Mortgage on a $450,000 home (2026)

Monthly payment with 20% down: $2,383/mo P&I, or about $3,021/mo all-in with taxes and insurance. At 6.95% (national average, 30-year fixed).

Monthly payment by down payment

ScenarioDown paymentP&I (30yr)PMIAll-in/mo
20% down (no PMI)$90,000$2,383$3,021
10% down$45,000$2,681$287$3,606
5% down (FHA)$22,500$2,830$303$3,771

Taxes estimated at 1.1% annually · Insurance at 0.6% · Rate: 6.95%

Income needed to afford a $450,000 home

20% down (no PMI)
$129K/yr
at 28% DTI
10% down
$155K/yr
at 28% DTI
5% down (FHA)
$162K/yr
at 28% DTI

Can you afford a $450,000 house?

A $450,000 home at today’s 6.95% average rate requires $2,383/month in principal and interest with 20% down ($90,000). That translates to needing roughly $129K in gross annual income to stay within the conventional 28% housing expense ratio.

The difference between 5% and 20% down on a $450,000 home is significant: a 5% down payment ($22,500) adds PMI of about $303/month until you reach 20% equity, and adds $93,420 in total interest over the life of the loan. If you can afford the larger down payment, the math strongly favors it.

On a 15-year loan, the monthly P&I payment jumps to $3,226$843 more per month than the 30-year option — but you save $277,200 in total interest and own the home outright in half the time.

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