Skip to main content

Contract Constellation lesson

What Is a Promissory Note?

A promissory note is a written promise to repay money. Discover its parts — principal, interest, maturity and signature — at three age levels.

Junior 4+Explorer 8+Advanced 13+15 minutes

Professor Ledger, the Wealthonauts banking and contracts robot

A promissory note explained for kids starts with a simple idea everyone understands: a promise. In this lesson, Professor Ledger shows how a written promise to repay money works. First, younger explorers hear a story about borrowing coins. Then, older explorers examine principal, interest, maturity and what happens when a promise is broken.

Promissory note explained for kids, step by step

A promissory note is a document in which one person, the borrower, promises in writing to pay money to another person or company, the lender. It usually lists the amount borrowed, the interest rate, the due date and how payments are made. Finally, the borrower signs it.

Professor Ledger gives a promissory note explained for kids

Three age levels

  • Ages 4+: a story about borrowing coins and keeping a promise.
  • Ages 8+: an illustrated look at a written promise to repay.
  • Ages 13+: principal, interest, maturity, payment obligations, negotiability where applicable, and enforcement.

Why promissory notes matter

Promissory notes sit behind student loans, car loans and home loans. Because they are so common, understanding them helps young people make careful choices later. In addition, this lesson clears up a common mix-up: on a home loan, the note is the promise to repay, while the mortgage or deed of trust secures it.

After this lesson, continue to Mortgage vs. Deed of Trust on Property Planet. This lesson is educational and is not legal advice.

How to use this lesson at home or in class

Start with the level that matches your learner, then try the next level up when they are ready. For example, a family can read the Junior story together, while an older sibling works through the Advanced version. Because every level covers the same topic, this promissory note explained for kids lesson works well for mixed-age groups, homeschool co-ops and classrooms. Finally, the quiz shows what stuck, and the summary makes a quick review the next day.

Take this lesson

Lessons are taken inside the Wealthonauts courses, where your child’s progress and quiz scores are tracked. Pick the course for your child’s age.

Goldie, the Wealthonauts money history companion

Junior Course · Ages 4+

Pip borrows three coins

  • Say what a promise is
  • Know that borrowed things are given back
  • Know that a written promise is called a note
See the course · All-Access
Captain Coin, the Wealthonauts mission leader

Explorer Course · Ages 8+

A written promise to repay

  • Define borrower, lender, principal and interest
  • Identify the parts of a promissory note
  • Explain why notes are written and signed
See the course · All-Access
Nova, the Wealthonauts investing explorer

Advanced Course · Ages 13+

Anatomy of a promissory note

  • Analyze principal, interest, maturity and payment obligations
  • Explain when a note may be a negotiable instrument
  • Distinguish a note from a security instrument and describe enforcement
See the course · All-Access
🔓 All-Access · $99 one timeAll three courses, every lesson, all 40 game levels and every new lesson we add.
Get All-AccessTry the free sample
Editorial source notes
  • Uniform Commercial Code Article 3 (Negotiable Instruments), §3-104 definition of a negotiable instrument and note; adopted with variations by U.S. states.
  • Cornell Legal Information Institute, Wex: "promissory note".
  • Consumer Financial Protection Bureau, home loan documents: promissory note vs. mortgage or deed of trust.

This lesson is awaiting expert editorial review.

Wealthonauts lessons explain how financial systems work. They are educational, not financial or legal advice. Laws differ between states and countries.