Down Payment Guide · 2026

How Much Down Payment for a $400K 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)
$10K
3% down — highest monthly cost
Recommended
$70K
20% down — no PMI

Down Payment Options for a $400K 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:

Financial data table
Down PaymentAmountMonthly PaymentPMITotal Cash Needed
3% (FHA)$10,500$2,405Yes (~$146/mo)$26,000
5% Conventional$17,500$2,358Yes (~$146/mo)$33,000
10% Conventional$35,000$2,169Reduced$50,500
20% Conventional$70,000$1,863None$85,500
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Licensed Banking Professional
23 Years · Mortgage Specialist
The difference between 3% and 20% down on a $400K home is $542/month. Over 5 years, that's $32,501 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 $400K home with 3% down, that's approximately $1,750/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.

Who Buys $400K Homes?

A $400K home is near the national median price. In Phoenix, this buys a 3-bed 2-bath in most suburbs.

Most common cities: Phoenix AZ, Nashville TN, Charlotte NC, Columbus OH

Salary needed (20% down): $89,600/year

Salary needed (10% down): $100,800/year

Est. monthly payment: $2,149/mo (20% down) · $2,418/mo (10% down) at 7.1%