Finance & Loan · Guide

Monthly Mortgage Payment on a $200k to $600k House

House price is not loan amount. Here is what a home at each price really costs per month once you add the down payment, tax and insurance.

Written by the MarsCalc Hub editorial team Every example worked through and checked Published · 4 min read

Want the answer for your own numbers? Use the free Mortgage Calculator — it does every step below for you.

House price vs loan amount

People search for "mortgage on a 300k house" and "300k mortgage payment" as if they were the same. They are not. With 20% down, a $300,000 house needs a $240,000 loan. With 10% down, it needs $270,000. The loan is what sets your payment.

Monthly payment by house price

Assumptions: 30-year fixed at 6.5%, property tax of 1% of the price per year, and home insurance of $150 a month. PMI is not included for the 10% down column.

House priceLoan (20% down)Principal & interestWith tax & insuranceP&I with 10% down
$200,000$160,000$1,011$1,328$1,138
$250,000$200,000$1,264$1,622$1,422
$300,000$240,000$1,517$1,917$1,707
$350,000$280,000$1,770$2,211$1,991
$400,000$320,000$2,023$2,506$2,275
$500,000$400,000$2,528$3,095$2,844
$600,000$480,000$3,034$3,684$3,413

So the mortgage on a $400k house with 20% down is about $2,023 a month for the loan alone, or roughly $2,500 once tax and insurance are added.

Payment by loan amount

Already know how much you will borrow? Use this instead. Principal and interest only, 30 years.

Loan5.5%6.5%7.5%
$200,000$1,136$1,264$1,398
$250,000$1,419$1,580$1,748
$300,000$1,703$1,896$2,098
$350,000$1,987$2,212$2,447
$400,000$2,271$2,528$2,797
$500,000$2,839$3,160$3,496
$600,000$3,407$3,792$4,195

15-year vs 30-year payment

A shorter loan costs more each month but far less overall. With 20% down, both at 6.5%:

House priceTermPrincipal & interestTotal interest
$300,00030 years$1,517$306,100
$300,00015 years$2,091$136,300
$400,00030 years$2,023$408,100
$400,00015 years$2,788$181,800

The 15-year loan saves well over half the interest. In practice 15-year rates are usually a little lower than 30-year rates, which makes the gap even wider.

What else goes into the monthly bill

  • Property tax. Varies hugely — well under 1% of value in some US states and over 2% in others. Check your county's rate.
  • Home insurance. Depends on location, rebuild cost and weather risk.
  • PMI. On a conventional loan with less than 20% down, private mortgage insurance is usually added until you reach 20% equity.
  • HOA fees. For condos and some neighbourhoods.

Lenders call the full bundle PITI: principal, interest, taxes and insurance.

How the down payment changes the bill

A $400,000 house at 6.5% for 30 years, with 1% property tax, $150 a month insurance, and PMI estimated at 0.5% of the loan a year when you put down less than 20%:

Down paymentCash neededLoanPrincipal & interestPMITotal a month
5%$20,000$380,000$2,402$158$3,044
10%$40,000$360,000$2,275$150$2,909
15%$60,000$340,000$2,149$142$2,774
20%$80,000$320,000$2,023$0$2,506

Going from 5% to 20% down cuts the monthly bill by about $538. Part of that is the smaller loan; part is losing PMI altogether.

How the rate changes your payment

On a 30-year loan, each 1 percentage point adds roughly $67 a month per $100,000 borrowed. On a $300,000 loan, going from 6.5% to 7.5% adds about $200 a month and around $73,000 over the full term. That is why a better credit score, or buying points, can be worth so much.

Worked example: a $350k house

10% down, 30 years at 6.5%

Down payment: $35,000. Loan: $315,000.

Principal and interest: about $1,991. Tax at 1%: $292. Insurance: $150. PMI (estimate 0.5% a year): $131.

Total: about $2,564 a month

Change any of these numbers in the mortgage calculator, which also shows your full amortization schedule. Not sure you can afford it? Read how much income you need for a mortgage.

What you pay over 30 years

The monthly figure hides the total. With 20% down at 6.5%:

House priceDown paymentLoan payments over 30 yearsOf which interest
$200,000$40,000$364,100$204,100
$300,000$60,000$546,100$306,100
$400,000$80,000$728,100$408,100
$500,000$100,000$910,200$510,200
$600,000$120,000$1,092,200$612,200

On a 30-year loan at this rate, interest adds up to more than the amount borrowed. Paying even a little extra each month, or switching to biweekly payments, chips away at that total.

Frequently asked questions

About $1,896 a month for principal and interest at 6.5% over 30 years. Add property tax, insurance and any PMI on top. At 7.5% the same loan costs about $2,098.

With 20% down ($80,000) the loan is $320,000. At 6.5% over 30 years that is about $2,023 a month, or roughly $2,500 with typical tax and insurance.

With 20% down ($100,000), a $400,000 loan at 6.5% for 30 years costs about $2,528 a month for principal and interest, or roughly $3,095 once 1% property tax and $150 a month insurance are added.

It saves a lot of interest — on a $240,000 loan at 6.5%, about $136,300 instead of $306,100 — but the monthly payment is around $574 higher. It suits buyers who can afford the bigger payment comfortably and still keep an emergency fund.

Sources and further reading

  1. CFPB — Owning a home — comparing loan offers, closing costs and monthly payments
  2. CFPB — What is private mortgage insurance? — when PMI applies and how it is removed