Monthly Mortgage Payment Calculator

1. Principal and Interest (P&I)

The cornerstone of your monthly payment consists of two parts:

• Principal: The actual amount of money you borrowed from the lender to purchase the home.
• Interest: The cost charged by the lender for borrowing that money, determined by your annual interest rate.

In the early years of a fixed-rate mortgage, the majority of your monthly payment goes toward interest. Over time, an increasing share goes toward paying down the principal balance.

2. The Power of a Down Payment

Your down payment is the upfront cash you pay toward the purchase of the home. A larger down payment directly reduces your total loan amount, which lowers your monthly payments and decreases the total interest paid over the life of the loan. In the US market, putting down less than 20% typically requires you to pay Private Mortgage Insurance (PMI), which adds to your monthly expenses.

3. Choosing Your Loan Term: 15-Year vs. 30-Year Fixed

The loan term dictates how long you have to repay the debt:

• 30-Year Fixed: Offers lower, more affordable monthly payments because the debt is stretched over a longer period. However, you will pay significantly more in total interest.
• 15-Year Fixed: Comes with higher monthly payments but typically features a lower interest rate, allowing you to build home equity much faster and save a massive amount on interest.

4. Additional Costs to Remember

While this basic calculator estimates your principal and interest, your real-world monthly housing budget should also factor in local property taxes, homeowners insurance, and potential Homeowners Association (HOA) fees.