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About This Calculator
Determine how much you need to save for a home down payment and how long it will take based on your monthly savings rate. While 20% down eliminates private mortgage insurance, many loan programs accept significantly less. This calculator shows how different down payment percentages affect your monthly payment, PMI costs, and overall loan amount.
Quick Tips
- 1 Save in a high-yield account or money market fund while building your down payment.
- 2 Check state and local down payment assistance programs — many offer grants, not loans.
- 3 A 10% down payment eliminates many PMI costs while keeping cash in reserve.
Example Calculation
A buyer targets 20% down on a $400,000 home within 3 years, currently has $25,000 saved.
Target: $80,000 | Remaining: $55,000 | Monthly savings needed: $1,528 | PMI avoided: ~$200/month
How Much Down Payment Do You Need?
The amount you need for a down payment depends on your loan type and financial situation. Conventional loans require as little as 3% down, FHA loans need 3.5%, and VA loans require zero down payment. However, putting down 20% or more eliminates the need for private mortgage insurance (PMI), which can add $100-$300 per month to your payment. On a $350,000 home, a 20% down payment equals $70,000, while a 3.5% FHA down payment is just $12,250.
Down Payment Assistance Programs
Many state and local governments, as well as nonprofit organizations, offer down payment assistance programs for qualified buyers. These programs can provide grants that do not need to be repaid, forgivable second mortgages, or matched savings accounts. First-time homebuyers, low-to-moderate income households, and buyers in targeted geographic areas are most likely to qualify. Your state housing finance agency is the best starting point for finding programs available in your area.
How Down Payment Size Affects Your Mortgage
A larger down payment reduces your loan amount, which lowers your monthly payment and the total interest paid over the life of the loan. It also gives you immediate equity in your home and may help you qualify for a lower interest rate. On a $350,000 home, increasing your down payment from 5% to 20% reduces the loan by $52,500, saving roughly $125,000 in interest on a 30-year mortgage at 7% and eliminating PMI costs entirely.
Strategies to Save for a Down Payment Faster
Building a down payment fund requires a disciplined savings plan. Automating transfers to a dedicated high-yield savings account removes the temptation to spend. Consider reducing discretionary expenses, picking up a side income, or temporarily downsizing your living situation. Some buyers also tap into Roth IRA contributions (up to $10,000 in earnings for first-time homebuyers), receive gift funds from family, or explore employer-assisted housing programs offered by some large companies.
Frequently Asked Questions
No. While 20% avoids private mortgage insurance (PMI), many loan programs accept less. FHA loans require as little as 3.5%, conventional loans can go as low as 3%, and VA loans require 0%. However, a larger down payment means lower monthly payments.
Private mortgage insurance (PMI) is required when your down payment is less than 20% on a conventional loan. PMI typically costs 0.5% to 1.5% of the loan amount per year, adding $100-$300 per month on a $300,000 loan.
Yes. Many state and local governments offer down payment assistance programs, especially for first-time homebuyers. These can include grants, forgivable loans, or matched savings programs. Check your state housing authority for available options.
No. Financial advisors recommend keeping 3-6 months of emergency expenses separate from your down payment fund. You will also need cash for closing costs (2-5% of the price), moving expenses, and immediate home repairs.