How to use this calculator
Start by entering the purchase price of the home you are considering. This is the single most important number because everything else scales from it.
Next, choose your down payment percentage using the preset buttons or enter a custom amount. The calculator will automatically update the total cash needed, monthly payment estimate, and PMI status as you adjust.
Review the prepaid items section and adjust the property tax and insurance figures if you have better estimates for your area. The defaults are reasonable national averages, but local costs can vary significantly. Your real estate agent or insurance broker can provide more accurate numbers.
Use the down payment comparison table at the bottom to see how different down payment levels affect your total cash needed and monthly payment. This makes it easy to weigh the tradeoff between bringing more cash upfront and keeping a lower monthly obligation.
What first time buyers often miss
Most first time buyers focus exclusively on the down payment when saving for a home. The down payment is the largest single line item, but it is usually only about 60% to 70% of the total cash you need at the closing table. Closing costs, prepaid items, and escrow deposits make up the rest, and they can easily add $10,000 to $20,000 on a typical home purchase.
Closing costs cover services like the appraisal, title search, title insurance, attorney fees, loan origination fees, and recording fees. These costs vary by state and lender but generally fall between 2% and 5% of the purchase price.
Prepaid items are future expenses you pay upfront at closing. Your lender requires a cushion in your escrow account for property taxes and insurance. You also prepay mortgage interest for the days between your closing date and the end of that month. These are real costs that catch many buyers off guard because they do not appear on a basic mortgage calculator.
Earnest money is another item that confuses new buyers. It is a deposit you make when your offer is accepted, typically 1% to 3% of the purchase price. The good news is that this amount is credited toward your down payment at closing. You are not paying it on top of everything else. Think of it as an early installment on your down payment.
Down payment options explained
3% conventional loan is the minimum for many conventional loan programs like Fannie Mae HomeReady or Freddie Mac Home Possible. These programs are designed for first time or low to moderate income buyers. PMI is required, and your interest rate may be slightly higher than with a larger down payment.
3.5% FHA loan is backed by the Federal Housing Administration and popular with first time buyers because of more lenient credit score requirements. FHA loans require both an upfront mortgage insurance premium (1.75% of the loan) and annual mortgage insurance that lasts for the life of the loan if you put less than 10% down.
5% to 10% down gives you more equity from the start and usually means lower PMI premiums. You will also have a better chance of winning a competitive offer because sellers see a larger down payment as a sign of financial strength.
20% down eliminates PMI entirely, which can save you $100 to $300 per month depending on the loan size. It also gives you instant equity and often qualifies you for the best interest rates. The tradeoff is that it takes significantly longer to save and ties up more of your cash in the home.
How to reduce your cash needed at closing
Seller concessions are one of the most effective tools. In many markets, you can negotiate for the seller to cover a portion of your closing costs, typically up to 3% to 6% of the purchase price depending on the loan type. This reduces the cash you need without changing your down payment.
Lender credits allow you to accept a slightly higher interest rate in exchange for the lender covering some or all of your closing costs. This increases your monthly payment but reduces the cash you need at closing. It can be a smart move if you plan to refinance in a few years when rates drop.
Down payment assistance programs are available in most states and many cities. These programs offer grants, forgivable loans, or low interest second mortgages to help with the down payment and closing costs. Eligibility is usually based on income, location, and first time buyer status. Your lender or a HUD approved housing counselor can help you find programs in your area.
Closing at the end of the month also reduces prepaid interest because you only pay for a few days instead of two or three weeks. On a $300,000 loan at 6.5%, the difference between closing on the 1st and the 28th of the month is roughly $1,400 in prepaid interest.
Frequently asked questions
How much cash do I need to buy a house besides the down payment?
Beyond the down payment, you typically need 2% to 5% of the purchase price for closing costs, plus prepaid items like property tax escrow, homeowners insurance, and prepaid interest. For a $350,000 home with 10% down, the total cash needed is usually $55,000 to $65,000 depending on your location and loan terms.
Is earnest money additional cash on top of the down payment?
No. Earnest money is paid upfront when your offer is accepted, but it is credited toward your down payment at closing. It is not an extra cost on top of the down payment. Think of it as paying part of your down payment early to show the seller you are serious.
What are prepaid items at closing?
Prepaid items are costs you pay at closing that cover future expenses. They typically include several months of property tax held in an escrow account, a full year of homeowners insurance paid upfront plus two months of escrow, and prepaid mortgage interest covering the days between closing and your first payment.
Can I avoid PMI with less than 20% down?
There are a few options. Some lenders offer lender paid mortgage insurance where you accept a slightly higher interest rate instead of a monthly PMI charge. VA loans do not require PMI at any down payment level. Some credit unions and community banks offer portfolio loans without PMI. You can also look into piggyback loans, which use a second mortgage to reach 20% equity.