The homeowner’s worksheet
Mortgage payment calculator
Estimate a fixed-rate mortgage payment, then add property taxes, insurance and HOA fees for a fuller monthly picture.
No signup required. Your entries stay in your browser. Illustrative estimates, not loan offers.
01 / Monthly payment
What could the payment be?
For a fixed-rate loan with equal monthly principal-and-interest payments.
Before making a decision
Understand the estimate.
How principal and interest are calculated
The monthly payment uses the loan amount, annual interest rate and number of monthly payments. At 0% interest, the loan amount is divided by the number of payments. For a positive rate: payment = balance × monthly rate ÷ [1 − (1 + monthly rate)−number of payments]. The monthly rate is the annual interest percentage entered divided by 1,200; use the note interest rate, not APR.
Expenses you enter separately
Annual property taxes and homeowners insurance are divided by 12. Mortgage insurance and HOA fees are entered as monthly amounts. These expenses are not estimated automatically, and they may change over time.
The calculation assumes a fully amortizing fixed-rate loan with equal monthly payments. It excludes adjustable-rate changes, balloon payments, fees and extra principal payments. Lender rounding can cause small differences. Read the CFPB Loan Estimate explainer and monthly-payment worksheet when reviewing an actual offer.