Credit score mortgage calculator

On a $450,000 Montclair home with 10% down and a 30-year loan, the October 2026 averages put a 620-639 score at $4,271 a month and 780 or higher at $3,854, a gap of $417 a month and $96,919 in interest and mortgage insurance over the loan. The score moves two prices at once: the interest rate and, with less than 20% down, the PMI rate.

In the Curinos data Experian published for October 2026, the average 30-year rate keeps falling up to 780 and is the same from 780 to 840 (7.46%). Experian says you generally need 760 or higher for the best rate, and the PMI card used here charges its lowest rates from 760 up. Each lender sets its own cut-offs, so ask yours where its pricing tiers fall.

Mortgage insurers price each loan by its loan-to-value and the borrower's credit score. On Radian's published card, a 30-year loan with 5% down costs 0.38% of the loan a year at 760 or higher, 0.96% at 680-699, 1.42% at 620-639 and 2.13% below 620. The premium is charged on the original loan amount, so it does not shrink as you pay the loan down.

Under the Homeowners Protection Act, you can ask your servicer to cancel it once the balance is scheduled to reach 80% of the home's original value, if your payment history is good and the value has not dropped. It ends automatically when the balance is scheduled to reach 78%, if you are current, and in any case by the loan's midpoint. The calculator stops charging PMI at 78% or the midpoint, whichever comes first. FHA and VA loans follow different rules.

It multiplies the price by the town's 2025 effective tax rate from the NJ Division of Taxation, which states each town's levy as a share of full market value. The state uses that rate to compare towns and says it is not for computing a bill: your bill is the assessed value times the general tax rate. If you know a home's actual tax bill, type it in.

The starting rates are national averages for each score band, for a conventional loan with a 30-day lock. A real quote also depends on the loan amount, down payment, points, the lock period, the property and the lender's own pricing that day. Type your quote into the rate box to price it; the comparison table keeps using the averages so every band is measured the same way.

No. It prices conventional loans with borrower-paid monthly PMI and 3% to 20% or more down. FHA and VA loans charge their own mortgage insurance or funding fees under their own rules, so their payments come out differently.

No. It never pulls a credit report, so it cannot affect your score, and it has no submit button: you pick a score band yourself, and the numbers are worked out on the page as you type.