3 Home Loan Down Payment Options and Their Trade-Offs

This calculator estimates the cash down payment and starting loan balance for a home purchase. Enter the purchase price and down payment percentage to see both amounts; it does not assess loan eligibility or total ownership costs.

Formula

Down payment amount equals purchase price multiplied by the down payment percentage divided by 100. Starting loan amount equals purchase price minus the down payment amount.

• price is the home purchase price in dollars.
• pct is the portion paid upfront, expressed as a percentage from 0 to 100.
• down is the calculated upfront amount in dollars.
• loan is the purchase-price balance after subtracting the down payment, in dollars.

The percentage input is a way to compare possible cash contributions, not a statement about any lender’s requirements. Enter a price and percentage that match the scenario you want to examine.

Worked Example

Using the calculator’s defaults, the purchase price is $350,000 and the down payment is 20%.

1. Convert the percentage to a decimal: 20 ÷ 100 = 0.20.
2. Multiply the price by that fraction: $350,000 × 0.20 = $70,000.
3. Subtract the down payment from the price: $350,000 − $70,000 = $280,000.

The calculated down payment is $70,000.00, and the starting loan amount is $280,000.00.

Assumptions

• The purchase price is the amount used for the calculation; it does not account for an appraisal or other valuation.
• The down payment is treated as a single amount paid at purchase.
• This is a simple subtraction calculation, not an amortization schedule; no interest rate, payment timing, or compounding is modelled.
• Closing costs, lender fees, taxes, insurance, PMI, escrow, prepaid items, and other transaction costs are not included.

1. Percentage-based down payment

A percentage-based down payment is a share of the home’s purchase price paid upfront, with the remainder forming the starting loan balance before any financed costs. For example, 10% of a $350,000 price is $35,000, leaving $315,000 to finance under this simplified calculation. It is useful for comparing scenarios at different prices because the cash amount changes in direct proportion to the purchase price; actual loan terms and any mortgage insurance requirements depend on the lender and transaction.

2. Fixed-dollar down payment

A fixed-dollar down payment starts with the amount of cash being considered, such as $50,000, rather than a target percentage. To compare it with a percentage, divide the cash amount by the purchase price and multiply by 100: $50,000 ÷ $350,000 × 100 is about 14.29%. This view can help show how a set cash contribution relates to different purchase prices, but the calculator’s percentage field must be adjusted to represent that amount and does not include other cash needed at closing.

3. Minimum-cash scenario

A minimum-cash scenario uses a small down payment amount or percentage to see how much of the purchase price would remain as a starting loan balance. The arithmetic is straightforward: a lower down payment generally means a higher amount financed, while a higher contribution means a lower amount financed, assuming the same price and no other additions. The calculator does not establish a minimum required by a loan program or lender, and it cannot determine whether a particular scenario is available; check current terms and requirements directly with the relevant lender or program.

How to Choose

First decide what you are comparing: a target percentage, a fixed amount of cash, or the resulting starting loan balance. Use the same purchase price for each comparison, then change the percentage to see how the upfront contribution and loan amount move together. If you begin with a fixed dollar amount, calculate its percentage of the price before entering it; this prevents mistaking dollars for a percentage.

Next, separate down payment cash from the full cash needed for a purchase. The calculator only subtracts the down payment from the stated price. It does not estimate closing costs, prepaid expenses, moving costs, reserves, taxes, insurance, interest, or mortgage insurance. Those amounts can affect the total funds required and should be obtained from the relevant transaction documents and lender rather than inferred from this result.

Finally, use lender-provided figures for loan terms, costs, and eligibility questions. A smaller starting balance does not by itself show the monthly payment, total interest, or whether a loan is available. Those calculations require additional inputs and may depend on terms not represented here. This page provides estimate arithmetic for education, not financial advice; the lender’s disclosure gives the exact figures.

Frequently Asked Questions

What does a down payment cover?
The calculator treats it as the portion of the purchase price paid upfront, reducing the starting loan balance by the same amount. It does not allocate cash to other purchase expenses.

Does the calculator include closing costs?
No. It only calculates the down payment and purchase price minus that payment. Obtain transaction-specific cost figures separately.

Does a 20% entry guarantee a particular loan term or avoid mortgage insurance?
No. The percentage is only a mathematical input here. Loan features, availability, and any insurance requirements depend on the applicable lender and loan terms.

Can I enter a 0% down payment?
Yes. The calculator allows 0% and will show a $0 down payment and a starting loan amount equal to the full purchase price. That result does not establish that financing is available on those terms.

Why is the starting loan amount not necessarily the final loan amount?
Some costs or other items may affect the amount ultimately financed, and lender terms may differ. This calculation only subtracts the entered down payment from the entered purchase price.

Final Thoughts

Comparing a percentage contribution, a fixed cash amount, and a low-cash scenario can clarify the basic relationship between upfront funds and the starting loan balance. Treat the result as a simple estimate, then use lender disclosures for exact transaction figures.

Related

• Escrow Account Disclosure Statement Explained
• Escrow Analysis Statement: What It Shows
• Annual Escrow Statement: What It Shows and Why

in price | Home purchase price | $ | 350000 | 0 | 100000000
in pct | Down payment | % | 20 | 0 | 100
out down | Down payment amount | $ | price * pct / 100 | 2
out loan | Starting loan amount | $ | price - down | 2