Mortgage Calculator

What is a mortgage payment calculator?

A mortgage calculator estimates what you may pay each month for a home loan. This mortgage payment calculator adds principal and interest to property tax, homeowners insurance, private mortgage insurance (PMI) and HOA dues when you enter them. It can serve as a home loan calculator or house payment calculator when you are comparing homes or loan offers.

The principal is the amount you borrowed that you repay. Interest is the lender’s charge for lending you that money. Together, principal and interest form the loan payment. The other costs can make your actual monthly housing bill quite different from that loan payment alone. A PITI calculator focuses on principal, interest, taxes and insurance; this calculator also includes PMI and HOA dues.

Why your full mortgage payment matters

A home price does not show the full effect on your monthly budget. Property taxes, insurance, PMI and HOA dues can add meaningful costs. Estimating them before you make an offer helps you compare homes on the basis of their ongoing cost, not just their price.

Use the result alongside your income, savings goals and other bills. If the payment leaves too little room for repairs or other expenses, consider a lower-priced home, a larger down payment or a different loan term. The calculator is an estimate, not a lender approval or a complete household budget.

How to use this mortgage calculator

1. Enter the home price and your down payment percentage. The calculator uses these to estimate the loan amount.
2. Enter the interest rate and loan term from a lender quote or the loan you want to compare. A different rate or term changes principal and interest and the total interest shown.
3. Choose the state. Enter a property tax rate if you know the rate you want to use. Enter 0 to use the calculator’s state average; a state average may not match the tax bill for a specific home.
4. Enter annual homeowners insurance, monthly HOA dues and the PMI rate if applicable. The calculator applies PMI only when your down payment is under 20%.
5. Enter any extra monthly principal you plan to pay. Review the monthly payment and amortization schedule, then adjust one input at a time to compare scenarios.

Mortgage calculator example

How to read your mortgage results

The monthly payment combines the listed monthly costs. Principal and interest use the standard amortization formula. The balance is paid down over the loan term, while interest is calculated as part of the scheduled payments. The amortization schedule shows how payments are allocated over time.

Property tax defaults to the state’s effective rate on owner-occupied homes when you enter 0. Treat that as an estimate, then check the property’s tax records for a more specific figure. The insurance amount is based on what you enter, and actual premiums can differ. HOA dues are included only to the extent you enter them. The estimate does not include costs such as utilities, maintenance or closing costs.

How to lower your mortgage costs

1. 01

   Compare lender offers

   Ask lenders for quotes using the same loan amount and term, then enter each quoted rate. Compare the payment and total interest, and ask how fees or discount points affect the overall cost.

2. 02

   Consider a larger down payment

   A larger down payment reduces the amount you borrow. It may also mean you do not pay PMI if your down payment reaches 20% or more. Weigh that against keeping enough savings for other needs.

3. 03

   Compare loan terms

   A shorter term generally means higher scheduled principal and interest payments but less time for interest to accrue. Compare the monthly payment and total interest before choosing a term.

4. 04

   Check taxes and insurance

   Look up the tax information for the specific property and request an insurance quote. If either figure is higher than your estimate, update the calculator before deciding what fits your budget.

5. 05

   Ask about extra principal

   If your budget allows, test an extra monthly principal payment. Confirm with your lender how extra payments are applied and whether your loan has any conditions that affect them.

Common mortgage calculator mistakes

• Looking only at principal and interest

  That figure leaves out taxes, insurance, PMI and HOA dues. Include every cost you know so the estimate better reflects your monthly housing bill.

• Treating a state tax average as a property quote

  A state-level estimate may differ from the tax bill for a particular home. Check the specific property’s tax information before relying on the result.

• Using a guessed insurance or HOA amount

  A low estimate can make a home seem more affordable than it is. Use an insurance quote and the HOA’s current dues when available.

• Assuming PMI applies to every down payment

  This calculator applies PMI only when the down payment is under 20%. Your lender determines the actual mortgage-insurance requirements and terms.

The mortgage payment formula

Key terms

Amortization

The process of paying down a loan through scheduled payments over its term.

Principal

The amount borrowed, excluding interest and other housing costs.

PMI

Private mortgage insurance, which may apply when a down payment is under 20%.

PITI

Principal, interest, taxes and insurance, the main costs included in a PITI payment estimate.

Loan term

The period over which you agree to repay the mortgage.