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How Much Down Payment Do You Need to Buy a House?

3% vs 10% vs 20% down payment explained. PMI costs, loan types, and how down payment size affects your monthly payment.

July 9, 20268 min readBy MyWealthForge
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Key Takeaways

  • 120% down avoids PMI and gets the best rates — but is not required.
  • 2FHA loans allow 3.5% down; conventional loans start at 3%.
  • 3Lower down payment = higher monthly payment + PMI + less equity cushion.
  • 4Keep 3–6 months expenses in savings after closing — do not drain everything.

The down payment myth: you need 20% to buy a home. Reality: most first-time buyers put down 6–7%. The right amount depends on your savings, loan type, and monthly budget.

Model payments at different down payment levels with our mortgage calculator.

Down Payment Options by Loan Type

Conventional: 3–20%. FHA: 3.5% minimum. VA/USDA: 0% for eligible buyers. Each has different mortgage insurance rules.

A $400,000 home at 3% down ($12,000) vs 20% ($80,000) changes your payment by $400+/month.

The PMI Tradeoff

Under 20% down, you pay Private Mortgage Insurance — typically $100–$300/month until you reach 20% equity.

Read what is PMI to calculate the true cost of a low down payment.

How Much Should YOU Put Down?

Put down the minimum that keeps your housing payment under 28% of income AND leaves an emergency fund intact.

Factor closing costs — another 2–5% due at signing.

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