The down payment amount depends on your loan type, not a fixed rule

There is no single "right" down payment. What you put down depends on which mortgage program you use, how much you can afford to save, and what trade-offs you are willing to make. A conventional loan from a bank might let you put down 3 percent. An FHA loan might require 3.5 percent. A VA loan (if you may have access to) might require zero. The percentage you choose affects your monthly payment, how much interest you pay over time, and whether you pay mortgage insurance.

The core trade-off is straightforward: a larger down payment means a smaller loan, lower monthly payments, and no mortgage insurance. A smaller down payment means you keep more cash in your pocket now, but you pay more in interest and insurance over the life of the loan. Neither choice is wrong — it depends on your situation.

Key Takeaways

  • Conventional loans typically allow down payments as low as 3 percent, while FHA loans require 3.5 percent and VA loans may require zero.
  • Putting down less than 20 percent on a conventional loan means you will pay private mortgage insurance (PMI) until you reach 20 percent equity.
  • A larger down payment lowers your monthly payment and total interest paid, but a smaller down payment preserves cash for emergencies and other needs.
  • Your debt-to-income ratio and credit score affect how much lenders will lend you, regardless of how much you want to put down.

How down payment size changes your monthly cost

The relationship between down payment and monthly payment is direct. On a $300,000 house with a 30-year mortgage at 7 percent interest, putting down 3 percent ($9,000) means borrowing $291,000. Putting down 20 percent ($60,000) means borrowing $240,000. The difference in principal is $51,000, which translates to roughly $340 more per month in principal and interest alone.

But the real cost difference is larger because of mortgage insurance. With less than 20 percent down on a conventional loan, you pay private mortgage insurance (PMI). On a $291,000 loan, PMI might run $150 to $200 per month depending on your credit score and the exact loan terms. That insurance disappears once you reach 20 percent equity in the home — either through payments or home appreciation — but until then it is an extra cost that a 20 percent down payment avoids entirely.

The total cost of a smaller down payment compounds over time. You are paying interest on a larger loan for 30 years, plus insurance for however long it takes to reach 20 percent equity. Over the life of the loan, a 3 percent down payment can cost $100,000 to $150,000 more than a 20 percent down payment on the same house.

What lenders actually require versus what you can afford

Lenders set a minimum down payment based on the loan program, but they also set a maximum loan amount based on your income and debts. This is called your debt-to-income ratio (DTI). Most lenders will not lend you more than 43 to 50 percent of your gross monthly income when you add up all your debts — car loans, credit cards, student loans, and the new mortgage payment.

This means you might be able to put down only 3 percent, but the lender might not lend you enough to buy the house you want. If you earn $60,000 per year ($5,000 per month), your maximum total debt payment is roughly $2,150 to $2,500 per month. A $300,000 mortgage at 7 percent runs about $1,996 per month in principal and interest alone, plus taxes, insurance, and PMI. Add a car payment and credit card debt, and you hit the ceiling quickly. In that case, you would need to put down more money to lower the loan amount, or look at a less expensive house.

Your credit score also matters. A score above 740 gets you better interest rates and lower PMI costs. A score below 620 may disqualify you from conventional loans entirely, forcing you into FHA or other programs with different terms.

The case for putting down less than 20 percent

Putting down 3 to 10 percent makes sense if you have limited savings and want to buy sooner rather than wait five more years to save 20 percent. The math works if you plan to stay in the house long enough for the lower monthly payment to offset the extra interest and insurance costs — usually five to seven years or more.

A smaller down payment also preserves your emergency fund. Homeownership brings unexpected costs: a roof repair, a furnace replacement, foundation work. If you drain your savings to put down 20 percent, you have no cushion when the water heater fails three months after closing. Keeping $15,000 to $20,000 in savings while putting down 5 percent is often smarter than maxing out your down payment and having nothing left.

Putting down less also lets you buy in a stronger market position. If you are competing with other buyers and your offer includes proof that you have cash reserves, lenders view you as lower risk. A smaller down payment with substantial savings in the bank can be more attractive to a seller than a larger down payment with no reserves.

