Mortgage Calculator

Use this free mortgage calculator to estimate your monthly mortgage payment, including principal and interest, property taxes, home insurance, PMI, and HOA fees — plus your total interest paid and a full amortization schedule. Whether you’re shopping for a home, comparing loan terms, or deciding whether to refinance, this calculator gives you a complete picture of your real monthly housing cost, not just the base loan payment.

How to Use This Mortgage Calculator

Enter your home price, down payment, interest rate, and loan term to get your base monthly payment. Then add your estimated property taxes, home insurance, PMI, and HOA fees to see your true total monthly housing cost — the number that actually matters when deciding what you can afford. If you’re paying down an existing mortgage, use the extra monthly payment field to see exactly how much faster you could pay it off and how much interest you’d save.

Understanding Your Mortgage Payment Breakdown

A mortgage payment is rarely just one number — it’s typically made up of several components, often bundled together into a single monthly bill through an escrow account. Understanding each piece helps you see exactly where your money goes every month.

Principal & Interest

This is the core of your mortgage payment — the amount that actually pays down your loan balance (principal) and compensates the lender for lending you the money (interest). Early in a mortgage, a much larger share of each payment goes toward interest rather than principal; over time, that ratio flips, with more of each payment reducing your balance directly. This calculator’s amortization schedule shows exactly how that shift happens, month by month, for the entire life of your loan.

Property Taxes

Local governments assess property taxes annually based on your home’s value, and most lenders require this to be paid monthly through an escrow account rather than as one lump sum. Property tax rates vary significantly by state, county, and even school district, which is why this calculator lets you enter your own estimated annual amount rather than assuming a fixed rate.

Home Insurance

Homeowners insurance protects your property against damage, theft, and liability, and lenders typically require proof of coverage for the life of the loan. Like property taxes, this cost is usually collected monthly and held in escrow, then paid annually on your behalf.

PMI (Private Mortgage Insurance)

If your down payment is below 20% of the home’s purchase price, most conventional lenders require PMI — insurance that protects the lender, not you, in case of default. PMI is typically an additional monthly cost that can often be removed once you reach 20% equity in your home, so it’s worth tracking separately rather than assuming it’s a permanent part of your payment.

HOA Fees

If your home is part of a homeowners association — common in condos, townhomes, and many planned communities — you’ll pay a separate monthly or annual fee covering shared amenities and maintenance. This is not collected by your mortgage lender and isn’t part of your loan itself, but it’s a real, recurring cost that belongs in any honest calculation of what a home actually costs you each month.

Why Total Monthly Housing Cost Matters More Than the Base Payment

Many people compare homes or mortgage offers using only the principal and interest figure — but that number alone can be misleading. A home with a lower list price but high property taxes and HOA fees can easily cost more per month than a pricier home in a lower-tax area with no HOA. This calculator is built around total monthly housing cost specifically because that’s the number that determines what you can actually afford, not just the base loan payment.

How the Amortization Schedule Works

Every mortgage payment splits between interest (calculated on your current remaining balance) and principal (reducing that balance). As your balance shrinks, less interest accrues each month, so a growing share of your fixed payment goes toward principal — even though your total payment amount typically stays the same for the life of a fixed-rate loan. The amortization schedule in this calculator lays out that exact split for every single month, so you can see precisely how much of any given payment reduces your balance versus how much goes to interest.

Frequently Asked Questions

Does this calculator account for extra principal payments? Yes — enter an extra monthly payment amount and the calculator will show you exactly how many years and how much interest you’d save by paying above your required minimum.

Why is my estimated payment different from what my lender quoted me? Lenders factor in your specific credit profile, exact loan program, and current rate offers, which can differ from generic estimates. This calculator is designed to give you a strong starting estimate for planning and comparison purposes, not a final loan quote.

Should I include property taxes and insurance if I’m just comparing loan offers? If you’re comparing interest rates or loan terms specifically, you can focus on the principal and interest figure. If you’re deciding what home you can actually afford, always include taxes, insurance, PMI, and HOA — they can add hundreds of dollars to your real monthly cost.

How accurate is the amortization schedule? The schedule is mathematically accurate based on the inputs you provide. Actual amortization from your lender may differ slightly due to payment timing, rounding, or changes in an adjustable rate over time.

Can I use this calculator for a refinance, not just a new purchase? Yes — simply enter your current remaining loan balance as the “home price” with a down payment of $0, along with your new proposed rate and term, to estimate a refinanced payment.

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This calculator and the figures it produces are estimates for informational purposes only and do not constitute financial advice. Actual mortgage terms, rates, and costs vary by lender — consult a licensed mortgage professional for exact figures specific to your situation.