual framework that operators in that province must understand.
The Bills of Exchange Act, as of the date of authorship, defines a promissory note as an unconditional promise in writing made by one person to another, signed by the maker, engaging to pay on demand or at a fixed or determinable future time a sum certain in money to or to the order of a specified person or to bearer. Each element of this definition carries legal weight and determines whether the document qualifies as a true promissory note with all the special characteristics that negotiable instruments enjoy, or whether it constitutes merely a contractual acknowledgment of debt without those characteristics. The requirement that the promise be unconditional means that a document stating "I promise to pay five thousand dollars if the goods are satisfactory" fails to qualify as a promissory note because the promise depends on a condition. The sum must be certain, meaning the amount is either stated explicitly or can be calculated with precision from the face of the document. A promise to pay "whatever amount the goods are worth" lacks this certainty and cannot function as a negotiable instrument. The maker must sign the document, and while electronic signatures have gained acceptance in many commercial contexts, the specific requirements for negotiable instruments under federal law maintain stricter formalities that business owners should verify with qualified legal counsel before assuming electronic execution suffices.