Down Payment Calculator

Calculate how much you need for a down payment, estimate your loan amount and monthly payment, and see how closing costs affect the total.

Down Payment Calculator

Purchase price of the property

$

Total cash on hand for down payment and closing costs

$

Share of the home price paid upfront

%
%

Annual mortgage rate

%

Length of the mortgage

years

Down Payment Breakdown

Home Price AUTO
$0.00
ItemAmount
Home Price $0.00
Down Payment $0.00
Closing Costs$0.00
Loan Amount$0.00
Monthly Payment$0.00
Down Payment: 0.00% Loan: 0.00%

Note: Since the down payment is less than 20%, you will likely be required to pay Private Mortgage Insurance (PMI).

Monthly payment covers principal and interest only — property taxes, homeowners insurance, HOA dues and PMI are not included.

How to Use the Down Payment Calculator

Choose how you want to calculate your down payment, enter your numbers, and get a clear breakdown of your home price, upfront cash, loan amount, and monthly payment.

Interactive mortgage calculator showing loan amounts, terms, and interest rates.

1

Choose What You Want to Calculate

Select the calculation that matches what you already know: home price, cash needed, or down payment percentage. This makes it easy to work backward from your budget or compare different options.

2

Enter Your Purchase Details

Add your available cash or target home price, then enter your desired down payment. You can also include closing costs to get a more complete picture of how much you’ll need upfront.

3

Add Your Loan Details

Enter your interest rate and loan term to see how your down payment affects the loan amount and estimated monthly payment.

4

Compare Your Results

Review your down payment, home loan amount, closing costs, and monthly payment in one place. Try different numbers to see what fits your budget before buying a house.

See What Your Down Payment Really Means

Whether you’re buying a home or comparing loan options, see how your down payment affects the amount you’ll need upfront and what you may pay each month.

Plan Your Upfront Costs

See how your down payment and closing costs add up so you know how much cash you may need before buying a house.

Compare Loan Options

Change your down payment, interest rate, and loan term to see how different choices affect your loan amount and monthly payment.

Work Back From Your Budget

Not sure how much house you can afford? Start with the cash you have available and use the calculator to estimate a home price that fits your budget and income.

Explore Different Scenarios

Try a larger or smaller down payment and compare the results. You can also see how extra payments could affect your mortgage over time.

Benefits of calculating down payments with InvoiceFly including workflow integration.

Mortgage Payment Formula

The monthly payment formula used in the calculator is:

M = P × [r(1+r)ⁿ / ((1+r)ⁿ − 1)]

Where M is your monthly payment, P is your loan principal, r is your monthly interest rate, and n is the total number of monthly payments.

Down Payment Calculation Example

For a $400,000 home with a 20% down payment, you’d put $80,000 down and finance the remaining $320,000. Add your closing costs, interest rate, and loan term to get a clearer estimate of your upfront cash and monthly payment.

Compare Different Down Payment Options

A larger down payment means borrowing less, while a smaller one means taking on a larger loan. Try different percentages in the down payment calculator to see how your upfront costs and monthly payment change.

Avoid Common Calculation Mistakes

Don’t look at the down payment alone. Mortgage rates, interest rate, closing costs, loan term, and your available income can all affect what you can realistically afford. Use the calculator to compare the numbers before choosing a home loan.

Should You Put More or Less Money Down?

The size of your down payment affects how much you borrow, what you pay upfront, and potentially how much interest you pay over time. A larger down payment can reduce your home loan, while a smaller one can leave more of your income available for other expenses. Use the calculator to compare both options before deciding what works for you.

When a Larger Down Payment Makes Sense

Putting more money down means borrowing less. That can lower your monthly payment and reduce the total interest you pay over the life of the loan. Depending on the loan, a larger down payment may also help you avoid mortgage insurance or qualify for better mortgage rates.

When a Smaller Down Payment May Be Better

A smaller down payment means less cash tied up in your home at closing. This can leave more money available for moving costs, emergencies, renovations, or other financial goals. However, borrowing more can mean higher monthly payments and more interest over time.

Compare Your Options Before You Buy

There isn’t one right average down payment for every buyer. Your budget, income, loan type, interest rate, and other costs all matter. Try different percentages in a down payment calculator to see how each option changes your loan amount and monthly payment.

Try the down payment calculator

How Can You Fund Your Down Payment?

Your down payment doesn’t have to come from just one source. Depending on your situation and loan requirements, you may be able to combine your savings with other sources of funds.

Savings balance $18,500 ready to use

Use Your Savings

Personal savings are one of the most common ways to fund a down payment. Make sure you also have enough set aside for closing costs, moving expenses, and unexpected costs.

Assistance programs See what you qualify for

Look Into Assistance

Some buyers may qualify for down payment assistance programs. Availability and eligibility vary by location, income, property, and loan type.

Gift documented $10,000 · confirmed

Consider Gift Funds

Some mortgage programs allow eligible buyers to use money gifted by family. Lenders may require documentation confirming the money is a genuine gift.

Other options Retirement funds & more

Explore Other Financing

You may have other ways to cover part of your upfront costs. Understand the fees, interest, and repayment requirements before using them.

Know How Much Cash You Actually Need

Your upfront cost isn’t just the down payment. You’ll also need to account for closing costs and other purchase expenses — see the full picture before you buy.

Calculate Down Payment Free

Down Payment Calculator FAQs

To calculate your down payment, multiply the home price by your desired down payment percentage. For example, a 20% down payment on a $300,000 home would be $60,000. Use our down payment calculator to quickly work out the amount and see your estimated loan amount and monthly payment.

Start with the home price and the percentage you plan to put down. Multiply the two to find your down payment amount, then subtract it from the home price to find your home loan amount. You can also add closing costs to estimate how much cash you'll need upfront.

The amount you need depends on the percentage required by your loan and lender. For example, a 10% down payment on a $300,000 house would be $30,000, while a 20% down payment would be $60,000. Use the calculator to compare different percentages and see how they affect your loan.

A 30% down payment is calculated by multiplying the home price by 0.30. For a $300,000 house, that would be $90,000. A larger down payment means a smaller amount to finance, which can reduce your estimated monthly mortgage payment.

A good down payment depends on your budget, loan type, and financial goals. Putting more money down can reduce your home loan and monthly payment, while a smaller down payment can help you keep more cash available for other expenses.

Your down payment can affect the terms of your mortgage, including the interest rate you may qualify for. A larger down payment can also reduce the amount you need to borrow. Compare different down payment amounts to see how they change your estimated loan and monthly payment.

No. Your down payment goes toward the purchase price of the home, while closing costs are separate expenses associated with completing the purchase. When planning how much cash you need, make sure you account for both.

Know How Much You Need for Your Down Payment

Use our free down payment calculator to see how much cash you’ll need upfront, including your down payment and closing costs, and estimate your home loan and monthly payment.