Accurate US Mortgage Calculator

Calculate your complete estimated monthly house payment—including Principal, Interest, US Property Taxes, Homeowner's Insurance, PMI, HOA fees, and early payoff amortization schedules.

US Mortgage Payment & Cost Calculator

📋 Mortgage Inputs

Modify the default values below and click Calculate to customize your monthly payment breakdown.

Monthly Payment Results

Total Monthly Out-of-Pocket Payment
$2,547.63
Mortgage Principal & Interest (P&I): $2,022.63 / mo

Payment & Cost Breakdown Table

Category Monthly Total Cost
🔷 Mortgage (P&I) $2,022.63 $728,146.80
🟩 Property Taxes $400.00 $144,000.00
🟦 Home Insurance $125.00 $45,000.00
🟧 PMI Insurance $0.00 $0.00
🟪 HOA Dues $0.00 $0.00
⚙️ Other Costs $0.00 $0.00
Total Out-of-Pocket $2,547.63 $917,146.80

💡 15-Yr vs 30-Yr Fixed Loan Comparison

Save $180,000+
30-Yr Fixed Term
• Est. Monthly: $2,547.63
• Total Interest: $408,146
15-Yr Fixed Term
• Est. Monthly: $3,184.20
• Total Interest: $165,150

Monthly Payment Proportion Chart

Loan Highlights & Payoff Summary

Home Purchase Price$400,000.00
Down Payment$80,000.00 (20.0%)
Total Loan Amount Borrowed$320,000.00
Total Interest Paid Over Term$408,146.80
Estimated Mortgage Payoff DateAugust 2056

US State Average Property Tax Reference Guide

Property tax rates vary across US states. Click any state to automatically load its average tax rate into your mortgage calculation:

Amortization & Payoff Graph

Visual breakdown of remaining loan balance, accumulated interest, and principal paid over time:

Remaining Loan Balance Total Principal Paid Total Interest Paid

Annual Amortization Schedule

View the year-by-year breakdown of principal reduction, interest paid, and remaining mortgage balance:

Year (Date) Principal Paid Interest Paid Total Interest to Date Remaining Balance
Enter loan details above and click Calculate to generate your full amortization schedule.

Understanding US Mortgage Payments (PITI Breakdown)

When buying a home in the United States, your monthly mortgage payment consists of four primary expenses, commonly known as PITI (Principal, Interest, Taxes, and Insurance), plus optional HOA dues and PMI.

1. Principal (P)

The portion of your monthly payment that goes directly toward reducing the actual loan balance owed to your mortgage lender.

2. Interest (I)

The fee charged by your bank or mortgage company for borrowing funds, calculated based on your fixed annual interest rate.

3. Property Taxes (T)

US local county and municipal property taxes. Lenders collect 1/12th of your annual tax bill each month into an escrow account.

4. Homeowners Insurance (I)

Hazard and flood insurance required by lenders to protect the home against damage. Paid via monthly escrow deposits.

How to Use the US Mortgage Calculator

  1. Enter Purchase Price: Input the total home purchase price (e.g. $400,000).
  2. Input Down Payment: Enter your down payment amount in dollars or percentage. If your down payment is below 20%, Private Mortgage Insurance (PMI) is included automatically.
  3. Set Interest Rate & Term: Select your fixed interest rate (e.g. 6.5%) and loan duration (30-year fixed or 15-year fixed).
  4. Add Start Date & Costs: Choose your loan start month/year, annual property taxes, home insurance, and HOA dues.
  5. Click Calculate: Instantly view your monthly payment breakdown, payoff date, interest savings, and full annual amortization schedule.

Mortgage Monthly Payment Formula

The monthly principal & interest payment is calculated using the standard US amortization formula:

M = P × [ r(1 + r)^n ] / [ (1 + r)^n - 1 ]
• M = Monthly Principal & Interest Payment
• P = Loan Principal Balance (Home Price - Down Payment)
• r = Monthly Interest Rate (Annual Rate ÷ 12)
• n = Total Number of Monthly Payments (Years × 12)

Frequently Asked Questions (FAQ)

What is PMI in a US mortgage and how do I avoid it?

PMI (Private Mortgage Insurance) is required by conventional US mortgage lenders when your down payment is less than 20% of the purchase price. PMI protects the lender if you default. You can avoid PMI by putting down 20% or more, or cancel it once your loan-to-value ratio reaches 80%.

Should I choose a 30-year or 15-year fixed mortgage?

A 30-year fixed mortgage offers lower monthly payments, making it easier on your budget. A 15-year fixed mortgage has higher monthly payments but lower interest rates, allowing you to save hundreds of thousands of dollars in interest and build home equity twice as fast.

How do extra payments affect my mortgage payoff date?

Making extra principal payments directly reduces your remaining principal balance. Because interest is charged on the balance, extra payments significantly reduce your total interest paid and shorten your loan term by several years.

How are property taxes and home insurance paid?

In the US, mortgage lenders typically collect 1/12th of your annual property taxes and homeowners insurance each month as part of your PITI payment into an escrow account. The lender pays the tax authority and insurance company on your behalf when due.