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20% Down Payment Mortgage Calculator

The traditional standard. Eliminates PMI entirely, giving you the lowest possible monthly payment for your rate.

= $80,000

Monthly Payment
$2,129
Loan Amount
$320,000
Total Interest
$446,428
Total Cost
$846,428

Payment Breakdown

Down Payment$80,000 (9.5%)
Principal$320,000 (37.8%)
Total Interest$446,428 (52.7%)
Down Payment
$80,000
on $400,000 home
Monthly P&I
$2,129
7% rate, 30yr
PMI Estimate
None
20%+ eliminates PMI
Total Interest
$446,428
over 30 years

Monthly Payment with 20% Down by Home Price

Home PriceDown PaymentLoan AmountMonthly P&ITotal Interest
$150,000$30,000$120,000$798$167,411
$200,000$40,000$160,000$1,064$223,214
$250,000$50,000$200,000$1,331$279,018
$300,000$60,000$240,000$1,597$334,821
$350,000$70,000$280,000$1,863$390,625
$400,000$80,000$320,000$2,129$446,428
$450,000$90,000$360,000$2,395$502,232
$500,000$100,000$400,000$2,661$558,036
$600,000$120,000$480,000$3,193$669,643
$700,000$140,000$560,000$3,726$781,250
$750,000$150,000$600,000$3,992$837,053
$800,000$160,000$640,000$4,258$892,857
$900,000$180,000$720,000$4,790$1,004,464
$1,000,000$200,000$800,000$5,322$1,116,071

$400,000 Home with 20% Down — By Rate

Rate15-Year30-YearInterest Saved (15yr)
5.5%$2,615$1,817$183,453
6%$2,700$1,919$204,621
6.5%$2,788$2,023$226,385
6.75%$2,832$2,076$237,477
7%$2,876$2,129$248,703
7.25%$2,921$2,183$260,058
7.5%$2,966$2,237$271,536
8%$3,058$2,348$294,841

True Cost with 20% Down on $400,000

Cash Needed at Close
$92,000
down + ~3% closing costs
Total Interest (30yr)
$446,428
140% of loan
Total Paid (30yr)
$846,428
2.1× price
PMI Savings
$0
No PMI required

Guide to Buying with 20% Down

Putting 20% down on a home means you need $80,000 upfront on a $400,000 home. Here's what to consider:

  • No PMI required. With 20% down, you skip private mortgage insurance entirely, saving you $187/month compared to a typical PMI payment.
  • Better rate potential. Lenders view larger down payments as lower risk, potentially offering you better rates.
  • Your loan amount is $320,000. A smaller loan means less total interest over the life of the mortgage — $446,428 at 7% over 30 years.
  • Don't drain your savings. Keep 3-6 months of expenses in reserve after closing. The $80,000 down payment shouldn't leave you cash-strapped for repairs, moving costs, or emergencies.
  • Explore assistance programs. Many states and cities offer down payment grants or matched savings programs for first-time buyers — these can supplement your 20% down payment.
  • Factor in closing costs. Budget an additional 2-5% ($8,000$20,000) for closing costs on top of your $80,000 down payment.

Frequently Asked Questions — 20% Down Payment

Is 20% a good down payment?

Yes — 20% down eliminates PMI and gives you immediate equity. It's above the conventional threshold that most financial advisors recommend.

How much is 20% down on a $400,000 home?

20% of $400,000 is $80,000. Your loan amount would be $320,000, with a monthly payment of $2,129 at 7% for 30 years.

Do I need PMI with 20% down?

No — with 20% down, you've exceeded the 20% threshold and won't pay private mortgage insurance.

How does 20% down compare to 20% down?

20% down is the standard benchmark — it eliminates PMI, gives you meaningful equity from day one, and qualifies you for the best rates.

What loan types accept 20% down?

All loan types accept this down payment level. Conventional loans are most common at 10%+. Compare loan types to find the best fit for your credit profile.

Should I save more or buy now with 20% down?

With 20% down, you're in strong shape. Buying now locks in current prices and rates. Just ensure you maintain 3-6 months of cash reserves after closing.

How long does it take to save 20% for a $400,000 home?

Saving $80,000 depends on your income and savings rate. At $1,000/month saved, it takes about 80 months (6.7 years). At $2,000/month, roughly 40 months.

Can I use gift money for my 20% down payment?

Yes — most loan types allow gift funds for down payments. Conventional loans may require you to contribute some of your own funds if putting less than 20% down. FHA and VA loans allow 100% of the down payment to come from gifts. You'll need a gift letter from the donor.

Other Down Payment Options