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Mortgage payment calculator

The full monthly number, not just principal and interest: taxes, insurance and HOA included, with every assumption stated.

No current rate is on file for this site. Enter the rate your lender quoted.

The starting price is the Naperville median value from the market report. Source: Redfin (through May 2026) · U.S. Census ACS (2024)

Total monthly payment

per month

Loan amount
$496,000
Principal and interest
Property tax
$1,033
Insurance
$125
HOA
$0
Total interest over the loan

Assumptions in the worked example

  • 20% down payment
  • 30-year fixed loan
  • Property tax at 2% of price per year (enter the real bill for the town you are looking at)
  • Homeowner's insurance at $1,500 per year
  • No HOA

Monthly payment by rate

RateP&ITotal monthlyInterest over 30 years
5.00%$2,663$3,821$462,549
5.50%$2,816$3,975$517,844
6.00%$2,974$4,132$574,557
6.50%$3,135$4,293$632,621
7.00%$3,300$4,458$691,964

Estimates for planning. Your lender's Loan Estimate and the closing statement are the real numbers.

Want the numbers for a specific home?

Real taxes, real HOA, the actual rate you were quoted. I do this every week.