What is mortgage
Last updated: April 1, 2026
Key Facts
- The property itself serves as collateral, allowing the lender to foreclose if the borrower defaults
- Monthly payments typically include principal, interest, property taxes, and insurance (PITI)
- Interest rates can be fixed, remaining constant throughout the loan term, or adjustable, fluctuating with market rates
- Amortization schedules show how principal decreases over time with each payment
- Most mortgages require a down payment, typically 5-20% of the property's purchase price
Understanding Mortgages
A mortgage is a financial arrangement where a borrower receives funds from a lender to purchase real estate, using the property as collateral. The borrower commits to repaying the loan with interest over a predetermined period, typically 15 to 30 years. This arrangement makes homeownership accessible to people who cannot pay the full property price upfront.
How Mortgages Work
The process begins when a borrower applies for a mortgage, providing financial information and undergoing credit evaluation. The lender assesses the property's value and the borrower's ability to repay. If approved, the borrower receives funds at closing, and the property deed is recorded with the lender holding a mortgage lien. The borrower then makes regular monthly payments.
Types of Mortgages
Fixed-rate mortgages maintain the same interest rate throughout the loan period, providing payment predictability. Adjustable-rate mortgages (ARMs) start with lower rates that adjust periodically, introducing payment variability. Other options include FHA loans with government backing, VA loans for veterans, and conventional mortgages for qualified borrowers. Each type serves different borrower needs and financial situations.
Monthly Payments and Costs
Monthly mortgage payments typically include principal repayment, interest charges, property taxes, homeowners insurance, and potentially private mortgage insurance (PMI). The PITI acronym represents these four main components. Early payments are predominantly interest, while later payments gradually shift toward principal repayment as the loan balance decreases.
Foreclosure and Default
If a borrower fails to make required payments, the lender can initiate foreclosure proceedings, seizing the property to recover the outstanding loan balance. This process protects the lender's investment but has severe consequences for the borrower, including credit damage and potential homelessness. Default is therefore a serious matter with long-lasting financial implications.
Related Questions
What's the difference between fixed and adjustable rate mortgages?
Fixed-rate mortgages maintain constant interest rates and predictable payments throughout the loan term. Adjustable-rate mortgages start with lower rates that increase over time, offering initial savings but future payment uncertainty.
How much house can I afford?
Most lenders use the 28% rule, limiting housing payments to 28% of gross income, and the 36% rule for total debt payments. Your affordability also depends on down payment savings, credit score, and local property prices.
What's an amortization schedule?
An amortization schedule is a detailed table showing each mortgage payment's breakdown between principal and interest. It demonstrates how the loan balance decreases over time with regular payments until the debt is fully repaid.
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Sources
- Wikipedia - MortgageCC-BY-SA-4.0
- Consumer Financial Protection BureauPublic Domain