Mortgage Payment: What's Actually in That Monthly Bill

Published 2026 ? 3 min read

Your monthly mortgage payment is rarely just the loan. It's PITI ? Principal, Interest, Taxes and Insurance. Understanding the split explains why your "payment" is higher than the loan math alone.

The four parts

• Principal: pays down what you borrowed.
• Interest: the cost of borrowing ? biggest early, shrinking over time.
• Property tax: a percentage of home value, held in escrow and paid yearly.
• Home insurance: also escrowed, protecting against damage.

Why escrow exists

Lenders collect a slice of taxes and insurance each month and pay the bills for you. That smooths large yearly bills into your monthly payment ? and why "the payment" is more than principal + interest.

How the interest split changes

Early payments are mostly interest; late payments are mostly principal. On a 30-year mortgage, you'll pay more interest in the first decade than in the last two combined.

Run the numbers

Use the mortgage calculator ? enter price, down payment, rate, tax and insurance to see your full PITI payment broken into its parts.