Down Payment Guide · 2026

How Much Down Payment for a $450K House?

You have options — from 3% FHA to 20% conventional. A 23-year banking veteran breaks down what each choice really costs you.

Minimum (FHA)
$14K
3% down — highest monthly cost
Recommended
$90K
20% down — no PMI

Down Payment Options for a $450K Home

The size of your down payment dramatically affects your monthly payment, whether you pay PMI, and how much cash you need on day one. Here's the full comparison:

Down PaymentAmountMonthly PaymentPMITotal Cash Needed
3% (FHA)$13,500$3,092Yes (~$188/mo)$32,000
5% Conventional$22,500$3,032Yes (~$188/mo)$41,000
10% Conventional$45,000$2,788Reduced$63,500
20% Conventional$90,000$2,395None$108,500
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Licensed Banking Professional
23 Years · Mortgage Specialist
The difference between 3% and 20% down on a $450K home is $696/month. Over 5 years, that's $41,787 extra — plus PMI. If you can wait and save to 20%, it's almost always worth it.

What Is PMI and How Do You Avoid It?

Private Mortgage Insurance (PMI) protects the lender — not you — if you default. It typically costs 0.5-1% of the loan amount annually. On a $450K home with 3% down, that's approximately $2,250/year in PMI alone.

You can request PMI removal once you reach 20% equity in the home (through payments + appreciation). But the fastest way to avoid it is to put 20% down from the start.

FHA vs Conventional: Which Is Better?

→ Calculate Your Exact Payment

Use our mortgage calculator to compare exact monthly payments at different down payment amounts for your specific situation.