Promissory Notes: Negotiable Instruments Containing Express Terms Regarding Repayment | Legacy Legal Services


Last Updated: August 22 2026

Question:Can a demand note be treated the same as a promissory note in Ontario, and when can the lender demand payment?

Answer:In Ontario, a promissory note is a written, unconditional promise to pay a certain sum, either at a fixed or determinable future time or “on demand,” and the Bills of Exchange Act defines a promissory note as such an unconditional promise in writing (including payment on demand) in Bills of Exchange Act, R.S.C. 1985, c. B-4. A demand note is essentially a promissory note with no fixed due date, meaning the amount becomes due when the holder makes a formal demand for payment.  If you are dealing with whether your document is a true demand note or a common note with a scheduled due date, Legacy Legal Services can help legal professionals and borrowers in Ontario sort out the terms, dates, and who is entitled to payment.  Call (226) 246-3825 to discuss your situation and next steps with a paralegal.

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Understanding What Constitutes As a Promissory Note and What Is Meant By a Demand Note Versus a Common Note

Promissory Notes: Negotiable Instruments Containing Express Terms Regarding Repayment 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.

Note: Please contact Legacy Legal Services by phone at: (226) 246-3825 to discuss any specific questions that you may have.

The Law

The Bills of Exchange Act, R.S.C. 1985, c. B-4, addresses promissory notes as a form of financial instrument, along with currency, cheques, among other things, and specifically 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.

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