Mortgage Payment Calculator

How to Use This Mortgage Payment Calculator

Enter your home price, down payment, interest rate, loan term, estimated property taxes, and homeowner’s insurance. The calculator returns your estimated monthly PITI payment — principal, interest, taxes, and insurance — along with a breakdown of how much goes toward each component.

What Is a PITI Payment?

PITI stands for Principal, Interest, Taxes, and Insurance. Lenders use your total PITI payment — not just principal and interest — when calculating your debt-to-income ratio. Including taxes and insurance gives you a realistic picture of your true monthly housing cost.

Understanding the Payment Breakdown

In the early years of a mortgage, the majority of each payment goes toward interest rather than principal. This is because interest is calculated on the remaining loan balance. Over time, as the balance decreases, more of each payment reduces principal. This is called amortization.

What Affects Your Mortgage Payment?

• Loan amount: The higher your home price minus down payment, the higher your payment
• Interest rate: Even a 0.5% rate difference can change your payment by $50–$150/month on a $400,000 loan
• Loan term: A 15-year mortgage has a higher monthly payment but dramatically less total interest paid
• Property taxes: Vary significantly by state and county — Utah and Florida have very different effective tax rates
• PMI: Required on conventional loans with less than 20% down; typically 0.5%–1.5% of the loan amount annually

Tips for Getting an Accurate Payment Estimate

A mortgage payment calculator is only as accurate as the numbers you enter, so it helps to use figures you can verify rather than rough guesses. Pull your home price and down payment from an actual listing or purchase agreement when possible, and check current rate quotes from a lender rather than relying on rates you saw months ago, since even small rate changes affect your monthly payment.

Remember that this calculator estimates PITI, principal, interest, taxes, and insurance, but it does not include costs like HOA dues, mortgage insurance premiums that differ by loan program, or one-time closing costs. If your property is part of a homeowners association, add that monthly fee separately when budgeting for your total housing cost.

It is also worth revisiting the calculator whenever your down payment amount or the loan term you are considering changes, since both have a meaningful effect on your monthly payment and total interest paid over the life of the loan. Comparing a few different scenarios side by side can help you see the tradeoffs between a lower monthly payment and paying less interest overall.

Finally, treat the result as a planning tool rather than a guaranteed payment. Your actual monthly payment will be confirmed by your lender in a formal Loan Estimate once you apply, and it may vary slightly based on your final interest rate, closing date, and escrow requirements.