What is a promissory note?

A promissory note is a legally binding written promise by one party (the borrower) to pay a specific sum to another party (the lender) at a specified date or on demand. Used for personal loans, business loans, real estate transactions, and student loans.

A promissory note is a financial instrument — a written, signed promise to pay a specific amount of money. It's simpler than a loan agreement but creates the same legal obligation to repay.

Essential elements:

1. Names of borrower (maker) and lender (payee). 2. Principal amount being borrowed (in dollars). 3. Interest rate (or 'no interest' if applicable). 4. Repayment terms — lump sum at maturity, monthly installments, or on demand. 5. Maturity date — when full repayment is due. 6. Default consequences — what happens if the borrower fails to pay. 7. Signature of borrower (lender's signature is not strictly required but recommended).

Types of promissory notes:

  • Demand note — payable whenever the lender requests it.
  • Installment note — paid in regular installments (monthly/quarterly).
  • Balloon note — small payments throughout, large lump sum at maturity.
  • Secured note — backed by collateral (car, real estate, equipment).
  • Unsecured note — no collateral; higher interest rates compensate for risk.
  • Negotiable note — can be transferred to a third party (like a check).

Common uses:

  • Personal loans between family/friends ($1,000+).
  • Business loans from individuals or private investors.
  • Real estate — second mortgages, owner financing, bridge loans.
  • Student loans (federal and private).
  • Car loans (often combined with a security agreement).
  • Investment in startups (convertible notes are a special type).

Legal validity: a promissory note is enforceable in court like any other contract. To strengthen enforceability:

1. Write it down — verbal loan promises are nearly impossible to enforce. 2. Use precise language — exact dollar amounts, dates, interest rate. 3. Get the borrower's signature — required for enforcement. 4. Notarize for amounts over $5,000 — adds another layer of evidence. 5. Include default and acceleration clauses — 'If borrower misses any payment, the entire balance becomes immediately due.' 6. State governing law — which state's laws apply to disputes.

State usury limits: each state caps the maximum interest rate. Charging more than the legal limit can void the note. Common limits: 5-10% for non-licensed lenders.

Promissory note vs loan agreement: a promissory note is shorter and only documents the borrower's promise to pay. A loan agreement is longer and includes detailed lender/borrower obligations, covenants, default events, and remedies. For loans under $50K, a promissory note is usually sufficient.

Generate a free promissory note at icontract.pro/promissory-note-generator — choose installment or lump-sum repayment, customize interest, and download in 2 minutes.

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