A promissory note is the smallest unit of lending paper: one person’s signed promise to repay. It’s valid across Canada — and for family lending it’s usually one signature and several answers short of what you actually want.
A blank promissory note is free everywhere and worth about that. The complete, two-signature version of the same promise is free to draft and $29 to certify.
Strip lending paper to its skeleton and you get the note: “I, [borrower], promise to pay [lender] $X by [date], with interest at Y%.” One signature — the borrower’s — and it’s a recognized debt instrument everywhere in Canada. Banks use long-form versions of it daily. For a quick, small, arm’s-length IOU, a note can be enough.
Family lending isn’t arm’s-length, and its disputes aren’t about existence of the debt — they’re about terms. Was repayment monthly or “eventually”? Was interest agreed? Could the borrower prepay? What happens after a missed month? A bare note is silent on all of it, and silence gets filled by whichever memory is arguing. Worse, only one party signed: the lender’s understanding is nowhere on the page.
That’s why the practical upgrade path isn’t a longer note — it’s a loan agreement: the same promise, plus the schedule, the contingencies, the governing province, and both signatures with a certificate proving who signed and when.
Building the full agreement costs nothing; certifying it with both e-signatures is one $29 fee — the person creating it chooses who pays. If all you truly need is a skeleton IOU, any stationery-store note will do — but if the money matters, complete the promise.
Most free promissory note templates are American. They carry state governing-law lines, no reference to the federal 35% criminal interest rate, and a signature block with one name on it. A Canadian promissory note template that is actually usable needs five things: the parties and the exact principal; the repayment terms in full, not just a due date; the interest rate stated as an annual rate, per the Interest Act; the governing province; and space for the date and place of signing.
The honest limitation is the one templates never print on themselves: a note records the borrower’s promise, so it carries the borrower’s signature alone. That is fine for a small arm’s-length IOU. It is thin for family money, where the disagreement is almost never “did you lend it?” and almost always “what did we agree?” If you want the same promise with both signatures, a schedule and a province behind it, build the loan agreement instead — it is free to draft and you only pay if you finalise.
Everything a note does, plus the schedule, the terms, and both signatures.
Create my loan agreement →A promissory note is a written promise by one person to pay a fixed sum to another, either on a set date or on demand. The word promissory simply means promising. It is a debt instrument, not a contract between two signatories — which is precisely where it differs from a loan agreement.
It is the document that records the borrower's promise to repay: who owes whom, how much, by when, and at what interest rate. For a family loan it is the minimum viable paperwork — better than nothing, thinner than an agreement, because only one party signs it.
Rarely its form. Notes fail on substance: no identifiable parties, no stated sum, an interest rate above Canada's 35% criminal ceiling, signature obtained under pressure, or a borrower who was a minor at signing. Vagueness about repayment does not void a note — it just makes it hard to enforce the terms you thought you had.
Yes. A signed note is enforceable evidence of a debt in every province. Binding and complete are different questions, though: the note binds the borrower to repay, but says little about how, and that gap is where family disputes actually live.
Yes. A signed note stating who owes whom, how much, and on what terms is enforceable evidence of a debt in every province. Validity isn't the note's weakness — completeness is.
Typically: the borrower's acknowledgment via their own signature alongside yours, a real repayment schedule rather than a bare due date, what happens on a missed payment, prepayment rights, and the governing province. Each gap is a future argument.
Because family disputes are rarely about whether money moved; they're about what the terms were. A document both parties signed proves the terms were mutual, not dictated or misremembered. It also changes behaviour — people honour what they signed.
LendRight builds the stronger instrument: a full loan agreement, e-signed by both parties, that does everything a promissory note does and closes its gaps. If a court or trustee ever asks for your 'note,' the agreement is that and more — see our guide on notes in consumer proposals.
Who runs this: LendRight is a product of RULE8 Inc.
Last reviewed July 3, 2026 by the LendRight Editorial Team.
Based on: the common-law treatment of promissory notes and debt evidence across Canadian provinces; Criminal Code s. 347 (35% APR cap); provincial e-commerce and limitation statutes; Bankruptcy and Insolvency Act proof-of-claim practice for unsecured debts.
What this is (and isn’t): general information from a self-help drafting tool. LendRight produces loan agreements, not bare notes; nothing here is legal advice and no lawyer-client relationship arises. Quebec’s civil-law regime differs and isn’t yet supported.
On e-signing: electronic signatures are recognized for ordinary contracts in every supported province; the sealed PDF’s certificate records each signer and timestamp — evidence a bare paper note never carries.
LendRight provides self-help document automation, not legal advice, and no lawyer-client relationship is created. For complex situations, consult a licensed lawyer in your province.