The case for putting down 20 percent or more

If you have the cash and plan to stay in the house for 10 years or longer, 20 percent down eliminates mortgage insurance and lowers your monthly payment significantly. You also build equity faster and have more negotiating power with lenders — they compete harder for borrowers with large down payments and strong credit.

A 20 percent down payment also protects you if the housing market declines. If you put down only 3 percent and the home value drops 5 percent in the first two years, you are underwater — you owe more than the house is worth. With 20 percent down, you have a cushion. The house would have to drop 20 percent in value before you are underwater.

Putting down more than 20 percent rarely makes financial sense unless you have cash sitting idle that you are not using elsewhere. The interest rate on a mortgage (currently 6 to 8 percent) is often lower than what you could earn in a high-yield savings account (4 to 5 percent) or other investments. If you can earn 5 percent in savings and your mortgage costs 7 percent, the math favors putting down less and investing the difference — though this assumes you actually invest it rather than spend it.

How to decide between down payment amounts

Start by calculating what you can actually afford to put down without depleting your savings. A reasonable target is to keep three to six months of living expenses in an emergency fund after closing. If your monthly expenses are $4,000, keep $12,000 to $24,000 in the bank. Whatever is left over is available for a down payment.

Next, get pre-approved by a lender. This tells you the maximum loan amount you may have access to for and the interest rate you would receive at different down payment levels. Most lenders show you the monthly payment at 3, 5, 10, and 20 percent down so you can see the actual difference in your situation.

Then run the numbers for your timeline. If you plan to sell or refinance in five years, a smaller down payment might cost you less overall because you will not be in the house long enough to recoup the extra interest and insurance. If you plan to stay 15 years, 20 percent down usually wins. Use a mortgage calculator that includes PMI to see the total cost at each down payment level.

Finally, consider your risk tolerance. If losing your job would force you to sell quickly, a larger down payment and lower monthly payment give you more breathing room. If you have stable income and a strong emergency fund, a smaller down payment is less risky.

Down payment programs and special cases

Some employers, nonprofits, and state programs offer down payment help. These typically come as grants (money you do not repay) or forgivable loans (loans that disappear if you stay in the house for a set period). The amount varies widely — some programs cover 3 to 5 percent of the purchase price, others cover up to 15 percent. You usually have to meet income limits and buy in a specific area.

If you are a first-time buyer, check whether your state or city has a down payment information program. The National Council of State Housing Agencies maintains a list by state. If you are a veteran, a VA loan might let you put down zero percent. If you are buying in a rural area, a USDA loan might also allow zero down.

These programs change frequently and have different rules about which loans they work with, income limits, and property types. A mortgage broker or loan officer can tell you which programs you might may have access to for based on your situation.

Frequently Asked Questions

What happens if I put down less than 20 percent?

You will pay private mortgage insurance (PMI) on a conventional loan, which typically costs 0.5 to 1.5 percent of the loan amount per year. This insurance protects the lender if you default. PMI disappears once you reach 20 percent equity through payments or home appreciation, which usually takes five to ten years depending on the market and your down payment size.

Can I borrow money for my down payment?

Most lenders will not allow you to borrow the down payment from another lender, because it increases your debt-to-income ratio and your total risk. Some lenders allow a gift from a family member if you document it as a gift, not a loan. Check with your lender about their specific gift policy before accepting money from anyone.

Is there a penalty for putting down more than 20 percent?

No. Putting down 25, 30, or 50 percent is allowed and lowers your monthly payment and total interest. The only downside is that you are using cash that could be invested elsewhere or kept as emergency savings. There is no financial advantage to putting down more than 20 percent unless you have excess cash with nowhere else to put it.

What if I cannot save 20 percent before I need to buy?

You can buy with 3 to 10 percent down on most conventional, FHA, or USDA loans. You will pay mortgage insurance and higher monthly payments, but you will own the home and build equity. As your home appreciates or you pay down the principal, you can refinance to remove the insurance once you reach 20 percent equity.

Does a larger down payment help me get approved?

Yes, it can. A larger down payment lowers the lender's risk and may help you may have access to for a better interest rate or get approved when your debt-to-income ratio is tight. It also makes your offer more competitive in a multiple-offer situation because sellers and lenders see it as a sign of financial stability.