The down payment is what you save; the rest comes from a mortgage

When you buy a house, you do not need to save the full purchase price. You save for a down payment—the money you give upfront—and then borrow the rest through a mortgage loan from a bank. The down payment is typically between 3 percent and 20 percent of the home's price, depending on the loan type and your financial situation. A house that costs $300,000 might require a down payment of $9,000 to $60,000.

The exact amount you need to save depends on three things: the price of the home you want to buy, the down payment percentage your lender will accept, and whether you can afford the monthly mortgage payment on top of your down payment savings. Many first-time buyers focus only on the down payment and then discover they cannot afford the monthly payment—so you need to think about both.

Key Takeaways

  • A down payment is typically 3 to 20 percent of the home price, so a $300,000 house requires $9,000 to $60,000 saved.
  • Lower down payments (3 to 5 percent) require mortgage insurance, which adds to your monthly payment but lets you buy sooner.
  • Your monthly mortgage payment should not exceed 28 percent of your gross monthly income, which determines the maximum home price you can afford.
  • Closing costs—fees paid at purchase—typically add 2 to 5 percent of the home price on top of your down payment.
  • Saving for a house also means building an emergency fund and paying down high-interest debt before you start the mortgage process.

How down payment percentage affects what you save and what you pay monthly

A smaller down payment means you save less upfront but borrow more, which increases your monthly payment. A larger down payment means you save more upfront but borrow less, which decreases your monthly payment. The trade-off is real, and which path makes sense depends on your situation.

With a 3 percent down payment on a $300,000 house, you save $9,000 and borrow $291,000. With a 20 percent down payment on the same house, you save $60,000 and borrow $240,000. The difference in monthly payment is roughly $300 to $400 per month over 30 years. If you can save the extra $51,000 in a reasonable timeframe, the lower monthly payment often makes sense. If saving that much would take five more years, the 3 percent option lets you buy now and build equity while you live in the home.

One important detail: down payments below 20 percent trigger mortgage insurance, a monthly fee the lender charges to protect themselves if you default. This insurance typically costs 0.5 to 1 percent of the loan amount per year, added to your monthly payment. So a 5 percent down payment is not simply "less money saved"—it also costs you more each month until you have paid down the loan enough to remove the insurance. Ask your lender what the mortgage insurance cost would be at different down payment levels.

Calculating the monthly payment you can actually afford

Before you decide how much to save, figure out what monthly payment your income can support. Most lenders will not approve a mortgage where your monthly payment exceeds 28 percent of your gross monthly income (the money you earn before taxes). If you earn $4,000 per month gross, your maximum monthly payment is roughly $1,120.

That $1,120 includes the principal and interest on the loan, property taxes, homeowners insurance, and mortgage insurance if your down payment is below 20 percent. It does not include utilities, maintenance, or repairs—those are separate costs you pay as the homeowner. A mortgage calculator (available free from most banks' websites) will show you what home price and down payment combination fits within your budget.

Here is a concrete example: if you earn $4,000 per month and can afford a $1,120 payment, and you have saved $30,000 for a down payment, a mortgage calculator will tell you the maximum home price you can borrow for. That number depends on current interest rates, which change over time. The point is to work backward from your monthly budget, not forward from the down payment you have saved. Many buyers save a down payment, then realize the monthly payment is too high for their income.

Closing costs are a separate expense you need to save for

When you buy a house, you pay fees at closing—the day the sale is finalized and you receive the keys. These closing costs typically range from 2 to 5 percent of the home price and cover things like the title search, appraisal, loan origination, homeowners insurance, and property taxes for the first few months. On a $300,000 house, closing costs might be $6,000 to $15,000.

You need to save for closing costs separately from your down payment. Some lenders allow you to roll closing costs into the loan (meaning you borrow the money instead of paying it upfront), but this increases your monthly payment. Other lenders require you to pay closing costs in cash at the closing table. Ask your lender early in the process whether closing costs can be financed or must be paid upfront, so you know how much total cash you need to save.

