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Updated for 2026 rates

Monthly Payment on a
$400,000 Mortgage

$400,000 is a mid-range price in most US markets. Here's the monthly principal & interest payment at today's rates.

$400,000 mortgage payment by rate & term

The table below shows the estimated monthly payment (principal & interest only) for a $400,000 mortgage across common interest rates and loan terms.

Rate10-year15-year20-year25-year30-year
5.00%$4,243$3,163$2,640$2,338$2,147
5.50%$4,341$3,268$2,752$2,456$2,271
6.00%$4,441$3,375$2,866$2,577$2,398
6.50%$4,542$3,484$2,982$2,701$2,528
7.00%$4,644$3,595$3,101$2,827$2,661
7.50%$4,748$3,708$3,222$2,956$2,797
8.00%$4,853$3,823$3,346$3,087$2,935
8.50%$4,959$3,939$3,471$3,221$3,076
9.00%$5,067$4,057$3,599$3,357$3,218
9.50%$5,176$4,177$3,729$3,495$3,363
10.00%$5,286$4,298$3,860$3,635$3,510

For example, at 6.50% over 30 years, a $400,000 mortgage costs about $2,528/month. That's about $632/month more than a $300,000 mortgage at the same rate and term - about $127,544 more in total interest paid over the full 30 years. Over the full 30 years you'd pay about $910,178 total - meaning roughly $510,178 of that, or 56% of every payment made, is interest on top of the $400,000 borrowed. Within the $100,000-$1,000,000 range this page series covers, $400,000 sits around the 43th percentile.

To comfortably afford a $400,000 home under the standard 28%-of-income guideline (20% down, 6.50% rate, including estimated property tax and insurance), you'd want a gross household income around $107,398/year. See the full income breakdown for a $400,000 house.

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What changes your payment?

  • Interest rate: on this $400,000 loan, a 0.5% rate bump (to 7.00%) adds about $133/month - real money compounded over 30 years.
  • Term: switching this $400,000 loan to 15 years raises the payment by about $956/month but cuts total interest dramatically.
  • Down payment: a bigger down payment lowers the amount financed and shrinks every number in the table above.

Calculations show principal & interest only and exclude taxes, insurance and fees.