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Promissory Notes:
Negotiable Instruments Containing Express Terms Regarding Repayment
Last Updated: June 11 2026
Question: What’s the difference between a promissory note and a demand note in Ontario?
Answer: A promissory note is a written, signed promise to pay a specific sum of money either on demand or at a fixed or determinable future time, while a demand note is a promissory note that’s payable whenever the lender demands payment (no set maturity date); for clear drafting, enforcement options, and dispute prevention across Ontario, Kush Law provides Lawyer services focused on practical, cost-effective solutions, so call (905) 460-5073 to discuss your note and next steps. This aligns with Bills of Exchange Act, R.S.C. 1985, c. B-4, which defines when a note is payable on demand versus at a future time.
Understanding What Constitutes As a Promissory Note and What Is Meant By a Demand Note Versus a Common Note
A promissory note is a form of negotiable instrument whereby a party (the issuer) makes an unconditional promise in writing to pay a sum of money to another party (the payee). Payment becomes due under a promissory note at fixed time stated within the promissory note or upon receipt of a demand for repayment. A promissory note will also contain details of any applicable terms such as a rate of accruing interest, if any.
The Law
The Bills of Exchange Act, R.S.C. 1985, c. B-4, governs financial instruments such as currency, cheques, among other things, and defines a promissory note as:
176 (1) A promissory note is an unconditional promise in writing made by one person to another person, 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.
A promissory note is a contract between two parties, the borrower and the lender. A bank note is a type of promissory note issued by a bank or other financial institution. In either circumstance, a promissory note is a written promise to pay a certain amount of money to a specific person or a specific entity at a specific time and under certain conditions. However, unlike a promissory note, a bank note is backed by the assets of a bank and is therefore more secure.
Terms Upon Notes
A promissory note will typically include details of the principal amount due, the applicable interest rate, the parties involved including a "bearer of note" if a party is unspecified, the date of issue, the repayment terms, and the due date.
Payable Upon Demand
Demand notes are a type of promissory note but differ whereas a demand note lacks a specified due date and instead becomes due upon request of payment.
Summary Comment
A promissory note is a negotiable instrument and could consist as a cheque, loan agreement, or other document evidencing indebtedness.

