Mortgage Payment Calculator

How This Calculator Works

Mortgage Payment turns the inputs into a visible formula-based estimate. Use it to pressure-test affordability, taxes, insurance, down payment, PMI, refinancing, and ownership costs before you rely on a listing price alone.

Use the mortgage payment calculator to estimate a realistic monthly housing payment from price, down payment, interest rate, loan term, property tax, insurance, PMI, HOA dues, and extra monthly principal payments.

The calculator first finds the fixed principal-and-interest payment, then adds monthly property tax, insurance, PMI when loan-to-value is above 80%, HOA dues, and optional extra principal for payoff planning.

Example Calculation

With a $425,000 price, $85,000 down, 6.75% rate, 30-year term, 1.2% property tax, and $1,800 annual insurance, principal and interest are about $2,205.23 and the monthly payment before extra principal is about $2,780.23.

When to Use This Calculator

• Compare a 10% down offer with a 20% down offer and see whether PMI changes the monthly payment enough to affect affordability
• Check whether a lower interest rate still wins after local property tax, insurance, and HOA assumptions are included
• Estimate how an extra monthly principal payment changes total interest and payoff time without mixing it into escrow costs

Practical Scenarios

• When comparing homes, use the Mortgage Payment calculator to separate principal and interest from property tax, insurance, PMI, HOA, and extra principal before deciding whether the monthly payment fits.
• If the down payment is below 20%, rerun the estimate with PMI and a realistic property tax rate so the payment does not look artificially low.
• Test extra monthly principal separately from escrow costs so you can see whether it shortens payoff time without hiding monthly cash-flow pressure.

Tips

• Use lender quotes for final escrow, PMI, and insurance numbers
• Compare APR, closing costs, and refinance break-even before choosing a loan
• Open the amortization schedule when you need to inspect principal, interest, and payoff timing month by month

Common Mistakes

• Comparing only principal and interest while leaving out PMI, tax, insurance, HOA, and closing cash
• Leaving PMI out when the down payment is below 20% or using an old PMI rate
• Mixing annual property tax, monthly tax, and tax-rate inputs in the same scenario
• Comparing only principal and interest while ignoring PMI, property tax, insurance, HOA, and closing-cost pressure.
• Entering annual property tax as a monthly amount, or mixing the tax-rate mode with an old annual tax estimate.

Assumptions and Limitations

The Mortgage Payment Calculator is most useful when loan principal, monthly interest rate, number of payments, property tax, insurance, PMI, HOA, and extra principal all describe the same home purchase scenario.

• Lender quotes can use different PMI rules, escrow estimates, insurance quotes, local taxes, fees, points, and buydown assumptions.
• The payment estimate is for planning and does not replace a loan estimate, closing disclosure, tax bill, or insurance quote.
• Extra principal estimates assume the lender applies extra payments to principal and has no prepayment restriction.

Mortgage Payment ties mortgage payment, PITI, PMI and property tax back to affordability, escrow assumptions, and ownership costs.

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