Down Payment Guide: How Much Do You Really Need?

Ask a dozen people how much you need for a down payment and a lot of them will confidently say twenty percent. That number has hardened into folklore, but it is far from a requirement for most buyers. Plenty of loans close with three percent down, three-and-a-half percent, or even nothing down for eligible borrowers. The real question is not whether you must put down twenty percent — it is how much you should put down given your budget, your goals, and the trade-offs involved.

The down payment is the portion of the purchase price you pay upfront, in cash, at closing, while the mortgage covers the rest. Its size shapes three things from day one: how large your loan is, whether you pay for mortgage insurance, and how much equity you own the moment the keys are in your hand. Understanding each of these lets you choose an amount that fits your life instead of chasing a rule of thumb that may not apply to you.

Where the 20% Rule Comes From

The twenty-percent figure exists for one specific reason: private mortgage insurance, often called PMI. On a conventional loan, putting down less than twenty percent usually triggers a monthly PMI charge because the lender is taking on more risk with a smaller equity cushion. Reaching twenty percent lets you skip that charge. It has nothing to do with what you are legally required to save — and plenty of successful homebuyers never put down twenty percent at all.

Program Minimums

Every loan program has its own floor for the down payment. Here is how the most common options compare:

Conventional loans can go as low as 3% for qualifying borrowers, including many first-time buyers; 5% is common in other cases.
FHA loans start at 3.5% and are more forgiving of lower credit scores.
VA loans offer 0% down for eligible veterans, active-duty service members, and some surviving spouses.
USDA loans offer 0% down for eligible buyers in qualifying rural and suburban areas.

Each program carries its own eligibility rules, fees, and insurance requirements, so a lower down payment is not automatically the cheapest option over the life of the loan. The U.S. Department of Housing and Urban Development (HUD) maintains detailed guidance on FHA loans and other homebuying assistance, and it is worth reviewing before you commit to a program.

The PMI Trade-Off

When you put less than twenty percent down on a conventional loan, the lender typically requires PMI. It is an extra monthly cost added to your payment, and it can usually be removed once your equity reaches twenty percent — either through paying down the loan or through appreciation. The trade-off is simple: a smaller down payment gets you into the home sooner, but you carry an added monthly expense until that equity threshold is met. Whether that is a fair price depends on how quickly prices are rising in your market and how long you plan to stay.

The Case for a Bigger Down Payment

Smaller loan, lower payment. Borrowing less reduces the principal-and-interest payment every single month.
Potentially better rate. Lenders often price a larger down payment as lower risk, which can translate to a slightly lower rate.
Instant equity. More money down means you own more of the home from the start, which cushions you if values dip.
No mortgage insurance. At twenty percent or more, the PMI charge disappears on conventional loans.

Don't Drain Your Reserves

There is such a thing as putting down too much. If writing a large down payment check leaves you with nothing in savings, you have traded security for equity. Homes come with unexpected costs — a broken water heater, a leaky roof, a job change — and you will want cash on hand for them. Most experienced loan officers advise keeping several months of expenses available after closing, on top of whatever you put down. Stretching to hit twenty percent is rarely worth it if it empties your emergency fund.

The right down payment is the largest amount you can comfortably put down without leaving yourself short of cash reserves and closing costs.

Choosing Your Number

Start with what you can afford comfortably, then weigh the monthly math. If a 3% down payment fits your budget and the PMI is manageable, it may be the right call for a first-time buyer who wants to stop renting. If you have the savings and want the lowest possible monthly payment, a larger down payment may serve you better. There is no single correct answer — only the number that balances your cash position, your monthly payment, and how long you intend to stay in the home.

Run the numbers both ways with our mortgage calculator to see how different down payments change your payment and total interest. Every borrower's situation is different, so talk through your options with a loan officer before you lock anything in.

Related: Use our free mortgage calculator to model your own scenario, or read more in our blog.

Last reviewed: November 2, 2026 · Junior Franco

Junior is a former mortgage loan officer and underwriter with more than a decade of experience originating conventional, FHA, VA, and USDA loans. He writes plain-English guides that help homebuyers and homeowners understand the numbers behind their mortgage.