There is no single best down payment percentage—it depends on your cash position and what you can afford to lose
The best down payment is the largest amount you can put down without dropping your liquid savings below three to six months of living expenses. That is the real rule. The 20% standard exists because it avoids mortgage insurance, but it is neither required nor always the smartest choice. Lenders accept 3% to 5% down on conventional mortgages, and some programs go lower. The actual question is not what percentage looks good—it is what you can afford to put down while keeping your emergency fund intact.
A smaller down payment means a higher monthly payment and mortgage insurance costs, but it also means you buy sooner instead of renting while you save. Whether that trade-off makes sense depends on your local rent, your job stability, and whether you have dependents. There is no universal answer, only the answer that fits your situation.
Key Takeaways
- You can buy with 3% to 5% down on a conventional mortgage, though you will pay mortgage insurance until your equity reaches 20%.
- The right down payment is the amount that leaves you with three to six months of living expenses in savings after closing.
- Putting down 5% now and paying mortgage insurance for eight years often costs less than waiting three years to save 20% and paying rent in the meantime.
- Your debt-to-income ratio matters more to lenders than your down payment size, so paying off credit cards before closing might lower your interest rate more than a larger down payment would.
- Mortgage insurance is not permanent—it disappears once your equity reaches 20% through down payment and principal paydown combined.
Why 20% is the standard but not the requirement
Private mortgage insurance (PMI) is the reason 20% became the cultural target. When you put down less than 20%, lenders charge PMI—a monthly fee that protects them if you default. It typically costs 0.5% to 1.5% of your loan amount per year, added to your monthly payment. On a $300,000 house with 5% down, PMI runs roughly $285 to $428 per month.
But PMI is temporary. Once your home equity reaches 20% through a combination of your down payment and the principal you have paid off, you can request removal. On a 30-year mortgage, this usually happens in 5 to 12 years depending on your initial down payment. If you put down 5%, you pay PMI longer than if you put down 15%, but the total cost difference is often smaller than the opportunity cost of waiting years to save an extra 15%.
The real calculation compares PMI cost against rent. If you put down 5% now and pay PMI for eight years, versus waiting three more years to save 20% and then buying, you need to add up the rent you would pay during those three years. In many markets, rent exceeds PMI plus the mortgage payment difference, which means buying sooner with a smaller down payment costs less overall.
The minimum down payment that keeps your emergency fund intact
Before you choose a percentage, calculate your actual monthly expenses and multiply by three to six months. That is your emergency fund floor. Your down payment should not drop your liquid savings below that number. This matters more than hitting any percentage target.
A house will break. The furnace fails. The roof leaks. The foundation cracks. If you have no cash left after closing, you will put these repairs on a credit card or take out a home equity loan at a worse rate than your mortgage. You will also be vulnerable if you lose income. A job loss or medical emergency becomes a foreclosure risk if you cannot cover the mortgage for a month or two.
A 10% down payment with a full emergency fund is safer than a 20% down payment that leaves you with $2,000 in the bank. If saving 20% down would drop your liquid savings below your floor, put down less. The percentage is secondary to the cash you keep.
When a larger down payment actually costs you money
Putting down more than 20% rarely makes financial sense. If mortgage rates are around 6% to 7%, and you could earn 4% to 5% in a high-yield savings account, you are better off putting down 20% and keeping the extra cash earning interest elsewhere. The difference in your monthly payment is smaller than the interest you would earn on the money you did not spend.
This is especially true if you have high-interest debt. If you have credit card balances at 18% to 22%, paying those down before increasing your down payment will save you far more money than avoiding PMI. Lenders also care about your debt-to-income ratio—the percentage of your monthly income that goes to debt payments. A lower ratio can get you a better interest rate, which compounds over 30 years. Paying off a credit card before closing might lower your rate by 0.25%, which saves tens of thousands of dollars over the life of the loan.
