Down Payment Calculator

Introduction

Sarah, a 31-year-old marketing manager in Charlotte, has $22,000 saved and wants to buy a $320,000 townhouse. She assumes she needs 20% down, which is $64,000. At her current savings rate of $800 per month, that is more than four years away. She is about to give up on homeownership entirely.

She does not need 20% down. The National Association of REALTORS reports that the median down payment for first-time home buyers is approximately 10%, not 20%. Conventional loans require as little as 3% down, FHA loans start at 3.5%, and VA and USDA loans require zero down for eligible borrowers. With a 3.5% FHA down payment on that same $320,000 townhouse, Sarah needs $11,200 plus closing costs. She could buy within months, not years.

This calculator helps you figure out how much to save, how long it will take, and how different down payment percentages change your monthly costs. It factors in closing costs and private mortgage insurance (PMI), which most conventional loans require when your down payment is below 20%.

Inputs Required

• Home Price: The purchase price of the home you are targeting
• Down Payment Percentage: The portion of the purchase price you plan to pay upfront
• Current Savings: How much you have already saved toward the down payment
• Monthly Savings Contribution: How much you can save each month going forward
• Savings Account Rate: The annual interest rate on your savings account
• Mortgage Rate: The expected interest rate on your home loan

Outputs Provided

• Down Payment Needed: The target dollar amount based on your chosen percentage
• Estimated Closing Costs: Approximated at 3% of the home price
• Time to Save: How long it will take to reach your savings goal
• Monthly Mortgage Payment: Estimated principal and interest payment
• PMI Estimate: Monthly private mortgage insurance cost if down payment is under 20%
• Down Payment Comparison Table: Side-by-side comparison of common down payment amounts

How the Calculation Works

The time-to-save calculation accounts for compound interest on your existing savings and monthly contributions. The closing cost estimate of 3% is a general approximation. Actual closing costs vary by state, lender, and loan type and typically range from 2% to 5% of the purchase price.

PMI rates vary by lender and borrower profile. The 0.7% annual rate used here is a common mid-range estimate. PMI is automatically removed once your loan balance reaches 80% of the home's original value under the Homeowners Protection Act. For a deeper look at how your monthly payment breaks down over time, use our Amortization Calculator.

Current Mortgage Rates and FHA Limits (July 2026)

As of July 2026, the 30-year fixed mortgage rate averages 6.49% according to Freddie Mac's Primary Mortgage Market Survey. The 15-year fixed averages 5.84%. These rates have held within a narrow band throughout the first half of 2026. For FHA loans, 2026 loan limits range from $541,287 in most of the country to $1,249,125 in high-cost areas like San Francisco and New York. FHA loans require 3.5% down with a credit score of 580 or higher, or 10% down with a score between 500 and 579. According to HUD data, 82.64% of FHA purchase loans went to first-time home buyers in fiscal year 2024.

To see how much house you can afford based on your income and debts, try our House Affordability Calculator. For FHA-specific calculations including mortgage insurance premiums, use our FHA Loan Calculator.

How to Use the Calculator

1. Enter the home price you are targeting
2. Select or enter your desired down payment percentage
3. Input your current savings and monthly savings contribution
4. Enter your savings account interest rate
5. Input your expected mortgage rate (the 30-year average is 6.49% as of July 2026)
6. Review the savings timeline and monthly payment estimates
7. Check the comparison table to see how different down payment amounts affect your monthly costs

Example Calculations

Example 1: 20% Down on a $350,000 Home

A buyer targets a $350,000 home with a 20% down payment at the current 6.49% mortgage rate:

• Down payment needed: $70,000
• Estimated closing costs: $10,500
• Total needed: $80,500
• With $30,000 saved and $1,000/month contributions at 4.5%, goal reached in about 4 years
• Monthly mortgage (30yr): approximately $1,762 with no PMI
• Choosing 10% down instead would add approximately $164/month in PMI

Example 2: 3.5% FHA Down Payment on a $300,000 Home

A first-time buyer with a credit score of 640 targets a $300,000 home using an FHA loan:

• Down payment needed: $10,500
• Estimated closing costs: $9,000
• Total needed: $19,500
• With $8,000 saved and $600/month contributions at 4.0%, goal reached in about 20 months
• FHA upfront mortgage insurance premium: 1.75% of loan amount ($5,148, typically financed)
• FHA annual mortgage insurance: 0.55% of loan balance, approximately $132/month

