A New Hampshire down payment calculator that turns a single home price into the cash you need at every common down payment tier — 3%, 5%, 10% and 20% — and shows exactly where you cross the 20% threshold that removes private mortgage insurance (PMI). It is built for New Hampshire buyers comparing how much to put down, and what each choice does to the loan size and the monthly PMI bill.
How it works
For each tier the math is the same simple split. The down payment is the price multiplied by
the tier percentage, so downPayment = price x pct. The loan amount is whatever is left:
loan = price - downPayment. Below 20% down, conventional loans usually carry PMI, which this tool
estimates at about 0.5% of the loan balance per year: pmiMonthly = loan x 0.005 / 12. At the
20% tier and above, PMI is zero — that is the whole reason 20% is the tier buyers aim for. The
total upfront cash shown is the down payment itself (closing costs are extra; see Notes).
Example
Take a New Hampshire home priced at $490,000 (the example default in the tool):
- 3% down: down payment $14,700, loan $475,300, PMI about $198/month.
- 20% down: down payment $98,000, loan $392,000, no PMI.
The gap between the two down payments is the price of skipping PMI: a much larger cheque now in exchange for a smaller loan and no monthly insurance later. Change the price and every tier recalculates instantly.
Notes
Estimate only — not financial advice. PMI rates vary with credit score, loan-to-value and lender, and FHA, VA and USDA loans use different rules (FHA charges MIP that a 20% down payment does not remove). The down payment is not the only upfront cost: New Hampshire closing costs typically add about 2% to 5% of the price. For program rules and current guidance, consult a licensed New Hampshire mortgage lender and the Consumer Financial Protection Bureau (consumerfinance.gov).