Building your savings plan: down payment, closing costs, and emergency cushion

Your total savings target has three parts. First, the down payment (3 to 20 percent of the home price). Second, closing costs (2 to 5 percent of the home price). Third, an emergency fund of 3 to 6 months of expenses, kept separate from your house fund.

Many first-time buyers drain their savings completely to buy a house, then face a crisis—a car repair, a job loss, a medical bill—and cannot pay it. Lenders actually prefer borrowers who have an emergency fund, because it shows you can handle unexpected costs without defaulting on the mortgage. If you have saved $40,000 total, consider putting $30,000 toward the down payment and closing costs, and keeping $10,000 as an emergency cushion.

The timeline for saving depends on your income and expenses. If you can save $500 per month, reaching a $30,000 down payment takes five years. If you can save $1,000 per month, it takes three years. Be realistic about what you can actually set aside each month without cutting essentials or going into debt. Saving for a house should not mean skipping meals, ignoring medical care, or borrowing money for daily expenses.

When to prioritize paying down debt before saving for a house

If you carry high-interest debt—credit cards, personal loans, or car loans with rates above 6 percent—lenders will factor that into your mortgage approval. A high debt-to-income ratio (the percentage of your monthly income that goes to debt payments) can lower the amount you are allowed to borrow, or raise your interest rate. Paying down debt before you apply for a mortgage often makes more financial sense than saving a larger down payment.

For example, if you have $10,000 in credit card debt at 18 percent interest, paying that off saves you $1,800 per year in interest alone. That money could go toward your down payment savings instead. Additionally, once that debt is gone, your monthly debt payments drop, which increases the mortgage amount you may have access to for. Talk to a mortgage lender about your specific situation—they can tell you whether paying down debt or saving a larger down payment will help you more.

How interest rates and home prices affect your savings target

Interest rates and home prices in your area change over time, which shifts how much you need to save. When interest rates are low, monthly payments are lower, so you can afford a higher-priced home with the same down payment. When interest rates are high, monthly payments are higher, so you can afford a lower-priced home. Home prices also vary by location—a $300,000 house in one city might cost $500,000 in another.

This means your savings target is not a fixed number. Instead, research homes in the area where you want to live, check current mortgage rates (available from bank websites and rate-comparison sites), and use a mortgage calculator to see what you can afford. Then work backward to figure out how much you need to save. Revisit this calculation every six months, because rates and prices shift.

Frequently Asked Questions

Can I buy a house with less than 3 percent down?

Some loan programs allow down payments as low as 0 to 3 percent, but they are less common and come with higher mortgage insurance costs or stricter income requirements. The Federal Housing Administration (FHA) offers loans with 3.5 percent down. VA loans (for military members) and USDA loans (for rural areas) sometimes allow 0 percent down. Ask a mortgage lender which programs you might may have access to for based on your situation.

What if I cannot save 20 percent down?

Most buyers do not put 20 percent down. A 5 to 10 percent down payment is common, and you will pay mortgage insurance, but you can still buy. The trade-off is a higher monthly payment. Calculate what you can afford monthly, then see what down payment percentage gets you there. Many buyers buy with 5 to 10 percent down and pay off the mortgage insurance later as they build equity.

Should I use my retirement savings for a down payment?

Generally, no. Retirement accounts like a 401(k) or IRA are meant for retirement, and withdrawing early usually means taxes and penalties. Some plans allow you to borrow against your balance (not withdraw), which you repay over time. Talk to your plan administrator about whether borrowing is an option before you touch retirement savings. Saving separately for a house is usually the better choice.

How long does it typically take to save for a down payment?

It depends on your income and how much you can save monthly. Saving $500 per month takes five years to reach $30,000. Saving $1,000 per month takes three years. Some people save faster by cutting expenses or earning extra income. Others take longer because their budget is tight. There is no standard timeline—it depends on your situation.

Do I need to save for repairs and maintenance after I buy?

Yes. Homeowners typically spend 1 to 2 percent of the home's value per year on maintenance and repairs. A $300,000 house might need $3,000 to $6,000 per year for things like roof repairs, plumbing fixes, or appliance replacement. This is separate from your mortgage payment. Budget for this in your monthly expenses before you buy, or you may struggle to afford the home.