The exception is if you have cash sitting idle with no better use for it. If you have already maxed out retirement contributions, paid off high-interest debt, and have a full emergency fund, then putting down extra does not hurt. But it is not the priority.
How down payment size affects your monthly payment and total cost
A smaller down payment means a larger loan, which means a higher monthly payment. On a $300,000 house at 6.5% interest over 30 years, the differences are substantial:
| Down Payment | Loan Amount | Monthly Payment (P&I) | PMI (if applicable) | Total Monthly |
|---|---|---|---|---|
| 5% ($15,000) | $285,000 | $1,803 | $285–$428 | $2,088–$2,231 |
| 10% ($30,000) | $270,000 | $1,707 | $135–$203 | $1,842–$1,910 |
| 20% ($60,000) | $240,000 | $1,517 | $0 | $1,517 |
The monthly difference between 5% and 20% down is roughly $570 per month. Over 30 years, that is $205,000 in additional payments. But that number is misleading because it assumes you keep the mortgage for 30 years and never refinance. In reality, most people move or refinance within 7 to 10 years. If you refinance once your equity hits 20%, the PMI disappears and your payment drops. The total extra cost is much smaller than the 30-year number suggests.
Down payment programs and lower-down-payment options
If you do not have 20% saved, several loan types allow you to put down less. FHA loans allow down payments as low as 3.5%, though they require mortgage insurance for the life of the loan (not just until 20% equity). VA loans (for military members and veterans) often require zero down. USDA loans (for rural properties) also allow zero down for borrowers who meet income limits.
Many states and cities offer down payment information programs that provide grants or forgivable loans to first-time buyers. These vary widely by location—some cover 5% to 10% of the purchase price, others cover closing costs only. Your lender or a local housing counselor can tell you what is available where you are buying. These programs usually have income limits and require you to complete a homebuyer education course, but they cost nothing to explore.
Your debt-to-income ratio matters more than your down payment size
Lenders care about your down payment, but they care more about your debt-to-income ratio (DTI)—the percentage of your gross monthly income that goes to debt payments. Most lenders want your DTI below 43%, though some will go to 50% if your credit is strong and your down payment is large.
This means a smaller down payment with lower other debts can get you approved for a better rate than a larger down payment with high credit card or car payments. If you have $500 per month in credit card payments and you are trying to decide between putting down 10% or 15%, paying off the credit cards first might be the smarter move. It improves your DTI, which improves your rate, which saves more money than the extra 5% down would over the life of the loan.
Frequently Asked Questions
Is 10% down enough to buy a house?
Yes. You will pay mortgage insurance, which adds roughly $135 to $200 per month on a $300,000 loan, but you avoid years of saving for 20%. PMI disappears once your equity hits 20%, which usually takes 5 to 8 years. Whether 10% makes sense depends on whether you can afford the higher monthly payment and still maintain an emergency fund.
Should I delay buying to save 20% down?
Not automatically. If you are paying rent now, calculate whether three more years of rent plus the cost of waiting exceeds the mortgage insurance you would pay over the same period. In many markets, buying sooner with 10% down costs less than waiting. The math depends on your local rent and home prices.
What happens to PMI when my home value goes up?
Home appreciation does not automatically remove PMI. You have to request removal once your equity reaches 20% through a combination of down payment and principal paydown. Some lenders will remove it automatically at 22% equity, but you should not count on it. Ask your lender about their PMI removal policy before closing.
Can I use a gift for my down payment?
Yes, most lenders allow down payment gifts from family members. You will need a signed gift letter stating the money is a gift, not a loan, and the lender may ask the gift-giver to verify the funds are available. The gift does not have to be repaid, but the lender needs proof it is genuine.
Does a larger down payment get me a better interest rate?
Sometimes, but not always. Lenders price rates based on risk, and down payment is one factor among many. Your credit score, debt-to-income ratio, and loan type matter more. A 15% down payment with excellent credit might get a better rate than a 25% down payment with fair credit. Ask your lender for rate quotes at different down payment levels to see the actual difference.