Down Payment Calculator

How Much House Down Payment Do You Really Need?

Every home purchase starts with the same question: how much money do you actually need up front? A down payment calculator takes the guesswork out of the answer by showing you the exact dollar amount for any home price and percentage, and how that choice ripples into your loan amount, monthly payment, and whether you'll pay PMI. There is no single right number — the right down payment balances what you can afford today against what it costs you every month for years to come.

Conventional Mortgage Down Payment Minimums

A conventional mortgage down payment can be as low as 3% for qualified first-time buyers, though most lenders prefer 5% or more. Conventional loans are not backed by a government agency, so requirements are set by the lender and by Fannie Mae or Freddie Mac guidelines. The trade-off for a lower down payment is Private Mortgage Insurance, which stays in place until you reach 20% equity. Use the comparison table above to see exactly how much PMI adds to your monthly payment at 3%, 5%, 10%, or 15% down.

FHA, VA and USDA Down Payment Requirements

FHA loans require just 3.5% down with a credit score of 580 or higher, making them popular with first-time buyers. VA loans, available to eligible veterans and service members, and USDA loans, for eligible rural and suburban properties, can both require 0% down. Each program carries its own insurance or guarantee fee structure instead of standard PMI, so it's worth running your numbers through this calculator under each loan type to compare the real monthly cost.

Down Payment vs. PMI: Finding Your Break-Even Point

Private Mortgage Insurance typically costs 0.2% to 1.5% of your loan amount every year, added directly to your monthly payment until you reach 20% equity. On a $350,000 home with 10% down, that can mean well over $100 a month disappearing into insurance rather than your loan balance. The equity bar and comparison table on this page show, side by side, what you gain by pushing your down payment higher versus what you free up by keeping more cash in hand. There is no universal answer — it depends on your savings, your other financial goals, and how soon you expect to reach 20% equity anyway through regular payments.

Using a Pay Down Loan Calculator to Compare Down Payment Scenarios

The comparison table above functions as a built-in pay down loan calculator: instead of re-running the numbers manually for every down payment size, it lays out your loan amount, principal and interest, PMI status, and total monthly payment across several realistic scenarios for your selected loan type. This is the same approach smart buyers use before making an offer — comparing a 5% down payment against 10%, 15%, and 20% to see precisely where PMI disappears and how much that changes the true cost of ownership each month.

How a Bigger Down Payment Helps You Pay Off Your Home Loan Early

A larger down payment doesn't just lower your monthly payment — it shrinks the loan balance that interest accrues against from the very first day. A smaller starting balance means more of every payment chips away at principal rather than interest, and it makes any extra payment you add later go even further. Think of your down payment as the first, largest "extra payment" you'll ever make on the loan.

Pay Down My Mortgage Calculator: Modeling Extra Payments

The payoff calculator above acts as a pay down my mortgage calculator and a pay off home loan early calculator in one: enter any extra monthly amount and instantly see the new payoff date, the total interest saved, and how many years you'll cut off your term. Combining a healthy down payment with even a modest extra payment — $100 or $200 a month — routinely saves tens of thousands of dollars in interest over a 30-year loan and can shave several years off the finish line. Whether you think of it as a home loan pay off early calculator or simply a way to stress-test extra payments, the math works the same: run a few amounts and compare the results before committing to a budget.

Saving for Your Down Payment: A Realistic Timeline

Most buyers don't have their full down payment sitting in a checking account — they build it over months or years of consistent saving. The savings timeline tool above takes your current balance and monthly contribution and projects exactly when you'll hit your target, so you can set a realistic house-hunting date instead of guessing. Small, consistent increases to your monthly savings rate — redirecting a raise, a bonus, or a canceled subscription — can move that target date up by months at a time.

Down Payment Assistance and Gift Funds

You don't always have to save the entire amount yourself. Many state and local housing agencies offer down payment assistance programs in the form of grants or low-interest second loans, particularly for first-time buyers. Family members can also contribute a documented cash gift toward your down payment on most loan types, subject to lender paperwork requirements. Check the U.S. Department of Housing and Urban Development and your state housing finance agency for programs you may qualify for before assuming you need to save every dollar alone.

Down Payment Size and Your Interest Rate

Lenders price risk, and loan-to-value is one of the biggest inputs into that pricing. A larger down payment lowers the loan-to-value ratio, which can help you qualify for better rate tiers and avoid risk-based pricing adjustments that lenders sometimes add on smaller down payments. This effect is separate from PMI — even on loans that don't require mortgage insurance, such as VA loans, a stronger down payment signals lower risk. It's still worth shopping multiple lenders and comparing full Loan Estimates side by side, since underwriting overlays and pricing vary company to company even at the same down payment level.

Common Down Payment Mistakes to Avoid

The most common mistake is draining every available dollar into the down payment and leaving nothing for closing costs, moving expenses, or an emergency fund. Lenders generally want to see reserves left over after closing, and unexpected repairs are common in the first year of homeownership. Another frequent misstep is assuming 20% down is mandatory — many buyers delay a purchase for years chasing that number while home prices and rates move against them, when a well-run comparison of a smaller down payment with PMI might have made more financial sense. Finally, some buyers overlook down payment assistance and gift fund options entirely, assuming they have to save the full amount solo.

Getting the Most Out of This Down Payment Calculator

Start with your realistic home price range and your current savings, then compare down payment percentages using the table above to see the true monthly cost of each option, including PMI. Next, use the savings timeline tool to map out how long it will take to reach your chosen target. Finally, once you have a loan amount, run it through the payoff calculator to see how extra monthly payments — even small ones — can accelerate your path to owning the home outright. Revisit these numbers whenever your rate, savings rate, or target home price changes, since even small shifts in interest rate or home price can move your break-even point for PMI and your realistic savings timeline. Read more about the mechanics behind these numbers on the Consumer Financial Protection Bureau's down payment guide.