Mortgage

A loan secured by real property, repaid over an amortization period.

Updated Sep 06, 2025

A mortgage is a loan used to purchase real estate, most often a home. It allows individuals to buy property without paying the full price upfront. Instead, the borrower repays the loan over time, typically in monthly installments, which include both the loan amount (principal) and the lender’s charge (interest).

How Mortgages Work

When you take out a mortgage, you agree to borrow money from a bank or financial institution to buy a property. In return, the lender places a legal claim (called a lien) on the property until the debt is fully repaid. If you fail to pay, the lender can repossess the property (foreclosure).

Key Components of a Mortgage

  • Principal: The amount of money borrowed to purchase the home.
  • Interest: The cost of borrowing money, expressed as a percentage rate.
  • Term: The length of time over which you repay the loan (e.g., 15, 20, or 30 years).
  • Amortization Schedule: A breakdown of each payment, showing how much goes to principal versus interest.
  • Down Payment: The initial amount paid upfront by the buyer, usually a percentage of the purchase price.

Types of Mortgages

  1. Fixed-Rate Mortgage: The interest rate stays the same for the entire term, making payments predictable.
  2. Variable or Adjustable-Rate Mortgage (ARM): The interest rate can change over time, often starting lower but potentially rising.
  3. Open Mortgage: Allows early repayment without penalties but usually comes with higher rates.
  4. Closed Mortgage: Lower rates but strict rules about paying off early, often with penalties.

Benefits and Risks

The main benefit of a mortgage is that it makes homeownership possible without needing the full purchase price upfront. It also helps build equity as you repay the loan. However, risks include interest costs, possible foreclosure if you can’t keep up with payments, and financial strain if rates rise (for variable mortgages).

Final Thoughts

A mortgage is often the largest financial commitment in a person’s life. Understanding how it works helps you choose the right type of loan, manage payments responsibly, and ultimately achieve the long-term goal of owning your home outright.