US Down Payment Calculator
Plan the cash required for a home purchase. Convert a percentage or amount, then include your estimated closing costs and chosen cash reserve.
Rule year: 2026 · USD · Sources checked
Planned down payment
No lender minimum, gift eligibility, mortgage programme, assistance award, financed fee or investment return is assumed. A lower LTV does not establish approval. Conventional PMI may apply at higher LTV, while FHA/VA and other products have different rules. Closing costs and reserves are your estimates.
For informational purposes only. This estimate is not financial advice, a tax return, a payroll calculation or a lender decision. See the supported circumstances and exclusions below.
How this calculator works
The down payment reduces the purchase loan; closing costs and a cash reserve do not automatically reduce principal. The cash target combines these separate amounts and subtracts available cash to show a funding gap. Its monthly saving figure divides that gap across your chosen timeline without investment growth. It is a planning step before itemized closing reconciliation or lender affordability assessment.
Formula and rules
Down = price × percentage / 100, or entered amount. Loan = price − down. LTV = loan / price × 100. Cash gap = max(0, down + costs + reserve − available cash).
Assumptions and limitations
No lender minimum, gift eligibility, mortgage programme, assistance award, financed fee or investment return is assumed. A lower LTV does not establish approval. Conventional PMI may apply at higher LTV, while FHA/VA and other products have different rules. Closing costs and reserves are your estimates.
Worked example
A $300,000 home with 10% down needs $30,000 down and a $270,000 purchase loan at 90% LTV. With $6,000 costs, $4,000 reserves and $20,000 saved, the gap is $20,000, or $2,000/month over ten months.
- Planned down payment
- $30,000.00
- Purchase mortgage before financed fees
- $270,000.00
- Loan-to-value
- 90%
- Cash target including entered costs and reserve
- $40,000.00
Official sources and review
Reviewed against the sources below on 2026-10-07. Rates are held in versioned rule modules. Versioned rules, official source review and year-specific calculation tests.
- CFPB: Debt-to-income ratio ↗
DTI compares monthly debt payments with gross monthly income; lending requirements vary.
- CFPB: removing private mortgage insurance ↗
Conventional-loan 80% request and 78% original-schedule automatic-termination rules, subject to conditions.
Common questions
Is 20% down required?
Not universally. Available minimums depend on the loan programme and borrower. The presets are comparison inputs, not underwriting thresholds.
Are closing costs part of the down payment?
They are separate cash uses here. For actual deposits, credits and financed charges, use Closing Costs.
Does the monthly target include interest on savings?
No. It is a flat funding gap divided by months. Savings Goal can model a chosen savings return separately.