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3% Down Payment Mortgage Calculator

The minimum down payment for conventional loans. Requires PMI but gets you into a home with minimal cash.

= $12,000

Monthly Payment
$2,581
Loan Amount
$388,000
Total Interest
$541,295
Total Cost
$941,295

Payment Breakdown

Down Payment$12,000 (1.3%)
Principal$388,000 (41.2%)
Total Interest$541,295 (57.5%)
Down Payment
$12,000
on $400,000 home
Monthly P&I
$2,581
7% rate, 30yr
PMI Estimate
$226/mo
~0.7% of loan/yr
Total Interest
$541,295
over 30 years

Monthly Payment with 3% Down by Home Price

Home PriceDown PaymentLoan AmountMonthly P&ITotal Interest
$150,000$4,500$145,500$968$202,985
$200,000$6,000$194,000$1,291$270,647
$250,000$7,500$242,500$1,613$338,309
$300,000$9,000$291,000$1,936$405,971
$350,000$10,500$339,500$2,259$473,633
$400,000$12,000$388,000$2,581$541,295
$450,000$13,500$436,500$2,904$608,956
$500,000$15,000$485,000$3,227$676,618
$600,000$18,000$582,000$3,872$811,942
$700,000$21,000$679,000$4,517$947,265
$750,000$22,500$727,500$4,840$1,014,927
$800,000$24,000$776,000$5,163$1,082,589
$900,000$27,000$873,000$5,808$1,217,913
$1,000,000$30,000$970,000$6,453$1,353,236

$400,000 Home with 3% Down — By Rate

Rate15-Year30-YearInterest Saved (15yr)
5.5%$3,170$2,203$222,437
6%$3,274$2,326$248,103
6.5%$3,380$2,452$274,491
6.75%$3,433$2,517$287,941
7%$3,487$2,581$301,553
7.25%$3,542$2,647$315,320
7.5%$3,597$2,713$329,237
8%$3,708$2,847$357,495

3% vs 20% Down Payment Comparison

On a $400,000 home at 7% for 30 years:

3% Down20% DownDifference
Down Payment$12,000$80,000$68,000
Loan Amount$388,000$320,000$68,000
Monthly Payment$2,581$2,129$452
Total Interest$541,295$446,428$94,866

Note: With 3% down, PMI (~$226/mo) is required until you reach 20% equity. This adds to your effective monthly cost.

Other Down Payment Options