What Is A Promissory Note In Real Estate? (2026)

Understanding a Promissory Note in Real Estate

What is a promissory note in real estate? This key document is a buyer’s promise to repay a loan. It works similarly to an IOU.

A signed promissory note is a legally binding contract. In addition to outlining details of the loan, it also explains the consequences of default.

When and How These Notes Are Used

Promissory notes are used when someone finances a real estate purchase. They’re also used when refinancing a home.

Key Details Included in the Document

These are some of the most important details in a promissory note:

• The total loan amount
• The interest rate
• The monthly payment schedule
• Penalties for late payments
• Prepayment options or penalties
• What happens when the borrower defaults
• Contact information for the lender and borrower

Notably, the borrower is the only person signing the note.

Promissory Note vs. Mortgage: Key Differences

You may wonder, “What is a promissory note in real estate compared to a mortgage?” These two documents are closely related, but they aren’t exactly the same.

A promissory note is a written contract where a buyer promises to repay the lender. It outlines the payment schedule and loan terms.

A mortgage is a document that establishes the property being financed as collateral for the loan. In other words, it’s what allows the lender to foreclose if the buyer defaults on the loan.

Secured vs. Unsecured Promissory Notes

Most real estate promissory notes are secured by the property being financed. That way, if you default on your loan, the lender can repossess the property and sell it to get their money back. Most lenders create secured amortized promissory notes, which require buyers to pay regular installments of principal and interest.

An unsecured promissory note isn’t secured by property, so if you default, the lender will have to sue you to get their money back. Unsecured notes may be used when borrowing money from family or friends.

For example, if you borrow money from a parent to buy a house and agree to repay them in full later, your parent might create an unsecured lump-sum promissory note.

Need to Create (or Sign) a Promissory Note?

For most people, home purchases and other real estate transactions are the most significant transactions they’ll make in their lives. It’s important for buyers and lenders to thoroughly protect themselves, and the right promissory note can help clarify expectations and avoid problems down the line.

At ConsumerShield, we aim to help people from all walks of life thoroughly understand promissory notes and other legal documents. Explore our collection of legal document templates and guides today.