Real-World Scenarios

First-Time Buyer on a Tight Budget

Marcus, a 27-year-old teacher in Atlanta, can save $500 per month and wants to buy a $280,000 condo. He has $6,000 saved. Using a 3% conventional down payment of $8,400 plus $8,400 in closing costs, he needs $16,800 total. At $500 per month with 4% savings interest, he reaches his goal in about 22 months. The trade-off is paying PMI of approximately $123 per month on top of his mortgage. He uses the comparison table to see that waiting two more years to reach 10% down would cut his PMI in half but cost him $28,000 in rent during that period. The math favors buying sooner.

Buyer Weighing 10% vs. 20% Down

Jennifer, a 35-year-old software engineer in Austin, has $55,000 saved toward a $400,000 home. A 10% down payment of $40,000 gets her in now, but she pays approximately $189 per month in PMI. Waiting to save the full 20% ($80,000) eliminates PMI and saves about $34,000 over the life of the loan. However, at her current savings rate of $1,200 per month, reaching $80,000 plus closing costs takes another 30 months. During that time, home prices in her target neighborhood are rising 3% annually, adding $36,000 to the purchase price. The comparison table helps her see that buying now at 10% down is actually cheaper when home price appreciation is factored in.

Accelerating Savings with a High-Yield Account

David, a 29-year-old nurse in Phoenix, has $35,000 in a traditional savings account earning 0.45% APY. He contributes $1,500 per month toward a $50,000 down payment goal. By switching to a high-yield savings account at 4.5% APY, his existing balance earns an additional $1,400 in interest over the savings period. The calculator shows this change shaves 5 months off his timeline, letting him buy in 10 months instead of 15.

Why This Calculation Matters

Your down payment size affects your loan amount, monthly payment, interest cost over time, and whether PMI is required. It also influences how quickly you build equity. A larger down payment reduces risk for both you and the lender, which is why rates are sometimes lower for borrowers who put more down.

Planning your savings timeline in advance lets you set a realistic target date, choose the right savings vehicle, and avoid rushing into a purchase before you are financially prepared. For a full picture of your monthly housing costs including property taxes and insurance, use our Mortgage Calculator.

Common Mistakes to Avoid

• Forgetting closing costs: Many buyers save for the down payment but overlook closing costs, which can add 2% to 5% to the purchase price. Always include them in your total savings target
• Emptying your emergency fund: Using every saved dollar for the down payment leaves nothing for unexpected repairs or job loss. Keep 3 to 6 months of expenses in reserve
• Underestimating PMI duration: PMI is not automatically removed at 20% equity in all cases. You may need to request cancellation or refinance to eliminate it
• Ignoring loan type differences: FHA loans require a minimum 3.5% down but carry their own mortgage insurance premiums that last the life of the loan (for loans originated after June 2013). VA and USDA loans require no down payment for eligible borrowers. Each loan type has different total cost implications
• Waiting too long to buy: While saving for a larger down payment, home prices may rise faster than your savings grow. The calculator helps you compare the cost of waiting against the cost of PMI

Limitations of This Calculator

This calculator provides estimates based on the inputs you provide. The PMI estimate of 0.7% is a mid-range figure. Actual PMI rates range from 0.5% to 1.5% depending on your credit score, loan type, and down payment amount. The closing cost estimate of 3% is a national average. In states with high transfer taxes or attorney requirements, closing costs can reach 5%. This tool does not account for property taxes, homeowners insurance, or HOA fees, which add to your total monthly housing payment. It does not replace a Loan Estimate from a licensed lender, which provides exact figures based on your specific situation.

Authoritative Research and Resources

• Freddie Mac Primary Mortgage Market Survey - The authoritative source for current mortgage rates, updated weekly. As of July 2026, the 30-year fixed averages 6.49% and the 15-year fixed averages 5.84%.
• NAR Profile of Home Buyers and Sellers - The National Association of REALTORS annual report showing that the median first-time buyer down payment is approximately 10%, far below the commonly cited 20%.
• HUD FHA Loan Limits and Requirements - Official Department of Housing and Urban Development page with 2026 FHA loan limits ($541,287 base, $1,249,125 high-cost) and down payment requirements by credit score.